Page 1
Service Manual
3G Storm Series
Wheelchairs
Arrow
®
RWD
®
™
Torque
Ranger X
SP RWD
™
RWD
DEALER: KEEP THIS MANUAL. THE PROCEDURES
IN THIS MANUAL MUST BE PERFORMED BY A
QUALIFIED TECHNICIAN.
Part No. 1104849 1 3G Storm Series® Wheelchairs
Page 2
WARNING
WARNING
WARNING BEFORE INITIAL USE
A QUALIFIED TECHNICIAN MUST PERFORM THE INITIAL SET UP
OF THIS WHEELCHAIR. ALSO, QUALIFIED TECHNICIAN MUST
PERFORM ALL PROCEDURES IN THE SERVICE MANUAL.
WHEELCHAIR USERS: DO NOT SERVICE OR OPERATE THIS
EQUIPMENT WITHOUT FIRST READING AND UNDERSTANDING
(1) THE OWNER’S OPERATOR AND MAINTENANCE MANUAL (2)
THE SEATING SYSTEMS MANUAL (IF APPLICABLE). IF YOU ARE
UNABLE TO UNDERSTAND THE WARNINGS, CAUTIONS AND
INSTRUCTIONS, CONTACT INVACARE TECHNICAL SUPPORT
BEFORE ATTEMPTING TO SERVICE OR OPERATE THIS EQUIPMENT
- OTHERWISE, INJURY OR DAMAGE MAY RESULT.
DEALERS AND QUALIFIED TECHNICIANS: DO NOT SERVICE OR
OPERATE THIS EQUIPMENT WITHOUT FIRST READING AND
UNDERSTANDING (1) THE OWNER’S OPERATOR AND
MAINTENANCE MANUAL (2) THE SERVICE MANUAL (IF APPLICABLE)
AND (3) THE SEATING SYSTEMS MANUAL (IF APPLICABLE). IF YOU
ARE UNABLE TO UNDERSTAND THE WARNINGS, CAUTIONS AND
INSTRUCTIONS, CONTACT INVACARE TECHNICAL SUPPORT
BEFORE ATTEMPTING TO SERVICE OR OPERATE THIS EQUIPMENT OTHERWISE, INJURY OR DAMAGE MAY RESULT.
SPECIAL NOTES
WARNING/CAUTION notices as used in this manual apply to hazards or
unsafe practices which could result in personal injury or property damage.
NOTICE
THE INFORMATION CONTAINED IN THIS DOCUMENT IS SUBJECT
TO CHANGE WITHOUT NOTICE.
WHEELCHAIR USER
As a manufacturer of wheelchairs, Invacare endeavors to supply a wide
variety of wheelchairs to meet many needs of the end user. However, final
selection of the type of wheelchair to be used by an individual rests solely
with the user and his/her healthcare professional capable of making such a
selection. Invacare highly recommends working with a certified rehab
technology supplier and/or a member of NRRTS or RESNA.
RESTRAINTS - SEAT POSITIONING STRAPS
Invacare recommends that wheelchair users NOT be transported in vehicles
of any kind while in wheelchairs. As of this date, the Department of
Transportation has not approved any tie-down systems for transportation of
a user while in a wheelchair, in a moving vehicle of any type.
It is Invacare’s position that users of wheelchairs should be transferred into
appropriate seating in vehicles for transportation and use be made of the
restraints made available by the auto industry. Invacare cannot and does not
recommend any wheelchair transportation systems.
3G Storm Series® Wheelchairs 2 Part No. 1104849
Page 3
TABLE OF CONTENTS
TABLE OF CONTENTS
NOTE: The information in this owner's manual applies to the ARROW, TORQUE SP, RANGER X,
and the RECLINER wheelchairs except where specified.
SPECIAL NOTES ............................................................................... 2
TYPICAL PRODUCT PARAMETERS ................................................... 6
ARROW .......................................................................................................................................................... 6
TORQUE SP ..................................................................................................................................................8
RANGER X ................................................................................................................................................. 10
SECTION 1 - GENERAL GUIDELINES ............................................... 12
REPAIR OR SERVICE INFORMATION ............................................................................................. 12
OPERATING INFORMATION............................................................................................................. 12
LABEL LOCATION .................................................................................................................................. 15
WARNING/CAUTION LABEL LOCATION ................................................................................... 16
SHIPPING TIE DOWN RESTRAINTS ............................................................................................... 16
SECTION 2 - TROUBLESHOOTING .................................................. 17
FIELD LOAD TEST ................................................................................................................................... 17
MOTOR TESTING ................................................................................................................................... 18
MOTOR BRUSH INSPECTION ........................................................................................................... 18
ELECTRO-MECHANICAL PARKING BRAKE TESTING............................................................ 19
TABLE OF CONTENTS
SECTION 3 - HARDWARE TORQUE SPECIFICATIONS ...................... 20
STANDARD SEAT FRAME .................................................................................................................... 20
VAN SEAT ................................................................................................................................................... 21
ASBA ............................................................................................................................................................. 22
BASE FRAME - CONVENTIONAL MOTOR/GEARBOX ............................................................ 23
BASE FRAME - STANDARD GEARLESS/BRUSHLESS AND
HEAVY DUTY GEARLESS/BRUSHLESS MOTORS ................................................................... 24
SECTION 4SECTION 4
SECTION 4 -
SECTION 4SECTION 4
REPLACING VAN SEAT ARMREST PADS....................................................................................... 25
SECTION 5 - UPHOLSTERY/POSITIONING STRAP ........................... 26
REPLACING VAN SEAT POSITIONING STRAP .......................................................................... 2 6
REPLACING BACK UPHOLSTERY .................................................................................................... 27
ARMSARMS
ARMS
ARMSARMS
................................................................................................................................................
........................................................................ 25
................................................................................................................................................
Part No. 1104849 3 3G Storm Series® Wheelchairs
Page 4
TABLE OF CONTENTS
SECTION 6 - SEAT FRAMESECTION 6 - SEAT FRAME
SECTION 6 - SEAT FRAME
SECTION 6 - SEAT FRAMESECTION 6 - SEAT FRAME
PREPARATION FOR REMOVING/INSTALLING SEAT FRAME
(STANDARD FRAME, ASBA AND VAN SEAT) ........................................................................ 29
REPLACING SAME SIZE STANDARD SEAT FRAME .................................................................. 31
REMOVING/INSTALLING STANDARD SEAT FRAME SUBASSEMBLY ................................ 31
CHANGING SEAT DEPTH................................................................................................................... 32
CHANGING SEAT WIDTH (STANDARD AND ASBA) ............................................................ 36
INSTALLING/REMOVING ASBA SUBASSEMBLY AND/OR
COMPONENT REPLACEMENT .................................................................................................... 38
INSTALLING/REMOVING VAN SEAT ASSEMBLY ....................................................................... 4 0
REPLACING VAN SEAT AND/OR VAN SEAT FRAME .............................................................. 40
CONVERTING FROM STANDARD SEAT FRAME TO
ASBA OR VICE VERSA ...................................................................................................................... 41
CONVERTING FROM ASBA TO VAN SEAT OR VICE VERSA ............................................... 42
TABLE OF CONTENTS
CONVERTING FROM STANDARD SEAT FRAME TO VAN SEAT OR VICE VERSA...... 43
REMOVING/INSTALLING SEAT PAN .............................................................................................. 43
SEAT ANGLE ADJUSTMENT ............................................................................................................... 45
SECTION 7 - BASE FRAME ............................................................. 46
REPLACING SEAT MOUNTING PLATES ....................................................................................... 46
REPLACING SEAT SUPPORT BRACKETS ...................................................................................... 47
REPLACING SEAT SUPPORT BRACKET T-NUTS ...................................................................... 48
REPLACING BATTERY CHARGER BRACKET AND T-NUT................................................... 49
REMOVING/INSTALLING SEAT STOP SCREWS ......................................................................... 50
..........................................................................................................................
.............................................................
..........................................................................................................................
2929
29
2929
SECTION 8 - BACK FRAME ............................................................ 51
REMOVING/INSTALLING CJ BACK BRACKETS ......................................................................... 5 1
CHANGING BACK HEIGHT ............................................................................................................... 53
BACK ANGLE ADJUSTMENT ............................................................................................................. 55
SECTION 9 - BATTERIES ................................................................ 56
WARNINGS FOR HANDLING AND REPLACING BATTERIES ............................................. 56
USING THE PROPER BATTERIES ......................................................................................................57
INSTALLING/REMOVING BATTERIES INTO/FROM BATTERY BOXES .............................. 59
DISCONNECTING/CONNECTING BATTERY CABLES .......................................................... 60
WHEN TO CHARGE BATTERIES ...................................................................................................... 6 5
CHARGING BATTERIES........................................................................................................................ 65
REPLACING BATTERIES ....................................................................................................................... 69
REMOVING/INSTALLING BATTERY BOXES ................................................................................. 71
SECTION 10 - WIRING HARNESS ................................................... 75
REMOVING/INSTALLING THE WIRING HARNESS................................................................... 75
ADJUSTING LIMIT SWITCH................................................................................................................ 79
SECTION 11 - RETENTION STRAP/RETAINER ................................ 81
REPLACING BATTERY BOX RETAINER BAR/RETAINER CLIP ............................................. 8 1
3G Storm Series® Wheelchairs 4 Part No. 1104849
Page 5
TABLE OF CONTENTS
SECTION 12 - WHEELS/MOTORS ..................................................... 83
REPLACING PNEUMATIC TIRES/TUBES - DRIVE WHEELS/CASTERS ............................... 8 3
REMOVING/INSTALLING DRIVE WHEELS.................................................................................... 83
REMOVING/INSTALLING DRIVE WHEEL HUB ........................................................................... 85
REMOVING/INSTALLING GB MOTOR SPACER ......................................................................... 8 6
REMOVING/INSTALLING ADPATER PLATE WITH STUDS.................................................... 8 6
INSTALLING WHEEL LOCK BRACKET ONTO WHEELCHAIR ........................................... 87
REMOVING/INSTALLING THE RIM AND/OR TIRES ................................................................. 8 8
REMOVING/INSTALLING CASTERS................................................................................................. 89
REPLACING FORKS ................................................................................................................................90
REMOVING/INSTALLING THE MOTOR ......................................................................................... 91
INSTALLING/REMOVING FENDERS ................................................................................................ 96
TABLE OF CONTENTS
SECTION 13 - ELECTRONICSSECTION 13 - ELECTRONICS
SECTION 13 - ELECTRONICS
SECTION 13 - ELECTRONICSSECTION 13 - ELECTRONICS
................................................................................................................
........................................................
................................................................................................................
100100
100
100100
REPOSITIONING MKIV JOYSTICK - VAN SEAT MODELS .................................................... 100
REMOVING/INSTALLING THE MKIV CONTROLLER ............................................................. 101
SECTION 14 - RECLINER .............................................................. 109
POSITIONING LIMIT SWITCH.........................................................................................................109
ADJUSTING LIMIT SWITCH.............................................................................................................. 110
REPLACING RECLINER CABLE ASSEMBLIES..............................................................................111
REPLACING/ADJUSTING GAS CYLINDERS................................................................................11 3
CHANGING BACK HEIGHT .............................................................................................................114
CHANGING SEAT DEPTH................................................................................................................. 116
CHANGING SEAT WIDTH ............................................................................................................... 117
INSTALLING/REPLACING ADJUSTABLE 16 TO 19-INCH DEEP
RECLINER SEAT FRAME ONTO ARROW OR X BASE FRAME ...................................... 117
SECTION 15 - RWD WHEELCHAIRS .............................................. 119
REMOVING/INSTALLING GROUP 24 BATTERY BOX SUB-FRAME ..................................119
REMOVING/INSTALLING 22NF BATTERY BOX TRAY .......................................................... 121
CONVERTING 22NF BATTERY BOX TRAY TO GROUP 24
BATTERY BOX SUB-FRAME .........................................................................................................121
SHOCK OR RUBBER ELEMENT REPLACEMENT ...................................................................... 1 24
SHOCK SPRING REPLACEMENT .................................................................................................... 1 27
REMOVING/INSTALLING GEARBOX ............................................................................................ 129
ADJUSTING WEIGHT DISTRIBUTION ......................................................................................... 130
REPOSITIONING THE MOTOR ....................................................................................................... 131
REPLACING SUSPENSION ARM FOR WHEELCHAIRS WITH
MOTOR/GEARBOX ASSEMBLY ................................................................................................... 135
REPLACING THE SUSPENSION ARM FOR WHEELCHAIRS WITH
GEARLESS/BRUSHLESS MOTOR ................................................................................................. 136
ANTI-TIPPER WHEEL REPLACEMENT ......................................................................................... 1 37
REMOVING/INSTALLING THE 3-INCH ANTI-TIP ASSEMBLY.............................................13 7
LIMITED WARRANTY .................................................................. 139
Part No. 1104849 5 3G Storm Series® Wheelchairs
Page 6
TYPICAL PRODUCT PARAMETERS - ARROW
TYPICAL PRODUCT PARAMETERS - ARROW
SEAT WIDTH RANGE:
Standard: 12 to 24-inches
Recliner: 14 to 24-inches
SEAT DEPTH RANGE:
Standard: 12 to 24-inches
Recliner: 14 to 24-inches
BACK HEIGHT RANGE:
Standard: 12 to 24-inches
Recliner: 18½ to 26-inches
BACK ANGLE RANGE:
TYPICAL PRODUCT
PARAMETERS - ARROW
Standard: 80o to 100
Recliner: 90o to 170
SEAT-TO-FLOOR
(approximate)
Standard: 17½-inches
Optional: 19¾-inches
OVERALL WIDTH OF BASE:
(w/o joystick) 25-inches
Overall Height:
Standard: 34¼-inches
Minimum: 34¼-inches
Maximum: 44¼-inches
Recliner
Low Seat Frame: 51½-inches
Med. Seat Frame: 53¾-inches
High Seat Frame: 55½-inches
OVERALL LENGTH
(without front riggings)
Standard: 29½-inches
Long Frame: 32½-inches
WEIGHT:
GEARLESS/BRUSHLESS MOTOR
W/O GP24 Batteries: 174 lbs
With GP24Batteries: 278 lbs
Shipping (approx.): 214 lbs
4 POLE MOTOR (BEFORE 1/26/04)
Without Batteries: 162 lbs
With Batteries: 266 lbs
Shipping (approx.): 202 lbs
DRIVE AXLE: Adjustable
Non-Recliners ONLY.
DRIVE WHEELS/TIRES:
(Foam Filled or Pneumatic)
Standard: 14 x 3-inches
Optional (Before 1/26/04): 14 x 4-inches
o
o
21-inches
3G Storm Series® Wheelchairs 6 Part No. 1104849
Page 7
TYPICAL PRODUCT PARAMETERS - ARROW
TYPICAL PRODUCT PARAMETERS - ARROW
PHYSICAL DIMENSIONS
CASTERS W/PRECISION SEALED BEARINGS
SEMI-PNEUMATIC:
Standard: 8 X 2¼-inches
Option: 6 X 2-inches (w/ shock fork)
PNEUMATIC OR FOAM FILLED:
Standard: 8 X 2-inches
Option: 9 X 2¾-inches
ANTI-TIPPERS (3-INCH WHEELS): Standard
CASTER FORKS: Standard, Shock Fork (Optional)
FOOTRESTS: Telescoping Front Rigging Supports,
Swing-Away (Std), Heavy Duty (Opt.),
2-in. and 4-in. longer Pivot Slide Tube (Opt)
ARMRESTS: Flip Back, Fixed or Adjustable Height
(Desk and Full Length)
SEAT ANGLE ADJUSTMENT: Adjustable (0
o
to 10o)
PARAMETERS - ARROW
TYPICAL PRODUCT
SEAT CUSHION: Cushion (Optional)
CHAIR UPHOLSTERY OPTIONS: Nylon
BATTERY REQUIREMENTS: See chart on page 70
WEIGHT LIMITATIONS:
Arrow with gearless/brushless motor (after 1/25/04) up to 400 lbs
Arrow with gearless/brushless motor (before 1/26/04) up to 300 lbs
Arrow with 4 pole motor up to 400 lbs
PERFORMANCE BEFORE 1/26/04
RATING SPEED RANGE
G/B MOTOR 4 POLE MOTOR
300 lbs up to 8 mph N/A up to 29 miles
400 lbs N/A up to 4.5 mph up to 19 miles
PERFORMANCE AFTER 1/25/04
RATING SPEED RANGE
G/B MOTOR 4 POLE MOTOR
400 lbs up to 7 mph N/A up to 33 miles
Range will vary with battery conditions, surface, terrain and operators weight.
Part No. 1104849 7 3G Storm Series® Wheelchairs
Page 8
TYPICAL PRODUCT PARAMETERS - TORQUE SP
TYPICAL PRODUCT PARAMETERS -
SEAT WIDTH RANGE:
Standard: 12 to 22-inches
Recliner: 14 to 22-inches
SEAT DEPTH RANGE:
Standard: 12 to 22-inches
Recliner: 16 to 22-inches
BACK HEIGHT RANGE:
Standard: 12 to 24-inches
Recliner: 18½ to 26-inches
TYPICAL PRODUCT
PARAMETERS - TORQUE SP
BACK ANGLE RANGE:
Standard: 80
Recliner: 90o to 170
SEAT-TO-FLOOR
(approximate)
Standard: 17½-inches
Optional: 19¾-inches or 21-inches
OVERALL WIDTH OF BASE (w/o joystick): 25-inches
Overall Height:
Standard: 34¼-inches
Minimum: 34¼-inches
Maximum: 44¼-inches
Recliner
Low Seat Frame: 51½-inches
Med. Seat Frame: 53¾-inches
High Seat Frame: 55½-inches
OVERALL LENGTH (without front riggings)
Standard: 29½-inches
Long Frame: 32½-inches
WEIGHT:
MODEL TRUTK (GEARLESS/BRUSHLESS MOTOR)
W/O GP24 Batteries: 166 lbs
With GP24Batteries: 270 lbs
Shipping (approx.): 206 lbs
MODEL 251-300TQ (4 POLE MOTOR)
Without Batteries: 154 lbs
With Batteries: 228 lbs
Shipping (approx.): 194 lbs
MODEL 301-400TQHD (4 POLE MOTOR)
Without Batteries: 154 lbs
With Batteries: 258 lbs
Shipping (approx.): 194 lbs
DRIVE AXLE (NON-RECLINERS ONLY): Adjustable
DRIVE WHEELS/TIRES:
(Foam Filled or Pneumatic)
Standard: 14 X 3-inches
Optional*: 14 X 4-inches
*Note: Not available on gearless/brushless motors after 1/25/04.
TORQUE SP
o
to 100
o
o
3G Storm Series® Wheelchairs 8 Part No. 1104849
Page 9
TYPICAL PRODUCT PARAMETERS - TORQUE SP
TYPICAL PRODUCT PARAMETERS -
TORQUE SP
PHYSICAL DIMENSIONS
CASTERS W/PRECISION SEALED BEARINGS
SEMI-PNEUMATIC:
Standard: 8 x 1¼-inches
Option: 6 x 2-inches (w/ shock fork)
PNEUMATIC OR FOAM FILLED:
Standard: 8 x 2-inches
Option: 9 x 2¾-inches
ANTI-TIPPERS (3-INCH WHEELS): Standard
CASTER FORKS: Standard, Shock Fork (Optional)
FOOTRESTS: Telescoping Front Rigging Supports,
Swing-Away, Heavy Duty,
4-in. long Pivot Slide Tube (Opt)
ARMRESTS: Flip Back, Fixed or Adjustable Height
(Desk and Full Length)
SEAT ANGLE ADJUSTMENT: Adjustable (0o to 10o)
SEAT CUSHION: Cushion (Optional)
PARAMETERS - TORQUE SP
TYPICAL PRODUCT
CHAIR UPHOLSTERY OPTIONS: Naugahyde and Nylon
BATTERY REQUIREMENTS: See chart on page 70.
PERFORMANCE BEFORE 1/26/04
RATING SPEED RANGE
G/B MOTOR 4 POLE MOTOR
251-300 lbs (24:1 ratio) up to 4.5 mph up to 19
(18:1 ratio) up to 6.5 mph up to 19
251-300 lbs up to 8 mph up to 29
up to 4.5 mph up to 19
301-350 lbs N/A up to 4.5 mph up to 19
PERFORMANCE AFTER 1/25/04
RATING SPEED RANGE
G/B MOTOR 4 POLE MOTOR
251-300 lbs (24:1 ratio) up to 4.5 mph up to 19
(18:1 ratio) up to 6.5 mph up to 19
251-300 lbs up to 7 mph up to 33
up to 4.5 mph up to 19
301-400 lbs up to 7 mph up to 4.5 mph up to 19
Range will vary with battery conditions, surface, terrain and operator’s weight.
Part No. 1104849 9 3G Storm Series® Wheelchairs
Page 10
TYPICAL PRODUCT PARAMETERS - RANGER X
TYPICAL PRODUCT PARAMETERS -
SEAT WIDTH RANGE:
Standard: 12 to 22-inches
Recliner: 14 to 22-inches
SEAT DEPTH RANGE:
Standard: 12 to 22-inches
Recliner: 14 to 22-inches
BACK HEIGHT RANGE:
Standard: 12 to 24-inches
Recliner: 18½ to 26-inches
TYPICAL PRODUCT
PARAMETERS - RANGER X
BACK ANGLE RANGE:
Standard: 80o to 100
Recliner: 90o to 170
SEAT-TO-FLOOR
(approximate)
Standard: 17½-inches
Optional: 19¾-inches
OVERALL WIDTH OF BASE (w/o joystick): 25-inches
Overall Height:
Standard: 34¼-inches
Minimum: 34¼-inches
Maximum: 44¼-inches
Recliner
Low Seat Frame: 51½-inches
Med. Seat Frame: 53¾-inches
High Seat Frame: 55½ inches
OVERALL LENGTH
(without front riggings)
Standard: 29½-inches
Long Frame: 32½-inches
WEIGHT:
GEARLESS/BRUSHLESS MOTOR
W/O GP24 Batteries: 174 lbs
With GP24Batteries: 278 lbs
Shipping (approx.): 214 lbs
4 POLE MOTOR
Without Batteries: 162 lbs
With Batteries: 266 lbs
Shipping (approx.): 202 lbs
DRIVE AXLE: Adjustable
Non-Recliners ONLY.
DRIVE WHEELS/TIRES:
(Foam Filled or Pneumatic)
Standard: 14 X 3-inches
Optional*: 14 X 4-inches
*Note: Not available on gearless/brushless motors after 1/25/04.
RANGER X
o
o
21-inches
3G Storm Series® Wheelchairs 10 Part No. 1104849
Page 11
TYPICAL PRODUCT PARAMETERS - RANGER X
TYPICAL PRODUCT PARAMETERS -
RANGER X
PARAMETERS - RANGER X
PHYSICAL DIMENSIONS
CASTERS W/PRECISION SEALED BEARINGS
SEMI-PNEUMATIC:
Standard: 8 X 2-1/4-inches
Option: 6 X 2-inches (w/ shock fork)
PNEUMATIC OR FOAM FILLED:
Standard: 8 X 2-inches
Option: 9 X 2-3/4-inches
ANTI-TIPPERS (3-INCH WHEELS): Standard
CASTER FORKS: Standard, Shock Fork (Optional)
FOOTRESTS: Telescoping Front Rigging Supports,
Swing-Away (Std.), Heavy Duty (Opt.),
4-in. longer Pivot Slide Tube (Opt.)
ARMRESTS: Flip Back, Fixed or Adjustable Height
(Desk and Full Length)
SEAT ANGLE ADJUSTMENT: Adjustable (0o to 10o)
SEAT CUSHION: Cushion (Optional)
CHAIR UPHOLSTERY OPTIONS: Naugahyde and Nylon
TYPICAL PRODUCT
BATTERY REQUIREMENTS: Group 24
WEIGHT LIMITATIONS: up to 300 lbs
PERFORMANCE BEFORE 1/26/04
RATING SPEED RANGE
G/B MOTOR 4 POLE MOTOR
300 lbs up to 6.5 mph up to 19
up to 8 mph up to 29
PERFORMANCE AFTER 1/25/04
RATING SPEED RANGE
G/B MOTOR 4 POLE MOTOR
300 lbs up to 6.5 mph up to 19
400 lbs up to 7 mph up to 33
Range will vary with battery conditions, surface, terrain and operators weight.
Part No. 1104849 11 3G Storm Series® Wheelchairs
Page 12
This Section Includes the Following:
Repair or Service Information
Operating Information
Label Location
Warning/Caution Label Location
Shipping Tie Down Restraints
REPAIR OR SERVICE INFORMATION
Setup of the Electronic Control Unit is to be performed ONLY by individuals
certified by Invacare. The final tuning adjustments of the controller may
affect other activities of the wheelchair. Damage to the equipment could
occur under these circumstances. If non-certified individuals perform any
GENERAL GUIDELINES
work on these units, the Limited Warranty is void.
OPERATING INFORMATION
Professionals of the healthcare field or other persons should only make
performance adjustments fully conversant with this process and the
wheelchair operator’s capabilities. Incorrect settings could cause injury to
the driver, bystanders, damage to the chair and to surrounding property.
GENERAL GUIDELINESSECTION 1
GENERAL WARNINGS
After the wheelchair has been set up/adjusted, check to make sure that the
wheelchair performs to the specifications entered during the setup
procedure. If the wheelchair does NOT perform to specifications, turn the
wheelchair OFF immediately and reenter setup specifications. Repeat this
procedure until the wheelchair performs to specifications.
DO NOT leave the power button ON when entering or exiting your
wheelchair.
Avoid storage or use near external flames or combustible products.
ELECTRICAL
Grounding Instructions:
DO NOT, under any circumstances, cut or remove the round grounding
prong from any plug used with or for Invacare products. Some devices are
equipped with three-prong (grounding) plugs for protection against
possible shock hazards. Where a two-prong wall receptacle is encountered,
it is the personal responsibility and obligation of the customer to contact a
qualified electrician and have the two-prong receptacle replaced with a
properly grounded three-prong wall receptacle in accordance with the
National Electrical Code. If you must use an extension cord, use ONLY a
three-wire extension cord having the same or higher electrical rating as the
device being connected. In addition, Invacare has placed RED/ORANGE
WARNING TAGS on some equipment. DO NOT remove these tags.
3G Storm Series® Wheelchairs 12 Part No. 1104849
Page 13
GENERAL GUIDELINES
SECTION 1
BATTERIES
The warranty and performance specifications contained in this manual are
based on the use of deep cycle gel cell batteries. Invacare strongly
recommends their use as the power source for this unit.
Carefully read battery/battery charger information prior to installing,
servicing or operating your wheelchair.
RAIN TEST
INVACARE has tested its power wheelchairs in accordance with ISO 7176
“Rain Test”. This provides the end user or his/her attendant sufficient time
to remove his/her power wheelchair from a rain storm and retain
wheelchair operation.
CAUTION
Failure to follow these instructions will void your limited warranty.
Do determine and establish your particular safety limits by practicing
bending, reaching and transferring activities in the presence of a qualified
healthcare professional BEFORE attempting active use of the wheelchair.
GENERAL GUIDELINES
DO NOT attempt to reach objects if you have to move forward in your
seat.
DO NOT attempt to reach objects if you have pick them up from the floor
by reaching between your knees.
DO NOT lean over the top of the back upholstery to reach objects from
behind, as this may cause the wheelchair and/or seating system (if any) to
tip over.
DO NOT shift your weight or sitting position toward the direction you are
reaching as the wheelchair and/or seating system (if any) may tip over.
DO NOT use and escalator to move a wheelchair between floors. Serious
bodily injury may occur.
CAUTION
Wheel Locks are NOT brakes. DO NOT attempt to stop a moving
wheelchair with the wheel locks.
DO NOT service or adjust your wheelchair while occupied, unless
otherwise noted.
DO NOT operate on roads, streets or highways.
DO NOT climb, go up or down ramps or traverse slopes greater than 9°.
DO NOT attempt to move up or down an incline that has a water, ice or oil
film.
DO NOT use with broken or missing joystick knob.
DO NOT use if joystick does not spring back to the neutral position or
becomes sticky or sluggish.
Part No. 1104849 13 3G Storm Series® Wheelchairs
Page 14
For safe product function, material compatibility, proper installation,
operation and maintenance, you must only use parts, accessories and
adapters manufactured or supplied by Invacare. DO NOT use any other
parts, accessories, or adapters. Otherwise, the warranty is void.
DO NOT stand on the frame of the wheelchair.
DO NOT use the footplates as a platform. When getting in or out of the
wheelchair, make sure that the footplates are in the upward position or
swing footplates toward the outside of the wheelchair.
DO NOT attempt to drive over curbs or obstacles, unless your wheelchair
has a climbing feature. Doing so may cause your wheelchair to turn over
GENERAL GUIDELINES
and cause bodily harm or damage to the chair.
Never leave an unoccupied wheelchair unattended at any time, especially
on an incline.
DO NOT attempt to lift the wheelchair by any removable (detachable)
parts. Lifting by means of any removable (detachable) parts of a wheelchair
may result in injury to the user or damage to the wheelchair.
GENERAL GUIDELINESSECTION 1
CAUTION
WARNING
DO NOT overtighten hardware attaching to the frame. This could cause
damage to the frame tubing.
ALWAYS DO keep hands and fingers clear of moving parts to avoid injury.
ALWAYS DO wear your seat positioning strap.
ALWAYS DO check foam grips for looseness before using the wheelchair.
If loose, contact a qualified technician for instructions.
ALWAYS DO engage both wheel locks AND reduce the gap distance
BEFORE transferring to and from the wheelchair. Turn all casters toward
the object you are transferring onto.
WEIGHT TRAINING WARNING
Invacare DOES NOT recommend the use of its wheelchairs and seating
systems as a apparatus for weight training. Invacare wheelchairs and seating
systems have NOT been designed or tested as a seat for any kind of weight
training. If you use the wheelchair or seating system for weight training,
INVACARE SHALL NOT BE LIABLE FOR BODILY INJURY AND THE
LIMITED WARRANTY IS VOID.
3G Storm Series® Wheelchairs 14 Part No. 1104849
Page 15
GENERAL GUIDELINES SECTION 1
TIRE PRESSURE WARNING
The recommended tire pressure is listed on the side wall of each tire. DO
NOT use your wheelchair unless it has the proper tire pressure. (P.S.I.).
DO NOT overinflate the tires. A qualified technician MUST perform
replacement of a pneumatic tire or tube. Failure to follow these warnings
may cause the tire to explode and cause bodily harm.
CAUTION: WEIGHT LIMITATION
Please refer to TYPICAL PRODUCT PARAMETERS to determine the
weight limit (total combined weight of user and any attachments) of your
wheelchair model. Do not exceed the limit- otherwise, injury or damage
may result.
LABEL LOCATION
LABEL USED BEFORE 2/13/2001
NOTE: These caution labels are only found on battery boxes used with the gearless/brushless
motor.
GROUP 24
BATTERIES
22NF BATTERIES
GENERAL GUIDELINES
LABEL USED AFTER 2/13/2001
Part No. 1104849 15 3G Storm Series® Wheelchairs
Page 16
WARNING/CAUTION LABEL LOCATION
GENERAL GUIDELINES
GENERAL GUIDELINESSECTION 1
SUSPENSION ARM
USED
WITH
CONVENTIONAL
MOTOR/GEARBOX
ASSEMBLY
SUSPENSION ARM
NOTE: WARNING LABEL also
found on side frame near the
rear of the chair.
MUST
WITH GEARLESS/
BRUSHLESS MOTOR
1070497
USED
SHIPPING TIE DOWN RESTRAINTS
Invacare recommends that wheelchair users NOT be transported in
vehicles of any kind while in wheelchairs. As of this date, the Department of
Transportation has not approved any tie-down systems for transportation
of a user while in a wheelchair, in a moving vehicle of any type.
Frame end cap can only be used as a shipping tie-down point for an
UNOCCUPIED wheelchair.
FRONT OF
WHEELCHAIR
REAR OF
WHEELCHAIR
Frame
End
Caps
3G Storm Series® Wheelchairs 16 Part No. 1104849
Base Frame
Page 17
SECTION 2TROUBLESHOOTING
This Section Includes the Following:
Field Load Test
Motor Testing
Motor Brush Inspection
Electro-Mechanical Parking Brake Testing
FIELD LOAD TEST (FIGURE 1)
NOTE: The following test can also be performed through the controller of the wheelchair along
with a remote programmer. Refer to the
chair.
Old batteries lose their ability to store and release power, due to increased internal
resistance. This means that as you try to take power from the battery, some of that
power is used up in the process of passing through the battery, resulting in less voltage
at the posts. The more power drawn, the lower the voltage available. When this lost
voltage drops the output 1.0 volts under load (2.0 for a pair), replace the batteries.
Testing under load is the only way to spot this problem. While special battery load
testing equipment is available, it is costly and difficult to transport.
ELECTRONICS MANUAL supplied with each wheel-
TROUBLESHOOTING
Use a digital voltmeter to check battery charge level at the charger connector. It is located
on the base of the wheelchair frame.
NOTE: READ the instructions CAREFULLY
before using the digital voltmeter.
Battery Charger
Connector
(-)
(+)
NOTE: Invacare recommends that ONLY
qualified service personnel perform this test.
1. Ensure that power is OFF.
2. Make sure battery is fully charged. An
Digital Voltmeter
extremely discharged battery will exhibit
the same symptoms as a bad one.
FIGURE 1 - FIELD LOAD TEST
3. Remove the footrests from the wheelchair and place the CASTERS of the wheelchair
against a wall, workbench or other stationary object.
4. Place the voltmeter leads into the charger plug on the wheelchair. Most digital voltmeters
are not affected by polarity, however, analog meters (meters with swinging needles) can be
and should be used carefully. A good meter reading should be 25.5 to 26 VDC.
5. Have two (2) individuals (one [1] on each arm) apply as much downward pressure as
possible on the arms of the wheelchair.
6. Turn the wheelchair ON and push the joystick forward, trying to drive the wheelchair
through the stationary object. This puts a heavy load on the batteries as they try to
push through the stationary object. Read the meter while the motors are straining to
determine the voltage under load.
NOTE: If the voltage drops to less than 23.5 volts from a pair of fully charged batteries while
under load, they should be replaced regardless of the unloaded voltages.
Part No. 1104849 17 3G Storm Series® Wheelchairs
Page 18
SECTION 2 TROUBLESHOOTING
MOTOR TESTING (FIGURE 2)
NOTE: This procedure should only be
performed on wheelchairs with the
conventional motor/gearbox assembly. For
gearless/brushless motors, there are no
serviceable parts. Return motor to
manufacturer for testing.
1. On the 4-pin motor connector, locate
the two (2) contacts in the red and
black housings.
2. Set the digital multimeter to measure
TROUBLESHOOTING
ohms (Ω).
3. Measure the resistance between the
two (2) motor contacts.
Ohmmeter
Ohmmeter
NOTE: A normal reading is between 1 and 5
Motor Connector
ohms (Ω). A reading of 0 ohms (Ω) or in
excess of 15 ohms (Ω) indicates a problem.
Motor Connector
FIGURE 2 - MOTOR TESTING
High readings are generally caused by bad
connections and/or damaged brushes. Contact
authorized dealer or Invacare.
MOTOR BRUSH INSPECTION (FIGURE 3)
NOTE: This procedure should only be performed on wheelchairs with conventional motor/
gearbox assembly.
There are two (2) contact brushes on
STORM motors located under the brush
caps on the motor housing. If these caps
are hard to remove they are either
overtightened or the motor has become
very hot. Let motors cool. If caps still
cannot be removed, it is recommended
that the motor be sent to Invacare
Technical Services for inspection/repair.
NOTE: It is very important to note which way
the brush comes out of the motor. The brush
MUST be placed into the motor exactly the
same way to ensure good contact with the
commutator.
4 Pin Motor Connector
FIGURE 3 - MOTOR BRUSH
Cap
Motor
INSPECTION
3G Storm Series® Wheelchairs 18 Part No. 1104849
Page 19
SECTION 2TROUBLESHOOTING
Once the motor brush caps have been removed, pull the brushes out of the motor. The
end of the brushes should be smooth and shiny and the spring should not be damaged or
discolored. If one or both of the brushes are damaged, only the damaged or worn
brushes need be replaced. It is very important that any time a brush is replaced, it must
be “burned in”. This is accomplished by running the motor for one hour in each
direction with a half hour break in-between. This should also be done with little or no
load on the motor, i.e., put the wheelchair up on blocks so the drive (large) wheels do
not contact the ground and run the wheelchair. A motor with only one brush replaced
will only carry a small percentage of its rated load capacity until the NEW brush is
burned in.
ELECTRO-MECHANICAL PARKING BRAKE TESTING
(FIGURE 4)
NOTE: This procedure should only be performed on wheelchairs with conventional motor/
gearbox assembly.
1. On the four-pin motor connector, locate the side by side connectors in the black
housings.
TROUBLESHOOTING
2. Set the digital multimeter to read ohms (Ω).
3. Measure the resistance between the two (2) brake contacts. A normal reading is 100
ohms (Ω). A reading of 0 ohms (Ω) or a very high reading; i.e., MEG ohms or O.L.
(out of limit) indicates a shorted brake or an open connection respectively. If either
condition exists, send the motor to Invacare Technical Service for inspection/repair.
CAUTION
A shorted electro-mechanical brake
will damage the brake output section
in the controller. DO NOT connect a
shorted electro-mechanical brake to
a good controller module. A shorted
brake MUST be replaced.
4 Pin Motor Connector
Ohmmeter
NOTE: A bad motor can damage the
controller module but a bad controller will
NOT damage a motor.
FIGURE 4 - ELECTRO-
MECHANICAL PARKING BRAKE
TESTING
Part No. 1104849 19 3G Storm Series® Wheelchairs
Page 20
SECTION 3 HARDWARE TORQUE SPECIFICATIONS
HARDWARE TORQUE SPECIFICATIONS
*Loctite® and
SPECIFICATIONS
HARDWARE TORQUE
Torque to
75 in-lbs
STANDARD SEAT FRAME
*Torque to
60 in-lbs
*Loctite and
Torque to
75 in-lbs
**Torque to
156 in-lbs
Torque to
156 in-lbs
**Torque to
156 in-lbs
NOTE:
* These torque specifications also apply to the ASBA assembly.
** These torque specifications also apply to the van seat and ASBA assemblies.
3G Storm Series® Wheelchairs 20 Part No. 1104849
Page 21
SECTION 3HARDWARE TORQUE SPECIFICATIONS
HARDWARE TORQUE SPECIFICATIONS
*VAN SEAT
HARDWARE TORQUE
SPECIFICATIONS
Torque to
156 in-lbs
Loctite and Torque to
75 in-lbs
Torque to
156 in-lbs
* NOTE: For additional torque specifications, refer to the torque specifications drawing for the
standard seat frame assembly.
Part No. 1104849 21 3G Storm Series® Wheelchairs
Page 22
SECTION 3 HARDWARE TORQUE SPECIFICATIONS
HARDWARE TORQUE SPECIFICATIONS
*ASBA
(ADJUSTABLE SEAT BACK ANGLE)
Torque to
156 in-lbs
Torque to
156 in-lbs
SPECIFICATIONS
HARDWARE TORQUE
Torque to
75 in-lbs
Torque to
156 in-lbs
Torque to
156 in-lbs
* NOTE: For additional torque specifications, refer to the torque specifications drawing for the
standard seat frame assembly.
3G Storm Series® Wheelchairs 22 Part No. 1104849
Page 23
SECTION 3HARDWARE TORQUE SPECIFICATIONS
HARDWARE TORQUE SPECIFICATIONS
BASE FRAME - CONVENTIONAL MOTOR/GEARBOX
REAR OF
WHEELCHAIR
SPECIFICATIONS
HARDWARE TORQUE
Torque to
156 in-lbs
(Torque to
156 in-lbs
and back
off 1/4 turn)
Loctite and torque to
156 in-lbs
Loctite and
Torque to
156 in-lbs
Torque to
156 in-lbs
Torque to
85 ft-lbs
FRONT OF
WHEELCHAIR
HARDWARE TORQUE
SPECIFICATIONS
Torque to
540 in-lbs
Torque to
156 in-lbs
Loctite and torque
to 75 in-lbs
Wheel Halves -
Torque to 156 in-lbs
8-inch Wheels -
Torque to 120 in-lbs
9-inch Wheels -
Torque to 156 in-lbs
Wheel Halves
8-inch - Torque to 18 in-lbs
9-inch - Torque to 156 in-lbs
Part No. 1104849 23 3G Storm Series® Wheelchairs
Page 24
SECTION 3 HARDWARE TORQUE SPECIFICATIONS
HARDWARE TORQUE SPECIFICATIONS
BASE FRAME - STANDARD GEARLESS/BRUSHLESS MOTOR
(FOR WHEELCHAIRS BUILT BEFORE 1/26/04)
NOTE: All torque specifications called out for the conventional motor/gearbox assembly are
applicable to the gearless/brushless motor except for the specs called out below.
SPECIFICATIONS
HARDWARE TORQUE
Adjustment
Screw
HARDWARE TORQUE
SPECIFICATIONS
Torque
to 75 in-lbs
Torque to 13 ft-lbs
Torque to 25 in-lbs
Torque to 13 ft-lbs
BASE FRAME - HEAVY DUTY GEARLESS/BRUSHLESS MOTOR
Torque to 13 ft-lbs
3G Storm Series® Wheelchairs 24 Part No. 1104849
Page 25
ARMS
This Section Includes the Following:
Replacing Van Seat Armrest Pads
SECTION 4
WARNING
After ANY adjustments, repair or service and BEFORE use, make sure that
all attaching hardware is tightened securely - otherwise injury or damage
may result.
REPLACING VAN SEAT ARMREST PADS (FIGURE 1)
1. Remove the locknut and washer from the outside of the armrest pad.
2. Remove the mounting screw securing the armrest pad to the armrest post.
3. Position the new armrest pad so the mounting holes align with the armrest post
mounting holes.
4. Secure the armrest pad to the armrest post with the mounting screw, washer and
locknut removed in steps 1-2.
NOTE: The mounting screw should be installed fromt he inside of the wheelchair frame.
ARMS
Armrest Pad
Armrest Pad Mounting Hole
Mounting Screw
Armrest Post
Mounting Hole
Armrest Post
Washer
Locknut
FIGURE 1 - REPLACING VAN SEAT ARMREST PADS
Part No. 1104849 25 3G Storm Series® Wheelchairs
Page 26
UPHOLSTERY/POSITIONING STRAPSECTION 5
This Section Includes the Following:
Replacing Van Seat Positioning Strap
Replacing Back Upholstery
WARNING
After ANY adjustments, repair or service and BEFORE use, make sure that
all attaching hardware is tightened securely - otherwise injury or damage
may result.
REPLACING VAN SEAT POSITIONING STRAP
UPHOLESTERY/
POSITIONING STRAP
(FIGURE 1)
1. Remove the van style seat from the van seat frame. Refer to INSTALLING/REMOVING
VAN SEAT ASSEMBLY in SECTION 6 of this manual.
2. Remove the two (2) rear mounting screws, washers, and locknuts that secure the
seat positioning straps to the van seat frame.
NOTE: The washer is positioned between the seat positioning strap and the mounting screw.
3. Secure the NEW seat positioning strap halves with the mounting screws, washers
and locknuts to the van seat frame and torque to 75 in-lbs.
4. Reinstall the van style seat to the van seat frame. Refer to INSTALLING/REMOVING
VAN SEAT ASSEMBLY in SECTION 6 of this manual.
Van Seat Frame
Seat Positioning
Strap
REAR OF SEAT
FRAME
Mounting
Screw
Locknuts
Washer
FRONT OF
SEAT FRAME
FIGURE 1 - REPLACING VAN SEAT POSITIONING STRAP
3G Storm Series® Wheelchairs 26 Part No. 1104849
Page 27
UPHOLSTERY/POSITIONING STRAP SECTION 5
REPLACING BACK UPHOLSTERY (FIGURE 2)
1. Remove one (1) armrest from the wheelchair. Refer to INSTALLING/REMOVING
FLIP BACK ARMRESTS in SECTION 4 of the Owner’s Manual, part number 1104782
or 1123757.
2. If applicable, remove the two (2) mounting screws and locknuts that secure the
spreader bar to the back canes.
3. Remove the two (2) mounting screws and washers that secure the existing back
upholstery to the back canes.
4. Cut the tie-wraps that secure the bottom of the existing back upholstery to the back
canes.
NOTE: Note the back angle before disassembly for proper reinstallation.
5. On the side of the wheelchair that the armrest was removed, remove one (1) of the
mounting screws, washer, spacer, and locknut that secures the back cane to the seat
frame.
NOTE: To avoid losing the insert in each back cane, thread the mounting screw just removed
through the cane from the inside of the wheelchair to hold the insert in place.
POSITIONING STRAP
UPHOLESTERY/
6. Remove the other mounting screw, washer, spacer, and locknut that secures the
back cane to the seat frame.
7. Slide the back cane out of the spreader bar (if applicable) and the existing back
upholstery.
8. Remove other armrest from the chair. Refer to INSTALLING/REMOVING FLIP
BACK ARMRESTS in SECTION 4 of the Owner’s Manual, part number 1104782 or
1123757.
9. Repeat STEPS 5-7 for the opposite side of the wheelchair.
10. Slide the other back cane out of the spreader bar (if applicable) and the existing back
upholstery.
11. Slide one (1) back cane into NEW back upholstery and through spreader bar (if
applicable).
12. Secure back cane to the seat frame from the outside of the wheelchair with the
existing two (2) mounting screws, washers, spacers, and locknuts. Use Loctite 242
and torque to 75 in-lbs.
13. Repeat STEPS 11-12 for opposite back cane.
14. Secure the top of the new back upholstery to the back canes with the two (2) existing
mounting screws.
Part No. 1104849 27 3G Storm Series® Wheelchairs
Page 28
UPHOLSTERY/POSITIONING STRAPSECTION 5
NOTE: When replacing the back upholstery, back assembly or changing back height, follow these
guidelines for spreader bar height:
STANDARD MODELS
BACK HEIGHT
16-inches* 5-inches
17-inches* 5-inches
18-19-inches* 7-inches
20-24-inches 7-inches
NOTE: Spreader Bar required on ALL back heights between 20-24-inches. *Spreader bar required
on back heights 16,17,18, or 19 ONLY if the width or depth of the chair exceeds 19-inches.
◆◆
◆ Height of Spreader Bar from Bottom of Back Canes to Top of Spreader Bar Clamp.
UPHOLESTERY/
◆◆
POSITIONING STRAP
BACK HEIGHT
16-17-inches 5-inches
18-24-inches 7-inches
NOTE: Spreader bar required on all back heights.
◆◆
◆Height of Spreader Bar from Bottom of Back Canes to Top of Spreader Bar Clamp.
◆◆
15. If applicable, reposition the spreader bar at the correct height for the corresponding
back height and torque the mounting hardware to 60 in-lbs.
16. Reinstall the armrest onto the wheelchair. Refer to INSTALLING/REMOVING FLIP
BACK ARMRESTS in SECTION 4 of the Owner’s Manual, part number 1104782 or
1123757.
◆◆
◆ SPREADER BAR HEIGHT
◆◆
HEAVY DUTY MODELS
◆◆
◆ SPREADER BAR HEIGHT
◆◆
Back Cane
Mounting
Screw
Washer
Back
Upholstery
Insert
Mounting Screws
Torque to 75 in-lbs
Locknuts
Spacers
Locknut
Spreader
Bar
Mounting
Screw
Torque
to 60 in-lbs
Washers
FIGURE 2 - REPLACING BACK UPHOLSTERY
3G Storm Series® Wheelchairs 28 Part No. 1104849
Page 29
SEAT FRAME
This Section Includes the Following:
Preparation for Removing/Installing Seat Frame (Standard Frame,
ASBA, and Van Seat)
Replacing Same Size Standard Seat Frame
SECTION 6
Removing/Installing Standard Seat Frame Subassembly
Changing Seat Depth
Changing Seat Width (Standard and ASBA)
Installing/Removing ASBA Subassembly and/or Component Replacement
Installing/Removing Van Seat Assembly
Replacing Van Seat and/or Van Seat Frame
Converting From Standard Seat Frame to ASBA or Vice Versa
Converting From ASBA to Van Seat or Vice Versa
Converting From Standard Seat Frame to Van Seat or Vice Versa
Removing/Installing Seat Pan
Seat Angle Adjustment
WARNINGWARNING
WARNING
WARNINGWARNING
After ANY adjustments, repair or service and BEFORE use, make sure that
all attaching hardware is tightened securely - otherwise injury or damage
may result.
NOTE: The procedures in this section of the manual refer to NON-RECLINER seat frames only,
EXCEPT Seat Angle Adjustment. For recliner seat frames, refer to SECTION 14 of this manual.
SEAT FRAME
PREPARATION FOR REMOVING/INSTALLING SEAT
FRAME (STANDARD FRAME, ASBA, AND VAN SEAT)
(FIGURE 1)
NOTE: When installing/replacing components of the wheelchair, refer to the individual procedure
for correct use of LOCTITE 242 and torque specifications or SECTION 3 of this manual.
NOTE: To reinstall these components, reverse the following steps.
1. Remove footrest assemblies. Refer to INSTALLING/REMOVING FOOTRESTS in
SECTION 3 of the Owner’s Manual, part number 1104782 or 1123757.
2. Remove battery boxes. Refer to REMOVING/INSTALLING BATTERY BOXES in
SECTION 9 of this manual.
Part No. 1104849 29 3G Storm Series® Wheelchairs
Page 30
SECTION 6
3. Cut tie wraps and disconnect joystick from controller.
4. Turn the lever on the adjustment lock
to release the adjustment lock from
the joystick mounting tube.
5. Remove the joystick from the
wheelchair.
6. Perform one (1) of the following:
A. STANDARD OR
SEAT FRAME
B. VAN SEAT - Remove the mount-
ASBA - Remove the flip-back
armrests from the wheelchair.
Refer to INSTALLING/REMOVING
FLIP BACK ARMRESTS in
SECTION 4 of the Owner’s
Manual, part number 1104782 or
1123757.
ing screw that secures the armrest
to the van seat frame. Repeat for
opposite side.
Adjustment Lock
Lever for Joystick
Battery
Boxes
(STEP 2)
SEAT FRAME
Back Upholstery
(STEP 10)
(STEP 4)
Flip Back Armrests
(STEP 6A)
Footrest
Location
(STEP 1)
Joystick
(STEPS
3,5)
7. For standard and ASBA, remove the
seat pan (including seat positioning
straps). Refer to REMOVING/INSTALLING SEAT PAN in this section
of the manual.
8. Disconnect battery and left/right motor
connectors from the controller. Refer
to REMOVING/INSTALLING WIRING
HARNESS in SECTION 10 of this
manual.
9. Remove tie-wraps that secures the
wiring harness to the seat frame and
the charger cable from its mounting
bracket. Refer to REMOVING/
INSTALLING WIRING HARNESS in
SECTION 10 of this manual.
10. For standard and ASBA, remove the
back upholstery (including back canes
and spreader bar, if applicable). Refer
to REPLACING BACK UPHOLSTERY
in SECTION 5 of this manual.
Seat Pan
(Step 7)
Seat Positioning
Strap (STEP 7)
Height
Adjustment
Holes
Van Seat
Base
Controller, Left/Right Motor
Connectors (STEPS 8,9)
Socket Screw
FIGURE 1 - PREPARATION FOR
REMOVING/INSTALLING SEAT
FRAME (STANDARD FRAME,
ADJUSTABLE FRAME, AND VAN
SEAT)
3G Storm Series® Wheelchairs 30 Part No. 1104849
Page 31
SEAT FRAME SECTION 6
REPLACING SAME SIZE STANDARD SEAT FRAME
1. Perform the instructions outlined in PREPARATION FOR REMOVING/INSTALLING
SEAT FRAME (STANDARD FRAME, ASBA, AND VAN SEAT) in this section of the
manual.
2. Remove the existing standard seat frame subassembly and install the NEW standard
frame. Refer to REMOVING/INSTALLING STANDARD SEAT FRAME SUBASSEMBLY
in this section of the manual.
3. FOR 12 TO 15-INCH SEAT DEPTHS ONLY: Remove the CJ back brackets
from the existing standard seat frame and install onto the NEW standard seat frame.
Refer to REMOVING/INSTALLING CJ BACK BRACKETS in SECTION 8 of this
manual.
4. Reinstall the components previously
removed in STEP 1. Perform the
instructions outlined in PREPARATION
FOR REMOVING/INSTALLING SEAT
FRAME (STANDARD FRAME,
Mounting Screws
(Torque to
156 in-lbs)
Mounting Screws
(Torque to
156 in-lbs)
ADJUSTABLE FRAME, AND VAN
SEAT) in this section of the manual.
REMOVING/INSTALLING
STANDARD SEAT FRAME
SUBASSEMBLY (FIGURE 2)
Spacer
(16-inch
Wide Only)
Seat
Mounting
Plate
REMOVING
1. Remove the four (4) mounting screws,
locknuts and spacers, if applicable, that
secure the standard seat frame subassembly
to the seat mounting plates.
2. Remove the existing standard seat frame.
INSTALLING
Standard
Seat
Assembly
Spacer
(16-inch
Wide Only)
SEAT FRAME
1. Position NEW standard seat frame
subassembly on seat mount plates.
2. Secure NEW standard seat frame
subassembly onto seat mounting plates
with the existing four (4) mounting
screws, locknuts and spacers, if
applicable. Torque to 156 in-lbs.
Locknuts
Base Frame
FIGURE 2 - REMOVING/
INSTALLING STANDARD SEAT
FRAME SUBASSEMBLY
Part No. 1104849 31 3G Storm Series® Wheelchairs
Page 32
SECTION 6 SEAT FRAME
CHANGING SEAT DEPTH
STANDARD SEAT FRAME
NOTE: Review the chart below. This will determine the components needed to obtain the
desired seat depth.
1. Find current seat depth in left
hand column in the chart.
2. Follow that row to right under
seat frame components.
SEAT FRAME
3. Verify and note the
components of the current seat
depth.
4. Repeat STEPS 1-3 for your
desired seat depth.
5. Compare existing components
of the current seat depth and
the required components for
the desired seat depth.
6. Perform one (1) of the following:
COMPONENT IDENTIFICATION TABLE
FOR STANDARD SEAT FRAME
SEAT FRAME COMPONENTS
CJ BACK SEAT
SEAT BRACKETS SEAT FRAME
DEPTH REQUIRED PAN DEPTH
12-inches
to YES 17-inch 16-inch deep
15-inches
16-inches NO 16-inch 16-inch deep
17-inches NO 17-inch 16-inch deep
18-inches NO 18-inch 18-inch deep
19-inches NO 19-inch 18-inch deep
20-inches NO 20-inch 20-inch deep
21-inches NO 21-inch 20-inch deep
22-inches NO 22-inch 22-inch deep
A. If the current seat depth and
the desired seat depth is within the 12 to 15-inch seat depth range, this change
can be accomplished by repositioning the back canes on the CJ back brackets.
Refer to CHANGING SEAT DEPTH BETWEEN 12 AND15-INCHES in this
section of the manual.
B. If the desired change only requires a NEW seat pan, refer to REMOVING/
INSTALLING SEAT PAN in this section of the manual.
C. For all other seat depth changes, perform the following:
PREPARATION FOR REMOVING/INSTALLING SEAT FRAME (STANDARD
FRAME, ASBA, AND VAN SEAT) in this section of the manual.
Perform one (1), two (2), or all three (3) of the procedures listed below depending
on the components required for the desired seat depth determined from STEPS 1-5:
REMOVING/INSTALLING CJ BACK BRACKETS in SECTION 8 of this
manual.
REMOVING/INSTALLING STANDARD SEAT SUBASSEMBLY in this
section of the manual.
REMOVING/INSTALLING SEAT PAN in this section of the manual.
After completing the procedure(s) listed above, perform the steps outlined in
PREPARATION FOR REMOVING/INSTALLING SEAT FRAME (STANDARD
FRAME, ADJUSTABLE FRAME, AND VAN SEAT) to complete the desired seat
depth change.
3G Storm Series® Wheelchairs 32 Part No. 1104849
Page 33
SEAT FRAME SECTION 6
ASBA (FIGURE 3)
NOTE: Review the chart below. This will determine the components needed to obtain your
desired seat depth.
1. Find current seat depth in left
hand column in the chart.
2. Follow that row to right under
seat frame components.
3. Verify and note the components
of the current seat depth.
4. Repeat STEPS 1-3 for the
desired seat depth.
5. Compare existing components
of the current seat depth and
the required components for
the desired seat depth.
To adjust the depth of the seat on
the wheelchair, use the following
guidelines:
If the current seat depth is and the
desired seat depth are within the 12
to 15-inch seat depth range, this
change can be accomplished by
repositioning the back canes on the
CJ back brackets. Refer to CHANGING SEAT DEPTH BETWEEN 12 AND15-INCHES in
this section of the manual.
COMPONENT IDENTIFICATION TABLE
FOR STANDARD SEAT FRAME
SEAT FRAME COMPONENTS
CJ BACK
SEAT BRACKETS SEAT SIDE CENTER
DEPTH REQUIRED PAN FRAME FRAME
12-inches
to YES 17-inch Short Short
15-inches
16-inches NO 16-inch Short Short
17-inches NO 17-inch Short Short
18-inches NO 18-inch Medium Short
19-inches NO 19-inch Medium Short
20-inches NO 20-inch Long Long
21-inches NO 21-inch Long Long
22-inches NO 22-inch X-Long Long
NOTE: Note the four (4) different lengths of side frames
short, medium, long, and X-long, as well as the two different
center frames, short and long. These components are
interchanged to obtain the various different seat depths.
SEAT FRAME
If the desired change only requires a new seat pan, refer to REMOVING/INSTALLING
SEAT PAN in this section of the manual.
If the desired change requires the removal/installation of CJ back brackets, refer to
REMOVING/INSTALLING CJ BACK BRACKETS in SECTION 8 of this manual.
If the desired change requires a new side frame, and/or new center frame, perform the
following steps:
A. Perform the instructions outlined in SEAT FRAME REMOVING/INSTALLING
PREPARATION FOR STANDARD FRAME, ASBA, AND VAN SEAT in this
section of the manual.
NOTE: Note the mounting hole position of side frame for proper installation of NEW side frame.
B. Remove the two (2) mounting screws, coved washers, spacers, and locknuts that
secure the side frame to the center frame.
C. Remove the side frame from the center frame.
D. Repeat STEPS A and B for opposite side frame.
NOTE: If the desired seat depth requires a new center frame, determined in STEPS 1-5
perform STEPS E - G, otherwise proceed to STEP H.
Part No. 1104849 33 3G Storm Series® Wheelchairs
Page 34
E. Remove the four (4) mounting screws that secure the EXISTING center frame to
F. Remove existing center frame from seat mount plates.
G. Secure NEW center frame to support brackets with the existing four (4) mounting
H. Secure NEW side frame to the center frame at the position noted previously.
NOTE: If seat width adjustment is also desired, refer to CHANGING SEAT WIDTH in this
section of the manual for mounting hole locations and allowable seat width/seat depth
combinations.
SEAT FRAME
support brackets.
screws and locknuts. Torque to 156 in-lbs.
Torque to 75 in-lbs.
Mounting Screws
(Torque to
75 in-lbs)
SEAT FRAMESECTION 6
Mounting Screws
(Torque to
156 in-lbs)
Side
Frame
Coved
Washers
Side Frame
Support
Brackets
Spacers
Locknuts
Center
Frame
FIGURE 3- CHANGING SEAT DEPTH - ASBA
3G Storm Series® Wheelchairs 34 Part No. 1104849
Page 35
SECTION 6SEAT FRAME
CHANGING SEAT DEPTH BETWEEN 12 AND 15-INCHES
(FIGURE 4)
NOTE: There are two (2) sizes of CJ back brackets. Refer to the following chart to determine if
the seat depth required is obtainable by repositioning the back canes only, or if the CJ back
brackets must be replaced.
CJ BACK BRACKET (SEAT DEPTH) RANGES
12 and 13-inches OR 14 and 15-inches
If seat depth required is within seat depth range of the original CJ back brackets, only
the back canes need to be repositioned. Refer to the following procedure.
If the seat depth required is NOT within the seat depth range of the original CJ back
brackets, the CJ back brackets must be replaced before repositioning the back canes.
Refer to REMOVING/INSTALLING CJ BACK BRACKETS in SECTION 8 of this manual.
1. Remove the armrests from the wheelchair. Refer to INSTALLING/REMOVING FLIP
BACK ARMRESTS in SECTION 4 of the Owner’s Manual, part number 1104782 or
1123757.
2. Cut the tie wraps that secure the back upholstery to the CJ back brackets.
3. Pull the bottom of the back upholstery away from the rear of the seat pan.
SEAT FRAME
4. Remove mounting screw, washer and coved washer from the top mounting hole of
the CJ back bracket and back cane.
NOTE: Before removing the back canes from the CJ back brackets, note the BACK ANGLE for
reinstallation.
NOTE: To avoid losing the insert in each back cane, line up the holes in the insert with the holes
in the back cane and start one of the screws through the cane from the inside of the wheelchair
to hold the insert in place.
5. Remove the mounting screw, washer and coved washer from the bottom mounting
hole of the CJ back bracket and the back cane.
6. Reposition the back cane to the desired
Back Cane
seat depth and angle. If changing the back
angle as well, refer to BACK ANGLE
ADJUSTMENT in SECTION 8 of this
manual.
7. Secure bottom of the back
upholstery to the seat pan.
CJ Back
Bracket
Coved
Washers
Threaded
Insert
8. Secure the bottom of the back
upholstery to the CJ back brackets
with new tie wraps.
9. Use Loctite 242 and torque the
mounting screws to 75 in-lbs.
Washers
Seat
Frame
10. Repeat the STEPS 1-9 for the opposite
Mounting Screws
back cane.
11. Reinstall the armrests onto the
wheelchair. Refer to INSTALLING/
REMOVING FLIP BACK ARMRESTS in
FIGURE 4 - ADJUSTING SEAT
DEPTH - CHANGING SEAT DEPTH
BETWEEN 12 AND 15-INCHES
SECTION 4 of the Owner’s Manual,
part number 1104782 or 1123757.
Part No. 1104849 35 3G Storm Series® Wheelchairs
Page 36
SEAT FRAMESECTION 6
CHANGING SEAT WIDTH (STANDARD AND ASBA)
STANDARD SEAT FRAME
NOTE: If changing seat width below 16-inches wide, you must convert to an ASBA. Refer to
CONVERTING FROM STANDARD TO ASBA OR VICE VERSA in this section of the manual. For all
changes above 16-inches wide, perform the outlined steps.
1. Perform the instructions outlined in
SEAT FRAME (STANDARD FRAME, ASBA, AND VAN SEAT) in this section of the
manual.
2. Remove the existing standard seat frame subassembly and install the NEW standard frame.
SEAT FRAME
Refer to REMOVING/INSTALLING STANDARD SEAT FRAME SUBASSEMBLY in this
section of the manual.
3. FOR 12 TO 15-INCH SEAT DEPTHS ONLY: Remove the CJ back brackets from
the existing standard seat frame and install onto the NEW standard seat frame. Refer to
REMOVING/INSTALLING CJ BACK BRACKETS in SECTION 8 of this manual.
4. Reinstall the components previously removed in STEP 1. Perform the instructions outlined
in PREPARATION FOR REMOVING/INSTALLING SEAT FRAME (STANDARD FRAME,
ADJUSTABLE FRAME, AND VAN SEAT) in this section of the manual.
ASBA (FIGURE 5)
NOTE: If changing seat width above 16-inches wide, you must convert to a standard seat frame.
Refer to CONVERTING FROM STANDARD TO ASBA OR VICE VERSA in this section of the manual.
For all changes below 16-inches wide, perform the outlined steps.
1. Perform the instructions outlined in PREPARATION FOR REMOVING/INSTALLING
SEAT FRAME (STANDARD FRAME, ASBA, AND VAN SEAT) in this section of the
manual.
PREPARATION FOR REMOVING/INSTALLING
2. Review the following chart for the allowable seat width and seat depth combinations for
the ASBA.
NOTE: The seat widths and seat depths enclosed in the outlined box will require the use of CJ back
brackets and a 17-inch deep seat pan.
3. Remove the two (2) mounting screws,
ALLOWABLE SEAT WIDTH AND
DEPTH COMBINATIONS FOR ASBA
coved washers, spacers, and locknuts
that secure the side frame to the center
frame.
4. Adjust side frame to desired width
determined from STEP 2. See DETAIL
“A” for proper mounting hole position.
5. Secure side frame to center frame with
existing mounting screws, coved
washers, spacers, and locknuts. Torque
mounting screws to 75 in-lbs.
3G Storm Series® Wheelchairs 36 Part No. 1104849
12 13 14 15 16
12 ✓✓✓✓✓
13 ✓✓✓✓✓
14 ✓✓✓✓✓
15 ✓✓✓✓✓
16 ✓✓✓✓✓
17 N/A N/A ✓✓✓
18 N/A N/A ✓✓✓
SEAT DEPTH
19 N/A N/A ✓✓✓
20 N/A N/A ✓✓✓
21 N/A N/A ✓✓✓
22 N/A N/A ✓✓✓
SEAT WIDTH
Page 37
SECTION 6SEAT FRAME
WARNING
Both side frames MUST be adjusted to the same mounting hole position to
maintain proper weight balance of user and seat frame. If weight is not balanced,
injury to the assistant and/or user and damage to the wheelchair may result.
6. Repeat STEPS 3-5 for opposite side frame.
7. Perform one (1) of the following:
A. For adjusting the seat width only, perform the instructions outlined in
PREPARATION FOR REMOVING/INSTALLING SEAT FRAME (STANDARD
FRAME, ASBA, AND VAN SEAT) in this section of the manual.
NOTE: When performing the steps outlined in
PREPARATION FOR REMOVING/INSTALLING SEAT
FRAME (STANDARD FRAME, ASBA, AND VAN SEAT) the seat pan, seat cushion, back upholstery
and spreader bar (if applicable), will need to be replaced. Spreader bars are only required on seat
depths greater than 19-inches.
B. For all other changes regarding seat frame changes, refer back to the starting
procedure to complete the desired change.
DETAIL “A”
12-inches
13-inches
14-inches
15-inches
16-inches
SEAT FRAME
STEPS 3-6
Mounting
Screws
Side
Frame
Coved
Washers
Center
Frame
Side Frame
Spacers
Locknut
FIGURE 5 - CHANGING SEAT WIDTH - ASBA
Part No. 1104849 37 3G Storm Series® Wheelchairs
Page 38
INSTALLING/REMOVING ASBA SUBASSEMBLY AND/OR
COMPONENT REPLACEMENT (FIGURE 6)
CONVERTING FROM ASBA TO STANDARD SEAT FRAME OR
VAN SEAT
NOTE: This section must be performed in conjunction with a starting procedure.
1. Remove the four (4) mounting screws that secure the two (2) support brackets of
the ASBA subassembly to the seat mounting plates.
2. To complete conversion, refer back to the starting procedure to complete the
SEAT FRAME
desired change.
CONVERTING FROM STANDARD SEAT FRAME OR VAN SEAT
TO ASBA
NOTE: This section must be performed in conjunction with a starting procedure.
NOTE: When converting the seat frame, you will need a seat pan, seat cushion, back upholstery
and spreader bar (if applicable). Spreader bars are only required on seat depths of greater than
19-inches.
SEAT FRAMESECTION 6
1. Secure both support brackets to the seat mounting plates with four (4) mounting
screws and locknuts. Torque mounting screws to 156 in-lbs.
2. Secure the center frame to the support brackets with four (4) mounting screws,
locknuts, and spacers. Torque to 156 in-lbs.
3. Insert the side frame into the center frame and secure with mounting screw, coved
spacer, spacer, and locknut. Torque to 75 in-lbs. Repeat for opposite side frame.
COMPONENT REPLACEMENT
1. Perform the instructions outlined in PREPARATION FOR REMOVING/INSTALLING
SEAT FRAME (STANDARD FRAME, ADJUSTABLE FRAME, AND VAN SEAT) in this
section of the manual.
NOTE: Note the mounting hole position of the current side frame(s) for proper installation of the
NEW side frame(s).
2. Remove the two (2) mounting screws, coved spacers, spacers, and locknuts that
secure the side frame to the center frame.
3. Perform one (1) of the following:
A. If center frame needs replaced, repeat STEP 2 for opposite side frame and
proceed to STEP 4.
B. If opposite side frame needs replaced, repeat STEP 2, then proceed to STEP 6.
Otherwise proceed to STEP 6.
3G Storm Series® Wheelchairs 38 Part No. 1104849
Page 39
SECTION 6SEAT FRAME
4. Remove the four (4) mounting screws and locknuts that secure the center frame to
the support brackets.
5. Secure NEW center frame to support brackets with existing four (4) mounting
screws and locknuts. Torque to 156 in-lbs.
WARNING
Both side frames MUST be adjusted to the same mounting hole position to
maintain proper weight balance of user and seat frame. If weight is not
balanced, injury to the assistant and/or user and damage to the wheelchair
may result.
6. Install new/existing side frame(s) into new/existing center frame at the mounting
position previously noted. Torque to 75 in-lbs.
7. Perform the instructions outlined in PREPARATION FOR REMOVING/INSTALLING
SEAT FRAME (STANDARD FRAME, ASBA, AND VAN SEAT) in this section of the
manual.
Mounting Screws
Mounting Screws
(Torque to
156 in-lbs)
Mounting Screws
(Torque to
75 in-lbs)
Coved Washer
(Torque to
156 in-lbs)
Side Frame
Spacer
SEAT FRAME
Center Frame
Locknuts
Support
Side Frame
Mounting Screws
(Torque to
156 in-lbs)
Mounting Plate
Bracket
Locknuts
Locknuts
Mounting Screws
(Torque to
156 in-lbs)
Support
Bracket
Base
Frame
FIGURE 6 - INSTALLING/REMOVING ASBA SUBASSEMBLY AND/OR
COMPONENT REPLACEMENT
Part No. 1104849 39 3G Storm Series® Wheelchairs
Page 40
INSTALLING/REMOVING
VAN SEAT ASSEMBLY
(FIGURE 7)
INSTALLING VAN SEAT
SEAT FRAMESECTION 6
Van Seat
1. Position the van seat on the seat
mounting plates at the position shown
in FIGURE 7.
2. Line up mounting holes in the van seat
frame and the mounting holes in the
SEAT FRAME
seat mounting plates.
3. Secure the van seat to the seat mount-
ing plates with four (4) mounting
screws, and locknuts. Torque to
156 in-lbs.
REMOVING VAN SEAT
1. Remove the four (4) mounting screws
and locknuts that secure the van seat
to the seat mounting plates.
2. Remove van seat from seat mounting plates.
REPLACING VAN SEAT AND/OR VAN SEAT FRAME
(FIGURE 8)
Mounting Screws
(Torque to
156 in-lbs)
Seat
Mounting
Plate
Locknuts
FIGURE 7 - REMOVING/
INSTALLING VAN SEAT
Seat
Mounting
Plate
Base
Frame
ASSEMBLY
1. Perform the instructions outlined in
PREPARATION FOR REMOVING/
INSTALLING SEAT FRAME (STANDARD
FRAME, ADJUSTABLE FRAME, AND
VAN SEAT) in this section of the manual.
2. Remove the van seat assembly from
the wheelchair. Refer to
INSTALLING/REMOVING VAN
SEAT ASSEMBLY in this section
of the manual.
3. Remove the four (4) mounting
screws, two (2) washers, and
two (2) spacers that secure the
van seat to the seat frame.
Van Seat
Van Seat
Frame
Washer
Mounting Screw
(Torque to
75 in-lbs)
Spacer
FIGURE 8 - REPLACING VAN SEAT
AND/OR VAN SEAT FRAME
3G Storm Series® Wheelchairs 40 Part No. 1104849
Page 41
SECTION 6SEAT FRAME
4. Replace the van seat or the seat frame.
5. Secure new/existing van seat to the new/existing van seat frame with existing four (4)
mounting screws and spacers. Torque to 75 in-lbs.
6. Install new van seat assembly onto the wheelchair. Refer to INSTALLING/
REMOVING VAN SEAT ASSEMBLY in this section of the manual.
CONVERTING FROM STANDARD SEAT FRAME TO
ASBA OR VICE VERSA
1. Perform the instructions outlined in PREPARATION FOR REMOVING/INSTALLING
SEAT FRAME (STANDARD FRAME, ADJUSTABLE FRAME, AND VAN SEAT) in this
section of the manual.
2. Perform one (1) of the following:
SEAT FRAME
A. Remove the existing standard seat frame subassembly. Refer to
INSTALLING STANDARD SEAT FRAME SUBASSEMBLY in this section of the
manual.
B. Remove the ASBA subassembly. Refer to REMOVING/INSTALLING ASBA
SUBASSEMBLY AND/OR COMPONENT REPLACEMENT in this section of the
manual.
3. Perform one (1) of the following:
A. Install the standard frame subassembly. Refer to INSTALLING/REMOVING
STANDARD SEAT FRAME SUBASSEMBLY in this section of the manual.
B. Install the ASBA subassembly. Refer to INSTALLING/REMOVING ASBA
SUBASSEMBLY AND/OR COMPONENT REPLACEMENT in this section of the
manual.
4. ASBA ONLY: Adjust side frame to desired seat width.
Refer to CHANGING SEAT WIDTH in this section of the manual for mounting hole
locations and allowable seat width/seat depth combinations.
5. STANDARD AND ASBA WITH 12 TO 15-INCH SEAT DEPTHS ONLY:
Remove the CJ back brackets from the existing standard seat frame and install onto the
NEW standard seat frame. Refer to REMOVING/INSTALLING CJ BACK BRACKETS
in SECTION 8 of this manual.
REMOVING/
6. Perform the instructions outlined in PREPARATION FOR REMOVING/INSTALLING
SEAT FRAME (STANDARD FRAME, ADJUSTABLE FRAME, AND VAN SEAT) in this
section of the manual.
Part No. 1104849 41 3G Storm Series® Wheelchairs
Page 42
SECTION 6 SEAT FRAME
CONVERTING FROM ASBA TO VAN SEAT OR VICE
VERSA
1. Perform the instructions outlined in PREPARATION FOR REMOVING/INSTALLING
SEAT FRAME (STANDARD FRAME, ADJUSTABLE FRAME, AND VAN SEAT) in this
section of the manual.
2. Perform one (1) of the following:
A. Remove the ASBA subassembly. Refer to
B. Remove the van seat Assembly. Refer to
SEAT FRAME
3. Perform one (1) of the following sections:
ASBAASBA
ASBA
ASBAASBA
A. Install the ASBA subassembly. Refer to INSTALLING/REMOVING ASBA SUBAS-
B. Adjust side frames to desired seat width. Refer to CHANGING SEAT WIDTH in
C. 12 TO 15-INCH SEAT DEPTHS ONLY: Install the CJ back brackets, seat
D. Perform the instructions outlined in PREPARATION FOR REMOVING/INSTALLING
REMOVING/INSTALLING STANDARD
SEAT FRAME SUBASSEMBLY in this section of the manual.
INSTALLING/REMOVING VAN SEAT
ASSEMBLY in this section of the manual.
SEMBLY AND/OR COMPONENT
REPLACEMENT in this section of the manual.
this section of the manual for mounting hole locations and allowable seat width/
seat depth combinations.
positioning strap, and quick release pin from the onto the ASBA. Refer to REMOVING/INSTALLING CJ BACK BRACKETS in SECTION 8 of this manual.
SEAT FRAME (STANDARD FRAME, ADJUSTABLE FRAME, AND VAN SEAT) in this
section of the manual.
Van Seat
A. Install the van seat. Refer to INSTALLING/REMOVING VAN SEAT ASSEMBLY in
this section of the manual.
B. Adjust the van seat to the desired position. Refer to ADJUSTING VAN SEAT in
SECTION 6 of the Owner’s Manual, part number 1104782 or 1123757.
C. Perform the instructions outlined in PREPARATION FOR REMOVING/
INSTALLING SEAT FRAME (STANDARD FRAME, ASBA, AND VAN SEAT) in
this section of the manual.
3G Storm Series® Wheelchairs 42 Part No. 1104849
Page 43
SEAT FRAME SECTION 6
CONVERTING FROM STANDARD SEAT FRAME TO VAN
SEAT OR VICE VERSA
1. Perform the instructions outlined in PREPARATION FOR REMOVING/INSTALLING
SEAT FRAME (STANDARD FRAME, ADJUSTABLE FRAME, AND VAN SEAT) in this
section of the manual.
2. Perform one (1) of the following:
SEAT FRAME
A. Remove the standard seat frame subassembly. Refer to
STANDARD SEAT FRAME SUBASSEMBLY in this section of the manual.
B. Remove the van seat Assembly. Refer to INSTALLING/REMOVING VAN SEAT
ASSEMBLY in this section of the manual.
3. Perform one (1) of the following:
A. Install the van seat. Refer to
this section of the manual.
B. Install the standard seat frame. Refer to REMOVING/INSTALLING STANDARD
SEAT FRAME SUBASSEMBLY in this section of the manual.
4. STANDARD FRAMES ONLY ON 12 TO 15-INCH SEAT DEPTHS ONLY:
Install the CJ back brackets from the onto the ASBA. Refer to REMOVING/INSTALLING
CJ BACK BRACKETS in SECTION 8 of this manual.
5. Perform the instructions outlined in PREPARATION FOR REMOVING/INSTALLING
SEAT FRAME (STANDARD FRAME, ASBA, AND VAN SEAT) in this section of the
manual.
6. Adjust the van seat to the desired position. Refer to ADJUSTING VAN SEAT in
SECTION 6 of the Owner’s Manual, part number 1104782 or 1123757.
INSTALLING/REMOVING VAN SEAT ASSEMBLY in
REMOVING/INSTALLING
REMOVING/INSTALLING SEAT PAN (FIGURE 9)
REMOVING
1. Remove the seat cushion from the seat pan.
2. Remove the flip-back armrests from the wheelchair. Refer to INSTALLING/REMOVING
FLIP BACK ARMRESTS in SECTION 4 of the Owner’s Manual, part number 1104782 or
1123757.
3. Remove the six (6) mounting screws, locknuts, and spacers that secure the seat pan,
seat positioning strap, and quick release pin to the seat frame.
NOTE: When removing seat pan, note tab position of quick release pin to the seat positioning strap.
Part No. 1104849 43 3G Storm Series® Wheelchairs
Page 44
SECTION 6 SEAT FRAME
INSTALLING
1. Position the NEW seat pan on the seat frame, aligning the mounting holes of the
seat pan and the mounting holes of the seat frame.
2. Position the seat positioning strap and
quick release pin tab onto the seat
frame and secure with mounting screw
and locknut. See FIGURE 9 for proper
orientation. Repeat for other seat
positioning strap.
Mounting
Screws
SEAT FRAME
NOTE: Check seat positioning strap for proper
length. The width range for the four (4) seat
positioning straps are: 12 to 16-inches wide
(Junior), 16 to 19-inches wide, 20 to 22-inches
wide, and 23 to 24-inches wide.
3. Reinstall the remaining mounting
screws, locknuts, and spacers. Torque
all mounting screws to 75 in-lbs.
4. Remove the protective strips from new
seat pan and reinstall the seat cushion
onto the seat pan.
5. Perform one (1) of the following:
A. When changing the seat width or
B. Reinstall the flip-back armrests
Seat
Positioning
Strap
Seat Frame
Tab
Locknut
Quick Release Pin
NOTE: Illustration shows standard frame only
for clarity. The seat pan removes/installs onto
depth, refer back to that procedure
the ASBA the way.
to complete the desired change.
FIGURE 9 - REMOVING/
INSTALLING SEAT PAN
from the wheelchair. Refer to
INSTALLING/REMOVING FLIP BACK ARMRESTS in SECTION 4 of the
Owner’s Manual, part number 1104782 or 1123757.
Seat
Pan
Spacer
Locknut
3G Storm Series® Wheelchairs 44 Part No. 1104849
Page 45
SEAT FRAME SECTION 6
SEAT ANGLE ADJUSTMENT (FIGURE 10)
NOTE: The angle of the seat is factory set providing the user with a 5o seat dump. This angle
can be changed by adjusting either the front or back of the seat mount plate to obtain any
angle between 0o or 10o seat dump.
NOTE: There are three (3) heights of seat mounting plates; low, medium, and high.
LOW HEIGHT
MEDIUM HEIGHT HIGH HEIGHT
1. To obtain a 0o seat dump (DETAIL “A”):
A. Loosen the two (2) mounting screws that secures the seat mount plate to the
seat support bracket.
B. Loosen the two (2) mounting screws that secures the remaining seat mount plate
to the seat support bracket.
C. Adjust the seat mount plates so that the rear mounting screws are positioned at
the bottom of the rear slots.
D. Adjust the seat mount plates so
that the front mounting screws are
Rear of Seat Frame
positioned at the top of the front
slots.
E. Securely tighten all four (4) mounting
Mounting
Screw
DETAIL “A”
screws. Torque to 156 in-lbs.
SEAT FRAME
2. To obtain a 10o seat dump (DETAIL “A”):
A. Loosen the two (2) mounting
screws that secure the front of the
seat frame to the seat mount plate.
B. Position the mounting screws at
the bottom of the front slot.
C. Securely tighten both mounting
screws. Torque to 156 in-lbs.
Medium Height
Seat Mount Plate
Mounting Screw
FIGURE 10 - SEAT ANGLE
ADJUSTMENT
Front of
Seat Frame
Part No. 1104849 45 3G Storm Series® Wheelchairs
Page 46
SECTION 7 BASE FRAME
This Section Includes the Following:
Replacing Seat Mounting Plates
Replacing Seat Support Brackets
Replacing Seat Support Bracket T-Nuts
Replacing Battery Charger Bracket and T-Nut
Removing/Installing Seat Stop Screws
After ANY adjustments, repair or service and BEFORE use, make sure that
BASE FRAME
all attaching hardware is tightened securely - otherwise injury or damage
may result.
REPLACING SEAT MOUNTING PLATES (FIGURE 1)
NOTE: When replacing components of the wheelchair, refer to the individual procedure for
correct use of LOCTITE 242 and torque specifications or SECTION 3 of this Manual.
WARNING
1. Perform the instructions outlined in
PREPARATION FOR REMOVING/INSTALLING
SEAT FRAME (STANDARD FRAME, ADJUSTABLE FRAME, AND VAN SEAT) in
SECTION 6 of this manual.
2. Perform one (1) of the following:
A. Remove standard seat frame subassembly. Refer to REMOVING/INSTALLING
STANDARD SEAT FRAME SUBASSEMBLY in SECTION 6 of this manual.
B. Remove ASBA subassembly. Refer to INSTALLING/REMOVING ASBA ASSEMBLY
AND OR COMPONENT REPLACEMENT in SECTION 6 of this manual.
C. Remove van seat. Refer to INSTALLING/REMOVING VAN SEAT ASSEMBLY in
SECTION 6 of this manual.
NOTE: Before removing seat mounting plates, note the position of the washers.
3. Remove the two (2) mounting screws,
washers and bolt strap bracket that
secure the seat mounting plate to the
seat support bracket.
4. Secure NEW seat mounting plate with
existing two (2) mounting screws,
washers, and bolt straps to seat
support bracket using Loctite 242 and
torque to 156 in-lbs.
Bolt Strap
Seat
Mounting
Plate
Seat
Support
Bracket
Washer
Washer
Mounting
Screws
Mounting
Screws
FIGURE 1 - REPLACING SEAT
MOUNTING PLATES
3G Storm Series® Wheelchairs 46 Part No. 1104849
Page 47
BASE FRAME SECTION 7
5. Repeat STEPS 1-2 for opposite side, if necessary.
NOTE: For illustrations of the three (3) different seat mounting plates, refer to
SEAT ANGLE
ADJUSTMENT in SECTION 6 of this manual.
6. Adjust seat mounting plates to desired angle. Refer to SEAT ANGLE ADJUSTMENT
in SECTION 6 of this manual.
7. Reverse STEP 2.
8. Perform the instructions outlined in
PREPARATION FOR REMOVING/INSTALLING
SEAT FRAME (STANDARD FRAME, ADJUSTABLE FRAME, AND VAN SEAT) in
SECTION 6 of this manual.
REPLACING SEAT SUPPORT BRACKETS (FIGURE 2)
1. Perform the instructions outlined in PREPARATION FOR REMOVING/INSTALLING
SEAT FRAME (STANDARD FRAME, ADJUSTABLE FRAME, AND VAN SEAT) in
SECTION 6 of this manual.
2. Perform one (1) of the following:
A. Remove standard seat frame subassembly. Refer to REMOVING/INSTALLING
STANDARD SEAT FRAME SUBASSEMBLY in SECTION 6 of this manual.
B. Remove ASBA subassembly. Refer to INSTALLING/REMOVING ASBA ASSEM-
BLY AND OR COMPONENT
REPLACEMENT in SECTION 6 of this manual.
BASE FRAME
C. Remove van seat. Refer to INSTALLING/REMOVING VAN SEAT ASSEMBLY in
SECTION 6 of this manual.
3. Remove seat mount plates. Refer to REPLACING SEAT MOUNTING PLATES in this
section of the manual.
NOTE: Note the position of the seat support brackets before removing to ensure proper reinstallation.
WARNING
Do not adjust the position of the seat support bracket in this procedure.
If an adjustment is desired, refer to ADJUSTING WEIGHT DISTRIBUTION
in SECTION 15 of this manual.
4. Remove the two (2) mounting screws and washers that secure the seat support
bracket to the base frame.
WARNING
When installing seat support bracket, ensure the mounting screws are
threaded into the T-Nuts located inside the channel of the base frame.
5. Secure the NEW seat support bracket to base frame with the existing two (2)
mounting screws and washers. Torque to 156 in-lbs.
6. Reinstall seat mount plates. Refer to REPLACING SEAT MOUNTING PLATES in
this section of the manual.
Part No. 1104849 47 3G Storm Series® Wheelchairs
Page 48
BASE FRAMESECTION 7
7. Adjust seat mount plates to desired
angle. Refer to SEAT ANGLE
ADJUSTMENT in SECTION 6 of
this manual.
8. Reverse STEP 2.
9. Perform the instructions
outlined in PREPARATION
FOR REMOVING/INSTALLING
SEAT FRAME (STANDARD
FRAME, ASBA, AND VAN
BASE FRAME
SEAT) in SECTION 6 of this
manual.
REPLACING SEAT SUPPORT BRACKET T-NUTS (FIGURE 3)
1. Perform the instructions outlined in PREPARATION FOR REMOVING/
INSTALLING SEAT FRAME (STANDARD FRAME, ASBA, AND VAN SEAT) in
SECTION 6 of this manual.
2. Perform one (1) of the following:
A. Remove standard seat frame subassembly. Refer to REMOVING/INSTALLING
Mounting Screws
Washer
Seat Support
Bracket
Base
Frame
FIGURE 2 - REPLACING SEAT SUPPORT
BRACKETS
STANDARD SEAT FRAME SUBASSEMBLY in SECTION 6 of this manual.
T-Nut
B. Remove ASBA subassembly. Refer to INSTALLING/REMOVING ASBA ASSEM-
BLY AND OR COMPONENT
REPLACEMENT in SECTION 6 of this manual.
C. Remove van seat. Refer to
INSTALLING/REMOVING VAN
SEAT ASSEMBLY in SECTION 6
Seat
Support Bracket
of this manual.
3. Remove the seat mount plates.
Refer to REPLACING SEAT
MOUNTING PLATES in this
section of the manual.
Base
Frame
FIGURE 3 - REPLACING SEAT
SUPPORT BRACKET T-NUTS
Channel
Cover
End Cap
T-Nut
3G Storm Series® Wheelchairs 48 Part No. 1104849
Page 49
BASE FRAME SECTION 7
NOTE: Before removing seat mounting plates, note the position of the washers.
4. Remove the seat support brackets. Refer to
in this section of the manual.
5. Remove the seat stop screw that is closest to the end cap. Refer to
INSTALLING SEAT STOP SCREWS in this section of the manual.
6. Remove the end cap and channel cover.
7. Slide existing T-Nut(s) out of channel.
8. Insert NEW T-Nut(s) into channel in correct orientation.
9. Replace channel cover and end cap.
WARNING
The seat stop screws must be in place before operation of your power wheelchair.
Ensure the T-Nut(s) are positioned between both seat stop screws.
10. Use Loctite 242 and reinstall seat stop screw into base frame.
11. Reinstall the seat seat support brackets. Refer to REPLACING SEAT SUPPORT
BRACKETS in this section of the manual.
12. Reinstall the seat mount plates. Refer to REPLACING SEAT MOUNTING PLATES in
this section of the manual.
13. Adjust seat mounting plates to desired angle. Refer to SEAT ANGLE ADJUSTMENT
in SECTION 6 of this manual.
REPLACING SEAT SUPPORT BRACKETS
REMOVING/
BASE FRAME
14. Reverse STEP 2.
15. Perform the instructions outlined in PREPARATION FOR REMOVING/INSTALLING
SEAT FRAME (STANDARD FRAME, ASBA, AND VAN SEAT) in SECTION 6 of this
manual.
REPLACING BATTERY CHARGER BRACKET AND
T-NUT (FIGURE 4)
NOTE: For 3G wheelchairs equipped with 2G powered seating systems only.
1. Perform the instructions outlined in PREPARATION FOR REMOVING/INSTALLING
THE SEAT FRAME (STANDARD FRAME, ASBA, AND VAN SEAT) in SECTION 6 of
this manual.
2. Remove one (1) of the following (Refer to SECTION 6):
A. Standard seat frame subassembly.
B. ASBA subassembly.
C. Van seat.
3. Remove the seat support brackets. Refer to REPLACING SEAT SUPPORT BRACKETS
in this section of this manual.
Part No. 1104849 49 3G Storm Series® Wheelchairs
Page 50
BASE FRAMESECTION 7
4. Remove the two (2) mounting screws that secure the battery charger connector to
the mount bracket.
5. Remove battery charger connector from mount bracket.
6. Remove the mounting screw which secures the battery charger mount bracket to
the T-nut located in the channel of the base frame.
7. Replace battery charger mount
bracket and secure to base
frame with existing mounting
screw.
BASE FRAME
NOTE: To replace the Battery Charger
Bracket T-Nut, perform STEPS 3-13 in
REPLACING SEAT SUPPORT BRACKET
T-NUTS in this section of the manual.
8. Secure the battery charger
connector to the mount
bracket with the EXISTING
two (2) mounting screws.
Tighten securely.
9. Reverse STEP 2.
10. Perform the instructions outlined in PREPARATION FOR REMOVING/INSTALLING
SEAT FRAME (STANDARD FRAME, ASBA, AND VAN SEAT) in SECTION 6 of this
manual.
REMOVING/INSTALLING SEAT STOP SCREWS (FIGURE 5)
Mounting Screw
Battery
Charger
Mount
Bracket
Base
Frame
Connector
FIGURE 4 - REPLACING BATTERY
CHARGER BRACKET AND T-NUT
Battery
Charger
T-Nut
NOTE: The front seat stop screw should only be removed if replacing a T-nut for either the seat support
bracket or the battery charger mount bracket. The rear seat stop screw should never be removed.
1. Unthread seat stop screw from base frame.
WARNING
The seat stop screws must be in place before operation of your power
wheelchair. Ensure the seat support bracket is positioned between both
seat stop screws.
2. When reinstalling the front seat stop screw, ensure the seat support bracket is
located in-between both seat stop screws. Use loctite 242 and tighten securely.
Seat Support Bracket
Base
Frame
Rear Seat
Stop Screw
Front Seat Stop Screw
FIGURE 5 - REMOVING/INSTALLING SEAT STOP SCREWS
3G Storm Series® Wheelchairs 50 Part No. 1104849
Page 51
BACK FRAME
This Section Includes the Following:
Removing/Installing CJ Back Brackets
Changing Back Height
Back Angle Adjustment
SECTION 8
WARNING
After ANY adjustments, repair or service and BEFORE use, make sure that all
attaching hardware is tightened securely - otherwise injury or damage may result.
NOTE: The procedures in this section of the manual refer to NON-RECLINER seat frames only.
For recliner seat frames, refer to SECTION 14 of this manual.
REMOVING/INSTALLING CJ BACK BRACKETS (FIGURE 1)
NOTE: The following procedure is for Jr. wheelchairs only.
REMOVING CJ BACK BRACKETS
1. If necessary, perform the instructions outlined in PREPARATION FOR REMOVING/
INSTALLING SEAT FRAME (STANDARD FRAME, ADJUSTABLE FRAME, AND
VAN SEAT) in SECTION 6 of this manual.
BACK FRAME
2. Remove the locknuts and washers that secure the CJ back bracket to the back angle plate.
3. Remove the mounting screw and locknut that secures the quick release pin and CJ
back bracket and seat positioning strap to the seat frame.
4. Remove the existing CJ back bracket.
5. Repeat STEPS 2-4 for the opposite CJ back bracket.
6. For replacement of CJ back brackets, proceed to INSTALLING CJ BACK BRACKETS in this section of the manual.
INSTALLING CJ BACK BRACKETS
1. If necessary, perform the instructions outlined in PREPARATION FOR REMOVING/
INSTALLING SEAT FRAME (STANDARD FRAME, ADJUSTABLE FRAME, AND
VAN SEAT) in SECTION 6 of this manual.
2. Install the threaded studs of the CJ back bracket through the back angle plates as
shown in FIGURE 1.
NOTE: Ensure the CJ back bracket is mounted in the front holes of the back angle plates as
shown in DETAIL “A” of FIGURE 1.
Part No. 1104849 51 3G Storm Series® Wheelchairs
Page 52
SECTION 8
BACK FRAME
Always wear your seat positioning
strap.
3. Position the seat positioning strap and
quick release pin under the CJ back
bracket.
4. Secure the quick release pin, seat
positioning strap, and CJ back bracket
to the seat frame. Torque to 75 in-lbs.
BACK FRAME
5. Install washers and locknuts onto the
threaded studs of the CJ back bracket.
Torque to 75 in-lbs.
6. For replacing CJ back brackets only,
perform the instructions outlined in
PREPARATION FOR REMOVING/
INSTALLING SEAT FRAME
(STANDARD FRAME, ADJUSTABLE
FRAME, AND VAN SEAT) in
SECTION 6 of this manual.
WARNING
Toward Front of
Wheelchair
Back
Angle
Plate
Washers
Mounting
Screw
CJ Bracket
mounts in Front
Holes on Back
Angle Plates.
CJ Back
Bracket
Threaded
Studs
DETAIL “A”
Seat
Positioning
Strap
Quick
Release
Pin
Locknuts
Locknut
Seat
Pan
Seat Frame
FIGURE 1 - REMOVING/
INSTALLING CJ BACK BRACKETS
3G Storm Series® Wheelchairs 52 Part No. 1104849
Page 53
BACK FRAME SECTION 8
CHANGING BACK HEIGHT (FIGURE 2)
NOTE: If changing the back height, new back upholstery may be needed as well. Read the
following to determine if new back upholstery is needed:
Back upholsery height ranges are 16 to 17-inches, 18 to 19-inches, 20-inches,
21 to 22-inches, 23 to 24-inches
●●
●
●●
If back height required is within the range of the original back height, only
new back canes will be needed.
●●
●
●●
If the back height required is NOT within the range of the original back
height, new back upholstery, as well as new back canes will be needed.
NOTE: Existing hardware and inserts will be reused.
1. Remove the armrests from the wheelchair. Refer to INSTALLING/REMOVING FLIP
BACK ARMRESTS in SECTION 4 of the Owner’s Manual, part number 1104782 or
1123757.
NOTE: Note the correct mounting screw mounting positions to ensure the proper back angle for
reinstallation.
2. Remove the two (2) mounting screws and washers that secure the existing back
upholstery to the back canes.
BACK FRAME
3. Remove the four (4) mounting screws, washers, spacers, and locknuts that secure
the existing back canes to the seat frame.
4. Remove the inserts from the existing back canes.
5. Remove the back assembly from the wheelchair.
6. If applicable, loosen, but do not remove the mounting screws and locknuts that
secure the spreader bar to the existing back canes.
7. Remove existing back canes from the back assembly.
8. Slide the inserts into the bottom of the new back canes.
9. Line up the mounting holes of the inserts with the mounting holes in the back canes.
NOTE: To keep the inserts lined up for reinstallation onto the wheelchair, start one (1) of the mounting
screws through the back cane from inside of the wheelchair to hold the insert in place.
10. Slide new back canes through the existing/new back upholstery and spreader bar.
11. If applicable, loosely tighten the mounting screws that secure the spreader bar to the
new back canes.
12. Line up mounting holes in the back canes with the mounting holes in the seat frame.
NOTE: If needing a reference for proper mounting holes for the back angle required, or if changing
the original back angle, refer to BACK ANGLE ADJUSTMENT in this section of the manual.
WARNING
The back canes MUST be fastened securely to the seat frame BEFORE
using the wheelchair. Torque to 75 in-lbs.
13. Secure the two (2) NEW back canes to the seat frame with the existing four (4) mounting
screws, washers, spacers, and locknuts. Use Loctite 242 and torque to 75 in-lbs.
Part No. 1104849 53 3G Storm Series® Wheelchairs
Page 54
SECTION 8 BACK FRAME
14. Secure the top of the existing/new back upholstery to the back canes with the two
(2) existing mounting screws and washers.
15. Secure bottom of the existing/NEW back upholstery to rear of the seat pan.
16. Secure the bottom of the existing/NEW back upholstery to the back canes with new
tie-wraps.
NOTE: Clean upholstery with warm DAMP cloth and mild detergent to remove superficial soil.
WARNING
Laundering or moisture will reduce flame retardancy of the upholstery.
BACK FRAME
NOTE: When replacing the back upholstery, back assembly or changing back height, follow
these guidelines for spreader bar height (where applicable):
BACK HEIGHT ◆ SPREADER BAR HEIGHT
16-inches* 5-inches
17-inches* 5-inches
18 to 19-inches* 7-inches
20 to 24-inches 7-inches
NOTE: Spreader Bar required on back heights 20 to 24-inches. *Spreader bar ONLY required
on these back heights if the width or depth of the chair exceeds 19-inches.
◆Height of Spreader Bar from Bottom of Back Canes to Top of Spreader Bar Clamp.
BACK HEIGHT ◆ SPREADER BAR
16 to 17-inches 5-inches
18 to 24-inches 7-inches
◆Height of Spreader Bar from Bottom
of Back Canes to Top of Spreader Bar
Clamp.
NOTE: Spreader bar required on all Heavy
Duty models.
17. If necessary, reposition the spreader bar at
the correct height for the corresponding
back height and torque the mounting
hardware to 60 in-lbs.
18. Reinstall the armrest onto the wheelchair.
Refer to INSTALLING/REMOVING FLIP
BACK ARMRESTS in SECTION 4 of the
Owner’s Manual, part number 1104782
or 1123757.
HEAVY DUTY MODELS
HEIGHT
Back Cane
Mounting
Screw
Washer
Back
Upholstery
Insert
Mounting Screws
Torque to 75 in-lbs
Locknuts
Spacers
Locknut
Spreader
Bar
Mounting
Screw
Torque to
60 in-lbs
Washers
FIGURE 2 - CHANGING BACK
HEIGHT
3G Storm Series® Wheelchairs 54 Part No. 1104849
Page 55
BACK FRAME SECTION 8
BACK ANGLE ADJUSTMENT (FIGURE 3)
1. Remove armrests from the wheelchair. Refer to INSTALLING/REMOVING FLIP
BACK ARMRESTS in SECTION 4 of the Owner’s Manual, part number 1104782 or
1123757.
2. Remove the mounting screw and washer from the top mounting hole of back angle
plate and back cane.
NOTE: To avoid losing the insert in each back cane, thread the mounting screw through the
cane from the inside of wheelchair to hold the insert in place.
3. Remove the mounting screw and washer from the bottom mounting hole of the back
angle plate and back cane.
4. Reposition the back canes into the correct mounting holes of the back angle plate to
obtain a back angle between 80o and 100o in 5o increments.
5. Torque mounting screws to 75 in-lbs.
6. Reinstall the armrests onto the wheelchair. Refer to
INSTALLING/REMOVING FLIP
BACK ARMRESTS in SECTION 4 of the Owner’s Manual, part number 1104782 or
1123757.
Top
Bottom
Top Front
Bottom Rear
80°
Top
Top Front
2nd From
Bottom
Bottom Center
85°
BACK FRAME
Top
Front
Top
90
Bottom
Front
o
Top
2nd From
Bottom
Bottom
Top Center
Bottom Front
95°
Top
Bottom
Top Rear
Bottom
Front
100°
FIGURE 3 - BACK ANGLE ADJUSTMENT
Part No. 1104849 55 3G Storm Series® Wheelchairs
Page 56
This Section Includes the Following:
Warnings for Handling and Replacing Batteries
Using the Proper Batteries
Installing/Removing Batteries Into/From Battery Boxes
Disconnecting/Connecting Battery Cables
When to Charge Batteries
Charging Batteries
Replacing Batteries
Removing/Installing Battery Boxes
BATTERIESSECTION 9
BATTERIES
WARNINGS FOR HANDLING AND REPLACING BATTERIES
Make sure power to the wheelchair is OFF before performing this procedure.
The use of rubber gloves and chemical goggles or face shield is recommended
when working with batteries.
Invacare strongly recommends that battery installation and battery
replacement always be done by a qualified technician.
After ANY adjustments, repair or service and BEFORE use, make sure all
attaching hardware is tightened securely - otherwise injury or damage may
result.
22NF batteries weigh 37 pounds each. GP24 batteries weigh 51 pounds
each. Use proper lifting techniques (lift with your legs) to avoid injury.
Failure to use the correct battery size and/or voltage may cause damage to
your wheelchair and give you unsatisfactory performance.
ALWAYS use a battery lifting strap when lifting a battery. It is the most
convenient method and assures that the battery acid will not spill. It also
helps to prolong the life of the battery.
DO NOT tip the batteries. Keep the batteries in an upright position.
WARNING
NEVER allow any of your tools and/or battery cable(s) to contact BOTH
battery post(s) at the same time. An electrical short may occur and serious
personal injury or damage may occur.
When tightening the clamps, always use a box wrench. Pliers will “round
off” the nuts. NEVER wiggle the battery terminal(s)/post(s) when
tightening. The battery may become damaged.
The POSITIVE (+) RED battery cable MUST connect to the POSITIVE (+)
battery terminal(s)/post(s), otherwise serious damage will occur to the
electrical system.
The warranty and performance specifications contained in this manual are
based on the use of deep cycle gel cell batteries. Invacare strongly
recommends their use as the power source for this unit.
NOTE: If there is battery acid in the bottom of the battery tray or on the sides of the battery(ies),
apply baking soda to these areas to neutralize the battery acid. Before reinstalling the NEW or
existing battery(ies), clean the baking soda from the battery tray or battery(ies).
3G Storm Series® Wheelchairs 56 Part No. 1104849
Page 57
BATTERIES
SECTION 9
USING THE PROPER BATTERIES (FIGURES 1 AND 2)
1. Place battery on ground/flat surface.
2. Visually draw a horizontal and vertical centerline through the middle of battery.
3. Position the battery so that the terminals are above the horizontal centerline.
4. Visually inspect the battery to ensure the correct position of the positive and negative terminals, as shown in FIGURES 1 AND 2:
WARNING
FOR 3G STORM WHEELCHAIRS THAT USE 22NF BATTERIES: Batteries
with terminal configuration (positive on the left and negative on the right) as
shown below MUST be used. Batteries that have the reverse terminal
configuration MUST NOT be used - otherwise injury and damage may occur.
Terminals must have a cross hole in them as shown in DETAIL “A” below.
BATTERIES
PROPER BATTERY TO BE USED
POSITIVE (+) Battery
Terminal/Post
Centerline
NEGATIVE (-) Battery
Terminal/Post
Centerline
22NF
DETAIL “A” - TERMINAL CROSS HOLES
NEGATIVE (-) Battery
Terminal/Post
POSITIVE (+) Battery
Terminal/Post
22NF
DO NOT USE
Terminal Cross Holes
FIGURE 1 - USING THE PROPER BATTERIES - 22NF
Part No. 1104849 57 3G Storm Series® Wheelchairs
Page 58
FOR 3G STORM WHEELCHAIRS THAT USE GP24 BATTERIES: Batteries
with terminal configuration (positive on the right and negative on the left) as
shown below MUST be used. Batteries that have the reverse terminal
configuration MUST not be used - otherwise injury and damage may occur.
Terminals must have a cross hole in them as shown in DETAIL “A” below.
NEGATIVE (-) Battery
BATTERIES
Terminal/Post
WARNING
POSITIVE (+) Battery
Terminal/Post
BATTERIESSECTION 9
POSITIVE (+) Battery
Terminal/Post
NEGATIVE (-)
Battery Terminal/Post
GP24
GP24
DO NOT USE
DETAIL “A” - TERMINAL CROSS HOLES
Terminal Cross Holes
FIGURE 2 - USING THE PROPER BATTERIES - GP24
3G Storm Series® Wheelchairs 58 Part No. 1104849
Page 59
BATTERIES
SECTION 9
INSTALLING/REMOVING BATTERIES INTO/FROM
BATTERY BOXES (FIGURE 3)
NOTE: To remove the battery(ies) from the battery box(es), reverse the following procedure.
NOTE: Have the following tools available:
TOOL QTY COMMENTS
Battery Lifting Strap 1 Supplied
1/2-inch (6 pt) Box Wrench 1 Not Supplied
NOTE: If there is battery acid in the bottom or on the sides of the battery box(es) or battery(ies),
apply baking soda to these areas to neutralize the battery acid. Before reinstalling the NEW or
existing battery(ies), clean the baking soda from the battery box(es) or battery(ies).
NOTE: When securing battery lifting strap to battery, observe polarity markings located on the
ends of the battery lifting strap, (+) side to POSITIVE (+) battery post and (-) side to NEGATIVE
(-) battery post.
1. If necessary, remove the battery boxes from the wheelchair. Refer to REMOVING/
INSTALLING BATTERY BOXES in this section of the manual.
2. Disconnect battery cables. Refer to DISCONNECTING/CONNECTING BATTERY
CABLES for one (1) of the following:
A. Group 24 Batteries
B. 22NF batteries in single battery box
3. Secure battery lifting strap to battery terminal(s)/post(s) (FIGURE 3).
BATTERIES
CAUTION
Some battery
manufacturers mold a
carrying strap and/or hold
down flanges directly into
the battery case. Batteries
which interfere with the
battery box cannot be used
for these applications.
Attempting to “wedge” a
battery into a battery box
may damage the box and/or
the battery.
4. Remove batteries from
battery box(es).
Battery Lifting
Strap
Battery Box Bottom
Molded Carrying Straps (These
batteries must NOT be used.)
Group 24
22NF Battery Box
Bottom
FIGURE 3 - INSTALLING/REMOVING
BATTERIES INTO/FROM BATTERY BOXES
Part No. 1104849 59 3G Storm Series® Wheelchairs
Page 60
DISCONNECTING/CONNECTING BATTERY CABLES
NEVER allow any of your tools and/or battery cable(s) to contact BOTH
battery post(s) at the same time. An electrical short may occur and serious
personal injury or damage may occur.
The use of rubber gloves and chemical goggles or face shields is
recommended when working with batteries.
When tightening the clamps, always use a box wrench. Pliers will “round off”
the nuts. NEVER wiggle the battery terminal(s)/post(s) when tightening. The
BATTERIES
battery may become damaged.
The POSITIVE (+) RED battery cable MUST connect to the POSITIVE (+)
battery terminal(s)/post(s), otherwise serious damage will occur to the
electrical system.
GROUP 24 BATTERIES ON WHEELCHAIR MANUFACTURED
BEFORE 1/26/04 (FIGURE 4)
BATTERIESSECTION 9
WARNING
Disconnecting.
NOTE: Perform this procedure on one (1) battery and battery box at a time. Repeat procedure
for other battery box.
1. Lift up on battery box lid to expose underlying cables.
2. Peel back battery clamp covers to expose battery clamp on each battery cable as follows:
A. RED battery clamp cover from RED battery cable.
B. BLACK battery clamp cover from BLACK battery cable.
3. Disconnect NEGATIVE N battery cable clamp from NEGATIVE(-) battery post
4. Disconnect POSITIVE P battery cable clamp from POSITIVE (+) battery post (FIGURE 4).
Connecting.
NOTE: Perform this procedure on one (1) battery and battery box at a time. Repeat procedure
for other battery box.
1. Position battery box top next to battery box bottom as shown in FIGURE 4.
2. Peel back battery clamp covers to expose battery clamp on each battery cable as follows:
A. RED battery clamp cover from RED battery cable.
B. BLACK battery clamp cover from BLACK battery cable.
3. Connect NEGATIVE N battery cable clamp to NEGATIVE(-) battery post and connect
POSITIVE P battery cable clamp to POSITIVE (+) battery post (FIGURE 4).
4. Secure the battery cable clamp(s) to the battery post(s) with provided hex screws and
nuts. Securely tighten.
3G Storm Series® Wheelchairs 60 Part No. 1104849
Page 61
BATTERIES
SECTION 9
5. Verify battery cable clamps(s) are correctly installed and securely tightened.
6. Reposition battery clamp covers over battery post(s).
7. Install the battery box top(s).
8. Install the battery box(es) into the wheelchair. Refer to
REMOVING/INSTALLING
BATTERY BOXES in this section of this manual.
NOTE: New Battery(ies) MUST be fully charged BEFORE using, otherwise the life of the
battery(ies) will be reduced.
9. If necessary, charge the battery(ies). Refer to
CHARGING BATTERIES in this section of
the manual.
N
TWO (2) CONNECTOR
BLACK
Battery
Clamp
Cover
NEGATIVE (-)
RED POSITIVE (+)
Black
Battery
Cable
Clamp
NEGATIVE (-)
Battery
Terminal/Post
BATTERY BOX
Battery Cable
Battery Box Bottom
Two (2)
Connector
Battery
Box Top
BLACK
NEGATIVE (-)
Battery
Cable
RED
Battery
Clamp
Cover
Battery
ONE (1) CONNECTOR
BATTERY BOX
Black NEGATIVE
BLACK
Battery
Clamp
Cover
Black NEGATIVE
Battery Cable
Clamp
Battery Cable
(-)
POSITIVE (+)
Battery
Terminal/Post
(-)
One (1) Connector
Battery Box Top
RED POSITIVE
BATTERIES
P
(+)
Battery
Cable
RED
Battery
Box
Bottom
NEGATIVE (-)
Battery
Terminal/Post
POSITIVE (+)
Battery
Terminal/Post
RED
Battery
Clamp
Cover
Red POSITIVE (+)
Battery Cable
Clamp
NEGATIVE (-)
Battery Terminal/
Post
Battery Box
Bottom
POSITIVE
(+) Battery
Cable
Clamp
POSITIVE (+)
Battery Terminal/Post
FIGURE 4 - DISCONNECTING/CONNECTING BATTERY CABLE(S) -
GROUP 24 BATTERIES
Part No. 1104849 61 3G Storm Series® Wheelchairs
Page 62
BATTERIESSECTION 9
GROUP 24 BATTERIES ON WHEELCHAIRS BUILT
AFTER 1/25/04 (FIGURE 5)
Disconnecting.
NOTE: Perform this section on one (1) battery and battery box at a time. Repeat section for
other battery box.
1. Lift up on battery box lid to expose underlying cables.
2. Peel back battery terminal caps to expose battery cable ends as follows:
A. RED battery terminal cap from RED battery cable.
BATTERIES
3. Remove the locknut and mounting screw to disconnect BLACK battery cable from
4. Remove the locknut and fuse mounting screw to disconnect RED battery cable from
Connecting.
NOTE: Perform this section on one (1) battery and battery box at a time. Repeat section for
other battery box.
1. Position battery box top above battery as shown in FIGURE 5.
2. Peel back battery terminal caps to expose battery cable ends as follows:
3. Install the locknut and mounting screw to connect the BLACK battery cable to the
4. Install the locknut and fuse mounting screw to connect the RED battery cable to the
B. BLACK battery terminal cap from BLACK battery cable.
the NEGATIVE(-) battery terminal/post (DETAIL “A” of FIGURE 5)
the POSITIVE (+) battery post (DETAIL “A” of FIGURE 5).
A. RED battery terminal cap from RED battery cable.
B. BLACK battery terminal cap from BLACK battery cable.
NEGATIVE(-) battery terminal/post (DETAIL “A” of FIGURE 5).
POSITIVE (+) battery post (DETAIL “A” of FIGURE 5).
5. Verify battery cables are correctly installed and securely tightened.
NOTE: Cables will be crossed on one (1) connector battery box top.
6. Reposition terminal caps over battery post(s).
7. Install the battery box top(s).
8. Install the battery boxes into the wheelchair. Refer to REMOVING/INSTALLING
BATTERY BOXES in this section of the manual.
NOTE: New Battery(ies) MUST be fully charged BEFORE using, otherwise the life of the
battery(ies) will be reduced.
9. If necessary, charge the battery(ies). Refer to CHARGING BATTERIES in this section
of the manual.
3G Storm Series® Wheelchairs 62 Part No. 1104849
Page 63
BATTERIES
SECTION 9
DETAIL “A” - CONNECTING CABLES TO TERMINALS
Top View of Battery
Locknut
NEGATIVE (-)
Battery
Terminal/Post
Black NEGATIVE
(-)
Battery Cable
TWO (2) CONNECTOR
BATTERY BOX
Black
NEGATIVE (-)
Battery
Cable
Mounting Screw
Two (2) Connector
Battery Box Top
RED POSITIVE (+) Battery Cable
ONE (1) CONNECTOR
BATTERY BOX
One (1) Connector
Battery Box Top
Locknut
POSITIVE (+)
Battery
Terminal/Post
BATTERIES
Fuse Mounting Screw
Black NEGATIVE
(-)
Battery Cable
BLACK Battery
Terminal Cap
NEGATIVE (-)
Battery
Terminal/Post
RED POSITIVE (+)
Battery Cable
Top View of Battery
RED Battery
Terminal Cap
POSITIVE (+)
Battery
Terminal/Post
RED
Battery
Terminal
Cap
NEGATIVE (-)
Battery
Terminal/Post
Red POSITIVE
(+)
Battery Cable
POSITIVE (+)
Terminal/Post
Top View of Battery
FIGURE 5 - DISCONNECTING/CONNECTING BATTERY CABLE(S) -
GROUP 24 BATTERIES
BLACK
Battery
Terminal Cap
Battery
Part No. 1104849 63 3G Storm Series® Wheelchairs
Page 64
22NF BATTERIES IN SINGLE BATTERY BOX (FIGURE 5)
NOTE: Note polarity of white battery cable (jumper) battery terminal ends.
Disconnecting.
1. Remove battery terminal cap(s) from battery terminal(s) ends. Refer to DETAIL “A”
2. Disconnect WHITE battery cable (jumper) NEGATIVE
3. Disonnect NEGATIVE (-) BLACK battery cable of the battery box top from NEGATIVE
BATTERIES
4. Disonnect POSITIVE (+) RED battery cable on battery box top from POSITIVE (+)
Connecting.
1. Remove battery terminal cap(s) from battery terminal(s) ends. Refer to DETAIL “A”
2. Connect WHITE battery cable (jumper) NEGATIVE N terminal end to NEGATIVE
BATTERIESSECTION 9
in FIGURE 5.
N
terminal end from
NEGATIVE (-) battery terminal/post of front battery and disconnect POSITIVE
P
terminal end from POSITIVE (+) battery terminal/post of rear battery.
(-) battery terminal/post of rear battery.
battery terminal/post of front battery.
in FIGURE 5.
(-) battery terminal/post of front battery and connect POSITIVE P terminal end to
POSITIVE (+) battery terminal/post of rear battery.
3. Place battery top upside down on top of rear battery.
4. Connect NEGATIVE (-) BLACK battery cable of the battery box top to NEGATIVE
(-) battery terminal/post of rear battery.
5. Position battery box top right side up and rotate outward toward right to expose
POSITIVE (+) battery terminal/post of front battery.
6. Connect POSITIVE (+) RED battery cable on battery box top to POSITIVE (+)
battery terminal/post of front battery.
7. Replace battery terminal cap(s) onto battery cable terminal end(s).
8. Rotate top toward left into position. Secure in place.
9. Install the battery box into the wheelchair. Refer to REMOVING/INSTALLING
BATTERY BOXES in this section of the manual.
NOTE: New Battery(ies) MUST be fully charged BEFORE using, otherwise the life of the
battery(ies) will be reduced.
10. If necessary, charge the battery(ies). Refer to CHARGING BATTERIES in this section of
the manual.
3G Storm Series® Wheelchairs 64 Part No. 1104849
Page 65
BATTERIES
SECTION 9
Front
Battery
Single
Battery
Box
Bottom
Rear
Battery
P
STEP 2
FRONT
REAR
N
WHITE
Battery
Cable
(Jumper)
Front
Battery
Rear
Battery
NEGATIVE (-)
BLACK
Battery Cable
POSITIVE (+)
RED Battery
Cable
STEPS 3 AND 4
FRONT
STEPS 5 AND 6
Battery
Box Bottom
NEGATIVE (-)
Battery
Terminal/Post
Battery
Box Top
(Under Side
shown)
Fuse
Block
BATTERIES
POSITIVE (+) RED Battery Cable
DETAIL “A”
Terminal Cap
Terminal End
POSITIVE (+)
Battery
Terminal/Post
Front
Battery
Rear
Battery
Battery Box Bottom
NOTE: Battery box top cut away for clarification
purposes only.
FIGURE 5 - CONNECTING BATTERY CABLES -
SINGLE 22NF BATTERY BOX
Battery
Box Top
Part No. 1104849 65 3G Storm Series® Wheelchairs
Page 66
WHEN TO CHARGE BATTERIES (FIGURE 6)
MKIV-A AND MKIV-RII
JOYSTICKS
The Battery Discharge Indicator (BDI) is a
bar graph display located on the MKIV
joystick. It will keep you informed as to
power availability. A visual warning is
given before the power becomes too low
to operate the wheelchair. At full charge
BATTERIES
the two (2) LEFT segments and the farthest
RIGHT segment of the bar graph will be
illuminated. As the battery becomes
discharged, the farthest RIGHT segment
will progressively move to the LEFT until
only the last two (2) bars (LEFT) are
illuminated. At this level the last two (2)
bars (LEFT) will start to Flash ON and OFF
to indicate that the end user should charge
the batteries as soon as possible.
MKIV-A+ JOYSTICKS
BATTERIESSECTION 9
Battery Discharge
Indicator (BDI)
MKIV- A
JOYSTICK
Battery Discharge Indicator
(BDI) (in LCD Readout)
MKIV- A+
JOYSTICK
Battery Discharge
Indicator (BDI)
MKIV- RII JOYSTICK
(TORQUE SP ONLY)
FIGURE 6 - WHEN TO CHARGE
BATTERIES
The left half of the second line on the LCD is the Battery Discharge Indicator (BDI). It
provides information on the remaining charge in the batteries. At full charge solid blocks
fill in all ten (10) segments between E (Empty) and F (Full). As the battery becomes
discharged, the farthest right segments will progressively disappear a half bar at a time
until no segments appear between E and F. At this level the word RECHARGE will
appear on the second line to indicate that the user should charge the batteries as soon
as possible.
CHARGING BATTERIES (FIGURE 7)
NOTE: New batteries MUST be fully charged prior to initial use of the wheelchair.
WARNING
Never attempt to recharge the batteries by attaching cables directly to the
battery terminals or clamps. Always use the recharging plug located on the
side of the wheelchair frame.
DO NOT attempt to recharge the batteries and operate the power wheelchair
at the same time.
During use and charging, unsealed batteries will vent hydrogen gas which is
explosive in the right concentration with air.
DO NOT sit in wheelchair while charging batteries.
CAUTION
Always charge new batteries before initial use or battery life will be reduced.
3G Storm Series® Wheelchairs 66 Part No. 1104849
Page 67
BATTERIES
SECTION 9
NOTE: As a general rule, batteries should be recharged daily to assure the longest possible life
and minimize the required charging time. Plan to recharge the batteries when it is anticipated
the wheelchair will not be used for a long period of time.
The range per battery charge using recommended batteries should be approximately 5
to 9 hours of typical operation. Extensive use on inclines may substantially reduce per
charge mileage.
DESCRIPTION OF BATTERY CHARGERS
The charger automatically reduces the charge from an initially high rate to a zero
reading at a fully charged condition. If left unattended, the charger should automatically
shut-off when full charge is obtained.
There are some basic concepts which will help you understand this automatic
process. They are:
The amount of electrical current drawn within a given time to charge a battery is called
the “charge rate”. If, due to usage, the charge stored in the battery is low, the charge
rate is high, as indicated by the green light on the charger. Initially, the green light will
stay illuminated for a short period of time followed by a longer period of off time. As a
charge builds up, the charge rate is reduced, and the green light will stay illuminated for
a longer period of time followed by a shorter off time.
BATTERIES
WARNING
NEVER leave the charger unattended when the charger circuit breaker is
tripping ON and OFF. A condition between the battery charger and batteries
exists. Contact an Invacare dealer.
NOTE: If performing the charging procedures independently, READ and CAREFULLY follow the
individual instructions for each charger (supplied or purchased).
NOTE: If charging instructions are not supplied, consult a qualified service technician for proper
procedures.
REQUIRED ITEMS:
TOOL QUANTITY COMMENTS
Battery Charger 1 Supplied
Extension Cord 1 Not Supplied
(3-prong plug, 15 ampere current rating; industrial type)
Part No. 1104849 67 3G Storm Series® Wheelchairs
Page 68
USING BATTERY CHARGERS
1. Perform one (1) of the following:
NOTE: The battery charger connector is factory installed on the RIGHT side of the wheelchair.
It can be positioned on either side of the wheelchair for user convenience.
NOTE FOR RECLINERS ONLY: If the wheelchair is a recliner, the battery charger connector as
well as the limit switch, are factory set on the RIGHT side of the wheelchair. However, they can
be positioned on either side for user convenience. The limit switch MUST BE positioned on the
same side as the battery charger connector.
BATTERIES
2. Plug the charger’s AC power cord, or extension, into the grounded 120 VAC wall outlet.
3. Wait until charging is complete.
NOTE: It is advantageous to recharge frequently rather than only when necessary. In fact, a
battery’s life is extended if the charge level is maintained well above a low condition.
NOTE: If the batteries need to be charged more often or take longer to charge than normal,
they may need to be replaced. Contact an Invacare dealer for service.
BATTERIESSECTION 9
A. WHEELCHAIRS EQUIPPED WITH MCC-MARK IV JOYSTICK - Attach
the battery charger connector to the charger cable/battery harness.
B. TORQUE SP EQUIPPED WITH MARK IV RII JOYSTICK - Attach the
battery charger connector to the charger port on the FRONT of the joystick.
WHEELCHAIRS EQUIPPED WITH
MCC-MARK IV JOYSTICK
Battery Charger Connector
From Battery
Charger
Three (3)
Pronged Plug
Battery Charger
Battery Charger Mount Bracket
From
Battery
Charger
Charger Cable
Battery Boxes
Base Frame
WHEELCHAIRS EQUIPPED WITH
MARK IV RII JOYSTICK
FRONT VIEW OF
JOYSTICK
Charger Port
Battery
Boxes
Battery Charger
Charger
Joystick
Three (3) Pronged Plug
From Battery
Charger
Port
NOTE: This joystick is available only on the
Torque SP.
Support
Plate
Battery Charger
Port
FIGURE 7 - CHARGING BATTERIES
3G Storm Series® Wheelchairs 68 Part No. 1104849
Page 69
BATTERIES
SECTION 9
REPLACING BATTERIES
NOTE: Invacare recommends that both batteries be replaced if one (1) battery is defective.
RECOMMENDED BATTERY TYPES
WARNING
Failure to use the correct battery size and/or voltage may cause damage to
your wheelchair and give you unsatisfactory performance.
The warranty and performance specifications contained in this manual are
based on the use of deep cycle gel cell or sealed lead acid batteries.
Invacare strongly recommends their use as the power source for this unit.
NOTE: GB denotes gearless/brushless. Both battery sizes are deep cycle batteries.
NOTE: Charge batteries daily. It is critical not to let them run low at any time.
1. Remove the battery boxes from the wheelchair. Refer to REMOVING/INSTALLING
BATTERY BOXES in this section of the manual.
2. Remove existing batteries from the battery box(es). Refer to INSTALLING/
REMOVING BATTERIES INTO/FROM BATTERY BOXES in this section of manual.
BATTERIES
3. Clean the new battery terminals. Refer to CLEANING BATTERY TERMINALS in
this section of the manual.
4. Install the new batteries into the battery box(es). Refer to INSTALLING/REMOVING
BATTERIES INTO/FROM BATTERY BOXES in this section of the manual.
5. Install the battery boxes into the wheelchair. Refer to REMOVING/INSTALLING
BATTERY BOXES in this section of the manual.
Part No. 1104849 69 3G Storm Series® Wheelchairs
Page 70
TORQUE SP Up to 250 lbs 4 Pole Motor *22NF
BATTERIES
* Two batteries inside one battery box.
BATTERIESSECTION 9
BATTERY REQUIREMENTS AND WEIGHT LIMITATIONS
(FOR WHEELCHAIRS BUILT BEFORE 1/26/04)
MODEL WEIGHT MOTOR BATTERY
LIMITATION
ARROW Up to 300 lbs Gearless/Brushless Group 24
Up to 400 lbs 4 Pole Motor Group 24
251-300 lbs 4 Pole Motor *22NF
Gearless/Brushless Group 24
301-350 lbs 4 Pole Motor Group 24
RANGER X Up to 300 lbs 4 Pole Motor Group 24
Gearless/Brushless Group 24
BATTERY REQUIREMENTS AND WEIGHT LIMITATIONS
(FOR WHEELCHAIRS BUILT AFTER 1/25/04)
MODEL WEIGHT MOTOR BATTERY
LIMITATION
ARROW Up to 400 lbs Gearless/Brushless Group 24
TORQUE SP 251-300 lbs 4 Pole Motor *22NF
301-350 lbs 4 Pole Motor Group 24
Up to 400 lbs Gearless/Brushless Group 24
RANGER Up to 400 lbs Gearless/Brushless Group 24
* Two batteries inside one battery box.
NOTE: Weight limitation is total weight: user weight plus any additional items that the user may
require (back pack, etc.). Example: If weight limitation of the chair is 300 lbs and additional
items equal 25 lbs, subtract 25 lbs from 300 lbs This gives the maximum weight limitation of
the user to be 275 lbs
3G Storm Series® Wheelchairs 70 Part No. 1104849
Page 71
BATTERIES
SECTION 9
CLEANING BATTERY TERMINALS
WARNING
Most batteries are not sold with instructions. However, warnings are
frequently noted on the cell caps. Read them carefully.
DO NOT allow the liquid in the battery to come in contact with skin,
clothes or other possessions. It is a form of acid and harmful or damaging
burns may result. Should the liquid touch your skin, wash the area
IMMEDIATELY and thoroughly with cool water. In serious cases or if eye
contact is made, seek medical attention IMMEDIATELY.
1. Examine battery clamps and terminals for corrosion.
2. Verify the plastic caps are in place over battery cell holes.
3. Clean terminals and inside battery clamps by using a battery cleaning tool, wire
brush, or medium grade sand paper.
NOTE: Upon completion, areas should be shiny, not dull.
4. Carefully dust off all metal particles.
BATTERIES
REMOVING/INSTALLING BATTERY BOXES
GROUP 24 BATTERY BOXES FOR WHEELCHAIRS WITHOUT
VENT TRAY (FIGURE 8)
WARNING
Each battery weighs 51 pounds. Use proper lifting techniques (lift with your
legs) to avoid injury.
Removing.
1. Place the wheelchair in a well ventilated area where work can be performed without
risking damage to carpeting or floor covering.
2. Verify the joystick ON/OFF switch is in the OFF position.
3. Rotate the levers of the battery retainer assembly to the unlocked position.
4. Lift battery retainer assembly up off the mounting screws that secure the shocks to
the base frame.
NOTE: For gearless/brushless motors, ensure that the motor lock levers are in the engaged
(drive) position. Refer to SECTION 9.
5. Slide one (1) connector battery box along the sub-frame and remove from the
wheelchair.
6. Slide the two (2) connector battery box along the sub-frame and remove from the
wheelchair.
Part No. 1104849 71 3G Storm Series® Wheelchairs
Page 72
BATTERIESSECTION 9
Installing.
1. Place the wheelchair in a well ventilated area where work can be performed without
risking damage to carpeting or floor covering.
2. Verify the joystick ON/OFF switch is in the OFF position.
3. Secure the battery box carrying strap to the lid of the two (2) connector battery box.
4. Place two (2) connector battery box onto the battery sub-frame assembly with guide
pins facing the inside of the wheelchair.
5. Slide the two (2) connector battery box along the sub-frame until its guide pins are
engaged in the sub-frame connector.
BATTERIES
NOTE: Visually inspect to ensure the connection is properly made. Connectors MUST be fully engaged.
NOTE: Make certain that the battery box carrying strap is positioned on top of the battery box
and will not interfere with the one (1) battery box guide pins when engaging the connector on
the one (1) battery box lid.
6. Secure the battery box carrying strap to the lid of the one (1) connector battery box.
7. Place one (1) connector battery box onto battery sub-frame.
8. Slide one (1) connector battery box along the sub-frame until its guide pins are
NOTE: Visually inspect to ensure the connection is properly made. Connectors MUST be fully engaged.
9. Place the battery retainer assembly on head portion of the mounting screws that
The battery retainer assembly MUST be locked securely to hold the
battery boxes firmly in place or battery box connectors may be damaged
causing erratic wheelchair operation.
10. Rotate the levers of the battery retainer assembly to the locked position.
engaged in the connector of the two (2) connector battery box.
secure the shocks to the base frame.
CAUTION
FRONT OF
BASE FRAME
Battery Retainer
Assembly
REAR OF
Locked
Position
Unlocked
Position
Levers
BASE FRAME
FIGURE 8 - REMOVING/INSTALLING BATTERY BOXES - GROUP 24
BATTERY BOXES FOR WHEELCHAIRS WITHOUT VENT TRAY
3G Storm Series® Wheelchairs 72 Part No. 1104849
Page 73
BATTERIES
SECTION 9
GROUP 24 BATTERY BOXES FOR WHEELCHAIRS EQUIPPED
WITH VENT TRAY (FIGURE 9)
WARNING
Each battery weighs 51 pounds. Use proper lifting techniques (lift with your
legs) to avoid injury.
Removing.
1. Place the wheelchair in a well ventilated area where work can be performed without
risking damage to carpeting or floor covering.
2. Verify the joystick ON/OFF switch is in the OFF position.
3. Pull the battery box retainer UP over the end of the one (1) connector battery box.
4. Slide one (1) connector battery box along the sub-frame and remove from the wheelchair.
5. Slide the two (2) connector battery box along the sub-frame and remove from the wheelchair.
Installing.
1. Place the wheelchair in a well ventilated
area where work can be performed
without risking damage to carpeting or
floor covering.
2. Verify the joystick ON/OFF switch is in
the OFF position.
Battery Box
Sub-Frame
Battery Box
Retainer Bar
Two (2)
Connector
Battery Box
BATTERIES
3. Secure the battery box carrying strap
to the lid of the two (2) connector
battery box.
4. Place two (2) connector battery box
onto the battery sub-frame assembly
with guide pins facing the inside of the
wheelchair.
5. Slide the two (2) connector battery
box along the sub-frame until its guide
pins are engaged in the sub-frame
connector.
NOTE: Visually inspect to ensure the
connection is properly made. Connectors
MUST be fully engaged.
NOTE: Make certain that the battery box
carrying strap is positioned on top of the
battery box and will not interfere with the one
(1) battery box guide pins when engaging the
connector on the one (1) battery box lid.
6. Secure the battery box carrying strap
to the lid of the one (1) connector
battery box.
Base
Frame
One (1) Connector Battery Box
Two (2) Connector
Battery Box
Battery Box
Sub-Frame
Base
Frame
One (1) Connector Battery Box
Battery Box
Retainer Bar
FIGURE 9 - REMOVING/
INSTALLING BATTERY BOXES GROUP 24 BATTERY BOXES FOR
WHEELCHAIRS EQUIPPED WITH
VENT TRAY
Part No. 1104849 73 3G Storm Series® Wheelchairs
Page 74
BATTERIESSECTION 9
7. Place one (1) connector battery box onto battery sub-frame.
8. Slide one (1) connector battery box along the sub-frame until its guide pins are
engaged in the connector of the two (2) connector battery box.
NOTE: Visually inspect to ensure the connection is properly made. Connectors MUST be fully engaged.
CAUTION
The battery box retainer MUST be locked securely to hold the battery
boxes firmly in place or battery box connectors may be damaged causing
erratic wheelchair operation.
BATTERIES
9. Pull the battery box retainer down over the end of the one (1) connector battery
22NF BATTERY BOXES (FIGURE 10)
NOTE: To install the battery box onto the wheelchair, reverse the following procedure.
1. Place the wheelchair in a well ventilated area where work can be performed
2. Verify the joystick ON/OFF switch is in the OFF position.
3. Disconnect the battery cable from the outside of the battery box.
4. Disconnect the battery box retention strap.
5. Remove the battery box.
6. Slide the four (4) clips that secure the battery box cover to the battery box to the
NOTE: Arrows on the battery box cover point to the open position.
7. Remove battery box cover from the battery box.
box until it is securely clipped (locked) into place.
without risking damage to carpeting or floor covering.
OPEN position.
Arrows
Battery Box
Retention Strap
FIGURE 10 - REMOVING/INSTALLING BATTERY BOXES -
22NF BATTERY BOXES
3G Storm Series® Wheelchairs 74 Part No. 1104849
Page 75
This Section Includes the Following:
Removing/Installing the Wiring Harness
Adjusting Limit Switch
SECTION 10WIRING HARNESS
WARNING
After ANY adjustments, repair or service and BEFORE use, make sure that all
attaching hardware is tightened securely - otherwise injury or damage may result.
REMOVING/INSTALLING THE WIRING HARNESS
GROUP 24 BATTERIES (FIGURE 1)
Removing.
1. Remove the battery boxes. Refer to
in SECTION 9 of this manual.
2. Remove the two mounting screws and locknuts that secure the wiring harness
bracket to the base frame (DETAIL “A” of FIGURE 1).
3. Perform one (1) of the following sections:
WHEELCHAIRS WITH MOTOR/GEARBOX ASSEMBLY
A. Cut TIE-WRAPS A and B that secure the two (2) motor/controller
connections and the controller/wiring harness connection (BLUE connectors)
together (DETAIL “B” of FIGURE 1).
B. Cut TIE-WRAP C that secures the battery charger cable, motor connector
cable, controller connector cable, and wiring harness cable to the base frame
(DETAIL “B” of FIGURE 1).
WHEELCHAIRS WITH GEARLESS/BRUSHLESS MOTOR
A. Cut TIE-WRAP A that secures the battery charger cable to the base frame
(DETAIL “C” of FIGURE 1).
REMOVING/INSTALLING BATTERY BOXES
WIRING HARNESS
NOTE: For STEPS 4-6 refer to DETAIL “B” or “C” of FIGURE 1.
4. Disconnect the battery harness/charger cable (BLUE) from the controller connector (BLUE).
5. Remove the two mounting screws that secure the charger cable to the mounting bracket.
6. Remove the wiring harness.
Installing.
1. Install NEW wiring harness w/bracket to the rear of the sub-frame and torque
mounting screws to 160 in-lbs (DETAIL “A” of FIGURE 1).
2. Secure the charger cable to the mounting bracket with the two (2) mounting
screws. Securely tighten (DETAIL “B” OR “C” of FIGURE 1).
3. Connect the battery harness/charger cable (BLUE) to the controller connector
(BLUE) (DETAIL “B” or “C” of FIGURE 1).
4. Perform one (1) of the following sections:
WHEELCHAIRS WITH MOTOR/GEARBOX ASSEMBLY
A. Group the two (2) motor/controller connections together along with the controller/wiring
harness connection (BLUE) and secure with TIE-WRAPS A and B (DETAIL “B” of
FIGURE 1).
B. Secure the Wiring Harness Cable, Battery Charger Cable, Controller Connector Cable,
and Motor Connector Cable to the suspension arm with TIE-WRAP C (DETAIL “B”
of FIGURE 1).
Part No. 1104849 75 3G Storm Series® Wheelchairs
Page 76
SECTION 10 WIRING HARNESS
WHEELCHAIRS WITH GEARLESS/BRUSHLESS MOTOR OPTION:
A. Secures the battery charger cable to the base frame with TIE-WRAP A
(DETAIL “C”).
5. Reinstall the battery boxes. Refer to REMOVING/INSTALLING BATTERY BOXES
in SECTION 9 of this manual.
DETAIL A - GROUP 24 BATTERIES
Mounting
Screws
Wire Harness
Bracket
Battery Box
Sub-Frame
WIRING HARNESS
DETAIL “B” - WHEELCHAIRS
WITH MOTOR/GEARBOX
Battery
Charger
Cable
Controller
Connector
Motor
Connector
REAR OF
CHAIR
ASSEMBLY
Mounting
Screws (not shown)
Locknuts
Tie-Wrap C
Base Frame
DETAIL “C” - WHEELCHAIRS
WITH GEARLESS/BRUSHLESS
MOTOR
Controller
Connector
(BLUE)
Wiring
Harness
Connector
(BLUE)
Mounting
Screws
Charger
Cable
Wiring
Harness
Cable
Motor
Controller
Connector
Controller
Connector (BLUE)
Tie-Wraps
A and B
Wiring Harness
Connector (BLUE)
Connector
Cable
Motor
Connector
NOTE: There is no
need to cut this tie-wrap.
Tie-Wrap
A
FIGURE 1 - REMOVING/INSTALLING THE WIRING HARNESS -
GROUP 24 BATTERIES
3G Storm Series® Wheelchairs 76 Part No. 1104849
Page 77
SECTION 10WIRING HARNESS
22NF BATTERIES (FIGURE 2)
Removing.
1. Remove the battery boxes. Refer to REMOVING/INSTALLING BATTERY BOXES
in SECTION 9 of this manual.
2. Cut the tie wrap that secures the rear portion of the wiring harness and joystick
cable to the rear of the seat frame (DETAIL “A”).
3. Perform one (1) of the following sections:
WHEELCHAIRS WITH MOTOR/GEARBOX ASSEMBLY
A. Cut TIE-WRAPS A and B that secure the two (2) motor/controller
connections and the controller/wiring harness connection (BLUE connectors)
together (DETAIL “B”).
B. Cut TIE-WRAP C that secures the battery charger cable, motor connector
cable, controller connector cable, and wiring harness cable to the base frame
(DETAIL “B”).
WHEELCHAIRS WITH GEARLESS/BRUSHLESS MOTOR
A. Cut TIE-WRAP A that secures the battery charger cable to the base frame
(DETAIL “C”).
WIRING HARNESS
NOTE: For STEPS 4-6 refer to Detail “B” or “C”.
4. Disconnect the battery harness/charger cable (BLUE) from the controller connector (BLUE).
5. Remove the two mounting screws that secure the charger cable to the mounting bracket.
6. Remove the wiring harness.
Installing.
1. Secure the charger cable to the mounting bracket with the two (2) mounting
screws. Securely tighten (DETAIL “B” or “C”).
2. Connect the battery harness/charger cable (BLUE) to the controller connector
(BLUE) (DETAIL “B” or “C”).
3. Perform one (1) of the following sections:
WHEELCHAIRS WITH MOTOR/GEARBOX ASSEMBLY
A. Group the two (2) motor/controller connections together along with the
controller/wiring harness connection (BLUE) and secure with TIE-WRAPS A
and B (DETAIL “B”).
B. Secure the Wiring Harness Cable, Battery Charger Cable, Controller Connector
Cable, and Motor Connector Cable to the suspension arm with TIE-WRAP C
(DETAIL “B”).
WHEELCHAIRS WITH GEARLESS/BRUSHLESS MOTOR OPTION:
A. Secures the battery charger cable to the base frame with TIE-WRAP A
(DETAIL “C”).
4. Tie-wrap NEW wiring harness and joystick cable to the rear of the seat frame (DETAIL “A”).
5. Reinstall the battery boxes. Refer to REMOVING/INSTALLING BATTERY BOXES
in SECTION 9 of this manual.
Part No. 1104849 77 3G Storm Series® Wheelchairs
Page 78
SECTION 10 WIRING HARNESS
WIRING HARNESS
DETAIL “A” - 22NF BATTERIES
Joystick
Cable
Wiring
Harness
NOTE: Illustration depicts gearless/brushless motor. Wiring harness is
secured to the rear of the seat frame in the same manner for
wheelchairs with conventional motor/gearbox assembly.
DETAIL “B” - WHEELCHAIRS
WITH GEARLESS/BRUSHLESS
MOTOR
Mounting
Screws
Controller
Connector
Motor
Connector
Connector
Tie-Wraps
Controller
Connector
A and B
Battery
Charger
Cable
Motor
DETAIL “C” - WHEELCHAIRS
WITH GEARLESS/BRUSHLESS
MOTOR
Controller
Connector
(BLUE)
Wiring
Harness
Connector
(BLUE)
Mounting
Screws
Charger
Mount
Bracket
Charger
Cable
NOTE: There is no
need to cut this tie-wrap.
Controller
Connector
(BLUE)
Wiring Harness
Connector
(BLUE)
FIGURE 2 - REMOVING/INSTALLING THE WIRING HARNESS -
22NF BATTERIES
3G Storm Series® Wheelchairs 78 Part No. 1104849
Page 79
SECTION 10WIRING HARNESS
ADJUSTING LIMIT SWITCH (FIGURE 3)
NOTE: The following section is for high back van seat model wheelchairs only.
WARNING
NEVER operate the wheelchair while in any recline position over 114
TO THE SEAT FRAME. If the limit switch does not stop the wheelchair from
°
operating in a recline position greater than 114
RELATIVE TO THE SEAT
FRAME, DO NOT operate the wheelchair. Adjust the limit switch BEFORE using
the wheelchair, otherwise injury or damage can occur.
1. Place the wheelchair on a level surface.
2. Recline the van seat back to a 24o to achieve the 114o angle relative to the seat
frame. Refer to
ADJUSTING VAN SEAT in SECTION 6 of the Owner’s Manual, part
number 1104782 or 1123757.
NOTE: The van seat frame is at a 5
o
angle relative to the ground. When the back angle is
adjusted to 114o relative to the seat, it will measure 61o relative to the ground.
NOTE: To determine 114o back angle relative to the seat frame, place a magnetic protractor
(available at any hardware store) on the back as shown in FIGURE 2 and adjust the back until
the magnetic protractor reads 61o.
°
RELATIVE
WIRING HARNESS
3. Turn the wheelchair power switch on the joystick to the ON position.
NOTE: The wheelchair should not operate.
4. IF wheelchair operates, proceed to the following steps to adjust the actuator on the
upper limit switch bracket:
A. Fully recline the back. Refer to ADJUSTING VAN SEAT in SECTION 6 of the Owner’s
Manual, part number 1104782 or 1123757.
NOTE: This will make access to the limit switch easier.
o
114
5o Seat Angle
Upper
Limit
Switch
Bracket
Phillips
Screws,
Washers
and
Locknuts
24o Back
Recline Angle
5-3/4-inches
o
61
Magnetic Protractor - (Will read 61
when back recline angle is at 114
relative to the seat frame)
o
o
FIGURE 3 - ADJUSTING LIMIT SWITCH
Part No. 1104849 79 3G Storm Series® Wheelchairs
Page 80
SECTION 10 WIRING HARNESS
B. Loosen, but do not remove, the two (2) phillips screws, washers and locknuts
that secure the actuator to the upper limit switch bracket.
C. Slide the actuator UP (towards the top of the wheelchair).
DO NOT over tighten the phillips screws that secure the actuator to the
upper limit switch bracket. Damage to the actuator can occur.
D. Only tighten the two (2) phillips screws, washers and locknuts that secure the
actuator to the upper limit switch bracket until the actuator does not move.
E. Repeat STEPS 1-3 until the wheelchair does not operate when the van seat back
is at a 24o angle.
WIRING HARNESS
CAUTION
3G Storm Series® Wheelchairs 80 Part No. 1104849
Page 81
RETENTION STRAP/RETAINER SECTION 11
This Section Includes the Following:
Replacing Battery Box Retainer Bar/Retainer Clip
WARNING
After ANY adjustments, repair or service and BEFORE use, make sure that all
attaching hardware is tightened securely - otherwise injury or damage may result.
REPLACING BATTERY BOX RETAINER BAR/RETAINER
CLIP (FIGURE 1)
1. Remove the battery box. Refer to REMOVING/INSTALLING BATTERY BOXES in
SECTION 9 of this manual.
REPLACING RETAINER CLIP
1. Remove the mounting screw that secures the retainer clip and shock (or rubber
element) to the base frame.
2. Remove the existing retainer clip.
3. Position the NEW retainer clip between the shock (or rubber element) and the
battery box sub-frame as shown in FIGURE 1. Make sure the angled end of the
retainer clip is facing up.
WARNING
The Battery Box Retainer Bar/Retainer Clip MUST be fastened securely in place
before using the wheelchair. Use Loctite 242 and torque to 160 in-lbs.
RETENTION STRAP/RETAINER
4. Reinstall the mounting screw that secures the retainer clip and shock (or rubber
element) to the base frame. Use Loctite 242 and torque to 160 in-lbs.
5. Reinstall the battery boxes. Refer to REMOVING/INSTALLING BATTERY BOXES in
SECTION 9 of this manual.
REPLACING RETAINER BAR
1. Remove the two (2) mounting screws and spacers that secure the battery box
retainer bar to the base frame.
2. Pull up on the battery box retainer bar to remove it from the base frame.
3. Install the two (2) existing spacers through the mounting holes in the NEW battery
box retainer bar.
WARNING
The Battery Box Retainer Bar/Retainer Clip MUST be fastened securely in place
before using the wheelchair. Use Loctite 242 and torque to 160 in-lbs.
4. Line up the NEW battery box retainer bar and spacers with the mounting holes in
the battery box sub frame and the base frame.
5. Reinstall the mounting screws that secure the battery box retainer bar between battery
box sub frame and the base frame. Use Loctite 242 and torque to 160 in-lbs.
6. Reinstall both battery boxes. Refer to REMOVING/INSTALLING BATTERY BOXES
in SECTION 9 of this manual.
Part No. 1104849 81 3G Storm Series® Wheelchairs
Page 82
SECTION 11
Mounting
Screws
Retainer
Bar
Retainer
Clip
RETENTION STRAP/RETAINER
RETENTION STRAP/RETAINER
Rubber
Element
Spacer
Shock
Assembly
Base Frame
Battery Box
Sub-frame
FIGURE 1 - REPLACING BATTERY BOX RETAINER BAR/RETAINER CLIP
3G Storm Series® Wheelchairs 82 Part No. 1104849
Page 83
WHEELS/MOTORS
This Section Includes the Following:
Replacing Pneumatic Tires/Tubes - Drive Wheels/Casters
Removing/Installing Drive Wheels
SECTION 12
Removing/Installing Drive Wheel Hub
Removing/Installing GB Motor Spacer
Removing/Installing Adapter Plate with Studs
Installing Wheel Lock Bracket onto Wheelchair
Removing/Installing the Rim and/or Tire
Removing/Installing Casters
Replacing Forks
Removing/Installing the Motor
Installing/Removing Fenders
WARNING
After ANY adjustments, repair or service and BEFORE use, make sure all
attaching hardware is tightened securely - otherwise injury or damage
may result.
CAUTION
As with any vehicle, the wheels and tires should be checked periodically
for cracks and wear and should be replaced.
WHEELS/MOTORS
REPLACING PNEUMATIC TIRES/TUBES - DRIVE WHEELS/
CASTERS
WARNING
DO NOT use your wheelchair unless it has the proper tire pressure
(p.s.i.). DO NOT overinflate the tires. Failure to follow these suggestions
may cause the tire to explode and cause bodily harm.
If tires are pneumatic, replacement of tire or tube MUST be performed
by an authorized Invacare dealer or qualified technician.
NOTE: If drive wheels or casters are pneumatic, under-inflation causes excessive wear which
results in poor performance of the tires.
REMOVING/INSTALLING DRIVE WHEELS (FIGURE 1)
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
Perform the following SECTION in a designated work area to prevent
damage to flooring (carpeting, tile, etc.).
Part No. 1104849 83 3G Storm Series® Wheelchairs
Page 84
REMOVING
1. Remove the battery boxes. Refer to REMOVING/INSTALLING BATTERY BOXES
in SECTION 9 of this manual.
2. Remove the four (4) beveled hex nuts that secures the drive wheel assembly to one
of the following: drive wheel hub, GB motor spacer or adapter plate with studs.
3. Remove existing drive wheel assembly from wheel hub.
INSTALLING
1. Reinstall new/existing drive wheel assembly to one (1) of the following: drive wheel
hub, GB motor spacer or adapter plate with studs and torque the four (4) beveled
hex nuts to 160-inch pounds.
2. Repeat procedure for opposite side of wheelchair, if necessary.
WHEELS/MOTORS
3. Reinstall the battery boxes. Refer to REMOVING/INSTALLING BATTERY BOXES in
SECTION 9 of this manual.
CONVENTIONAL MOTOR
WITH GEARBOX
WHEELS/MOTORSSECTION 12
14 X 3-INCH WHEEL
GEARLESS/BRUSHLESS MOTOR
G/B Motor
Drive Wheel
Assembly
Four (4) Beveled Hex Nuts
Motor/Gearbox
Drive Wheel
Assembly
Assembly
Motor/Gearbox
Assembly
Drive Wheel
Hub
14 X 4-INCH WHEEL
Drive Wheel
Assembly
WHEELCHAIRS BUILT
BEFORE 1/26/04 ONLY
Drive Wheel
Assembly
Drive Wheel
Hub
GB Motor
Spacer
Four (4) Beveled Hex Nuts
G/B Motor
Drive Wheel
Hub
Four (4) Beveled Hex Nuts
Four (4) Beveled Hex Nuts
Adapter Plate
With Studs
FIGURE 1 - REMOVING/INSTALLING DRIVE WHEELS
3G Storm Series® Wheelchairs 84 Part No. 1104849
Page 85
WHEELS/MOTORS SECTION 12
REMOVING/INSTALLING DRIVE WHEEL HUB (FIGURE 2)
REMOVING
1. Remove the drive wheel from the wheelchair. Refer to REMOVING/INSTALLING
DRIVE WHEELS in this section of the manual.
2. Remove the locknut, washer, keystock and existing drive wheel hub from the drive
shaft of the motor/gearbox assembly.
INSTALLING
1. Position the keystock on the drive shaft of the motor/gearbox assembly.
CAUTION
DO NOT apply more than a 1-inch (in length) thin film of anti-seize
compound to the drive shaft. Applying more than 1-inch (in length) can
cause the anti-seize compound to leak resulting in damage to flooring
(carpet, tile, etc.).
2. Apply a thin film of anti-seize compound 1-inch in length to the end of the drive shaft.
WHEELS/MOTORS
3. Reinstall drive wheel hub onto the drive shaft of the motor/gearbox assembly.
NOTE: While installing the drive wheel hub onto the drive shaft, spin the drive wheel hub to
evenly distribute the anti-seize compound over the entire drive shaft.
4. Reinstall the washer and locknut and torque locknut to 45 ft-lbs (540 in-lbs).
5. Reinstall the drive wheel assembly to the wheelchair. Refer to REMOVING/INSTALLING
DRIVE WHEELS in this section of the manual.
6. Repeat procedure for the opposite side of the wheelchair, if necessary.
14 X 3-INCH WHEEL14 X 4-INCH WHEEL
Motor/Gearbox
Assembly
Keystock
Drive Wheel
Hub
Motor
Gearbox
Drive Wheel
Hub
Washer
Locknut
Washer
Locknut
FIGURE 2 - REMOVING/INSTALLING DRIVE WHEEL HUB
Part No. 1104849 85 3G Storm Series® Wheelchairs
Page 86
WHEELS/MOTORSSECTION 12
REMOVING/INSTALLING GB MOTOR SPACER (FIGURE 3)
REMOVING
1. Remove the drive wheel from the wheelchair. Refer to REMOVING/INSTALLING
DRIVE WHEELS in this section of the manual.
2. Remove the four (4) locknuts that secure the GB motor spacer to the GB motor.
INSTALLING
1. Secure the new/existing GB motor
spacer to the GB motor with the
existing four (4) locknuts. Tighten
locknuts to 160 in-lbs.
WHEELS/MOTORS
2. Reinstall the drive wheel onto the
wheelchair. Refer to
INSTALLING DRIVE WHEELS in this
section of the manual.
REMOVING/INSTALLING THE ADAPTER PLATE WITH
STUDS (FIGURE 4)
REMOVING
1. Remove the drive wheel from the wheelchair. Refer to REMOVING/INSTALLING
DRIVE WHEELS in this section of the manual.
2. Remove the four (4) locknuts that secures the adapter plate with studs to the GB
motor.
GB Motor
Four (4)
Locknuts
REMOVING/
GB Motor
Spacer
FIGURE 3 - REMOVING/
INSTALLING GB MOTOR SPACER
INSTALLING
1. Secure the new/existing adapter plate
Four (4) Beveled
Hex Nuts
GB Motor
with studs to the GB motor with the
existing four (4) locknuts. Tighten
locknuts to 160 in-lbs.
2. Reinstall the drive wheel onto the
wheelchair. Refer to REMOVING/
INSTALLING DRIVE WHEELS in this
section of the manual.
Adapter Plate
With Studs
FIGURE 4 - REMOVING/
INSTALLING THE ADAPTER
PLATE WITH STUDS
3G Storm Series® Wheelchairs 86 Part No. 1104849
Page 87
SECTION 12WHEELS/MOTORS
INSTALLING WHEEL LOCK BRACKET ONTO WHEELCHAIR
(FIGURE 5)
NOTE: This SECTION only pertains to wheelchairs with the conventional motor and gearbox.
On wheelchairs with the gearless/brushless motor, the wheel lock bracket is not required.
1. Remove the two (2) mounting screws closest to the large wheel that secure the
gearbox to the suspension arm.
2. Line up mounting holes in the wheel lock mounting bracket with the gearbox
mounting holes in the suspension arm.
3. Apply Loctite 242 to the two (2) mounting screws.
4. Reinstall the two (2) mounting screws into the mounting holes of the wheel lock
mounting bracket and gear box and torque to 75 in-lbs.
5. Repeat STEPS 1-4 for opposite wheel lock bracket.
WHEELS/MOTORS
6. Adjust the wheel locks. Refer to
ADJUSTING WHEEL LOCKS in SECTION 9 of the
Owner’s Manual, part number 1104782 or 1123757.
Mounting
Screws
Gearbox
Wheel Lock
Mounting
Bracket
Suspension
Arm
FIGURE 5 - INSTALLING WHEEL LOCK BRACKET ONTO WHEELCHAIR
Part No. 1104849 87 3G Storm Series® Wheelchairs
Page 88
WHEELS/MOTORSSECTION 12
REMOVING/INSTALLING THE RIM AND/OR TIRE (FIGURE 6)
NOTE: This procedure is for wheelchairs equipped with heavy duty gearless/brushless motors
before 1/26/04 and standard gearless/brushless motors after 1/25/04.
REMOVING
1. Remove the battery boxes. Refer to REMOVING/INSTALLING BATTERY BOXES
in SECTION 9 of this manual.
WARNING
If wheelchair is equipped with pneumatic tires, deflate tire BEFORE
removing rim - otherwise serious personal injury and damage will result.
WHEELS/MOTORS
2. If the wheelchair is equipped with pneumatic tires, deflate the tire.
3. Remove the five (5) mounting screws that secure the rim to the gearless/brushless
motor.
4. Remove the rim and tire from the gearless/brushless motor.
INSTALLING
1. Perform one (1) of the following:
A. Pneumatic Tires - Secure new/existing rim and new/existing pneumatic tire
[w/ new tube (if applicable)] to the gearless/brushless motor and torque the five
(5) mounting screws to 160 in-lbs.
B. Flat Free Tires
NOTE: In order to install the tire with flat free properly, the tire must be compressed to a
certain point to allow the use of the 16 mm length mounting screws. This is accomplished by
first using three (3) 25 mm length mounting screws threaded in every other mounting hole. The
longer mounting screws are not to be threaded completely into the GB motor. They are to be
threaded 1/4-inch only to provide compression of the tire.
DETAIL “A”
Tire
Gearless/
Brushless
Motor
M8-1-1/4-25mm
Mounting Screw
Five (5)
M8-1-1/4-16mm
Mounting Screws
Rim
FIGURE 6 - REMOVING/INSTALLING THE RIM AND/OR TIRE
3G Storm Series® Wheelchairs 88 Part No. 1104849
Page 89
SECTION 12WHEELS/MOTORS
B. Secure new/existing rim and new/existing tire with flat free to gearless/brushless
motor with the three (3) M8 x 1-1/4 x 25 mm mounting screws (not provided).
See DETAIL “A” in FIGURE 6.
NOTE: Once all three (3) mounting screws are in place, install one (1) shorter mounting screw
in each of the two (2) remaining mounting holes. Remove one (1) longer mounting screw at a
time and replace with the existing M8 x 1-1/4 x 16 mm length mounting screws. Torque all
five (5) mounting screws to 160 in-lbs.
2. Reinstall battery boxes. Refer to REMOVING/INSTALLING BATTERY BOXES in
SECTION 9 of this manual.
3. If wheelchair is equipped with pneumatic tires, inflate tire to proper tire pressure
located on the side wall of the tire.
REMOVING/INSTALLING CASTERS (FIGURE 7)
WARNING
DO NOT use your power wheelchair unless it has the proper tire
pressure (p.s.i.). DO NOT over-inflate the tires. Failure to follow these
suggestions may cause the tire to explode and cause bodily harm. The
recommended tire pressure is listed on the side wall of the tire.
WHEELS/MOTORS
Periodically, the tires will need to be replaced due to wear or puncture.
REMOVING CASTERS
1. Remove the mounting screw, washers, spacers and locknut that secure the caster to
the fork.
2. Remove the existing caster from the fork.
8-inch Caster
Mounting Hole
Spacer
Washer
SHOCK FORK
8-INCH FORK
Locknut
HARDWARE ORIENTATION
Fork
(Reference)
Washer
Washer
Locknut
Mounting
Screw
Washer
Spacer
Mounting
Screw
Spacer
Spacer
FIGURE 7 - REMOVING/INSTALLING CASTERS
Part No. 1104849 89 3G Storm Series® Wheelchairs
Page 90
SECTION 12 WHEELS/MOTORS
INSTALLING CASTERS
1. Position the caster into the fork.
2. Reinstall the mounting screw, washers, spacers and locknut that secure the caster to the
fork.
3. Torque locknut to 10 ft-lbs (120 in-lbs).
4. Loosen the locknut 1/8 of a turn.
5. Move the caster side to side.
NOTE: If the caster moves side to side, tighten the locknut slightly.
REPLACING FORKS (FIGURE 8)
WHEELS/MOTORS
1. Remove the caster from the existing fork. Refer to REMOVING/INSTALLING
CASTERS in this section of the manual.
2. Remove the dust cover.
3. Remove the locknut, nylon washer, and spacer.
4. Drop the existing fork out of the caster head tube and spacer.
5. Slide the new fork into the spacer and caster head tube.
NOTE: Check bearing assemblies. Replace if necessary.
6. Ensure new fork slides completely into caster headtube.
7. Install spacer, nylon washer and secure with locknut.
WARNING
Improper positioning of the washer will prohibit the free movement of
the forks.
8. Install the caster onto the new fork.
Dust Cover
Refer to REMOVING/INSTALLING
CASTERS in this section of the manual.
Locknut
9. Adjust the forks. Refer to ADJUSTING
FORKS in SECTION 9 of the Owner’s
Spacer
Manual, part number 1104782 or
1123757.
Headtube
Washer
Caster
Spacer
Fork
FIGURE 8 - REPLACING FORKS
3G Storm Series® Wheelchairs 90 Part No. 1104849
Page 91
SECTION 12WHEELS/MOTORS
REMOVING/INSTALLING THE MOTOR
CONVENTIONAL MOTOR WITH GEARBOX (FIGURE 9)
Removing.
1. Disconnect the right and/or left motor connector from the controller.
2. Remove the two (2) allen screws and washers that secure the motor to the gearbox.
CAUTION
DO NOT damage the motor/gearbox coupling.
3. Carefully pull the motor away from the gearbox.
Installing.
1. Perform the following:
A. Inspect the coupling for wear and
damage. If damage is evident,
replace coupling.
B. Install coupling onto gearbox input
shaft inserting coupling drive plate
onto slot on shaft.
C. Carefully align motor and coupling
and place motor against gearbox.
Motor Connector
Motor
Coupling
Motor
Connector
WHEELS/MOTORS
D. With motor against gearbox, turn
gearbox drive shaft until the
coupler seats into gearbox.
NOTE: When properly aligned, motor will be
seated into gearbox.
E. Install two (2) allen screws.
Use Loctite 242, tighten allen
screws evenly and then torque to
75 in-lbs.
2. Reconnect right/left motor connector
to controller.
Allen
Gearbox
Screw
Washer
Slots*
*NOTE: The slots on coupling of motor, the
slots on the coupling and the slots on the
gearbox must line up for proper installation
FIGURE 9 - REMOVING/
INSTALLING THE MOTOR -
CONVENTIONAL MOTOR/
GEARBOX
Part No. 1104849 91 3G Storm Series® Wheelchairs
Page 92
SECTION 12 WHEELS/MOTORS
STANDARD GEARLESS/BRUSHLESS MOTOR BEFORE 1/26/04
(FIGURE 10)
Removing.
1. Remove the battery boxes. Refer to
SECTION 9 of this manual.
2. Unthread the mounting screws that secure the wiring harness connector to the motor.
3. Unplug the wiring harness connector from the motor.
4. If necessary, remove the 22NF battery box tray. Refer to REMOVING/INSTALLING
22NF BATTERY BOX TRAY in SECTION 15 of this manual.
5. Remove the drive wheel from the wheelchair. Refer to REMOVING/INSTALLING
WHEELS/MOTORS
DRIVE WHEELS in this section of the manual.
6. Note the mounting position of the motor on the suspension arm before removing the motor.
7. Loosen adjustment screw that secures the motor lock lever in place on the brake release shaft.
NOTE: Alignment pin is located inside of bushing guide on the suspension arm.
8. Remove the mounting screw and washer that secure the alignment pin in place.
REMOVING/INSTALLING BATTERY BOXES in
9. Slide the alignment pin back out of the end of the motor lock lever.
10. Remove the four (4) mounting screws and washers that secure the motor to the
suspension arm.
11. Remove motor with motor lock lever from suspension arm.
12. If replacing motor, remove the motor lock lever from the brake release shaft of the
existing motor.
Installing.
NOTE: Do not tighten adjustment screw of motor lock lever until motor is secured in place on
the suspension arm.
1. If necessary, install motor lock lever onto new brake release shaft of motor.
2. Position the new/existing motor with motor lock lever onto the suspension arm in
the mounting position noted from STEP 5 of
REMOVING THE STANDARD
GEARLESS/BRUSHLESS MOTOR in this section of the manual.
3. Secure motor to the suspension arm with existing four (4) mounting screws.
Torque to 13 ft-lbs.
4. Slide the motor lock lever along brake release shaft until the end is flush with the
bushing guide.
5. Slide alignment pin, located inside of bushing guide, into the end of the motor lock
lever and secure in place with existing mounting screw and washer. Securely tighten.
6. Secure motor lock lever in place on the brake release shaft with existing mounting screw.
7. Install the drive wheel from the wheelchair. Refer to REMOVING/INSTALLING
DRIVE WHEELS in this section of the manual.
3G Storm Series® Wheelchairs 92 Part No. 1104849
Page 93
SECTION 12WHEELS/MOTORS
8. If necessary, install the 22NF battery box tray. Refer to REMOVING/INSTALLING
22NF BATTERY BOX TRAY in SECTION 15 of this manual.
9. Plug the wiring harness connector into the motor.
10. Secure the wiring harness connector to the motor with the existing two (2)
mounting screws.
11. Install the battery boxes. Refer to REMOVING/INSTALLING BATTERY BOXES in
SECTION 9 of this manual.
Brake Release Shaft
Guide Bushing
Motor
Suspension
Arm
*Alignment Pin
Washer
Mounting
Adjustment
Screw
Screw
Motor
Lock
Lever
WHEELS/MOTORS
Wiring Harness
Mounting
Screws
Connector
Washer
Washer
Mounting Screws
*NOTE: Alignment pin exploded away suspension arm for clarification purposes only.
FIGURE 10 - REMOVING/INSTALLING THE MOTOR - STANDARD
GEARLESS/BRUSHLESS MOTOR BEFORE 1/26/04
Mounting
Screws
Part No. 1104849 93 3G Storm Series® Wheelchairs
Page 94
SECTION 12 WHEELS/MOTORS
HEAVY DUTY GEARLESS/BRUSHLESS MOTOR (FIGURE 11)
Removing.
1. Remove the battery boxes. Refer to
SECTION 9 of this manual.
2. Unthread the mounting screws that secure the wiring harness connector (not
shown) to the motor.
3. Unplug the wiring harness connector (not shown) from the motor.
4. Remove the drive wheel from the wheelchair. Refer to REMOVING/INSTALLING
THE RIM AND/OR TIRES in this section of the manual.
5. Note the mounting position of the motor on the suspension arm before removing
WHEELS/MOTORS
the motor.
6. Remove the cotter pin from the motor lock lever rod.
7. Disengage motor lock lever rod from the brake release lever located on the
gearless/brushless motor.
8. Remove the two (2) upper mounting screws that secure the gearless/brushless
motor, fender bracket and spacer to the suspension arm.
REMOVING/INSTALLING BATTERY BOXES in
9. Remove the two (2) lower mounting screws and washers that secure the gearless/
brushless motor and spacer motor to the suspension arm.
10. Remove the gearless/brushless motor and fender bracket from the suspension arm.
Installing.
1. Position the new/existing motor onto the suspension arm in the mounting position
noted in STEP 5 of REMOVING THE MOTOR in the procedure above.
2. Re-position the fender bracket on the suspension arm.
3. Secure the gearless/brushless motor, spacer and fender bracket to the suspension
arm with existing two (2) upper mounting screws, two (2) lower mounting screws
and two (2) washers. Torque all four (4) mounting screws to 13 ft-lbs.
4. Engage the motor lock lever rod to the brake release lever on the motor and secure
with the existing cotter pin.
5. Install the drive wheel to the wheelchair. Refer to REMOVING/INSTALLING THE
RIM AND/OR TIRES in this section of the manual.
6. Plug the wiring harness connector (not shown) to the motor.
7. Re-thread the mounting screws that secure the wiring harness connector (not
shown) to the motor.
8. Install the battery boxes. Refer to REMOVING/INSTALLING BATTERY BOXES in
SECTION 9 of this manual.
3G Storm Series® Wheelchairs 94 Part No. 1104849
Page 95
Upper Mounting
Lower Mounting
Screws
Suspension
Screws
Washers
Arm
Gearless/Brushless
Fender Bracket
SECTION 12WHEELS/MOTORS
Motor Lock
Lever Rod
Cotter Pin
WHEELS/MOTORS
Gearless/
Brushless
Motor
Motor Lock
Lever
WIRING HARNESS FROM CONTROLLER
CONNECTS TO THE MOTOR HERE
Spacers
Brake
Release
Lever
FIGURE 11 - REMOVING/INSTALLING THE MOTOR - HEAVY-DUTY
GEARLESS/BRUSHLESS MOTOR
Part No. 1104849 95 3G Storm Series® Wheelchairs
Page 96
SECTION 12 WHEELS/MOTORS
INSTALLING/REMOVING FENDERS
4 POLE MOTORS (FIGURE 12)
Installing.
1. Remove the drive wheel. Refer to REMOVING/INSTALLING THE DRIVE WHEELS
in this section of the manual.
NOTE: When performing STEPS 2 and 3, only the two (2) mounting screws on the side of the
suspension arm where the drive wheel mounts need to be removed in order to install the fender.
2. Remove the LONGER mounting screw that secures the rear of motor/gearbox to
the suspension arm.
3. Remove the SHORTER mounting screw and lock washer (if applicable) that secures
the rear of motor/gearbox to the suspension arm.
WHEELS/MOTORS
The longer mounting screws MUST be used to secure the REAR of the
gearbox to the suspension arm and the SHORTER mounting screws
MUST be used to secure the FRONT of the gearbox to the suspension
arm - otherwise, damage to the gearbox casting can result.
CAUTION
4. Secure the rear of 4 pole fender bracket to the suspension arm and motor/gearbox,
in the orientation shown, using the LONGER mounting screw removed in STEP 2.
Torque mounting screw to 160 in-lbs.
5. Secure the front of 4 pole fender bracket to the suspension arm and motor/gearbox,
in the orientation shown, using the SHORTER mounting screw and lock washer (if
applicable) removed in STEP 3. Torque mounting screw to 160 in-lbs.
6. Secure the fender and spacer to the 4 pole fender bracket, in the orientation shown,
with two (2) pan head tap screws provided. Securely tighten.
7. Reinstall the drive wheel. Refer to REMOVING/INSTALLING THE DRIVE WHEELS
in this section of the manual.
LONGER
Mounting Screw
Fender
SHORTER
Mounting Screw
Lock Washer
(if applicable)
4 pole
Fender Bracket
Suspension
Arm
Spacer
Pan Head
Tap Screws
FIGURE 12 - INSTALLING/REMOVING FENDERS -
4 POLE MOTORS
3G Storm Series® Wheelchairs 96 Part No. 1104849
Page 97
SECTION 12WHEELS/MOTORS
Removing.
1. Remove the drive wheel. Refer to
REMOVING/INSTALLING THE DRIVE WHEELS
in this section of the manual.
NOTE: When performing STEPS 2 and 3, only the two (2) mounting screws on the side of the
suspension arm where the drive wheel mounts need to be removed in order to remove the fender.
2. Remove the LONGER mounting screw that secures the rear of motor/gearbox to
the suspension arm.
3. Remove the SHORTER mounting screw and lock washer (if applicable) that secures
the rear of motor/gearbox to the suspension arm.
CAUTION
The longer mounting screws MUST be used to secure the REAR of the
gearbox to the suspension arm and the SHORTER mounting screws
MUST be used to secure the FRONT of the gearbox to the suspension
arm - otherwise, damage to the gearbox casting can result.
4. Secure the rear of the suspension arm to the motor/gearbox using the LONGER
mounting screw removed in STEP 2. Torque mounting screw to 160 in-lbs.
WHEELS/MOTORS
5. Secure the front of the suspension arm to the motor/gearbox using the SHORTER
mounting screw and lock washer (if applicable) removed in STEP 3. Torque mounting
screw to 160 in-lbs.
6. Reinstall the drive wheel. Refer to REMOVING/INSTALLING THE DRIVE WHEELS
in this section of the manual.
Part No. 1104849 97 3G Storm Series® Wheelchairs
Page 98
SECTION 12 WHEELS/MOTORS
STANDARD GEARLESS/BRUSHLESS MOTORS BEFORE 1/26/04
(FIGURE 13)
Installing.
1. Remove the drive wheel. Refer to
in this section of the manual.
2. Remove two (2) top mounting screws and flat washers (not shown) that secure the
gearless/brushless motor to the suspension arm. Discard flat washers.
3. Secure the gearless/brushless fender bracket to the suspension arm, in the
orientation shown, using the two (2) mounting screws removed in STEP 2. Torque
mounting screws to 160 in-lbs.
WHEELS/MOTORS
4. Secure the fender and spacer to the gearless/brushless fender bracket, in the orientation shown, with the two (2) pan head tap screws provided. Securely tighten.
REMOVING/INSTALLING THE DRIVE WHEELS
5. Reinstall the drive wheel. Refer to
REMOVING/INSTALLING THE DRIVE WHEELS
in this section of the manual.
Removing.
1. Remove the drive wheel. Refer to REMOVING/INSTALLING THE DRIVE WHEELS
in this section of the manual.
2. Remove two (2) top mounting screws that secure the fender bracket and gearless/
brushless motor to the suspension arm.
3. Secure the gearless/
brushless motor and two
(2) flat washer to the
suspension arm using the
Gearless/Brushless
Fender Bracket
Two (2) Top
Mounting Screws
two (2) exisiting mounting
screws. Torque mounting
screws to 160 in-lbs.
Fender
4. Reinstall the drive wheel.
Refer to REMOVING/
INSTALLING THE DRIVE
WHEELS in this section of
the manual.
Pan Head
Tap Screws
Spacer
Suspension Arm
FIGURE 13 - INSTALLING/REMOVING
FENDERS - STANDARD GEARLESS/
BRUSHLESS MOTORS BEFORE 1/26/04
3G Storm Series® Wheelchairs 98 Part No. 1104849
Page 99
SECTION 12WHEELS/MOTORS
HEAVY DUTY GEARLESS/BRUSHLESS MOTORS (FIGURE 14)
Installing.
1. Remove the rim and tire from the heavy duty gearless/brushless motor. Refer to
REMOVING/INSTALLING THE RIM AND/OR TIRE in this section of the manual.
2. Remove two (2) top mounting screws and flat washers (not shown) that secure the
gearless/brushless motor to the suspension arm. Discard flat washers.
3. Secure the fender bracket to the suspension arm, in the orientation shown, using the
two (2) mounting screws removed in STEP 2. Torque mounting screws to 160 in-lbs.
4. Secure the fender and spacer to the fender bracket, in the orientation shown, with the
two (2) pan head tap screws provided. Securely tighten.
5. Reinstall rim and tire to the gearless/brushless motor. Refer to REMOVING/
INSTALLING THE RIM AND/OR TIRE in this section of the manual.
Removing.
1. Remove the rim and tire from the heavy duty gearless/brushless motor. Refer to
REMOVING/INSTALLING THE RIM AND/OR TIRE in this section of the manual.
2. Remove two (2) top mounting screws that secure the fender bracket and gearless/
brushless motor to the suspension arm.
WHEELS/MOTORS
3. Remove the fender bracket.
4. Secure the gearless/brushless motor to the suspension arm with two (2) flat washers and
two (2) existing mounting screws. Torque
mounting screws to 160 in-lbs.
5. Reinstall rim and tire to the gearless/
Gearless/Brushless
Fender Bracket
Two (2) Top
Mounting Screws
brushless motor. Refer to REMOVING/
INSTALLING THE RIM AND/
OR TIRE in this section of
the manual.
Pan Head
Tap Screws
Fender
Suspension
Arm
Fender
Spacer
FIGURE 14 - INSTALLING/REMOVING FENDERS -
HEAVY DUTY GEARLESS/BRUSHLESS MOTORS
Part No. 1104849 99 3G Storm Series® Wheelchairs
Page 100
SECTION 13 ELECTRONICS
This Section Includes the Following:
Repositioning MKIV Joystick - Van Seat Models
Removing/Installing the MKIV Controller
After ANY adjustments, repair or service and BEFORE use, make sure
that all attaching hardware is tightened securely - otherwise injury or
damage may result.
REPOSITIONING MKIV JOYSTICK - VAN SEAT MODELS
ELECTRONICS
(FIGURE 1)
1. Turn the lever on the adjustment lock to release the adjustment lock from joystick
mounting tube.
2. Remove the joystick mounting tube from wheelchair.
3. Remove the three (3) hex bolts, spacers and locknuts that secure joystick mounting
bracket to armrest plate.
WARNING
4. Remove the phillips screws that secures the front of the armrest pad to the armrest plate.
5. Remove the phillips screw that secures the rear of the armrest pad and armrest
insert to the armrest plate.
6. Remove the armrest pad from the armrest plate.
7. Remove the lug bolt, washers and locknut that secure the existing armrest plate to
the armrest weldment.
8. Repeat STEPS 4-7 for opposite
side of the wheelchair.
9. Position armrest plate with
joystick mounting holes on
desired side of armrest weldment
and secure with lug bolt, washers
and locknut. Refer to FIGURE 1
for correct hardware orientation.
10. Position armrest plate without
joystick mounting holes on
opposite side of the armrest
weldment and secure with lug
bolt, washers and locknut.
Refer to FIGURE 1 for correct
hardware orientation.
Armrest Insert
Phillips Screw
(STEPS 5, 13)
Locknut
(STEPS 7, 9)
(STEPS 7, 9)
Hex Bolts
(STEPS 3, 16)
Joystick Mounting
Bracket
(STEPS 3, 16)
Washer
Armrest Plate
Washers
(STEPS 7, 9)
Lug Bolt (STEPS 7, 9)
Locknuts
(STEPS 3,16)
Armrest Pad
Phillips
Screws
(STEPS 4,
Armrest
Weldment
14)
Spacers
(STEPS 3, 16)
FIGURE 1 - REPOSITIONING MKIV
JOYSTICK - VAN SEAT MODELS
3G Storm Series® Wheelchairs 100 Part No. 1104849
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