Invacare RWD R2BASIC, RWD R2STANDARD, RWD R2250-S User Manual

Owner's Operator And Maintenance Manual

Ranger II Storm Series

Wheelchairs

RWD

®

R2

BASIC

R2

STANDARD

R2

250-S

DEALER: THIS MANUAL MUST BE GIVEN TO THE USER
OF THE WHEELCHAIR.

USER: BEFORE USING THIS WHEELCHAIR, READ THIS
MANUAL AND SAVE FOR FUTURE REFERENCE.

WARNING

WARNING

DO NOT OPERATE THIS EQUIPMENT WITHOUT FIRST READING

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AND UNDERSTANDING THIS MANUAL. IF YOU ARE UNABLE TO

UNDERSTAND THE WARNINGS, CAUTIONS, AND

INSTRUCTIONS, CONTACT A HEALTHCARE PROFESSIONAL,

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DEALER OR TECHNICAL PERSONNEL IF APPLICABLE BEFORE

A TTEMPTING TO USE 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.

WHEELCHAIR TIE-DOWN RESTRAINTS AND 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.

AS REGARDS RESTRAINTS - SEAT POSITIONING STRAPS - IT IS THE OBLIGATION OF THE DME DEALER,
THERAPISTS AND OTHER HEALTH CARE PROFESSIONALS TO DETERMINE IF A SEAT POSITIONING STRAP
IS REQUIRED TO ENSURE THE SAFE OPERATION OF THIS EQUIPMENT BY THE USER. SERIOUS INJURY
CAN OCCUR IN THE EVENT OF A FALL FROM A WHEELCHAIR.

SAVE THESE INSTRUCTIONS

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TABLE OF CONTENTS

The following procedures refer to

SPECIAL NOTES ............................................... 2

SPECIFICA TIONS............................................... 4

PROCEDURE 1 - GENERAL GUIDELINES ........... 5

REPAIR OR SERVICE INFORMATION ............... 5

OPERATING INFORMATION ............................. 5

SAFETY/HANDLING OF WHEELCHAIRS ........... 6

PROCEDURE 2 - SAFETY INSPECTION

CHECKLIST/TROUBLESHOOTING..................11

SAFETY INSPECTION CHECKLIST .................. 11

TROUBLESHOOTING - MECHANICAL .............12

TROUBLESHOOTING - ELECTRICAL ..............12

CHECKING BATTERY CHARGE LEVEL ............12

MOTOR TESTING ...........................................14

MOTOR BRUSH INSPECTION .........................15

MOTOR LOCK TESTING .................................15

PROCEDURE 3 - ASSEMBL Y/TRANSPORTING ... 16

ASSEMBLING/TRANSPORTING ......................16

PROCEDURE 4 - FRONT RIGGINGS ..................17

INSTALLING/REMOVING FOOTRESTS ............17

ADJUSTING FOOTREST HEIGHT ....................17

REPLACING HEEL LOOPS .............................. 18

INSTALLING/REMOVING ELEVATING

LEGRESTS ................................................. 18

RAISING/LOWERING ELEVATING LEGRESTS

AND/OR ADJUSTING CALFPADS .................19

ADJUSTING/REPLACING TELESCOPING

FRONT RIGGING SUPPORT .......................19

PROCEDURE 5 - ARMS ....................................20

ADJUSTING ARMREST HEIGHT, REMOVING

OR REPLACING ARMRESTS ....................... 20

INSTALLING/REMOVING FLIP BACK

ARMRESTS - NON-RECLINER WHEELCHAIRS

BUILT AFTER 10/2000 ONLY .......................20

ADJUSTING FLIP BACK ARMRESTS

- NON-RECLINER WHEELCHAIRS BUILT

AFTER 10/2000 ONLY .................................21

PROCEDURE 6 - UPHOLSTERY/

POSITIONING STRAP .................................22

REPLACING SEAT UPHOLSTERY ...................22

REPLACING SEAT POSITIONING STRAP ........ 22

REPLACING BACK UPHOLSTERY ...................22

PROCEDURE 7 - FRAME...................................25

ADJUSTING SEAT WIDTH ............................... 25

ADJUSTING SEAT DEPTH ...............................26

INSTALLING BACK ASSEMBLY

- WHEELCHAIRS BEFORE 10/2000 ONLY .. 26

CHANGING BACK HEIGHT ..............................27

CHANGING BACK ANGLE ............................... 29

REPLACING BACK CANES - WHEELCHAIRS

AFTER 10/2000 ONLY .................................30

R2

STANDARD

, R2

BASIC

T ABLE OF CONTENTS

and R2

except where specified.

250-S

PROCEDURE 8 - BA TTERIES ............................32

INSTALLING/REMOVING BATTERIES

INTO/FROM BATTERY BOXES .................... 32

CONNECTING BATTERY CABLES .................32

WHEN TO CHARGE BATTERIES .....................37

CHARGING BATTERIES ..................................37

REPLACING BATTERIES ................................. 38

INSTALLING/REMOVING BATTERY TRAY ........39

INSTALLING/REMOVING BATTERY BOXES .....39

PROCEDURE 9 - ELECTRONICS .......................40

PREPARING MKIV JOYSTICK FOR USE ...........40

DISCONNECTING/CONNECTING MKIV

CONTROLLER MOTOR AND BATTERY

LEADS ........................................................40

REPOSITIONING MKIV JOYSTICK ...................40

REMOVING/INSTALLING MKIV

CONTROLLER ............................................41

PROCEDURE 10 - RET AINING STRAP ...............42

REPLACING BATTERY BOX RETAINING

STRAP .......................................................42

PROCEDURE 11 - WIRING HARNESS ................43

REPLACING WIRING HARNESS ...................... 43

PROCEDURE 12 - WHEELS/ANTI-TIPPER ..........44

DISENGAGING/ENGAGING MOTORS

WITH MOTOR LOCKS ................................44

DISENGAGING/ENGAGING MOTORS

WITH CLUTCHES.......................................44

USING/INSTALLING/ADJUSTING WHEEL

LOCKS .......................................................45

REPLACING PNEUMATIC TIRES AND TUBES -

FRONT CASTERS AND REAR WHEELS ......46

INSTALLING/REPLACING REAR WHEELS .......46

INSTALLING/REPLACING FRONT CASTERS ....47

REPLACING FRONT FORK .............................47

INSTALLING/REMOVING ANTI-TIPPERS ..........47

INSTALLING OPTIONAL CLUTCH

EXTENSION HANDLES - MOTORS

WITH CLUTCHES ONLY .............................48

PROCEDURE 13 - MOTOR/GEARBOX ...............49

REPLACING MOTOR/GEARBOX ..................... 49

PROCEDURE 14 - RECLINER ............................50

RECLINER OPERATION ..................................50

REPLACING BACK OR HEADREST

UPHOLSTERY ............................................50

ADJUSTING BACK OR HEADREST

UPHOLSTERY ............................................51

REPLACING LIMIT SWITCH/ACTUATOR .......... 51

ADJUSTING LIMIT SWITCH .............................52

REPLACING RECLINER CABLE

ASSEMBLIES .............................................52

REPLACING/ADJUSTING GAS CYLINDERS .....53

CHANGING BACK HEIGHT ..............................55

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LIMITED WARRANTY ..................... BACK COVER

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SPECIFICATIONS

NOTE: All specifications are
approximate.

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Seat Width Range:
Seat Depth Range:

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Back Height Range:
Back Angle Range:

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Seat-to-Floor:
Overall Width (No joystick):

Overall Height:
Overall Length (with 93

front riggings):
* Weight

W/O Batteries:
W/ Batteries (Gel Cell):
Shipping:

Rear Wheels/Tires:
(Foam Filled or Pneumatic)

Casters w/Precision Sealed
Bearings:

Anti-Tippers:
Footrest:
Armrests:

Upholstery:
Battery/Size (Not Supplied)

(T wo (2) Required):

SPECIFICATIONS

RANGER II STORM SERIES

R2

250-S

16, 18 or 20-in.
16, 17 or 18-in.

(17 and 18-inch by extension)
16, 17, 18, 19 or 20-in.
90o to 105o - in 5o increments

18-in.
24-5/8 to 26-1/2-in.

34-3/4 to 38-3/4-in.

42 to 44-3/4-inches (16-inch seat depth)

94 lbs.

145 lbs.

128-133 lbs.

12-1/2 x 2-1/4 inches

8 x 1-3/4-inches Semi Pneumatic

Rotating, Removable
Swingaway, Removable
Flip Back Arms - Fixed (Std) or Adjustable

(Opt) Height - Desk or Full Length
Black Nylon

U1

R2

ADUL T FRAME LOW FRAME

14, 16, 18 or 20-in. 16, 18 or 20-in.

16, 17 or 18-in.
(17 and 18-inch by extension)

16, 17, 18, 19 or 20-in.
90o to 105o - in 5o increments

ADUL T FRAME LOW FRAME

20-1/4-in. 18-in.

24-5/8 to 26-1/2-in.

ADUL T FRAME LOW FRAME

36 to 40-in. 34-3/4 to 38-3/4-in.

42 to 44-3/4-inches (16-inch seat depth)

BASIC ST ANDARD

94 lbs. 101 lbs.
169-159 lbs. 176-166 lbs.
128-133 lbs. 135-140 lbs.

12-1/2 x 2-1/4 inches

8 x 1-3/4-inches Semi Pneumatic (Std)
8 x 2-inches Pneumatic (Opt)

Rotating, Removable
Swingaway, Removable
Flip Back Arms - Fixed (Std) or Adjustable (Opt)

Height - Desk or Full Length
Black Nylon
14-inch Width - U1

16, 18 and 20-inch Widths - 22NF

BASIC

and R2

STANDARD

* NOTE: 18-inch wide x 16-inch deep wheelchair with MKIV RII electronics.

Performance

R2

250-S

Speed (M.P.H.):
** Range (variable):

*** Weight Limitation:

0 to 3.6
12-14 miles

250 lbs.

0 to 4.5
12-14 miles - U1 batteries
18-22 miles- 22NF batteries
250 lbs.

**NOTE: Range will vary with battery conditions, surface, terrain and operators weight.
***NOTE: Includes seating systems and accessories.

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R2

BASIC

0 to 5.5
12-14 miles - U1 batteries
18-22 miles- 22NF batteries
300 lbs.

R2

STANDARD

GENERAL GUIDELINES PROCEDURE 1

This Procedure Includes the Following:
Repair or Service Information
Operating Information
Safety/Handling of Wheelchairs

REPAIR OR SERVICE INFORMATION
Set-up of the Electronic Control Unit is to be performed ONLY by qualified technicians. The final tuning

adjustments of the controller may affect other activities of the wheelchair. Damage to the equipment
could occur under these circumstances. If any individual other than a qualified technician performs
any work on these units, the warranty is void.

OPERATING INFORMATION

GENERAL WARNINGS

Performance adjustments should only be made by professionals of the healthcare field or persons fully
conversant with this process and the driver's capabilities. Incorrect settings could cause injury to the
driver, bystanders, damage to the chair and to surrounding property.

After the wheelchair has been set-up, check to make sure that the wheelchair performs to the speci­fications entered during the set-up procedure. If the wheelchair does NOT perform to specifications,
turn the wheelchair OFF immediately and reenter set-up specifications. Repeat this procedure until the
wheelchair performs to specifications.

DO NOT shift your weight or sitting position toward the direction you are reaching as the wheelchair
may tip over.

DO NOT engage or disengage the motor locks/clutches until the power is in the OFF position.
Wheel locks are an OPTION on this wheelchair, (you may order with or without wheel locks). Invacare

strongly recommends ordering the wheel locks as an additional safeguard for the wheelchair user.
Transfer to and from the wheelchair in the presence of a qualified healthcare professional to deter­mine individual safety limits.

DO NOT operate on roads, streets or highways.

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DO NOT climb, go up or down ramps or traverse slopes greater than 9
DO NOT attempt to move up or down an incline with a water, ice or oil film.
DO NOT attempt to drive over curbs or obstacles. Doing so may cause your wheelchair to turn over

and cause bodily harm or damage to the chair.
DO NOT use parts, accessories, or adapters other than those authorized by Invacare.
DO NOT leave the power button ON when entering or exiting your wheelchair.
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 footrests towards the outside of the chair.
ALWAYS wear your seat positioning strap.

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TIRE PRESSURE
DO NOT use your wheelchair unless it has the proper tire pressure (P.S.I.). DO NOT overinflate the tir es.

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.

ELECTRICAL
EXTREME care should be exercised when using oxygen in close proximity to electric cir cuits. Contact

your oxygen supplier for instruction in the use of oxygen.

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GENERAL GUIDELINESPROCEDURE 1

GENERAL WARNINGS (CONTINUED)

Grounding Instructions:

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DO NOT, under any circumstances, cut or remove the round gr ounding 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 ONL Y 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.

BA TTERIES
Only deep cycle, sealed case construction batteries should be used.

Carefully read battery/battery charger information prior to installing, servicing or operating your wheel­chair.

RAIN TEST
INV ACARE has tested it’s power wheelchairs in accordance with ISO 7176 Part 9 “Rain T est”. This pr ovides

the end user or his/her assistant sufficient time to remove his/her power wheelchair from a rain storm and
retain wheelchair operation.

DO NOT leave power wheelchair in a rain storm of any kind.
DO NOT use power wheelchair in a shower or leave it in a damp bathroom while taking a shower.
DO NOT leave power wheelchair in a damp area for any length of time.
Direct exposure to rain or dampness will cause the chair to malfunction electrically and mechanically;

may cause the chair to prematurely rust.
Check to ensure that the battery covers are secured in place, joystick boot is NOT torn or cracked where

water can enter and that all electrical connections are secure at all times.
DO NOT use the joystick if the boot is torn or cracked. If the joystick boot becomes torn or cracked,

replace IMMEDIA TELY.
WEIGHT TRAINING

Invacare DOES NOT recommend the use of its wheelchairs as a weight training apparatus. Invacare
wheelchairs have NOT been designed or tested as a seat for any kind of weight training. If occupant uses
said wheelchair as a weight training apparatus, INV ACARE SHALL NOT BE LIABLE FOR BODILY INJURY AND
THE W ARRANTY IS VOID.

WEIGHT LIMIT ATION
The R2
The R2

has a weight limitation of 250 lbs. The R2

BASIC

has a weight limitation of 250 lbs.

250-S

SAFETY/HANDLING OF
WHEELCHAIRS

“Safety and Handling” of the wheelchair requires the close
attention of the wheelchair user as well as the assistant.
This manual points out the most common procedures
and techniques involved in the safe operation and main­tenance of the wheelchair. It is important to practice and
master these safe techniques until you are comfortable
in maneuvering around the frequently encountered ar­chitectural barriers.

STANDARD

has a weight limitation of 300 lbs.

Use this information only as a “basic” guide. The tech­niques that are discussed on the following pages have
been used successfully by many.

Individual wheelchair users often develop skills to deal with
daily living activities that may differ from those described in
this manual.

Invacare recognizes and encourages each individual to try
what works best for him/her in overcoming architectural
obstacles that they may encounter, however, ALL WARN­INGS and CAUTIONS given in this manual MUST be fol­lowed. Techniques in this manual are a starting point for
the new wheelchair user and assistant with “safety” as the
most important consideration for all.

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GENERAL GUIDELINES PROCEDURE 1

Stability and Balance

WARNING

AL WA YS wear your seat positioning strap.

To assure stability and proper operation of your wheel­chair, you must at all times maintain proper balance. Your
wheelchair has been designed to remain upright and
stable during normal daily activities as long as you do not
move beyond the center of gravity. DO NOT lean forward
out of the wheelchair any further than the length of the
armrests.

Coping With Everyday Obstacles

Coping with the irritation of everyday obstacles can be
alleviated somewhat by learning how to manage your
wheelchair. Keep in mind your center of gravity to main­tain stability and balance.

A Note to Wheelchair Assistants

When assistance to the wheelchair user is required, re­member to use good body mechanics. Keep your back
straight and bend your knees whenever tilting wheel­chair or traversing curbs, or other impediments.

WARNING

Proper positioning is essential for your safety. When
reaching, leaning, bending or bending forward,
it is important to use the rear casters as a tool to
maintain stability and balance.

Functional Reach From a Wheelchair

The approximate reach-limit values shown in the accompa­nying graphs were derived on the basis of a sample of 91
male and 36 female wheelchair users. Note the difference
between the maximum and the comfortable reach limits, a
subjective but important consideration in design.

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WARNING

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.

Also, be aware of detachable parts such as arms or leg­rests. These must NEVER be used for hand-hold or lift­ing supports, as they may be inadvertently released, re­sulting in possible injury to the user and/or assistant(s).

When learning a new assistance technique, have an ex­perienced assistant help you before attempting it alone.

Percentage of Weight Distribution

WARNING

DO NOT attempt to reach objects if you have to
move forward in the seat or pick them up from
the floor by reaching down between your knees.

Many activities require the wheelchair user to
reach, bend and transfer in and out of the wheel­chair. These movements will cause a change to
normal balance, center of gravity, and weight
distribution of the wheelchair. To determine and
establish your particular safety limits, practice
bending, reaching and transferring activities in
several combinations in the presence of a quali­fied healthcare professional BEFORE attempting
active use of the wheelchair.

Reaching, Leaning, Bending and Bending ­Forward

Position the rear casters so that they are extended as far
forward as possible and engage motor locks/clutches.

WARNING

DO NOT attempt to reach objects if you have
to move forward in the seat or pick them up
from the floor by reaching down between your
knees.

Reaching, Bending - Backward

WARNING

DO NOT lean over the top of the back uphol­stery. This will change your center of gravity
and may cause you to tip over.

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GENERAL GUIDELINESPROCEDURE 1

Position wheelchair as close as possible to the desired
object. Point rear casters rearward to create the longest

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possible wheelbase. Reach back only as far as your arm
will extend without changing your sitting position.

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Stairways

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WARNING

DO NOT attempt to move an occupied power

5. After the wheelchair has been tilted back to the bal­ance point, one assistant (in the rear) backs the wheel­chair up against the first step, while securely grasping
a non-removable (non-detachable) part of the wheel­chair for leverage.

6. The second assistant, with a firm hold on a non-de­tachable part of the framework, lifts the wheelchair up
and over the stair and steadies the wheelchair as the
first assistant places one (1) foot on the next stair and
repeats STEP 1.

7. The wheelchair should not be lowered until the last
stair has been negotiated and the wheelchair has been
rolled away from the stairway.

W ARNING

Make sure anti-tipper wheels are pointing down
towards ground/floor BEFORE using wheelchair.

8. Turn anti-tipper wheels down towards the ground/floor.

wheelchair between floors using a stairway. Use
an elevator to move an occupied power wheel­chair between floors. If moving a power wheel­chair between floors by means of a stairway, the
occupant MUST be removed and transported
independently of the power wheelchair.

Extreme caution is advised when it is necessary
to move an UNOCCUPIED power wheelchair up

9. Engage the following:
MOTORS w/MOTOR LOCKS - Motor locks. Refer

DISENGAGING/ENGAGING MOTORS WITH

to
MOTOR LOCKS in PROCEDURE 12 of this manual.

MOTORS w/CLUTCHES - Clutches. Refer to
GAGING/ENGAGING MOTORS WITH CLUTCHES
in PROCEDURE 12 of this manual.

DISEN-

or down the stairs. Invacare recommends using
two (2) assistants and making thorough prepa­rations. Make sure to use ONLY secure, non-de­tachable parts for hand-hold supports.

DO NOT use an escalator to move a wheelchair
between floors. Serious bodily injury may occur.

ESCALATORS? SORRY!

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.

Follow this procedure for moving the wheelchair be­tween floors when an elevator is NOT available:

WARNING

The weight of the wheelchair without the user and
batteries is still between 94 and 101 lbs. Use proper
liftng techniques (lift with your legs) to avoid injury.

1. Remove the occupant from the wheelchair.

2. Remove the battery boxes from the rear of the wheel­chair. Refer to
BOXES in PROCEDURE 8 of this manual.

3. Turn the anti-tippers so the wheels are pointing UP.

4. Disengage the following:
MOTORS w/MOTOR LOCKS - Motor locks. Refer

DISENGAGING/ENGAGING MOTORS WITH

to
MOTOR LOCKS in PROCEDURE 12 of this manual.

MOTORS w/CLUTCHES - Clutches. Refer to
GAGING/ENGAGING MOTORS WITH CLUTCHES
in PROCEDURE 12 of this manual.

INSTALLING/REMOVING BATTERY

DISEN-

Transferring to and From Other Seats

W ARNING

ALWAYS turn the wheelchair power OFF and en­gage the motor locks/clutches to prevent the
wheels from moving BEFORE attempting to trans­fer in or out of the wheelchair. Also, make sure ev­ery precaution is taken to reduce the gap distance
by turning both rear casters parallel to the object
you are transferring onto.

CAUTION

When transferring, position yourself as far back as
possible in the seat. This will prevent broken screws,
damaged upholstery and the possibility of the
wheelchair tipping forward.

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GENERAL GUIDELINES PROCEDURE 1

NOTE: This activity may be performed independently pro­vided you have adequate mobility and upper body strength.

1. Position the wheelchair as close as possible along side
the seat to which you are transferring, with the rear
casters parallel to it.

2. Engage the following:
MOTORS w/MOTOR LOCKS - Motor locks. Refer

DISENGAGING/ENGAGING MOTORS WITH

to
MOTOR LOCKS in PROCEDURE 12 of this manual.

MOTORS w/CLUTCHES - Clutches. Refer to

DISEN-

GAGING/ENGAGING MOTORS WITH CLUTCHES
in PROCEDURE 12 of this manual.

3. Shift body weight into seat with transfer.

During independent transfer, little or no seat platform will
be beneath you. Use a transfer board if at all possible.

TILTING - CURBS.

After mastering the techniques of tilting the wheelchair, use
this procedure to tackle curbs, short stairs, etc.

This procedure requires two (2) assistants. The second
assistant should be positioned at the front of the wheel­chair lifting upward on a non-removable (non-detachable)
part of the wheelchair frame when lifting the wheelchair
and stabilizing the wheelchair when the wheelchair is be­ing lowered to the ground.

The first assistant should turn the anti-tippers so the wheels
are pointing up, apply a continuous downward motion until
the balance point is achieved and the front casters clear
the curb. At this point, the assistants will feel a difference in
the weight distribution.

Roll the wheelchair forward and slowly lower the wheel­chair in one continuous movement. Do not let the wheel­chair drop the last few inches to the ground. This could
result in injury to the occupant. Push the wheelchair for­ward until the rear wheels roll up and over the curb.

W ARNING

Make sure anti-tipper wheels are pointing down
towards ground/floor BEFORE using wheelchair.

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Turn the anti-tipper wheels down towards the ground/floor.

Tilting

W ARNING

DO NOT tilt the wheelchair without assistance.

When tilting the wheelchair, an assistant should grasp the
back of the wheelchair on a non-removable (non-detach-

TILTING: CURBS

able) part. Inform the wheelchair occupant before tilting the
wheelchair and remind him/her to lean back. Be sure the
occupant’s feet and hands are clear of all wheels.

WARNING

CAUTION: IT IS VERY IMPORT ANT THA T YOU READ THIS INFORMA TION REGARDING THE POSSIBLE EFFECTS
OF ELECTROMAGNETIC INTERFERENCE ON YOUR POWERED WHEELCHAIR.

Electromagnetic Interference (EMI) From Radio Wave sources
Powered wheelchairs and motorized scooters (in this text, both will be referred to as powered wheel-

chairs) may be susceptible to electromagnetic interference (EMI), which is interfering electromag­netic energy (EM) emitted from sour ces such as radio stations, TV stations, amateur radio (HAM) trans­mitters, two way radios, and cellular phones. The interference (from radio wave sources) can cause
the powered wheelchair to release its brakes, move by itself, or move in unintended directions. It can
also permanently damage the powered wheelchair's control system. The intensity of the interfering EM
energy can be measured in volts per meter (V/m). Each powered wheelchair can resist EMI up to a
certain intensity. This is called its "immunity level." The higher the immunity level, the greater the protec­tion. At this time, current technology is capable of achieving at least a 20 V/m immunity level, which
would provide useful protection fr om the more common sources of radiated EMI. This powered wheel­chair model as shipped has an unknown immunity level.

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GENERAL GUIDELINESPROCEDURE 1

WARNING

There are a number of sources of relatively intense electromagnetic fields in the everyday environ-

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ment. Some of these sources are obvious and easy to avoid. Others are not apparent and exposur e is
unavoidable. However, we believe that by following the warnings listed below, your risk to EMI will be
minimized.

The sources of radiated EMI can be broadly classified into thr ee types:

1) Hand-held Portable transceivers (transmitters-receivers with the antenna mounted directly on
the transmitting unit. Examples include: citizens band (CB) radios, "walkie talkie", security, fire and
police transceivers, cellular telephones, and other personal communication devices. **NOTE:
Some cellular telephones and similar devices transmit signals while they are ON, even when not
being used;

2) Medium-range mobile transceivers, such as those used in police cars, fire trucks, ambulances,
and taxis. These usually have the antenna mounted on the outside of the vehicle; and

3) Long-range transmitters and transceivers, such as commercial broadcast transmitters (radio and
TV broadcast antenna towers) and amateur (HAM) radios.

NOTE: Other types of hand-held devices, such as cordless phones, laptop computers, AM/FM radios,
TV sets, CD players, cassette players, and small appliances, such as electric shavers and hair dryers, so
far as we know, are not likely to cause EMI problems to your powered wheelchair.

Powered Wheelchair Electromagnetic Interference (EMI)
Because EM energy rapidly becomes more intense as one moves closer to the transmitting antenna

(source), the EM fields from hand-held radio wave sources (transceivers) are of special concern. It is
possible to unintentionally bring high levels of EM energy very close to the powered wheelchair's con­trol system while using these devices. This can affect powered wheelchair movement and braking.
Therefore, the warnings listed below are recommended to prevent possible interference with the con­trol system of the powered wheelchair.

Electromagnetic interference (EMI) from sources such as radio and TV stations, amateur radio (HAM)
transmitters, two-way radios, and cellular phones can affect powered wheelchairs and motorized
scooters. Following the warnings listed below should reduce the chance of unintended brake release
or powered wheelchair movement which could result in serious injury.

1) Do not operate hand-held transceivers (transmitters receivers), such as citizens band (CB) radios,
or turn ON personal communication devices, such as cellular phones, while the powered wheel­chair is turned ON;

2) Be aware of nearby transmitters, such as radio or TV stations, and try to avoid coming close to
them;

3) If unintended movement or brake release occurs, turn the powered wheelchair OFF as soon as
it is safe;

4) Be aware that adding accessories or components, or modifying the powered wheelchair, may
make it more susceptible to EMI (Note: There is no easy way to evaluate their effect on the
overall immunity of the powered wheelchair); and

5) Report all incidents of unintended movement or brake release to the powered wheelchair manu­facturer, and note whether there is a source of EMI nearby.

Important Information

1) 20 volts per meter (V/m) is a generally achievable and useful immunity level against EMI (as of
May 1994) (the higher the level, the greater the protection);

2) The MKIV-RII has an unknown immunity level.

Modification of any kind to the electronics of this wheelchair as manufactured by Invacare may ad­versely affect the RFI immunity levels.

10

SAFETY INSPECTION/TROUBLESHOOTING PROCEDURE 2

This Procedure Includes the Following:
Safety Inspection Checklist
Troubleshooting - Mechanical
Troubleshooting - Electrical
Checking Battery Charge Level
Motor Testing
Motor Brush Inspection
Motor Lock Testing

SAFETY INSPECTION CHECKLIST

Initial adjustments should be made to suit personal body structure and preference. Thereafter follow these maintenance procedures:

ITEM

GENERAL (MECHANICAL TROUBLESHOOTING)
l Wheelchair rolls straight (no excessive drag or pull to one side).

CLOTHING GUARDS

l Ensure all fasteners are secure.

ARMS - (PROCEDURE 5)

l Secure but easy to release; adjustment levers engage properly.
l Inspect for rips in upholstery.
l Armrest pad sits flush against arm tube.

*WHEEL LOCKS - (PROCEDURE 12)

l Do not interfere with tires when rolling.
l Pivot points free of wear and looseness.
l Wheel locks easy to engage.

SEAT AND BACK UPHOLSTER Y - (PROCEDURE 6)

l Inspect for rips or sagging.

REAR WHEELS - (PROCEDURE 12)

l Axle bolts and locking tab washers are secure.
l No excessive side movement or binding when lifted and spun when disengaged (free-

wheeling).

FRONT CASTERS - (PROCEDURE 12)

l Inspect wheel/fork assembly for proper tension by spinning caster; caster should

come to a gradual stop.

l Loosen/tighten locknut if wheel wobbles noticeably or binds to a stop.

CAUTION: As with any vehicle, the wheels and tires should be checked periodi­cally for cracks and wear, and should be replaced.

CASTER/WHEEL/FORK/HEAD TUBE - (PROCEDURE 12)

l Ensure all fasteners are secure.

TIRES - (PROCEDURE 12)

l Inspect for flat spots and wear.
l If pneumatic tires check for proper inflation.

CAUTION: As with any vehicle, the wheels and tires should be checked periodi­cally for cracks and wear, and should be replaced.

CLEANING

l Clean upholstery and armrests.

INITIALLY

NOTE: Every six (6) months take your wheelchair to a qualified technician for a thorough inspection and servicing. Regular cleaning
will reveal loose or worn parts and enhance the smooth operation of your wheelchair. To operate properly and safely, your wheelchair
must be cared for just like any other vehicle. Routine maintenance will extend the life and efficiency of your wheelchair.

INSPECT/

ADJUST

WEEKLY

X

X

X
X

X

X
X
X

X

X
X

X
X

X

X
X

X

X

X
X

INSPECT/

ADJUST

MONTHLY

X
X

X
X

INSPECT/

ADJUST

PERIODICALLY

X

X

X
X
X

X

X

X

S
A
F
E
T
Y

I
N
S
P
E
C
T

I
O
N

T
R
O
U
B
L
E
S
H
O
O
T

I
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G

WARNING

*Wheel locks are an OPTION on this wheelchair, (you may order with or without wheel locks).
Transfer to and from the wheelchair in the presence of a qualified healthcare professional to
determine individual safety limits. Invacare strongly recommends ordering the wheel locks as an
additional safeguard for the wheelchair user.

11

SAFETY INSPECTION/TROUBLESHOOTINGPROCEDURE 2

TROUBLESHOOTING - MECHANICAL

CHAIR VEERS

S
A

LEFT/RIGHT

X

SLUGGISH TURN/

PERFORMANCE

X

CASTERS

FLUTTER

X

SQUEAKS AND

RATTLES

LOOSENESS

IN CHAIR

F
E
T
Y

I

N

TROUBLESHOOTING - ELECTRICAL

S
P
E

X
X

SYMPTOM

Batteries draw excessive current
when charging.

X

C
T

I

O

Battery indicator flashes the charge
level is low—immediately after re­charge.

N

Battery indicator flashes the charge
level is low—too soon after being
recharged.

T
R

O

U
B
L
E

Motor “chatters” or runs irregular.
Wheelchair does not respond to

commands. Power "ON", battery
indicator flashes.

Only one (1) rear wheel turns.

S
H

O

Joystick erratic or does not respond
as desired.

X
X

PROBABLE CAUSE

Battery failure.

Electrical malfunction.
Battery failure.

Malfunctioning battery charger.
Electrical malfunction.

Batteries not charged.
Weak batteries.
Electrical malfunction.
Electrical malfunction.
One (1) or both motor locks/clutches dis-

engaged.

Electrical malfunction.
One (1) motor lock/clutch is disengaged.
Electrical malfunction.
Controller Programed improperly.

X

X

O

T

I

N

G

Wheelchair does not respond to
commands. Power indicator OFF—
even after recharging.

Poor battery terminal connection.
Electrical malfunction.

NOTE: For additional troubleshooting information and explanation of error codes, refer to the individual CONTROLLER MANUAL
supplied with each wheelchair.

CHAIR 3

WHEELS

SOLUTIONS

X

If pneumatic, check tires for cor­rect and equal pressure.

Check for loose stem nuts/bolts.
Check that both casters contact

ground at the same time.

SOLUTIONS

Check batteries for shorted cell. Replace if neces­sary (PROCEDURE 8).

Contact Dealer/Invacare for Service.
Check batteries for shorted cell. Replace if neces-

sary (PROCEDURE 8).
Contact Dealer/Invacare for Service.
Poor connections between charger and wheel-

chair. Contact Dealer/Invacare for Service.
Have charger checked.
Replace batteries if necessary (PROCEDURE 8).
Contact Dealer/Invacare for Service.
Contact Dealer/Invacare for Service.
Engage motor locks/clutches (PROCEDURE 12).

Contact Dealer/Invacare for Service.
Engage motor lock/clutch (PROCEDURE12).
Contact Dealer/Invacare for Service.
Reprogram controller (Refer to MCC-MKIV con-

troller manual supplied with wheelchair).
Clean terminals (PROCEDURE 8).
Contact Dealer/Invacare for Service.

CHECKING BATTERY CHARGE LEVEL (FIGURE 1)

WARNING

Invacare recommends that the following procedur es be performed by a qualified service technician.

The following “Do’s” and “Don’ts” are provided for your convenience and safety.

DON’T DO

Don’t perform any installation or maintenance
without first reading this manual.

Don’t perform installation or maintenance of
batteries in an area that could be damaged by
battery spills.

Don’t make it a habit to discharge batteries to
the lowest level.

Don’t use randomly chosen batteries/chargers.
Don’t put new batteries into service before

charging.

Read and understand this manual and any service information that accompa­nies a battery and charger before operating the wheelchair.

Move the wheelchair to a work area before checking the fluid level, adding dis­tilled water, cleaning terminals, or opening battery box.

Recharge as frequently as possible to maintain a high charge level and extend
battery life.

Follow recommendations in this manual when selecting a battery or charger.
Fully charge a new battery before using.

12

SAFETY INSPECTION/TROUBLESHOOTING PROCEDURE 2

DON’T DO

Don’t tip or tilt batteries.
Don’t use ordinary tap water.
Don’t overfill cells.
Don’t use uneven levels of distilled water in cells.
Don’t tap on clamps or terminals with tools.
Don’t mismatch your battery and chargers.

NOTE: The following test can also be performed through
the controller of the wheelchair along with a remote pro­grammer. Refer to the individual CONTROLLER
MANUAL supplied with each wheelchair.

Field Load Test

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.

Use a digital voltmeter to check battery charge level at
charger connector. It is located on side of wheelchair frame.

NOTE: READ the instructions CAREFULLY before using
the digital voltmeter.

1. Ensure that power is OFF.

2. Make sure batteries are fully charged. An extremely
discharged battery will exhibit the same symptoms as
a bad one.

3. Remove the footrests from the wheelchair and place
the front of the wheelchair against a wall, workbench
or other stationary object.

Battery Charger

Connector on Side

FIGURE 1 - BA TTER Y CHARGE LEVEL

Use a carrying strap to remove, move or install a battery.
ONL Y use distilled water to refill.
Keep the liquid level in the cells at the “split ring” level.
Maintain the liquid in all cells at the “split ring” level.
Push battery clamps onto terminals. Spread clamps wider if necessary.
Use ONL Y a GEL charger for a GEL or sealed battery and a regular charger for

regular batteries.

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 power ON and push 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 meter while mo­tors are straining to determine the voltage under load.

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.

Using Hydrometer to Check Battery Cells
(Lead Acid) (FIGURE 2)

NOTE: Perform this procedure when a digital voltmeter
is not available.

WARNING

NEVER smoke or strike a match near the batter­ies. If the caps of battery cells are removed,
NEVER look directly into them when charging bat­tery.

The use of rubber gloves and safety glasses is rec­ommended when testing the battery cells.

When reading a hydrometer, DO NOT allow any
liquid to come in contact with your eyes or skin. It
is a form of acid and can cause serious burns,

Digital

Voltmeter

of Wheelchair

and in some cases, blindness. If you do get bat­tery acid on you, flush the exposed areas with
cool water IMMEDIATELY. If the acid comes into
contact with eyes or causes serious burns, get
medical help IMMEDIA TEL Y .

The battery acid can damage your wheelchair,
clothing, and household items. Therefore, take
readings cautiously and only in designated ar­eas.

ONL Y use distilled water when topping off the bat­tery cells.

S
A
F
E
T
Y

I
N
S
P
E
C
T

I
O
N

T
R
O
U
B

L

E

S
H
O
O

T

I
N
G

13

SAFETY INSPECTION/TROUBLESHOOTINGPROCEDURE 2

WARNING

MOTOR TESTING (FIGURE 3)

Most batteries are not sold with instructions. How-

S
A
F
E
T
Y

I
N
S
P
E
C
T

I

O

N

ever, warnings are frequently noted on the cell
caps. Read them carefully.

1. Remove the battery boxes from the wheelchair. Re­INSTALLING/REMOVING BATTERY BOXES

fer to
in PROCEDURE 8 of this manual.

2. Remove the battery caps from the battery.

3. Squeeze the air from the hydrometer.

4. Place the hydrometer into a battery cell.

NOTE: DO NOT fill hydrometer more than 3/4 full.

5. Draw up sufficient acid to cover float balls.

6. Tap lightly to remove air bubbles.

7. Number of floating balls indicates charge.

NUMBER OF FLOATING BALLS

Invacare recommends that the following proce­dures be performed by a qualified service tech­nician.

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 ohms.

3. Measure the resistance between the two (2) motor
contacts.

NOTE: A normal reading is between 1 and 5 ohms
(

Ω

). A reading of 0 ohms (Ω) or in excess of 15 ohms
(Ω) indicates a problem. High readings are generally
caused by bad connections and/or damaged brushes.
Contact authorized dealer or Invacare.

WARNING

0 Discharged
1 25% Charged
2 50% Charged

T
R

O

U
B
L
E
S

H
O
O

T

N
G

8. Flush the liquid back into the same cell after reading

9. Flush hydrometer in cold running water by allowing

I

10. Replace the battery caps.

11. Install the battery boxes onto the wheelchair. Refer to

3 75% Charged
4 100% Charged

* 5 Overcharged

* Check charging system.

the float. Repeat this step until all cells have been
properly read. A shorted or dead cell can be detected
when it is the only cell that doesn’t charge.

the water to rise into the hydrometer as far as pos­sible. Do this several times to guard against burn
damage.

Ohmmeter

Motor Connector

INSTALLING/REMOVING BATTERY BOXES in
PROCEDURE 8 of this manual.

FIGURE 3 - MOTOR TESTING

Number of Floating

Balls Will Vary

According to Charge

FIGURE 2 - USING HYDROMETER TO CHECK

BA TTERY CELLS (LEAD ACID)

14

SAFETY INSPECTION/TROUBLESHOOTING PROCEDURE 2

MOTOR BRUSH INSPECTION
(FIGURE 4)

WARNING

Invacare recommends that the following proce­dures be performed by a qualified service tech­nician.

There are two (2) contact brushes on the motors located
under the brush caps on the motor housing. If these caps
are hard to remove they are either overtighened 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.

1. 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 rear
of the wheelchair up on blocks 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.

Brush Cap

Motor End Cap

MOTOR LOCK TESTING (FIGURE 5)

WARNING

Invacare recommends that the following proce­dures be performed by a qualified service tech­nician.

1. On the four-pin motor connector, locate the side
by side connectors in the black housings.

2. Set the digital multimeter to read ohms.

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, it is recommended that the motor
be sent to Invacare Technical Service for inspec­tion/repair.

CAUTION

A short circuited brake will damage the brake
output section in the controller. DO NOT con­nect a bad electromechanical brake to a
good controller module. A shorted electrome­chanical brake MUST be replaced.

NOTE: A bad motor can damage the controller mod­ule but a bad controller will NOT damage a motor.

Brush Cap

End Cap

S
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T
Y

I
N
S
P
E
C
T

I
O
N

T
R
O
U
B

L

E

S
H
O
O

T

I
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G

Four (4) Pin Motor Connector

FIGURE 4 - MOTOR BRUSH INSPECTION

Four (4) Pin Motor Connector

Ohmmeter

Motor Connector

FIGURE 5 - MOTOR LOCK TESTING

15

PROCEDURE 3 ASSEMBLY/TRANSPORTING

A
S
S
E

M

B

L

Y

This Procedure Includes the Following:
Assembling/Transporting

WARNING

After ANY adjustments, repair or service and BE­FORE use, make sure all attaching hardware is
tightened securely - otherwise injury or damage
may result.

ASSEMBLING/TRANSPORTING
(FIGURE 1)

WARNING

The following assembly procedure should be
performed only by a qualified technician.

The weight of the wheelchair without the user and
batteries is still 94 lbs. Use proper lifting techniques
(lift with your legs) to avoid injury. Extreme cau­tion is advised when it is necessary to move an
UNOCCUPIED power wheelchair. Invacare rec­ommends using two (2) assistants and making
thorough preparations. Make sure to use ONLY
secure, non-detachable parts for hand-hold sup­ports.

Unfolding/Folding Wheelchair

WARNING

Keep hands and fingers clear of moving parts to
avoid injury.

UNFOLDING.

1. Push down on the seat rails until the seat rails are
positioned in the seat guides.

2. Assemble the wheelchair. Refer to FIGURE 1.

FOLDING.

1. Remove the batteries and footrests/legrests from the
wheelchair. Refer to FIGURE 1.

2. Remove the battery tray from the wheelchair. Refer
to FIGURE 1.

3. Lift up on the seat rails of the wheelchair.

● ASSEMBLING - Install the back assembly*.

● TRANSPORTING - No need to remove the back as-

sembly for transporting.
*Refer to
DURE 7 of this manual.

INSTALLING BACK ASSEMBLY in PROCE-

T

R

A

N

S

P
O
R

T
N

G

● ASSEMBLING - Install the bat-
tery tray and batteries*.

● TRANSPORTING - Remove
the batteries and battery tray*.
*Refer to
ING BATTERY TRAY and IN­STALLING/REMOVING BAT­TERY BOXES in PROCEDURE

I

8 of this manual.

● ASSEMBLING - Install
the anti-tippers*.

● TRANSPORTING - Re­move the anti-tippers*.
*Refer to
REMOVING ANTI-TIP­PERS in PROCEDURE
12 of this manual.

INSTALLING/REMOV-

INSTALLING/

● ASSEMBLING - Install the electronics*.

● TRANSPORTING - No need to remove the

electronics for transporting.
*Refer to PREPARING MKIV JOYSTICK FOR
USE in PROCEDURE 9 of this manual.

FIGURE 1 - ASSEMBLING/TRANSPORTING

● ASSEMBLING - Install the foot-
rests/legrests*.

● TRANSPORTING - Remove the
footrests/legrests*.
*Refer to
FOOTRESTS or INSTALLING/RE­MOVING ELEVATING LEGRESTS
in PROCEDURE 4 of this manual.

INSTALLING/REMOVING

16

FRONT RIGGINGS PROCEDURE 4

This Procedure Includes the Following:
Installing/Removing Footrests
Adjusting Footrest Height
Replacing Heel Loops
Installing/Removing Elevating Legrests
Raising/Lowering Elevating Legrests and/or

Adjusting Calfpads
Adjusting/Replacing Telescoping Front

Rigging Support

WARNING

After ANY adjustments, repair or service and BE­FORE use, make sure all attaching hardware is
tightened securely - otherwise injury or damage
may result.

INSTALLING/REMOVING
FOOTRESTS (FIGURE 1)

Installing

1. Turn the footrest to the side (open footplate is per­pendicular to wheelchair) and position the mounting
holes in the footrest hinge plates with the hinge pins
on the wheelchair frame.

2. Install the footrest hinge plates onto the hinge pins
on the wheelchair frame.

3. Push the footrest towards the inside of the wheel­chair until it locks into place.

NOTE: The footplate will be on the inside of the wheel­chair when locked in place.

Removing

1. Push the footrest release lever inward and rotate
the footrest outward.

2. Lift up on the footrest and remove from the wheel­chair.

3. Repeat STEPS 1-2 for the opposite side of the wheel-
chair.

ADJUSTING FOOTREST HEIGHT

All Footrests Except Model P93M Footrests
(FIGURE 2)

1. Remove any accessory from the footrest(s).

2. Remove the footrest from the wheelchair. Refer to
INSTALLING/REMOVING FOOTRESTS in this pro-
cedure of the manual.

NOTE: Lay the footrest on a flat surface to simplify this
procedure.

3. Remove the hex bolt, coved washers and locknut
that secure the lower footrest to the footrest support.

4. Reposition the lower footrest to the desired height.

5. Reinstall the hex bolt, coved washers and locknut
that secure the lower footrest to the footrest support
and tighten securely.

6. Repeat STEPS 1-5 for the opposite side of the wheel-
chair footrest, if necessary.

7. Reinstall the footrest(s) onto the wheelchair. Refer

INSTALLING/REMOVING FOOTRESTS in this

to
procedure of the manual.

8. Reinstall any accessory onto the footrest(s).

F
R
O
N
T

R

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G

I
N
G
S

4. Repeat STEPS 1-3 for opposite side of wheelchair.

Hinge

Pins

FIGURE 1 - INST ALLING/REMOVING FOOTRESTS

Footrest Release Lever

Hinge

Plate

Footrest Support

Locknut

Coved Washer

NOTE: PW93ST style
footrest shown for clarity
only.

FIGURE 2 - ADJUSTING FOOTREST HEIGHT - ALL

FOOTRESTS EXCEPT MODEL P93M FOOTRESTS

17

Washer

Lower Footrest

Coved

Hex Bolt

FRONT RIGGINGSPROCEDURE 4

F
R
O
N

T
R

G
G

N
G
S

P93M Model Footrests (FIGURE 3)

1. Loosen, but do not remove the lug bolt and locknut
that secure the lower footrest to the footrest support.

2. Reposition the lower footrest to the desired height.

3. Securely tighten the lug bolt and locknut that secure
the lower footrest to the footrest support.

4. Repeat STEPS 1-3 for the opposite side of the wheel-

I

I

chair footrest, if necessary.

Footrest

Support

Locknut

FIGURE 3 - ADJUSTING FOOTREST HEIGHT - P93M

MODEL FOOTRESTS

REPLACING HEEL LOOPS (FIGURE 4)

1. Note the position the hex bolt, coved washers and lock­nut for reinstallation.

Lug Bolt

Lower

Footrest

NOTE: When securing the heel loop to the lower footrest,
tighten the phillips screw and locknut until the spacer is
secure.

INSTALLING/REMOVING
ELEVATING LEGRESTS (FIGURE 5)

Installing

1. Turn the legrest to the side (open footplate is perpen­dicular to wheelchair) and position the mounting holes
in the legrest hinge plates with the hinge pins on the
wheelchair frame.

2. Install the legrest hinge plates onto the hinge pins on
the wheelchair frame.

3. Rotate legrest toward the inside of the wheelchair until
it locks in place.

NOTE: The footplate will be on the inside of the wheel­chair when locked in place.

4. Repeat STEPS 1-3 for the opposite legrest.

5. After seated in wheelchair, adjust footplate to cor­rect height by loosening the nut and sliding the lower
footrest assembly up or down until desired height is
achieved.

Removing

2. Remove the hex bolt, coved washers and locknut that
secure the lower footrest to the footrest support.

3. Remove the lower footrest.

4. Remove the phillips bolt and locknut that secure the
existing heel loop to the lower footrest.

5. Slide the existing heel loop off the lower footrest.

6. Replace heel loop.

7. Reverse STEPS 1-6 to reassemble.

Locknut

Cover Washers

Lower Footrest

Hex Bolt

Phillips Bolt

Spacer

Heel Loop

Locknut

1. Push the legrest release handle toward the inside of
the wheelchair (facing the front of the wheelchair) and
swing the legrest to the outside of the wheelchair.

2. Lift up on the legrest and remove from the wheel­chair.

3. Repeat STEPS 1-2 for the opposite side of the wheel-
chair.

Legrest Release Handle

Hinge Pins

Legrest

Hinge

Plates

FIGURE 5- INST ALLING/REMOVING ELEVATING

LEGRESTS

FIGURE 4 - REPLACING HEEL LOOPS

18

PROCEDURE 4FRONT RIGGINGS

RAISING/LOWERING ELEVATING
LEGRESTS AND/OR ADJUSTING
CALFPADS (FIGURE 6)

Raising/Lowering Elevating Legrests

1. Perform one (1) of the following:
RAISING - Pull back on the release lever until

the leg is at the desired height.

LOWERING - Support leg with one (1) hand and

push release lever downward with
other hand.

Adjusting Calfpads

1. Turn the calfpad towards the outside of the wheel­chair.

2. Slide calfpad up or down until the desired position is
obtained.

NOTE: If one (1) of the top two (2) calfpad adjustment
positions is being used, the legrest will need to be raised
to avoid interference with the front stabilizers while going
over obstacles or going up and down ramps. Refer to
RAISING/LOWERING ELEVATING LEGRESTS in this
procedure of the manual.

3. Turn the calfpad towards the inside of the wheelchair.

Release Lever

3. Remove the two (2) locknuts and socket bolts that
secure the support assembly to the wheelchair.

Adjusting

1. Position the support assembly to the desired depth.

NOTE: The two (2) support assemblies may be positioned
at different depths depending on the need of the user.

2. Insert the front socket bolt into the wheelchair frame
and the mounting hole in the telescoping front rigging
support determined in STEP 1 and securely tighten
with the locknut.

3. Insert the rear socket bolt through the wheelchair frame
and the telescoping front rigging support and securely
tighten with the locknut.

4. Resecure the H-block to the wheelchair with the phil­lips bolt and locknut.

5. Snap the crossbraces into the H-blocks. Wiggle the
crossbraces to make sure they are secured in H­blocks.

Replacing

NOTE: Observe the position of the current support as­sembly before removal to ensure correct position of new
support assembly.

F
R
O
N
T

R

I
G
G

I
N
G
S

Calfpad

Rotated for

Height

Adjustment

Top Two (2) Calfpad

Adjustment Positions

FIGURE 6- RAISING/LOWERING ELEVATING
LEGRESTS AND/OR ADJUSTING CALFPADS

Calfpad

ADJUSTING/REPLACING
TELESCOPING FRONT RIGGING
SUPPORT (FIGURE 7)

1. Lift up on the crossbraces until they release from the
H-blocks on the wheelchair frame.

2. Remove the phillips bolt and locknut that secure the
H-block to the wheelchair frame.

1. Remove existing support assembly from wheelchair.

2. Adjust the telescoping front rigging support. Refer to
ADJUSTING TELESCOPING FRONT RIGGING
SUPPORT in this procedure of the manual.

Phillips Screw

H-Block

Socket

Screws

Wheelchair

Frame

Locknuts

DO NOT USE WITH

FRONT SOCKET

SCREW

FIGURE 7 - ADJUSTING/REPLACING

TELESCOPING FRONT RIGGING SUPPORT

Front Socket

Screw Positions

(in inches deep):

18 17 16

Telescoping

Front Rigging

Support

19

PROCEDURE 5 ARMS

A
R

M

S

This Procedure Includes the Following:
Adjusting Armrest Height, Removing or Replacing

Armrests
Installing/Removing Flip Back Armrests - Non-

Recliner Wheelchairs Built After 10/2000 ONLY
Adjusting Flip Back Armrests - Non-Recliner

Wheelchairs Built After 10/2000 ONLY

WARNING

After ANY adjustments, repair or service and
BEFORE use, make sure all attaching hardware
is tightened securely - otherwise injury or dam­age may result.

ADJUSTING ARMREST HEIGHT,
REMOVING OR REPLACING
ARMRESTS (FIGURE 1)

WARNING

Make sure the locking mechanism is secured be­fore using the wheelchair.

Adjusting Armrest Height

1. Unlock the armrest by flipping the height adjustment
lever on the top front of the arm to the UP (HORI­ZONTAL) position.

Height Adjustment

Lever

Locked

Armrest
Release

Lever

Unlocked

FIGURE 1 - ADJUSTING ARMREST HEIGHT,

REMOVING OR REPLACING ARMRESTS

INSTALLING/REMOVING FLIP BACK
ARMRESTS - NON-RECLINER
WHEELCHAIRS BUILT AFTER 10/
2000 ONLY (FIGURE 2)

WARNING

Make sure the flip back armrest release and
height adjustment levers are in the locked posi­tion before using the wheelchair.

NOTE: Flip back armrest release lever must be in unlocked
position when placing armrest into the arm sockets.

2. Adjust armrest to desired height.

NOTE: Height adjustment lever MUST be in the unlocked
position when placing armrest into the arm assembly.

3. Lock the armrest by pressing the height adjustment
lever into the DOWN (VERTICAL) position when the
desired height is achieved.

Removing Armrests

1. Unlock the armrest by flipping the armrest release
lever located on the side rail to the UP (HORIZON­TAL) position.

2. Remove the armrest from the wheelchair.

Replacing Armrests

NOTE: Armrest release lever MUST be in the unlocked
position when placing armrest into the arm sockets.

1. Lock the armrest by pressing the armrest release
lever into the DOWN (VERTICAL) position.

Installing

1. Slide the flip back armrest into the arm sockets on the
wheelchair frame.

2. Install the quick release pin through the rear arm socket
and flip back armrest.

3. Lock flip back armrest by pressing flip back armrest
release lever into the DOWN (VERTICAL) position.

4. Lift up on flip back armrest to make sure the armrest
is locked in place.

5. Repeat STEPS 1-4 for opposite flip back armrest.

Removing

1. Unlock flip back armrest by pulling flip back armrest
release lever into the UP (HORIZONTAL) position.

2. Remove the quick release pin that secures the flip
back armrest to the wheelchair frame.

3. Pull up on the flip back armrest and remove the arm­rest from the arm sockets.

4. Repeat STEPS 1-3 for the opposite flip back arm­rest, if necessary.

20

PROCEDURE 5ARMS

Quick Release Pin

Flip Back Armrest

Release Lever

Rear

Arm

Socket

FIGURE 2 - INST ALLING/REMOVING FLIP BACK

ARMRESTS - NON-RECLINER WHEELCHAIRS BUILT

AFTER 10/2000 ONLY

LOCKED (DOWN -

VERTICAL)

UNLOCKED (UP-

HORIZONTAL)

Flip Back Armrest

Front Arm Socket

Wheelchair Frame

Flip Back Armrest

Release Lever

3. Lock flip back armrest by pressing flip back armrest
release lever into the DOWN (VERTICAL) position.

4. Lift up on flip back armrest to make sure the armrest
is locked in place.

5. Repeat STEPS 1-4 for opposite flip back armrest, if
necessary.

Adjusting

1. Unlock top of flip back armrest by pulling height ad­justment lever into the UP (HORIZONTAL) position.

2. Adjust top of the flip back armrest to the desired
height.

3. Lock top of flip back armrest by pushing height ad­justment lever into the DOWN (VERTICAL) position.

4. Lift up on flip back armrest to make sure the armrest
is locked in place.

5. Repeat STEPS 1-4 for opposite flip back armrest, if
necessary.

Top of the Flip Back Armrest

LOCKED (DOWN -

VERTICAL)

A
R
M

S

ADJUSTING FLIP BACK ARMRESTS

- NON-RECLINER WHEELCHAIRS
BUILT AFTER 10/2000 ONLY

(FIGURE 3)

Positioning Flip Back Armrests for User
Transfer

1. Unlock the flip back armrest by pulling the armrest
release lever into the UP (HORIZONTAL) position.

2. Pull up on the flip back armrest and remove the arm­rest from the front arm socket.

3. Continue to pull up on the flip back armrest until the
armrest is out of the way.

4. Repeat STEPS 1-3 for opposite flip back armrest, if
necessary.

Positioning Flip Back Armrests for Use

1. Make sure the flip back armrest release lever is in
the UP (HORIZONTAL) position.

2. Install the flip back armrest into the front arm socket.

UNLOCKED (UP-

HORIZONT AL)

Height

Adjustment

Lever

Flip Back Armrest

Release Lever

FIGURE 3- ADJUSTING FLIP BACK ARMRESTS - NON­RECLINER WHEELCHAIRS BUILT AFTER 10/2000 ONLY

Front Arm Socket

Flip Back

Armrest

21

PROCEDURE 6 UPHOLSTERY/POSITIONING STRAP

U

P
H
O

L

S

T

E
R

Y

This Procedure Includes the Following:
Replacing Seat Upholstery
Replacing Seat Positioning Strap
Replacing Back Upholstery

WARNING

After ANY adjustments, repair or service and BE­FORE use, make sure all attaching hardware is
tightened securely - otherwise injury or damage
may result.

REPLACING SEAT UPHOLSTERY
(FIGURE 1)

1. Remove the eight (8) phillips screws that secure the
existing seat upholstery to the crossbraces.

2. Remove existing seat upholstery from the crossbraces.

3. Line up mounting holes in new seat upholstery with
mounting holes in the crossbraces.

REPLACING SEAT POSITIONING
STRAP (FIGURE 2)

1. Remove the seat cushion from the seat upholstery.

2. Remove the two (2) rear phillips screws and washers
that secure the seat upholstery and seat positioning
strap to the crossbraces.

3. Remove the two (2) halves of the seat positioning
strap from the crossbraces.

4. Reposition the two (2) new seat positioning strap
halves between the seat upholstery and crossbraces.

5. Reinstall the rear phillips screws and washers that
secure the seat upholstery and seat positioning strap
to the crossbraces.

NOTE: Washer is positioned on top of seat upholstery.

6. Reinstall the seat cushion onto the seat upholstery.

Washer

Phillips Screw

Seat Upholstery

O

O

G

4. Securely tighten with existing phillips screws.

NOTE: Clean upholstery with warm DAMP cloth and mild
detergent to remove superficial soil.

P
S

I

T

I

N

I

N

Laundering or moisture will reduce flame retar­dation of the upholstery.

Phillips

Screws

W ARNING

Seat

Positioning

Strap

Crossbrace

FIGURE 2 - REPLACING SEA T POSITIONING STRAP

REPLACING BACK UPHOLSTERY

Wheelchairs Before 10/2000 (FIGURE 3)

S
T
R
A
P

Seat

Upholstery

1. Remove one (1) armrest from the wheelchair.

2. On the side of the wheelchair that the armrest was
removed, remove the hex bolt and locknut that se­cures the spreader bar to the back cane.

3. Cut the tie-wraps that secure the bottom of the exist­ing back upholstery to the wheelchair frame.

FIGURE 1 - REPLACING SEA T UPHOLSTER Y

4. Remove the two (2) phillips screws and washers that
secure the existing back upholstery to the back canes.

5. On the side of the wheelchair that the armrest was
removed, remove the two (2) hex bolts, washers and
locknuts that secure the back cane to the mounting
plates.

22

UPHOLSTERY/POSITIONING STRAP PROCEDURE 6

NOTE: The insert in the back cane will slide out of the
back cane.

NOTE: Remove only ONE (1) back cane from the wheel­chair.

6. Slide the back cane out of the spreader bar and the
existing back upholstery.

NOTE: Make sure the clamp on the spreader bar is loose
before removing the back cane from the wheelchair, oth­erwise the back cane can be scratched.

7. Pull the existing back upholstery up and over the
mounted back cane.

8. Install the new back upholstery over the mounted back
cane.

9. Slide the loose back cane through the new back up­holstery and spreader bar.

10. Install the insert into the back cane.

NOTE: To keep the insert lined up for reinstallation onto
the mounting plate, install one (1) of the hex bolts through
the back cane from the inside of the wheelchair to hold the
insert in place.

11. Slide the other hex bolt and washer through the mount­ing plate, insert and back cane and loosely tighten
with a locknut.

NOTE: Refer to the opposite back cane for the correct
hex bolt mounting positions to ensure the desired back
angle, or refer to

CHANGING BACK ANGLE in this pro-

cedure of the manual.

12. Remove the hex bolt that was holding the insert in
place and install the through the mounting plate, in­sert and back cane and secure with the other locknut.

W ARNING

The back canes MUST be fastened securely to the
mounting plates BEFORE using the wheelchair. Use
Loctite

13. Secure the back cane to mounting plate with the two

14. Secure the top of the new back upholstery to the back

15. Secure the bottom of the existing back upholstery to

®

242 and torque to 75-inch pounds.

(2) hex bolts, washers and locknuts. Use Loctite 242
and torque to 75-inch pounds.

canes with the two (2) existing phillips screws.

the wheelchair frame with new tie wraps.

U
P
H

O

L
S
T
E

R

Y

Spreader

Bar

Locknut

NOTE: Make
sure clamp is
loose before
removing back
cane.

Washer

Insert

Back Cane

Locknuts

Upholstery

Hex Bolt

Back

NOTE: Clean upholstery with warm DAMP cloth and mild
detergent to remove superficial soil.

W ARNING

Laundering or moisture will reduce flame retar­dation of the upholstery.

NOTE: When replacing the back upholstery, follow these
guidelines for spreader bar height:

BACK HEIGHT (in inches): 16-17 18-19 20

✪✪

✪ SPREADER BAR HEIGHT

✪✪

(in inches): 579

✪✪

✪

Height of Spreader Bar from Bottom of Back Canes to

✪✪

Top of Spreader Bar Clamp.

16. Make sure the spreader bar is at the correct height for
the corresponding back height.

17. Reinstall the bolt and locknut that secures the spreader
bar to the back cane and torque to 60-inch pounds.

18. Reinstall the armrest onto the wheelchair.

P

O

S

I

T

I

O

N

I

N

G

S
T

R

A
P

Hex
Bolt

FIGURE 3- REPLACING BACK UPHOLSTERY -

WHEELCHAIRS BEFORE 10/2000

Mounting

Plate

Loctite - Registered Trademark of Loctite Corporation.

23

PROCEDURE 6 UPHOLSTERY/POSITIONING STRAP

U

P
H
O

L

S

T

E
R

Y

Wheelchairs Built After 10/2000
(FIGURE 4)

1. Flip the armrests up and out of the way. Refer to
USING/ADJUSTING FLIP BACK ARMRESTS in
PROCEDURE 5 of this manual.

2. Cut the tie-wraps that secure the bottom of the exist­ing back upholstery to the wheelchair frame.

3. Remove the two (2) phillips screws and washers that
secure the existing back upholstery to the back canes.

4. Remove the two (2) hex bolts, washers and lock­nuts that secure one (1) back cane to the wheelchair
frame.

NOTE: It is necessary to remove only one (1) back cane
to replace the back upholstery.

5. Pull the loose back cane out of the existing back
upholstery.

6. Pull the existing back upholstery up and over the
mounted back cane.

7. Install new back upholstery over mounted back cane.

10. Use Loctite 242 on the hex bolts and torque into the
back canes to 75-inch pounds.

11. While holding the hex bolt, reinstall the locknut and
torque to 75-inch pounds.

12. Repeat STEP 11 for the other hex bolt and locknut.

13. Securely tighten the new back upholstery to the back
canes with the two (2) phillips screws and washers.

14. Secure the bottom of the new back upholstery to the
wheelchair frame with tie-wraps.

NOTE: Clean upholstery with warm DAMP cloth and
mild detergent to remove superficial soil.

WARNING

Laundering or moisture will reduce flame retar­dation of the upholstery.

Washer

Back Upholstery

O

O

G

R

8. Slide the loose top half of the back cane through the
new back upholstery.

Phillips

9. Using the mounted back cane as a guide, reinstall
the two (2) hex bolts that secure the top half of the

P

back cane to the bottom half of the back cane.

Screw

Tie Wrap Mounting Holes

NOTE: Make sure the back canes are mounted to the

S
T

N
N

S
T

A
P

I
I

I

same height.

WARNING

The top and bottom half of the back canes MUST
be tightened securely together BEFORE using the
wheelchair, otherwise injury or damage may oc­cur. Use Loctite 242 on the hex bolts and torque to
75-inch pounds.

Hex Bolts

(Apply Loctite

242 and torque

to 75-inch

pounds)

FIGURE 4 - REPLACING BACK UPHOLSTERY -

Back Cane

Washers

WHEELCHAIRS BUILT AFTER 10/2000

Locknuts

24

FRAME PROCEDURE 7

This Procedure Includes the Following:
Adjusting Seat Width
Adjusting Seat Depth
Installing Back Assembly - Wheelchairs Before

10/2000 ONLY
Changing Back Height
Changing Back Angle
Replacing Back Canes - Wheelchairs Built After

10/2000 ONLY

W ARNING

The following procedures should only be per­formed 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.

ADJUSTING SEAT WIDTH
(FIGURE 1)

1. Remove the battery boxes and battery tray from the
wheelchair. Refer to INSTALLING/REMOVING BAT­TERY BOXES and INSTALLING/REMOVING BAT­TERY TRAY in PROCEDURE 8 of this manual.

2. Remove the existing back and seat upholstery from
the wheelchair. Refer to
STERY and REPLACING SEAT UPHOLSTERY in
PROCEDURE 6 of this manual.

NOTE: If adjusting the seat width of the wheelchair, the
back and seat upholstery MUST be changed as well.

3. Remove the hex screws and locknuts that secure the
two (2) pivot links to the wheelchair frame and cross­braces. Refer to the following chart to determine if
new pivot links will be needed:

REPLACING BACK UPHOL-

PIVOT LINK SEA T WIDTH RANGE (in inches)

14-15, 16-18 and 19-20

4. Remove the black dust covers from the bottom of the
crossbraces.

NOTE: Note position of the tie wraps that secure the wir­ing harness to the crossbraces.

5. Cut the tie wraps that secure the wiring harness to the
crossbrace.

6. Remove the hex screws, washers and locknuts that
secure the bottom of the two (2) crossbraces to the
wheelchair frame.

F
R
A

M

E

Pivot

Link

Hex

Screw

Wheelchair

Frame

Note orientation of hex screw, bushing,
washers, coved washers and locknut for in­stallation of new crossbraces.

Locknut

Locknut

Crossbrace

Wheelchair Frame

Black Dust

Cover

Washer

Hex Screws

FIGURE 1 - ADJUSTING SEA T WIDTH

25

FRAMEPROCEDURE 7

F
R
A

M

E

7. Remove the hex screw, coved spacers, washers and
locknut that secure the two (2) existing crossbraces
together.

NOTE: Note coved spacer, washer and locknut order for
reinstallation.

8. Assemble the two (2) new crossbraces together. Re­fer to FIGURE 1 for hardware orientation.

9. Reinstall the hex screws, washers and locknuts that
secure the bottom of the two (2) new crossbraces to
the wheelchair frame and tighten.

10. Reinstall the hex screws and locknuts that secure the
pivot links to the wheelchair frame and crossbraces
and tighten.

11. Secure wiring harness to the new crossbraces with
tie wraps.

12. Reinstall the black dust covers onto the bottom of the
crossbraces.

13. Install the new back and seat upholstery onto the
wheelchair. Refer to
STERY and REPLACING SEAT UPHOLSTERY in
PROCEDURE 6 of this manual.

14. Reinstall the battery tray and battery boxes/batteries
onto the wheelchair. Refer to
ING BATTERY TRAY and INSTALLING/REMOVING
BATTERY BOXES in PROCEDURE 8 of this manual.

REPLACING BACK UPHOL-

INSTALLING/REMOV-

5. Install plug buttons into the ends of the seat extension
tubes.

Phillips Screws

Washer

Plug Button

Crossbrace

Seat Extension Tube

FIGURE 2 - ADJUSTING SEA T DEPTH

INSTALLING BACK ASSEMBLY ­WHEELCHAIRS BUILT BEFORE
10/2000 ONLY (FIGURE 3)

1. Position the back assembly on the seat upholstery
with the back canes and spreader bar facing UP.

ADJUSTING SEAT DEPTH
(FIGURE 2)

1. Remove the existing seat upholstery from the wheel­chair. Refer to REPLACING SEAT UPHOLSTERY in
PROCEDURE 6 of this manual.

NOTE: If adjusting seat depth of the wheelchair, the seat
upholstery MUST be changed as well.

2. Remove the two (2) plug buttons from the ends of the
crossbraces that are towards the front of the wheel­chair.

NOTE: The two (2) plug buttons will be used in the ends
of the seat extensions.

3. Install the two (2) seat extension tubes into the ends
on the crossbraces. Line up the second mounting
hole from the rear of the seat extension tube with the
front mounting hole in the crossbrace.

4. Install the new seat upholstery onto the wheelchair.
Make sure to line up the mounting holes in the seat
extension tubes with the new seat upholstery. Refer

REPLACING SEAT UPHOLSTERY in PROCE-

to
DURE 6 of this manual.

2. Locate the two (2) back canes between the two (2)
back cane mounting plates.

NOTE: The back canes will fit tightly between the back
cane mounting plates. Some marring of NON-VISIBLE
portions of the back canes and back cane mounting plates
is possible.

3. Slide the two (2) inserts into the back canes. Make
sure the mounting holes in the inserts and the back
canes line up.

4. Determine the mounting holes in the back cane mount­ing plates for the necessary back angle. Refer to
CHANGING BACK ANGLE in this procedure of the
manual.

5. Install the two (2) LOWER hex bolts and washers
through the back cane mounting plate, back cane
and insert at the position determined in STEP 4.

6. Secure the hardware in STEP 5 with two (2) locknuts.
Use Loctite 242 and tighten to 75-inch pounds.

7. Flip the back assembly to the UP position as shown in
FIGURE 3.

26

PROCEDURE 7FRAME

8. Install the two (2) UPPER hex bolts and washers

through the back cane mounting plate, back cane
and insert at the position determined in STEP 4.

W ARNING

The back canes MUST be fastened securely to the
mounting plates BEFORE using the wheelchair. Use
Loctite 242 and torque to 75-inch pounds.

9. Secure the hardware in STEP 8 with two (2) locknuts.
Use Loctite 242 and tighten to 75-inch pounds.

Back Cane Mounting Plates

Inserts

Locknuts

LOWER

Hex Bolts

Washers

Back

Assembly

CHANGING BACK HEIGHT

Wheelchairs Built Before 10/2000
(FIGURE 4)

NOTE: If changing the back height, new back upholstery
may be needed as well. Refer to the following chart to
determine if new back upholstery is needed:

BACK UPHOLSTERY HEIGHT RANGES

16-17-INCHES OR 18-20-INCHES

If the 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 and new back
canes will be needed.

NOTE: Existing hardware and inserts will be reused.

1. Remove the armrests from the wheelchair.

NOTE: Note position of the four (4) hex screws that se­cure the back canes to the wheelchair frame to ensure
proper back angle during installation of new back canes.

2. Cut the tie wraps that secure the bottom of the back
upholstery to the wheelchair frame.

F
R
A

M

E

Back Cane and Spreader

Bar (Pointed UP)

Back Assembly

in UP Position

UPPER

Hex Bolts

Washers

FIGURE 3 - INST ALLING BACK ASSEMBL Y -

WHEELCHAIRS BUILT BEFORE 10/2000 ONLY

3. Remove the four (4) hex bolts that secure the existing
back canes to the seat frame.

4. Remove the back canes, back upholstery and
spreader bar from the wheelchair.

5. Remove the inserts from the existing back canes.

6. Remove the two (2) phillips screws that secure the
back upholstery to the back canes.

7. Loosen, but do not remove the two (2) hex bolts and lock­nuts securing the spreader bar to the existing back canes.

NOTE: Make sure the clamps on the spreader bar are
loose before removing the back canes from the spreader
bar, otherwise the back canes can be scratched.

8. Slide the existing back canes out of the back uphol­stery and spreader bar.

9. Slide the new back canes through the existing/new
back upholstery and spreader bar.

10. Loosely tighten the hex bolts that secure the spreader
bar to the new back canes.

11. Slide the inserts into the bottom of the new back canes.

12. 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, install one (1) of the hex bolts through the
back cane from the inside of the wheelchair to hold the
insert in place.

27

FRAMEPROCEDURE 7

F
R
A

M

E

13. Line up the mounting holes in the back canes with
the mounting holes in the mounting plate.

NOTE: If a reference for the proper mounting holes for
the back angle required is needed, or if changing the
original back angle, refer to

CHANGING BACK ANGLE

in this procedure of the manual.

14. Slide the other two (2) hex bolts through the mount­ing plate, insert and back cane and loosely tighten
with two (2) of the locknuts.

15. Remove the two (2) hex bolts that were holding the
inserts in place and install through the mounting
plates, inserts and back canes and secure with the
other locknuts.

WARNING

The back canes MUST be fastened securely to
the seat frame BEFORE using the wheelchair. Use
Loctite 242 and torque to 75-inch pounds.

16. Secure the two (2) new back canes to the wheel­chair frame with the existing four (4) hex bolts, wash­ers and locknuts. Use Loctite 242 and torque to 75­inch pounds.

18. Secure the bottom of the existing/new back uphol­stery to the wheelchair frame 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 retar­dation of the upholstery.

NOTE: When replacing the back assembly or changing
back height, follow these guidelines for spreader bar
height:

BACK HEIGHT (in inches): 16-17 18-19 20

✪✪

✪ SPREADER BAR HEIGHT

✪✪

(in inches): 579

✪✪

✪

Height of Spreader Bar from Bottom of Back Canes to

✪✪

Top of Spreader Bar Clamp.

19. Reposition the spreader bar at the correct height for
the corresponding back height and torque the mount­ing hardware to 60-inch pounds.

20. Reinstall the armrests onto the wheelchair.

17. Secure the top of the existing/new back upholstery
to the back canes with the two (2) existing phillips
screws.

Spreader Bar

Locknut

Locknut

Back

Cane

Insert

Washer

✪✪

✪

✪✪

Hex Bolt

Mounting Plate - Refer to

CHANGING BACK ANGLE

in this procedure of the

manual.

NOTE: Back upholstery not shown
for clarity. Refer to

REPLACING
BACK UPHOLSTERY in PROCE­DURE 4 of this manual.

Hex Bolts

FIGURE 4 - CHANGING BACK HEIGHT - WHEELCHAIRS BUILT BEFORE 10/2000

28

PROCEDURE 7FRAME

Wheelchairs Built After 10/2000 (FIGURE 5)

1. Remove the two (2) hex bolts, washers and locknuts
that secure the top half of the back cane to the bottom
half of the back cane.

2. Reposition the back cane to one (1) of five (5) pairs of
height adjustment holes:

✪ ✪

✪ HOLE PAIR # 1 2345

✪ ✪

Back Height (in inches) 16 17 18 19 20

Holes numbered from bottom to top for reference only.

✪

(There are no numbers on the back canes.)

3. Reinstall the two (2) hex bolts that secure the top half of
the back cane to the bottom half of the back cane.

WARNING

The top and bottom half of the back canes MUST
be tightened securely together BEFORE using the
wheelchair, otherwise injury or damage may oc­cur. Use Loctite 242 on the hex bolts and torque
to 75-inch pounds.

4. Use Loctite 242 on the hex bolts and torque into the
back canes to 75-inch pounds.

3. Refer to DETAIL "B" in FIGURE 6 to determine the
mounting plate hole for the desired back angle.

4. Reposition the back cane to the position determined
in STEP 3.

5. Reinstall TOP hex bolt, two (2) washers and locknut.
Refer to FIGURE 6 for correct hardware orientation.

WARNING

The back canes MUST be tightened securely to the
wheelchair frame BEFORE using the wheelchair,
otherwise injury or damage may occur. Use Loctite
242 on the hex bolt and torque to 75-inch pounds.

6. Use Loctite 242 on the hex bolt and torque the hex
bolt to 75-inch pounds.

7. Repeat STEPS 2-6 for opposite side of wheelchair.

Washers

TOP Hex Bolt

(Apply Loctite

242 and torque

to 75-inch

pounds)

Locknut

Washers

F
R
A

M

E

5. While holding the hex bolt, reinstall the locknut and
torque to 75-inch pounds.

6. Repeat STEP 5 for the other hex bolt and locknut.

7. Repeat STEPS 1-6 for the opposite back cane.

HOLE

PAIR #

5
4

Top Half of
Back Cane

Locknuts

3
2
1

Bottom Half

Hex Bolts (Apply

of Back Cane

Loctite 242 and torque

to 75-inch pounds)

FIGURE 5 - CHANGING BACK HEIGHT -

WHEELCHAIRS BUILT AFTER 10/2000

CHANGING BACK ANGLE

Wheelchairs Built After 10/2000 (FIGURE 6)

1. Flip the armrests up and out of the way. Refer to
USING/ADJUSTING FLIP BACK ARMRESTS in
PROCEDURE 5 of this manual.

2. Remove the TOP hex bolt, two (2) washers and lock­nut that secure the back cane to the mounting plate
on the wheelchair frame.

DETAIL "B"

90

O

95

O

100

O

105

O

FIGURE 6 - CHANGING BACK ANGLE -

WHEELCHAIRS BUILT AFTER 10/2000

Wheelchairs Built Before 10/2000 (FIGURE 7)

1. Remove armrests from the wheelchair.

2. Remove the hex bolt, washer and locknut from the

top mounting hole of mounting plate and back cane.

NOTE: To keep inserts lined up for reinstallation onto wheel­chair, install one (1) of the hex bolts through back cane
from the inside of the wheelchair to hold the insert in place.

3. Remove hex screw, washer and locknut from bottom

mounting hole of mounting plate and back cane.

4. Reposition back canes into the desired mounting holes

of the mounting plate to obtain a back angle be­tween 85

5. Use Loctite 242 and torque hex bolts to 75-inch pounds.

6. Reinstall the armrests onto the wheelchair.

o

and 105o in 5o increments.

29

PROCEDURE 7FRAME

F
R
A

M

E

BACK CANE MOUNTING
BACK MOUNTING PLATE
ANGLE HOLES HOLES

o

85

90

o

Top

2nd from Top FRONT

Bottom

2nd from

Bottom

Top

Bottom Top FRONT

Bottom

BACK CANE MOUNTING
BACK MOUNTING PLATE
ANGLE HOLES HOLES

o

95

100

105

o

o

Top

2nd from Bottom FRONT

Bottom

Bottom

Top

Top REAR

Bottom

Bottom

Top

FIGURE 7 - CHANGING BACK ANGLE - WHEELCHAIRS BUILT BEFORE 10/2000

REPLACING BACK CANES ­WHEELCHAIRS BUILT AFTER 10/
2000 ONLY (FIGURE 8)

Top Half of Back Canes

1. Flip the armrests up and out of the way. Refer to US­ING/ADJUSTING FLIP BACK ARMRESTS in PRO­CEDURE 5 of this manual.

NOTE: If the back height of the wheelchair is staying the
same, note the position of the existing top half of the back
cane(s) before removing from the wheelchair.

2. Remove the phillips screw and washer that secure the
back upholstery to the existing top half of the back cane.

3. Slide the back upholstery up to expose the two (2)
hex bolts, washers and locknuts.

4. Remove the two (2) hex bolts, washers and locknuts
that secure the existing top half of the back cane to
the bottom half of the back cane.

5. Remove the existing top half of the back cane from
the bottom half of the back cane.

Bottom REAR

2nd from

Bottom Bottom

6. Perform one (1) of the following:
A. Install the new top half of the back cane through

the back upholstery and into the bottom half of
the back cane at the existing position noted.

B. Install the new top half of the back cane through

the back upholstery and into the bottom half of the
back cane to one (1) of the following new posi­tions:

✪ ✪

✪ HOLE PAIR # 12345

✪ ✪

Back Height (in inches) 16 17 18 19 20

Holes numbered from bottom to top for reference only.

✪

(There are no numbers on the back canes.)

7. Reinstall the two (2) hex bolts that secure the new top
half of the back cane to the bottom half of the back cane.

WARNING

The top and bottom half of the back canes MUST
be tightened securely together BEFORE using the
wheelchair, otherwise injury or damage may oc­cur. Use Loctite 242 on the hex bolts and torque to
75-inch pounds.

30

PROCEDURE 7FRAME

8. Use Loctite 242 on the hex bolts and torque into the
back canes to 75-inch pounds.

9. While holding the hex bolt, reinstall the locknut and
torque to 75-inch pounds.

10. Repeat STEP 9 for the other hex bolt and locknut.

11. Securely tighten back upholstery to the new top half
of the back cane with the phillips screw and washer.

12. Repeat STEPS 2-11 for the opposite side of the wheel-
chair, if necessary.

Bottom Half of Back Canes

1. Flip the armrests up and out of the way. Refer to
USING/ADJUSTING FLIP BACK ARMRESTS in
PROCEDURE 5 of this manual.

2. Remove phillips screw and washer that secure back
upholstery to the existing top half of the back cane.

3. Slide the back upholstery up to expose the two (2)
hex bolts, washers and locknuts.

4. Remove the two (2) hex bolts, washers and locknuts
that secure the top half of the back cane to the exist­ing bottom half of the back cane.

5. Remove the top half of the back cane from the exist­ing bottom half of the back cane.

NOTE: If the back angle of the wheelchair is staying the
same, note the position of the existing bottom half of the
back cane(s) before removing from the wheelchair.

6. Remove the two (2) hex bolts, four (4) washers and
two (2) locknuts that secure the bottom half of the
back cane to the wheelchair.

7. Remove the existing bottom half of the back cane
from the wheelchair.

NOTE: The existing insert will be reused.

8. Remove the insert from the existing bottom half of the
back cane.

NOTE: If the back angle needs to be changed, refer to

CHANGING BACK ANGLE

in this procedure of the

manual.

11. Reinstall the two (2) hex bolts, four (4) washers and
two (2) locknuts that secure the new bottom half of
the back cane to the wheelchair.

WARNING

The back canes MUST be tightened securely to
the wheelchair frame BEFORE using the wheel­chair, otherwise injury or damage may occur. Use
Loctite 242 on the hex bolts and torque to 75-inch
pounds.

12. Use Loctite 242 on the hex bolts and torque the hex
bolts to 75-inch pounds.

13. Securely tighten back upholstery to the top half of
the back cane with the phillips screw and washer.

14. Repeat STEPS 2-13 for the opposite side of the
wheelchair, if necessary.

HOLE

PAIR #

5
4
3
2
1

Hex Bolts (Apply

Loctite 242 and

torque to 75-inch

pounds)

Bottom Half

of Back

Cane

Insert

Washers

Top Half of
Back Cane

Locknuts

Locknuts

F
R
A

M

E

9. Install the insert into the new bottom half of the back
cane and line up the mounting holes.

10. Install the new bottom half of the back cane onto the
wheelchair at the position noted.

31

Washers

Wheelchair

Washers

FIGURE 4 - REPLACING BACK CANES -

WHEELCHAIRS BUILT AFTER 10/2000 ONLY

Frame

PROCEDURE 8

BATTERIES

B
A

E
R

E
S

This Procedure includes the following:
Installing/Removing Batteries into/From Battery

Boxes
Connecting Battery Cables
When to Charge Batteries

T
T

I

Charging Batteries
Replacing Batteries
Installing/Removing Battery Tray
Removing/Installing Battery Boxes

NOTE: When securing battery lifting strap to battery,
observe polarity markings located on the ends of the
battery lifting strap, (+) side to POSITIVE (+) battery
terminal/post and (-) side to NEGATIVE (-) battery ter­minal/post.

1. If necessary, remove the battery boxes from the
wheelchair. Refer to
TERY BOXES in this procedure of the manual.

2. Secure the battery lifting strap to battery terminal(s)/
post(s) (FIGURE 1).

INSTALLING/REMOVING BAT-

CAUTION

WARNING

After ANY adjustments, repair or service and BE­FORE use, make sure all attaching hardware is
tightened securely - otherwise injury or damage
may result.

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.

3. Place batteries into battery box bottom.

INSTALLING/REMOVING
BATTERIES INTO/FROM BATTERY
BOXES (FIGURE 1)

NOTE: To remove the battery(ies) from the battery box(es),
reverse the following procedure.

Battery Lifting Strap

Molded Carrying Strap

Or Hold Down Flanges

NOTE: Have the following tools available:

TOOL QTY COMMENTS
Battery Lifting Strap 1 See Note

1/2-inch (6 pt) Box Wrench 1 Not Supplied
7/16-inch (6pt) Box Wrench 1 Not Supplied
3/8-inch (6pt) Box Wrench 1 Not Supplied
Diagonal Cutters 1 Not Supplied

*NOTE: The Battery Lifting strap supplied is for Group
22 NF Batteries ONLY. Refer to the battery manufac­turer for the proper lifting strap and/or battery tools for
U1 battery removal/installation.

W ARNING

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.

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).

Battery

Group 22 NF

ONLY

Battery Terminal(s)/Post(s)

U1 Battery Box

Bottom

Group 22 NF

Battery Box

Bottom

FIGURE 1 - INSTALLING/REMOVING BA TTERIES INTO/

FROM BA TTERY BOXES

32

PROCEDURE 8BATTERIES

CONNECTING BATTERY CABLES

WARNING

NEVER allow any of your tools and/or battery
cable(s) to contact BOTH battery terminal(s)/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 safety glasses is rec­ommended when working with batteries.

Dual U1 or Dual Group 22 NF Battery
Boxes

Perform one (1) of the following methods for connect­ing the battery cable(s):

A. FOR DUAL U1 BA TTERIES - Use direct mount

method. Refer to FIGURES 2, 3 AND 4.

B. FOR DUAL GROUP 22 NF BA TTERIES THAT

HA VE MOUNTING HOLES IN THE BA TTERY
TERMINAL(S)/POST(S) - Use direct mount

method. Refer to FIGURES 2 AND 3.

C. FOR DUAL GROUP 22 NF BA TTERIES THAT

DO NOT HAVE MOUNTING HOLES IN THE
BA TTERY TERMINAL(S)/POST(S) - Use battery

clamp method. Refer to FIGURES 5, 6 AND 7.

DIRECT MOUNT METHOD (FIGURE 2, 3 AND 4).

1. Install battery terminal cap(s) onto battery cable(s) as
follows (FIGURE 2):

DUAL U1 BA TTERIES:
A. ORANGE battery terminal cap onto RED bat-

tery cable.

B. GRAY battery terminal cap onto BLACK battery

cable.

DUAL GROUP 22 NF BA TTERIES:
A. RED battery terminal cap onto RED battery cable.

B. BLACK battery terminal cap onto BLACK bat-

tery cable.

CAUTION

When connecting the battery cables to the
battery(ies), the battery cable(s) MUST be con­nected to the battery terminal(s)/post(s) as
shown in DETAIL “A” or DETAIL “B” of FIGURE 3
(depending on battery type), otherwise dam­age to the battery cable may result when in­stalling battery terminal caps.

2. Connect battery cable(s) to battery(ies) terminal(s)/
post(s) as follows (DETAIL “A” or DETAIL “B”of FIG-
URE 3, depending on battery type):

A. NEGATIVE (-) BLACK battery cable to NEGA-

TIVE (-) battery terminal/post.

B. POSITIVE (+) RED battery cable to POSITIVE

(+) battery terminal/post.

3. Secure the battery cable(s)/ring terminal(s) to the
battery terminal(s)/post(s), BLACK to NEGATIVE
(-) and RED to POSITIVE (+), with the provided
1/4-20 x 7/8-inch hex flange screw and hex flange
locknut. Securely tighten. (DETAIL “A” or DETAIL
“B”of FIGURE 3, depending on battery type).

4. Verify all battery cable(s)/ring terminal(s) are cor­rectly installed and securely tightened.

5. Slide terminal cap(s) down battery cable(s) and onto
battery clamps (FIGURE 3).

6. Secure each terminal cap in place with a tie-wrap
(Use tie-wraps 11-1/2-inches long) (FIGURE 3).

NOTE: It will be necessary to trim excess tie-wrap in order to
install the battery box top(s).

7. Install the battery box top(s).

8. Install the battery box(es) into the wheelchair. Refer
to

INSTALLING/REMOVING BATTERY BOX(ES) in

this procedure of the manual.

NOTE: New Battery(ies) MUST be fully charged BE­FORE using, otherwise the life of the battery(ies) will be
reduced.

B

A
T
T
E

R

I
E
S

INST ALLING BA TTERY TERMINAL CAPS

Battery Cable

Battery Terminal

Cap

NOTE: Only one (1) battery cable and terminal cap shown
for clarity. Both caps install in the same manner.

FIGURE 2 - CONNECTING BA TTERY CABLES -

DIRECT MOUNT METHOD

9. If necessary, charge the battery(ies). Refer to

CHARGING BATTERIES in this procedure of the
manual.

33

PROCEDURE 8

BATTERIES

B
A

E
R

E
S

DET AIL “A”

DUAL U1 BA TTERIES

1/4-20 x 7/8-Inch

Hex Flange Screw

T
T

U1

Battery

I

Positive (+) Battery

Terminal/Post

CONNECT

BA TTER Y

CABLE(S) RING

TERMINAL(S) TO

THIS SIDE OF

BA TTER Y

TERMINAL(S)/

POST(S)

Negative (-)

Battery Terminal/

Post

1/4-20

Hex

Flange

Locknut

POSITIVE (+) Red

Battery Cable

1/4-20

Hex

Flange

Locknut

Group 22NF

NEGATIVE (-) Battery

DUAL GROUP 22 NF BA TTERIES

POSITIVE (+) Battery Terminal/Post

Battery

Terminal/Post

DET AIL “B”

1/4-20 x 7/8-Inch

Hex Flange Screw

NEGATIVE (-)

Black Battery

Cable

CONNECT BA TTER Y

CABLE TO BATTERY

TERMINAL AS SHOWN.

POSITIVE

(+) Battery

Terminal/

Tie-

Wrap

U-1

Battery

Post

DUAL U1 BA TTERIES

Gray

Battery

Terminal

Cap

Orange Battery

Terminal Cap

FIGURE 3 - CONNECTING BA TTER Y CABLES - DIRECT MOUNT METHOD

NEGATIVE

(-) Battery

Terminal/

Post

Wrap

Tie-

Wrap

Group 22 NF

Battery

34

DUAL GROUP 22 NF BA TTERIES

NEGATIVE

(-) Battery

Terminal/

Post

Tie-

BLACK BatteryTerminal

RED

Battery

Terminal

Cap

Cap

POSITIVE
(+) Battery

Terminal/

Post

Tie-

Wrap

PROCEDURE 8BATTERIES

BATTERY CLAMP METHOD (FIGURES 4, 5
AND 6).

CAUTION

The battery clamp of the POSITIVE (+) battery
terminal/post MUST be mounted in the posi­tion shown in FIGURE 5, otherwise the battery
box top cannot be installed properly.

1. Perform one (1) of the following:
A. If the battery clamp of the POSITIVE (+) battery

terminal/post is NOT mounted in the orientation
shown in FIGURE 5, perform the following:

● Loosen the hex nut that secures the battery

clamp to the POSITIVE (+) battery terminal/post.

CAUTION

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.

● Remove the battery clamp from the POSI-

TIVE (+) battery terminal/post.

● Reposition the battery clamp on the POSI-

TIVE (+) battery terminal/post as shown in
FIGURE 4.

● Securely tighten the hex nut that secures

the battery clamp to the positive (+) battery
terminal/post.

B. If the battery clamp on the POSITIVE (+) battery

terminal/post is positioned as shown in FIGURE
4, proceed to STEP 2.

CORRECT ORIENT ATION OF THE POSITIVE (+)

BA TTERY TERMINAL/POST BATTERY CLAMP

POSITIVE (+) Battery Terminal/Post

(Note position of battery clamp)

NEGATIVE (-) Battery

Hex

Nut

Terminal/Post and Battery Clamp

2. Install battery clamp covers onto battery cables as
follows: (FIGURE 5)

A. RED battery clamp cover onto RED battery cable.
B. BLACK battery clamp cover onto BLACK bat-

tery cable.

NOTE: Only one (1) battery cable and battery clamp cover
are shown for clarity. Both battery clamp covers install in
the same manner.

INST ALLING BATTERY CLAMP COVERS

Battery Clamp

Cover

FIGURE 5 - CONNECTING BA TTERY CABLES -

BATTERY CLAMP METHOD

Battery Cable

CAUTION

When connecting the battery cable/ring terminal(s)
to the battery(ies) clamp(s), the battery cable(s)
MUST be connected in the position shown in DET AIL
“A”, otherwise damage may occur to the battery
cable and/or battery clamp covers.

3. Connect battery cable(s) to battery(ies) terminal(s)/
post(s) as follows (DETAIL “A”):

A. NEGATIVE (-) BLACK battery cable/ring termi-

nal between the mounting plate and battery
clamp of NEGATIVE (-) battery terminal/post.

B. POSITIVE (+) RED battery cable/ring terminal be-

tween the mounting plate and battery clamp bat­tery clamp of POSITIVE (+) battery terminal/post.

4. Secure the battery cable(s)/ring terminal(s) to the battery
clamp(s), BLACK to NEGATIVE (-) and RED to POSI­TIVE (+), with exisitng hex screws. Securely Tighten.
(DETAIL “A”)

5. Verify battery cable ring terminal(s) are correctly installed
and securely tightened.

6. Slide battery clamp covers down battery cables and onto
battery terminals. (DETAIL “B”)

B

A
T
T
E

R

I
E
S

Group 22NF

Battery

FIGURE 4 - CONNECTING BA TTERY CABLES -

BATTERY CLAMP METHOD

7. Secure each terminal cap in place with a tie-wrap (Use
tie-wraps 11-1/2-inches long). (DETAIL “B”)

NOTE: It will be necessary to trim excess tie-wrap in order to
install the battery box top(s).

8. Install the battery box top(s).

35

PROCEDURE 8 BATTERIES

B
A

E
R

E
S

9. Install the battery box(es) into the wheelchair. Refer
to

INSTALLING/REMOVING BATTERY BOX(ES) in

this procedure of the manual.

10. If necessary, charge the battery(ies). Refer to

CHARGING BATTERIES in this procedure of the
manual.

NOTE: New Battery(ies) MUST be fully charged BEFORE
using, otherwise the life of the battery(ies) will be reduced.

T
T

I

POSITIVE (+) Battery Terminal/

Post and Battery Clamp

Fuse Box placement

when box top

is installed

Positive (+) RED

Battery Cable

CONNECTING BA TTERY CABLE(S) TO BA TTERY(IES) TERMINAL(S)/POST(S)

NEGATIVE (-) Battery Terminal/

Post and Battery Clamp

Negative (-) BLACK

Battery Cable

TOP VIEW

Fuse

Box

Group 22NF Battery

Positive (+) RED

Battery Cable

Negative (-) BLACK

Battery Cable

Group 22NF Battery

NEGATIVE (-) Battery Terminal/Post

Hex Screw

Mounting Plate

Mounting Plate

Battery Clamp

POSITIVE (+) Battery

NOTE: Battery clamps exploded away for clarification purposes only.

DETAIL “B”

RED Battery Clamp Cover

NEGATIVE (-) Battery

Terminal/Post

EXPLODED

VIEW

Terminal/Post

POSITIVE (+) Battery

Terminal/Post

Tie-Wrap

Tie-Wrap

Group 22NF Battery

FIGURE 6 - CONNECTING BA TTER Y CABLES - BATTERY CLAMP METHOD

BLACK Battery Clamp Cover

36

PROCEDURE 8BATTERIES

WHEN TO CHARGE BATTERIES
(FIGURE 5)

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.

MKIV RII Joystick

BATTERY DISCHARGE INDICATOR (BDI) is located at
the front of the joystick housing and provides information
on the remaining charge in the batteries. At FULL charge
the BDI will be GREEN. As batteries becomes discharged,
the BDI indicator will turn AMBER (YELLOW), then RED
and finally FLASHING RED. If BDI is FLASHING RED, the
user should charge batteries as soon as possible.

NOTE: Accurate readings are displayed when in neutral.

MCC-MKIV X, A or A+ Joystick

BA TTERY GAUGE DISPLAY (BGD) is the bar graph dis­play located on the joysticks. It will keep you informed as to
power availability. A visual warning is given before power
becomes too low to operate the wheelchair. At full charge
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
user should charge the batteries as soon as possible.

Battery

Discharge

Indicator

(BDI)

MKIV- RII JOYSTICK

FIGURE 5 - WHEN TO CHARGE BA TTERIES

Battery

Gauge

Display

NOTE: MKIV X Shown.

MKIV X, A OR A+ JOYSTICK

CHARGING BATTERIES (FIGURE 6)

WARNING

Never attempt to recharge the batteries by at­taching cables directly to the battery terminals
or clamps. Use the recharging plug located on
either the side of the wheelchair frame or on the
front of the joystick.

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.

CAUTION

Always charge new batteries fully BEFORE initial
use or battery life will be reduced.

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 and Use of Battery Chargers

A charger automatically reduces the charge from an initially
high rate to a zero reading at a fully charged condition.

SHUTOFF PROCEDURE.

R2

BASIC/STANDARD

The charger should automatically shut­off when full charge is obtained.

R2

250 SERIES

The charger output and green light will stay
ON until the power switch on the battery
charger is moved to the OFF position.

There are some basic concepts which will help you
understand this automatic process:

The amount of electrical current drawn within a given time
to charge a battery is called “charge rate”. If, due to usage,
the charge stored in the battery is low, the charge rate is
high. (R2

BASIC/STANDARD

only - this is 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 following will occur:

R2

BASIC/STANDARD

The green light will stay illuminated for a
longer period of time followed by a
shorter off time.

R2

250 SERIES

Battery charger rate decreases to a
"trickle charge".

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

Wheelchairs Equipped With MCC-Mark IV
Joystick (Detail "A" of FIGURE 6)

1. Attach the battery charger connector to the charger
cable/battery harness.

B

A
T
T
E

R

I
E
S

37

PROCEDURE 8 BATTERIES

B
A

E
R

E
S

2. Plug the charger’s AC power cord, or extension, into

REPLACING BATTERIES

the grounded 120 VAC wall outlet.

3. Wait until charging is complete.

NOTE: Allow eight (8) hours for normal charging. Larger
batteries (greater than 55 ampere-hours) or severely dis­charged batteries may require up to sixteen (16) hours to

T
T

be properly charged and equalized.
NOTE: R2

BASIC/STANDARD

Only - If charger operates for six-

teen (16) hours and is unable to fully charge batteries, an
internal timer turns charger off and begins to fast blink green
light.

I

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.

Most batteries are not sold with instructions. How­ever, warnings are frequently noted on the cell
caps. Read them carefully, otherwise injury or
damage can occur.

NOTE: Invacare recommends that both batteries be re­placed if one (1) battery is defective.

Recommended Battery Types

The waranty and performance specifications
contained in this manual are based on the use
of deep cycle gel cell or sealed lead acid

WARNING

WARNING

bateries. Invacare strongly recommends their use

Wheelchairs Equipped With Mark IV RII
Joystick (Detail "B" of FIGURE 6)

1. Attach the battery charger connector to the charger
port on the FRONT of the joystick.

2. Plug the charger’s AC power cord, or extension, into

as the power source for this unit.

CAUTION

Failure to use the correct battery size and/or volt­age may cause damage to your wheelchair
and give you unsatisfactory performance.

the grounded 120 VAC wall outlet.

3. Wait until charging is complete.

NOTE: Allow eight (8) hours for normal charging. Larger
batteries (greater than 55 ampere-hours) or severely dis­charged batteries may require up to sixteen (16) hours to
be properly charged and equalized.

DET AIL "A"

From Battery

Charger

Battery Charger

Connector

NOTE: All R2
the chart below for R2

SEAT WIDTH QT Y VOLTS BCI REMARKS

OF CHAIR STOCK NO.

14-inches 2 12 U1 Deep Cycle

16,18, 20-

inches 2 12 22NF Deep Cycle

1. Remove the battery boxes from the wheelchair. Re­fer to

REMOVING/INSTALLING BATTERY BOXES

in this procedure of the manual.

2. Remove existing batteries from battery boxes. Refer to
INSTALLING/REMOVING BATTERIES INTO/FROM

wheelchairs use U1 batteries. Refer to

250-S

BASIC

and R2

STANDARD

wheelchairs.

BATTERY BOXES in this procedure of the manual.

3. Clean the new battery terminals.

DETAIL "B"

Front View of

Joystick

Three (3) Pronged Plug

Top View of Wheelchair

Battery Charger

4. Install new batteries into battery boxes. Refer to
STALLING/REMOVING BATTERIES INTO/FROM
BATTERY BOXES in this procedure of the manual.

IN-

From Battery

Charger

Charger

Port

Joystick

Charger Port

FIGURE 6 - CHARGING BA TTERIES

Battery

Boxes

Cleaning Battery Terminals

WARNING

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 IMMEDIA TELY.

NEVER smoke or strike a match near batteries. If
the caps of the battery cells are removed, NEVER
look directly into them while charging batteries.

38

BATTERIES

PROCEDURE 8

1. Examine battery clamps and terminals for corrosion.

2. Verify plastic caps are in place over battery cell holes.

3. Clean the terminals and inside the battery clamps
by using a battery cleaning tool, wire brush, or me­dium grade sand paper.

NOTE: When done, areas should be shiny, not dull.

4. Carefully dust off all metal particles.

INSTALLING/REMOVING BATTERY
TRAY (FIGURE 7)

NOTE: To remove the battery tray from the wheelchair,
reverse the following procedure.

Hex Screws (Shown in 14 and 16-

18-inch

Wheelchair

Width Position

20-inch

Wheelchair

Width Position

Key Slot

Bracket

Crossbrace

Bolt Bushing

inch Wheelchair Width positions)

Locknut

14-inch Adult
16, 18, 20-inch Low Seat

16, 18, 20-inch Adult

Key Slot Bracket

1. Remove hex screws and locknuts from battery tray.

NOTE: The hex screws will be positioned in correct mount­ing holes for the corresponding width of the wheelchair.

2. Secure the hanger brackets to the battery tray in the
mounting holes where the hex screws were mounted.

3. Attach the key slot bracket located at the front of the
battery tray over the crossbrace bolt bushing under
the seat upholstery of the wheelchair.

NOTE: If wheelchair is 14-inch wide and equipped with
MKIV RII electronics, it may be necessary to turn battery
tray slightly away from controller to install the battery tray.

4. Attach the hanger brackets to the support tubes on
the wheelchair frame.

INSTALLING/REMOVING BATTERY
BOXES (FIGURE 8)

WARNING

NEVER unplug the battery cables by pulling on
the wires. Unplug the battery cables by pulling
on the connector ONL Y. Otherwise injury or dam­age may result.

NOTE: To remove the battery boxes from the wheel­chair, reverse the following procedure.

1. Verify joysick ON/OFF switch is in the OFF position.

2. Position battery boxes onto battery tray. Make sure
battery cables on battery boxes are on same side as
the battery connectors on the wheelchair frame.

3. Connect the battery cables from the battery boxes
to the battery connectors on the wheelchair frame.

4. Connect the battery box retaining strap clip together.

B

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Battery

Tray

Hanger

Bracket

Battery

Tray

Support Tube

FIGURE 7 - INST ALLING/REMOVING BA TTERY TRAY

Retaining

Strap

Retaining Strap Clip

NOTE: Wheelchair Frame not shown for clarity.

FIGURE 8 - INST ALLING/REMOVING BA TTERY BOXES

39

side of wheelchair frame

Battery Boxes

Battery Connections on

ELECTRONICSPROCEDURE 9

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This Procedure includes the following:
Preparing MKIV Joystick for Use
Disconnecting/Connecting MKIV Controller Motor

and Battery Leads
Repositioning MKIV Joystick
Removing/Installing MKIV Controller

WARNING

After ANY adjustments, repair or service and BE-

I

FORE use, make sure all attaching hardware is
tightened securely - otherwise injury or damage
may result.

PREPARING MKIV JOYSTICK FOR
USE (FIGURE 1)

NOTE: The MKIV joystick is factory installed on the right
side of the wheelchair. To reposition the MKIV joystick
onto the left side of the wheelchair, refer to REPOSITION­ING MKIV JOYSTICK in this procedure of the manual.

DISCONNECTING/CONNECTING
MKIV CONTROLLER MOTOR AND
BATTERY LEADS (FIGURE 2)

NOTE: To connect MKIV controller motor and battery leads,
reverse the following procedure.

1. Disconnect the fastening straps that secure the nylon
boot around the connected motor and battery leads.

2. Disconnect the controller left/right motor and battery
leads from leads secured to wheelchair with tie wraps.

Nylon Boot

Battery Lead

Leads From

Controller

1. Turn the lever on the adjustment lock to release the
adjustment lock from joystick mounting tube.

2. Remove the joystick mounting tube from the adjust­ment lock.

3. Reposition the joystick mounting tube so that the joy­stick is facing towards the front of the wheelchair.

4. Slide joystick mounting tube to the desired position.

5. Turn the lever on the adjustment lock to secure the
adjustment lock to the joystick mounting tube.

MKIV Joystick

Joystick

MountingTube

Adjustment

Lock

Left/Right Motor Leads

FIGURE 2 - DISCONNECTING/CONNECTING MKIV

CONTROLLER MOTOR AND BATTERY LEADS

REPOSITIONING MKIV JOYSTICK
(FIGURE 3)

1. Turn the lever on the adjustment lock to release the

adjustment lock from joystick mounting tube (tube).

2. Remove the joystick from the wheelchair.

3. Remove the three (3) hex screws that secure the joy-

stick mounting bracket (bracket), threaded hole half
clamp and opened hole half clamp to the arm tube.

4. Reposition threaded hole half clamp and opened hole
half clamp on opposite arm tube. Make sure threaded
hole half clamp is on the inside of the arm tube.

Adjustment

Lock

FIGURE 1 - PREPARING MKIV JOYSTICK FOR USE

5. While holding the two (2) half clamps, install front hex
screw into the two (2) half clamps and securely tighten.

6. Line up the mounting holes of joystick mounting
bracket with the mounting holes in the two (2) half
clamps.

40

PROCEDURE 9ELECTRONICS

7. Secure the joystick mounting bracket to the two (2)
half clamps with the remaining two (2) hex screws.

8. Slide tube through bracket to the desired position.

9. Slide the adjustment lock over the end of the tube
and secure the adjustment lock to the tube by turning
the lever on the adjustment lock.

Joystick

Threaded

Hole Half

Clamp

Opened Hole

Half Clamp

Arm Tube

Joystick

Mounting

Tube

Hex Screws

Joystick Mounting Bracket

Adjustment Lock

REMOVING/INSTALLING MKIV
CONTROLLER (FIGURE 4)

1. Disconnect the left/right motor leads and battery
leads.

2. Remove the two (2) hex screws that secure the MKIV
controller onto the wheelchair.

NOTE: When installing the MKIV controller onto the
wheelchair, use Loctite 242 on hex screws.

3. Install the MKIV controller onto the wheelchair by
reversing STEPS 1 and 2.

Wheelchair Frame

E
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FIGURE 3 - INST ALLING MKIV JOYSTICK

MKIV Controller

Hex Screws

FIGURE 4 - REMOVING/INST ALLING MKIV

CONTROLLER

41

PROCEDURE 10 RETAINING STRAP

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This Procedure includes the following:
Replacing Battery Box Retaining Strap

WARNING

After ANY adjustments, repair or service and BE-

I
I

FORE use, make sure all attaching hardware is
tightened securely - otherwise injury or damage
may result.

REPLACING BATTERY BOX
RETAINING STRAP (FIGURE 1)

1. Remove the battery boxes. Refer to INSTALLING/

REMOVING BATTERY BOXES in PROCEDURE 8
of this manual.

W ARNING

The retaining strap MUST be fed through the ad­justable end of the battery box retaining strap clip
as shown in FIGURE 1.

3. Feed the existing battery box retaining strap through
the slot in the battery box tray.

4. Feed the new battery box retaining strap through
the inside of the slot in the battery box tray.

5. Feed the new battery box retaining strap through
the adjustable end of the battery box retaining strap
buckle.

6. Reinstall the battery box. Refer to
MOVING BATTERY BOXES in PROCEDURE 8 of
this manual.

INSTALLING/RE-

WARNING

The Battery Box Retaining Strap MUST be fastened
securely in place before using the wheelchair.

2. Feed the existing battery box retaining strap through
the adjustable end of the battery box retaining strap
buckle.

Retaining Strap

Retaining Strap

Buckle

Slot

NOTE: Tray shown by itself for clarity. There is no
need to remove the tray from the wheelchair if the
retaining strap is being replaced.

FIGURE 1 - REPLACING BA TTERY BOX RETAINING STRAP

Battery Box

Tray

42

PROCEDURE 1 1WIRING HARNESS

This Procedure includes the following:
Replacing Wiring Harness

WARNING

After ANY adjustments, repair or service and BE­FORE use, make sure all attaching hardware is
tightened securely - otherwise injury or damage
may result.

REPLACING WIRING HARNESS
(FIGURE 1)

W ARNING

The following procedure should be performed
only by an authorized Invacare dealer or quali­fied technician.

Disassembly

1. Remove the battery boxes. Refer to INSTALLING/
REMOVING BATTERY BOXES in PROCEDURE 8
of this manual.

2. Disconnect the following cables:
a. The right and left motor connectors from the con-

troller connectors.

b. The wiring harness (BLUE) from the controller con-

nector (BLUE).

3. Remove the four (4) phillips screws that secure the
battery connectors and battery connector spacers to
the wheelchair frame.

4. Remove the two (2) phillips screws, washers and lock­nuts that secure the charger cable to the charger cable
mounting bracket.

5. Cut the tie wrap that secures the wiring harness and
motor cables to the crossbraces.

6. Remove the wiring harness from the wheelchair.

Reassembly

1. Secure the two (2) battery connectors of the new bat­tery harness and the battery connector spacers to the
wheelchair frame with the four (4) phillips screws.

2. Secure the charger cable to existing mounting bracket
on the seat frame with the two (2) phillips screws, wash­ers and locknuts.

3. Connect the following cables:
a. The right and left motor connectors to the control-

ler connectors.

b. The wiring harness (BLUE) to the controller con-

nector (BLUE).

4. Re-secure the wiring harness and motor cables to the
crossbraces with new tie wrap.

5. Reinstall the battery boxes. Refer to
REMOVING BATTERY BOXES in PROCEDURE 8
of this manual.

INSTALLING/

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S

Battery Connector

Charger

Cable

Mounting

Bracket

Phillips

Screws and

Locknuts

Spacer

Wiring

Harness

Phillips
Screws

To Controller

From Motors

FIGURE 1 - REPLACING WIRING HARNESS

MKIV RII Joystick

Controller

43

PROCEDURE 12 WHEELS/ANTI-TIPPER

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This Procedure includes the following:

Motor Locks ENGAGED (Drive Position)

Disengaging/Engaging Motors With Motor Locks
Disengaging/Engaging Motors With Clutches
Using/Installing/Adjusting Wheel Locks

L

/

Replacing Pneumatic Tires and Tubes - Front
Casters and Rear Wheels

Installing/Replacing Rear Wheels
Installing/Replacing Front Casters

I

-

Replacing Front Fork

Towards

Outside of

Wheelchair

Motor Locks DISENGAGED (Free Wheel Position)

FIGURE 1 - DISENGAGING/ENGAGING MOTORS

WITH MOTOR LOCKS

Installing/Removing Anti-Tippers

I

Installing Optional Clutch Extension Handles ­Motors With Clutches Only

DISENGAGING/ENGAGING MOTORS
WITH CLUTCHES (FIGURES 2 AND 3)

WARNING

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.

DO NOT engage or disengage the clutches until
the power is in the OFF position.

The clutch engagement/disengagement allows freewheel­ing or joystick controlled operation. Freewheeling allows
an attendant to maneuver the wheelchair without power.
To engage/disengage the clutches:

NOTE: If the wheelchair is equipped with clutch extension
handles, refer to STEP 1 below. If wheelchair is not equipped
with clutch extension handles, proceed to STEP 2.

WARNING

The tabs on the battery box connectors MUST be

DISENGAGING/ENGAGING MOTORS
WITH MOTOR LOCKS (FIGURE 1)

assembled as shown in FIGURE 2. Otherwise the
connectors will not engage completely and
clutch handles could disengage connectors.

W ARNING

DO NOT engage or disengage the motor locks
until the power is in the OFF position.

WHEELCHAIRS

16-20-INCH WIDE WHEELCHAIRS 14-INCH WIDE

The motor lock disengagement/engagement allows free­wheeling or joystick controlled operation. Freewheeling
allows an attendant to maneuver the wheelchair without
power. To disengage/engage the motor locks:

1. Locate the motor lock levers on the motors.

2. Perform one (1) of the following:

DISENGAGE - push motor lock levers until they are
pointing towards outside of wheelchair (free wheeling
position).

ENGAGE - pull motor lock handles until they are point­ing straight up (drive position).

44

Battery

Box

Locknuts

Tab

NOTE: Confirm
that the tabs on

Phillips
Screws

Battery Box

Connector

FIGURE 2 - BA TTERY BOX CONNECTOR T ABS

the battery box
connectors are
assembled as
shown.

Battery

Box

PROCEDURE 12WHEELS/ANTI-TIPPER

1. Confirm that the tabs on the battery box connectors
are assembled as shown in FIGURE 2.

NOTE: If tab on the battery box connectors is not as­sembled as shown in FIGURE 2, remove the phillips
screws and locknuts to assemble the tab onto the con­nector correctly.

2. Locate the clutch handles on motors (FIGURE 3).

CAUTION

If clutch handles are forced to engage in the
wrong direction (FIGURE 3), the motors will be dam­aged and will need to be replaced.

3. Perform one (1) of the following (FIGURE 3):
ENGAGE - Turn clutch handles until they are pointing

towards rear of wheelchair. NEVER try to turn the clutch
handles towards the FRONT of the wheelchair.

DISENGAGE - Turn clutch handles until they are point­ing towards rear wheels. NEVER try to turn the clutch
handles towards the INSIDE of the wheelchair.

TOP VIEW OF WHEELCHAIR

DISENGAGED

(Towards rear

wheels)

ENGAGED

(Towards rear
of wheelchair)

Clutch Handle

NEVER

Force clutch handles in these directions

FIGURE 3 - DISENGAGING/ENGAGING MOTORS

WITH CLUTCHES

Clutch Handle

Using Wheel Locks

The wheelchair is optionally equipped with a pair of inde­pendently operated wheel locks located just in front of the
rear wheels.

1. To engage the wheel locks, grip the handle and push
forward to the lock position.

2. To release, reverse STEP 1.

IMPORT ANT NOTE: DO NOT attempt to drive the wheel­chair when the wheel locks are engaged.

NOTE: Use the wheel locks to hold the wheelchair when­ever the motor locks are disengaged.

Wheel Lock

Handle

FIGURE 4 - USING WHEEL LOCKS

Installing/Adjusting Wheel Locks

NOTE: Before adjusting or replacing the wheel lock as­semblies, ensure that the tires are inflated to the recom­mended psi on the side wall of tire.

1. Position the wheel lock on the wheelchair frame.

2. Loosely install the hex screw that secures the wheel
lock to the wheelchair frame.

3. Make sure wheel lock is disengaged from rear wheel.

4. Measure the distance between the WHEEL LOCK
SHOE and the REAR WHEEL.

5. Slide the wheel lock along the wheelchair until the
measurement is between 5/32 and 5/16-inches.

6. Tighten the wheel lock to the wheelchair frame.

7. Repeat this procedure for the opposite wheel lock.

Wheelchair Frame

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USING/INSTALLING/ADJUSTING
WHEEL LOCKS* (FIGURES 4 AND 5)

W ARNING

*Wheel locks are an OPTION on this wheelchair,
(you may order with or without wheel locks). Trans­fer to and from the wheelchair in the presence of
a qualified healthcare professional to determine
individual safety limits. Invacare strongly recom­mends ordering the wheel locks as an additional
safeguard for the wheelchair user.

Hex Screw

Wheel Lock

Shoe

Rear Wheel

5/32 to 5/16-inch

FIGURE 5 - INST ALLING/ADJUSTING WHEEL LOCKS

45

PROCEDURE 12 WHEELS/ANTI-TIPPER

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8. Disengage the following:
MOTORS w/MOTOR LOCKS - Motor locks. Refer

DISENGAGING/ENGAGING MOTORS WITH

to
MOTOR LOCKS in this procedure of the manual.

MOTORS w/CLUTCHES - Clutches. Refer to

L

/

I

-

I

GAGING/ENGAGING MOTORS WITH CLUTCHES
in this procedure of the manual.

9. Engage the wheel locks and push against the wheel­chair to determine if the wheel locks engage the rear
wheels enough to hold the wheelchair.

10. Repeat STEPS 3-8 until the wheel locks engage the
rear wheels enough to hold the wheelchair.

11. Engage the following:
MOTORS w/MOTOR LOCKS - Motor locks. Refer

DISENGAGING/ENGAGING MOTORS WITH

to
MOTOR LOCKS in this procedure of the manual.

MOTORS w/CLUTCHES - Clutches. Refer to
GAGING/ENGAGING MOTORS WITH CLUTCHES
in this procedure of the manual.

DISEN-

DISEN-

3. Install the new/existing rear wheel onto the motor drive
shaft. Make sure the chamfered side of the wheel
hub is pointing away from the wheelchair.

4. Install washer onto motor drive shaft.

5. Install the NEW locking tab washer onto the motor
drive shaft. Make sure the locking tab is in line with the
keyway of the rear wheel.

6. Apply Loctite 242 to the hex screw.

7. Install the hex screw. Use a torque wrench only and
torque to 90-inch pounds.

8. Examine head of hex screw and locking tab washer.
Make sure one (1) of the tabs on locking tab washer is
parallel with one (1) of the flats on head of hex screw.

9. If one (1) of the tabs on the locking tab washer is NOT
parallel with one (1) of the flats on the head of the hex
screw (FIGURE 6), TIGHTEN the hex screw until the
closest flat and locking tab are parallel.

Keystock

REPLACING PNEUMATIC TIRES AND
TUBES - FRONT CASTERS AND
REAR WHEELS

Chamfered

Side of Wheel

Hub

Motor

Driveshaft

W ARNING

DO NOT use your power wheelchair unless it has
the proper tire pressur e (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 a qualified technician.

Locking Tab

Washer

Keyway

NOTE: If front casters or rear wheels are pneumatic, un­der-inflation causes excessive wear which results in poor
performance of the tires.

INSTALLING/REPLACING REAR
WHEELS (FIGURE 6)

W ARNING

NEVER use a locking tab washer more than once.
ALWAYS use a NEW locking tab washer when in­stalling the rear wheels.

1. Remove the hex screw, lockwasher and washer that
secure the existing rear wheel assembly to the wheel
hub assembly.

2. Use a wheel puller to remove the existing rear wheel
assembly from the motor drive shaft.

NOTE: The keystock in the wheel hub MUST lineup with
the cutout in the gearbox drive shaft.

Washer

Hex Screw (Apply Loctite 242 and use a Torque

Wrench only to Torque to 90-inch pounds)

TIGHTEN Hex Screw if Locking Tab is not

Parallel with Flat on Head

Flat on Head

of Hex Screw

(STEP 9)

Locking Tab Parallel
with Flat on Head of

Hex Screw

(STEP 9)

Locking

Tab

Bend Tab up tight against Flat on

Head of Hex Screw

FIGURE 6 - INST ALLING/REPLACING REAR WHEELS

46

(STEP 10)

PROCEDURE 12WHEELS/ANTI-TIPPER

NOTE: Tighten hex screw only. DO NOT loosen hex screw
to make one of the tabs on the locking washer parallel.

10. Bend the parallel tab of locking tab washer up tight
against flat of the hex screw (FIGURE 6).

INSTALLING/REPLACING FRONT
CASTERS (FIGURE 7)

1. Remove the hex screw, spacers and locknut that
secure the front caster to the fork.

2. Remove the front caster from the fork.

3. Replace front caster and reverse STEPS 1-2.

Fork

Locknut

Hex Screw

Washer

Washer

FIGURE 7 - INSTALLING/REPLACING FRONT CASTERS

Front Caster

REPLACING FRONT FORK
(FIGURE 8)

1. Remove the front caster assemblies from the front
fork. Refer to
CASTERS in this procedure of the manual.

2. Remove the head tube cap.

3. Remove the locknut and nylon washer.

4. Drop the front fork out of the caster head tube.

5. Slide the new front fork into the caster head tube.

NOTE: Check bearing assemblies. Replace if necessary.

6. Make sure front fork is completely in caster head tube.

7. Install nylon washer and secure with locknut.

Improper positioning of the washer will prohibit the
free movement of the front forks.

INSTALLING/REPLACING FRONT

W ARNING

c. Let casters drop to bottom of arc (wheels should

swing once to one-side, then immediately rest in
a straight downward position).

d. Adjust locknuts according to freedom of caster

swing.

e. Test wheelchair for maneuverability.

Head Tube Cap

Locknut

Nylon Washer

Front Fork

FIGURE 8 - REPLACING FRONT FORK

INSTALLING/REMOVING
ANTI-TIPPERS (FIGURE 9)

W ARNING

Anti-tippers MUST be fully engaged and spring
buttons fully protruding out of adjustment holes.

1. Press the release buttons IN and insert the anti-tip­pers with the anti-tipper wheels pointing toward the
ground/floor into the support tubes until the release
buttons lock in place.

2. Measure the distance between the bottom of the anti­tipper wheels and the ground/floor.

NOTE: A 1-1/2 to 2-inch clearance between the bottom of
the anti-tipper wheels and the ground/floor MUST be main­tained at all times.

3. If the distance between the bottom of the anti-tipper
wheels and the ground/floor is not 1/1/2 to 2-inches,
do not use the anti-tippers. Replace anti-tippers and
repeat STEPS 1 and 2.

Support Tube

Release Buttons

Anti-tipper

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8. Install front caster assemblies onto the front fork. Re­INSTALLING/REPLACING FRONT CASTERS

fer to
in this procedure of the manual.

9. To properly tighten caster journal system and guard

against flutter, perform the following check:
a. Tip front of wheelchair off floor.
b. Pivot forks and casters to top of their arc simul-

taneously.

Release

Buttons

1-1/2 to 2-inch

Clearance

FIGURE 9 - INST ALLING/REMOVING ANTI-TIPPERS

47

PROCEDURE 12 WHEELS/ANTI-TIPPER

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INSTALLING OPTIONAL CLUTCH
EXTENSION HANDLES - MOTORS
WITH CLUTCHES ONLY (FIGURE 10)

1. Turn the power to the wheelchair to the OFF position.

L

2. Position the clutch extension handle by the clutch

/

handle on the motor as shown in FIGURE 10.

NOTE: If the clutch handle on the motor is equipped with
a rubber tip, remove the rubber tip before installing the
clutch extension handle.

I

-

3. Slide clutch extension handle onto the clutch handle

I

on the motor.

Clutch Extension

Handle

Remove

Rubber Tip

if Equipped

Clutch

Handle

Set Screw

Motor

NOTE: Make sure vertical portions
of both handles are in line.

NOTE: If necessary, lightly tap the clutch extension handle
onto the clutch handle with a plastic mallet. Make sure
the vertical portions of both handles are in line.

4. Securely tighten set screw on clutch extension handle.

FIGURE 10 - INST ALLING OPTIONAL CLUTCH

EXTENSION HANDLES - MOTORS WITH CLUTCHES

ONLY

5. Repeat STEPS 2-4 for opposite side of wheelchair.

48

MOTOR/GEARBOX PROCEDURE 13

This Procedure includes the following:
Replacing Motor/Gearbox

WARNING

After ANY adjustments, repair or service and BE­FORE use, make sure all attaching hardware is
tightened securely - otherwise injury or damage
may result.

REPLACING MOTOR/GEARBOX
(FIGURE 1)

W ARNING

The following procedure should only be per­formed by a qualified technician.

NOTE: The following procedure can be followed for either
BASIC , STANDARD or 250 SERIES motor/gearboxes.

1. Remove the battery boxes. Refer to INSTALLING/

REMOVING BATTERY BOXES in PROCEDURE 8
of this manual.

2. Disconnect the right and/or left motor connector from

the controller.

CAUTION

The longer socket screws must be positioned in
the mounting holes on the OUTSIDE of the wheel­chair frame and the short socket screws must be
in the mounting holes on the INSIDE of the wheel­chair frame. Otherwise damage to the gearbox
casting can result.

7. Use Loctite 242 and securely tighten the support tube
and motor/gearbox to the wheelchair frame with the
six (6) socket screws. Torque to 60-inch pounds.

8. Reinstall the rear wheels onto the wheelchair. Refer
to

INSTALLING/REPLACING REAR WHEELS in

PROCEDURE 12 of this manual.

9. Reconnect the right and/or left motor connector to the
controller.

10. Repeat procedure for opposite side of the wheelchair,
if necessary.

11. Reinstall the battery boxes. Refer to
REMOVING BATTERY BOXES in PROCEDURE 8
of this manual.

DET AIL "A"

Motor Mount Plate

INSTALLING/

M

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/
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A
R
B
O
X

3. Remove the rear wheels from the wheelchair. Refer
INSTALLING/REPLACING REAR WHEELS in

to
PROCEDURE 12 of this manual.

4. Remove the six (6) socket screws that secure the

motor/gearbox and support tube to the wheelchair
frame.

5. Reposition new motor/gearbox on wheelchair frame.

6. Position the support tube between the wheelchair

frame and the new motor/gearbox. Make sure the
alignment hole in the support tube is positioned with
the alignment pin on the motor mount plate.

NOTE: The alignment pin is the longest of the three (3)
pins and is located in the center of the wheelchair frame
motor mount plate. Refer to DETAIL "A" in FIGURE 1.

NOTE: When the alignment hole in the support tube is
positioned with the alignment pin on the wheelchair frame,
the anti-tipper wheels should be pointing down towards
the ground/floor.

Alignment Pin

Long Socket

Screws (Apply

Loctite 242 and

torque to 60-

inch pounds)

Alignment

Hole

Support Tube

Short Socket Screws

(Apply Loctite 242 and

torque to 60-inch pounds)

Motor Mount

Plate

Wheelchair

Frame

Motor/Gearbox

(Standard Motor

Shown)

FIGURE 1 - REPLACING MOTOR/GEARBOX

49

PROCEDURE 14 RECLINER

This Procedure Includes the Following:
Recliner Operation

Replacing Back or Headrest Upholstery
Adjusting Back or Headrest Upholstery

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Replacing Limit Switch/Actuator
Adjusting Limit Switch
Replacing Recliner Cable Assemblies
Replacing/Adjusting Gas Cylinders
Changing Back Height

3. Stand behind the wheelchair and grasp both back
canes firmly.

4. Pull up on the handles of the recliner cable assem­blies to release the gas cylinders.

5. SLOWLY, push down on the back canes while squeez­ing the handles of the recliner cable assemblies in a
continuous motion.

6. When the back reaches the desired angle, SLOWL Y
let go of the handles of the recliner cable assemblies.

7. To return the back to the full upright position, reverse
the above steps keeping in mind proper body me­chanics.

RECLINER OPERATION (FIGURE 1)

WARNING

ALWAYS make sure that the wheelchair is stable
BEFORE using the recliner option.

NEVER operate the wheelchair while in any re­cline position over 105
FRAME. If the limit switch does not stop the wheel­chair from operating in a recline position greater
than 105o RELATIVE TO THE SEAT FRAME, do not
operate the wheelchair. Adjust the limit switch or
have the wheelchair serviced by a dealer or
qualified technician.

o

RELATIVE TO THE SEAT

Handle

Both gas cylinders MUST be operational and ad­justed properly BEFORE using the recliner. DO NOT
operate the recliner option if only one (1) of the
gas cylinders is operational or adjusted properly.

TO HEALTHCARE PROFESSIONALS/ASSIST ANTS:
Make sure the occupant of the wheelchair is

properly positioned.
When returning the occupant of the wheelchair

to the full upright position, more body strength
will be required for approximately the last twenty
(20) degrees of incline (reverse recline). Make
sure to use proper body mechanics (use your
legs) or seek assistance if necessary to avoid in­jury.

1. Make sure the wheelchair is on a level surface.

2. Inform the occupant of the wheelchair that the wheel­chair is about to be reclined.

Level Surface

FIGURE 1 - RECLINER OPERATION

REPLACING BACK OR HEADREST
UPHOLSTERY (FIGURE 2)

Replacing Back Upholstery

1. Remove the ten (10) or twelve (12) phillips screws
(depending on back height) that secure the back
upholstery to the back canes.

2. Remove the existing back upholstery from the back
canes.

3. Install the new back upholstery onto the back uphol­stery.

4. Install the ten (10) or twelve (12) phillips screws (de­pending on back height) that secure the back uphol­stery to the recliner back canes.

5. Adjust the back upholstery to the desired tautness.
Refer to
HOLSTERY in this procedure of the manual.

50

ADJUSTING BACK OR HEADREST UP-

RECLINER PROCEDURE 14

NOTE: If the back upholstery HEIGHT is being changed,
the back canes must also be changed. Refer to
ING BACK HEIGHT in this procedure of the manual.

NOTE: If the back upholstery HEIGHT is being changed,
it may be necessary to replace the recliner cable assem­blies as well. Refer to
in this procedure of the manual.

REPLACING RECLINER CABLES

CHANG-

Headrest Upholstery

Spreader

Bar

Replacing Headrest Upholstery

1. Remove the six (6) phillips screws that secure the
headrest upholstery to the headrest extensions.

2. Remove the existing headrest upholstery from the
headrest extensions.

3. Install the new headrest upholstery onto the headrest
extensions.

4. Install the six (6) phillips screws that secure the head­rest upholstery to the headrest extensions.

Back Upholstery

FIGURE 3 - ADJUSTING BACK OR HEADREST

UPHOLSTERY

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5. Adjust the headrest upholstery to the desired taut­ness. Refer to
UPHOLSTERY in this procedure of the manual.

Headrest Upholstery

Headrest

Extension

Back

Cane

FIGURE 2 - REPLACING BACK OR HEADREST

ADJUSTING BACK OR HEADREST

Mounting

Screws

Back

Upholstery

UPHOLSTERY

ADJUSTING BACK OR HEADREST
UPHOLSTERY (FIGURE 3)

1. Rotate the spreader bar either:
COUNTERCLOCKWISE (away from back uphol-

stery) to LOOSEN back/headrest upholstery

OR
CLOCKWISE (towards back upholstery) to
TIGHTEN back/headrest upholstery

REPLACING LIMIT SWITCH/
ACTUATOR (FIGURE 4)

1. Remove nylon boot from motor and battery leads.
Refer to DISCONNECTING/CONNECTING MKIV
CONTROLLER MOTOR AND BATTERY LEADS in
PROCEDURE 9 of this manual.

2. Remove primary portion of wiring harness from con­troller. Refer to
PROCEDURE 11 of this manual.

3. Cut the tie wraps that secure the limit switch wire to
the seat frame.

4. Remove the phillips screw that secures the wire re­tainer to the inside of the seat frame.

5. Remove the two (2) phillips screws and washers that
secure the actuator to the gas cylinder pivot block.

6. Remove the two (2) phillips screws and washers that
secure the limit switch sensor to the seat frame.

7. Remove main wiring harness and limit switch sensor.

Phillips Screws (DO

NOT Over-Tighten)

Washers

Wire

Retainer

Phillips
Screws

Tie Wraps

REPLACING WIRING HARNESS in

Limit Switch Sensor

Phillips Screws (DO

NOT Over-Tighten)

Washers

Actuator

Pivot Block

FIGURE 4 - REPLACING LIMIT SWITCH/ACTUA TOR

51

PROCEDURE 14 RECLINER

CAUTION

DO NOT over tighten the phillips screws that se­cure the actuator to the pivot block. Damage to
the actuator will occur.

8. Secure the NEW actuator to the pivot block with the

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two (2) phillips screws and washers.

CAUTION

DO NOT over tighten the phillips screws that se­cure the limit switch to the chair frame.
Damage to the limit switch will occur.

9. Position the limit switch sensor onto the seat frame.

10. Secure limit switch sensor to the seat frame with the
two (2) phillips screws and washers.

11. Secure the wire retainer onto the INSIDE of the seat
frame with the phillips screw.

12. Tie wrap the limit switch wire to the seat frame.

13. Reinstall primary portion of wiring harness from con­troller. Refer to
PROCEDURE 11 of this manual.

14. Reinstall nylon boot onto motor and battery leads.
Refer to
CONTROLLER MOTOR AND BATTERY LEADS in
PROCEDURE 9 of this manual.

REPLACING WIRING HARNESS in

DISCONNECTING/CONNECTING MKIV

3. IF the wheelchair operates, proceed to the following

steps to adjust the actuator on the pivot block:
A. Loosen, but do not remove, the two (2) phillips

screws and washers that secure the actuator to
the pivot block.

B. Slide the actuator UP (towards the top of the

wheelchair).

CAUTION

DO NOT over tighten the phillips screws that se­cure the actuator to the pivot block. Damage to
the actuator will occur.

C. Only tighten the two (2) phillips screws and wash-

ers that secure the actuator to the pivot block until
the actuator does not move.

D. Repeat STEPS 1, 2 and 3 until the wheelchair

does not operate when the gas cylinder rod is
3-21/32-inch long.

Gas Cylinder

Rod Measures

3-21/32-inches

POSITION OVER

105O RELATIVE TO

THE SEA T FRAME

15. Adjust the limit switch. Refer to ADJUSTING LIMIT
SWITCH in this procedure of the manual.

ADJUSTING LIMIT SWITCH
(FIGURE 5)

WARNING

NEVER operate the wheelchair while in any
recline position over 105o RELATIVE TO THE SEAT
FRAME. If the limit switch does not stop the wheel­chair from operating in a recline position greater
than 105o RELATIVE TO THE SEAT FRAME, do not
operate the wheelchair. Adjust the limit switch or
have the wheelchair serviced by a dealer or
qualified technician.

1. Recline the back of the wheelchair until the gas cyl­inder rod measures 3-21/32 of an inch.

2. Turn the power of the joystick to the ON position.

NOTE: ALL segments of the bar graph on the joystick
should start to flash on and off and wheelchair should
not operate.

Phillips Screws and Washers (DO

NOT Over-Tighten)

Pivot Block

FIGURE 5 - ADJUSTING LIMIT SWITCH

Actuator

REPLACING RECLINER CABLE
ASSEMBLIES (FIGURE 6)

NOTE: There are three (3) different cable lengths depend­ing on back height:

CABLE LENGTH BACK HEIGHT

Short 18-1/2 and 20-inches
Medium 22 and 24-inches
Long 26-inches

WARNING

Replace ONE (1) recliner cable assembly at a time
to avoid injury.

1. Cut the tie wraps that secure the existing recliner cable
assembly to the back cane.

2. Remove the pan screw that secures the handle of the
existing recliner cable assembly to the back cane.

3. Loosen the jam nut on the gas cylinder rod.

52

RECLINER PROCEDURE 14

4. Remove the socket screw, washer, nylon washers
and locknut that secure the TOP of the gas cylinder to
the mounting bracket on the back cane.

5. Unscrew the gas cylinder from the operator of the
existing recliner cable assembly but do not remove
the gas cylinder from the pivot block.

6. Remove the operator of the existing recliner cable
assembly from the pivot block.

7. Finger tighten jamnut until it bottoms out on the cylin­der rod (FIGURE 6).

8. Screw cylinder rod of the gas cylinder into pivot block
until shoulder of shoulder of the cylinder rod is flush
with inside of pivot block (FIGURE 6).

CAUTION

DO NOT force the gas cylinder rod into the opera­tor of the recliner cable assembly.

DO NOT cross thread the operator of the recliner
cable assembly with the gas cylinder.

If a space EQUAL to or LESS THAN 1/16-inch be­tween the operator of the cable assembly and
the pivot block is not obtainable, DO NOT use the
recliner cable assembly.

Pan Screw

Handle

Nylon

Washers

Tie

Wraps

Socket Screw

Washer

Locknut

Gas Cylinder

Back Cane

9. Position the operator of the recliner cable assembly
on the inside of recliner seat frame.

10. Place cable operator into pivot block.

11. Thread cylinder rod into cable operator ONLY to the
point where there is no slack in cable, no angular move­ment in cable operator, and recliner cable operator
assembly is no more than a space equal to or less
than 1/16-inch away from pivot block (FIGURE 6).

12. Visually inspect the trigger assembly to ensure that
the cable fitting is seated properly in the trigger as­sembly and that cable end is completely snapped
down into slot (FIGURE 6).

13. Line up the mounting holes of the gas cylinder and
the bracket of the back cane.

14. Reinstall the socket screw through the mounting
bracket of the back cane, nylon washer, gas cylinder,
nylon washer, mounting bracket and washer and se­curely tighten with the existing locknut. T orque to 75-

inch pounds.

15. Adjust the gas cylinders. Refer to
CYLINDERS in this procedure of the manual.

ADJUSTING GAS

REPLACING/ADJUSTING GAS
CYLINDERS (FIGURE 7)

W ARNING

Replace ONE (1) gas cylinder at a time to avoid
injury.

Both gas cylinders MUST be operational and ad­justed properly BEFORE using the recliner. DO NOT
operate the recliner if only one (1) of the gas cylin­ders is operational or adjusted properly.

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Cable

Operator

Gas Cylinder

Rod

No Slack

in Cable

Jam

Nut

Pivot

Block

1/16­Inch
or less

Cable Fitting

Seated Properly

NO Angular Movement in Operator of

the Recliner Cable Assembly

FIGURE 6 - REPLACING RECLINER CABLE

ASSEMBLIES

Cable

Snapped

into Slot

Handle

Replacing Gas Cylinder

1. Loosen the jam nut on existing gas cylinder rod.

2. Remove the socket screw, washer, nylon washers

and locknut that secure the TOP of the gas cylinder to
mounting bracket on back cane.

3. Unscrew the existing gas cylinder from the operator
of the recliner cable assembly and the pivot block and
remove the existing gas cylinder from the wheelchair.

4. Finger tighten jamnut on NEW gas cylinder until it bot­toms out on the cylinder rod (FIGURE 7).

5. Screw the cylinder rod of the new gas cylinder into the
pivot block until the shoulder of the cylinder rod is flush
with the inside of the pivot block (FIGURE 7).

53

RECLINERPROCEDURE 14

CAUTION

DO NOT force the gas cylinder rod into the
operator of the recliner cable assembly.

DO NOT cross thread the operator of the
recliner cable assembly with the gas cylinder.

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If a space EQUAL to or LESS THAN 1/16-inch be­tween the operator of the cable assembly and
the pivot block is not obtainable, DO NOT use
the recliner cable assembly.

6. Position the operator of the recliner cable assembly
on the inside of the recliner seat frame.

7. Place cable operator into pivot block.

8. Thread cylinder rod into cable operator ONL Y to the
point where there is no slack in cable, no angular move­ment in cable operator, and recliner cable operator
assembly is no more than a space equal to or less
than 1/16-inch away from pivot block (FIGURE 7).

9. Visually inspect the trigger assembly to ensure that
the cable fitting is seated properly in the trigger as­sembly and that cable end is completely snapped
down into slot (FIGURE 7).

10. Press the operator of the recliner cable assembly to
extend the new gas cylinder.

11. Line up the mounting holes of the new gas cylinder
and the bracket of the back cane.

12. Reinstall the socket screw through the mounting
bracket of the back cane, nylon washer, new gas
cylinder, nylon washer, mounting bracket and washer
and securely tighten with the existing locknut. Torque

to 75-inch pounds.

13. Adjust the new gas cylinders. Refer to
GAS CYLINDERS in this procedure of the manual.

ADJUSTING

Adjusting Gas Cylinder

1. To adjust the LEFT gas cylinder:
Squeeze the handle of the RIGHT recliner cable as­sembly and try to recline the back. The back should
not recline.

2. If the LEFT side of the back releases without squeez­ing the handle of the LEFT recliner cable assembly,
perform the following steps:

A. Finger tighten the jam nut on the rod of the gas

cylinder until it bottoms out on the rod of the cyl­inder (FIGURE 7).

B. Turn the jam nut on the LEFT gas cylinder COUN-

TERCLOCKWISE approximately one-half (1/2)
revolution.

Nylon Washer

Handle

Socket Screw

Washer

Locknut

Gas Cylinder

Rod

Jam Nut

No Slack

in Cable

1/16-

Inch or

less

Gas Cylinder

Gas

Cylinder

Cable

Snapped

into Slot

Rod Threads

Pivot Block

Cable Fitting

NO Angular Movement in

Operator of the

Recliner Cable Assembly

Handle

Seated Properly

FIGURE 7 - REPLACING/ADJUSTING GAS CYLINDERS

NOTE: The gas cylinder rod will turn.

C. Repeat STEP 1.
D. Repeat STEP B until the LEFT side of the back

DOES NOT recline.

3. To adjust the RIGHT gas cylinder:
Repeat STEPS 1 and 2 for the LEFT handle of the
cable assembly.

CAUTION

Damage to the gas cylinder rod WILL occur if
the following steps are NOT followed when the
jam nut is torqued against the pivot block.

4. Using NO LARGER than 1/4-inch wide, fine toothed
pliers, wrap masking tape around the teeth of the
pliers two (2) or (3) revolutions.

5. Using NO excessive force, hold the gas cylinder rod
just above the jam nut.

6. While holding the gas cylinder rod and using a 17mm
wrench, turn the jam nut CLOCKWISE and torque
the RIGHT and LEFT jam nuts against the RIGHT
and LEFT pivot blocks to 13 ft. lbs.

54

PROCEDURE 14RECLINER

CHANGING BACK HEIGHT
(FIGURE 8)

1. Press the push pins on the headrest extension tubes
in and remove the headrest extension from the back
canes.

2. Remove the existing recliner back upholstery from the
wheelchair. Refer to
REST UPHOLSTERY in this procedure of the manual.

3. Remove the recliner cables from the back canes.
Refer to
SEMBLIES in this procedure of the manual.

4. Remove the shoulder screws, washers and locknuts
that secure the TOP of the gas cylinders to the back
canes.

5. Remove the shoulder screws, washers and locknuts
that secure the back canes to the seat frame.

6. Turn the spreader bar on the existing back canes
CLOCKWISE (toward back upholstery) and remove
the spreader bar from the existing back canes.

7. Thread spreader bar onto the new back cane handles
by rotating the spreader bar COUNTERCLOCKWISE
(away from the back canes).

REPLACING RECLINER CABLE AS-

NOTE: If the spreader bar does not thread onto the back
canes, do not force. Turn the spreader bar around and
repeat STEP 7.

8. Line up the two (2) bottom mounting holes of the back
canes with the two (2) mounting holes in the seat frame.

The back canes MUST be fastened securely to the
seat frame BEFORE using the wheelchair. Torque
to 13 ft. lbs.

REPLACING BACK OR HEAD-

W ARNING

NOTE: There are three (3) different cable lengths depend­ing on back height:

CABLE LENGTH BACK HEIGHT

Short 18-1/2 and 20-inches
Medium 22 and 24-inches
Long 26-inches

NOTE: New recliner cables will be needed if the back
height is changed to a height not within the length of the
original cable.

15. Install the new back upholstery onto the back canes.

Refer to REPLACING BACK OR HEADREST UP­HOLSTERY in this procedure of the manual.

16. Reinstall the headrest extension onto the recliner back
canes.

17. Adjust the tautness of the back and headrest uphol­stery. Refer to
UPHOLSTERY in this procedure of the manual.

Headrest

Extension Tube

ADJUSTING BACK OR HEADREST

NOTE: Upholstery NOT
SHOWN for clarity.

Spreader Bar

Back Cane

Shoulder Screw

Washers

Push

Locknut

Pin

Shoulder Screw

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9. Reinstall the shoulder screw, washer and locknut
through the back cane and seat frame mounting holes.

10. Torque to 13 ft. lbs.

11. Reinstall the shoulder screw through the mounting
bracket of the back cane, nylon washer, mounting
hole in the TOP of the gas cylinder, nylon washer,
mounting bracket and washer.

12. Securely tighten with the existing locknut.

13. Torque to 75-inch pounds.

14. Reinstall the recliner cable assemblies onto the back
canes. Refer to
ASSEMBLIES in this procedure of the manual.

REPLACING RECLINER CABLE

Seat Frame

FIGURE 8 - CHANGING BACK HEIGHT

55

LIMITED WARRANTY

PLEASE NOTE: THE WARRANTY BELOW HAS BEEN DRAFTED TO COMPLY WITH FEDERAL LAW APPLICABLE
TO PRODUCTS MANUFACTURED AFTER JULY 4, 1975.

This warranty is extended only to the original purchaser/user of our products.
This warranty gives you specific legal rights and you may also have other legal rights which vary from

state to state.
With regards to the original purchaser/user only, Invacar e warrants the side frames and crossbraces to be

free from defects in materials and workmanship for a period of five (5) years from date of purchase;
electronics for a period of one (1) year from the date of purchase; motors and gearboxes for a period of
eighteen (18) months for Ranger II models with motors that have motor locks and a period of twelve
(12) months for Ranger II models with motors that have clutches fr om the date of pur chase; all remain­ing components (including gas cylinders for recliners) for one (1) year from the date of pur chase except
upholstered materials, padded materials and tires/wheels. If within such warranty period any product
shall be proven to be defective, such product shall be repaired or replaced, at Invacare's option. This
warranty does not include any labor or shipping charges incurred in replacement part installation or
repair of any such product. Invacare's sole obligation and your exclusive remedy under this warranty
shall be limited to such repair and/or replacement.

For warranty service, please contact the dealer from whom you purchased your Invacare pr oduct. In
the event you do not receive satisfactory warranty service, please write directly to Invacare at the
address at the bottom of this page. Provide dealer's name, address, date of purchase, indicate nature
of the defect and, if the product is serialized, indicate the serial number. Do not return products to our
factory without our prior consent.

LIMITATIONS AND EXCLUSIONS: THE FOREGOING WARRANTY SHALL NOT APPLY TO SERIAL NUMBERED
PRODUCTS IF THE SERIAL NUMBER HAS BEEN REMOVED OR DEFACED, PRODUCTS SUBJECT TO NEGLI­GENCE, ACCIDENT, IMPROPER OPERATION, MAINTENANCE OR STORAGE, COMMERCIAL OR INSTITU­TIONAL USE, PRODUCTS MODIFIED WITHOUT INVACARE'S EXPRESS WRITTEN CONSENT (INCLUDING, BUT
NOT LIMITED TO, MODIFICA TION THROUGH THE USE OF UNAUTHORIZED P ARTS OR A TT ACHMENTS; PROD­UCTS DAMAGED BY REASON OF REP AIRS MADE TO ANY COMPONENT WITHOUT THE SPECIFIC CONSENT
OF INVACARE, OR TO A PRODUCT DAMAGED BY CIRCUMSTANCES BEYOND INVACARE'S CONTROL,
AND SUCH EVALUATION WILL BE SOLELY DETERMINED BY INVACARE. THE WARRANTY SHALL NOT APPLY
TO PROBLEMS ARISING FROM NORMAL WEAR OR FAILURE TO ADHERE TO THESE INSTRUCTIONS.

THE FOREGOING WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER EXPRESS WARRANTIES. IMPLIED
WARRANTIES, IF ANY, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, SHALL NOT EXTEND BEYOND THE DURATION OF THE EXPRESSED WARRANTY PRO­VIDED HEREIN AND THE REMEDY FOR VIOLATIONS OF ANY IMPLIED WARRANTY SHALL BE LIMITED TO
REPAIR OR REPLACEMENT OF THE DEFECTIVE PRODUCT PURSUANT TO THE TERMS CONTAINED HEREIN.
INVACARE SHALL NOT BE LIABLE FOR ANY CONSEQUENTIAL OR INCIDENTAL DAMAGES WHATSOEVER.

THIS WARRANTY SHALL BE EXTENDED TO COMPL Y WITH STATE/PROVINCIAL LA WS AND REQUIREMENTS.

Invacare Corporation www.invacare.com

USA Canada

One Invacare Way 5970 Chedworth Way Invacare is a registered trademark of Invacare
Elyria, Ohio USA Mississauga, Ontario Corporation.
44036-2125 L5R 3T9, Canada ©
800-333-6900 905-890-8838 Form No. 95-148 Part No. 1058610 Rev K (2) - 9/00

2000 Invacare Corporation