Invacare Wheelchair User Manual

Owner's Operator And Maintenance Manual

EXCEL

and

POWER 9000

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.

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WARNING

WARNING

DO NOT OPERATE THIS EQUIPMENT WITHOUT FIRST READING AND

UNDERSTANDING THIS MANUAL. IF YOU ARE UNABLE TO

UNDERSTAND THE WARNINGS, CAUTIONS, AND INSTRUCTIONS,

CONTACT A HEALTHCARE PROFESSIONAL, DEALER OR TECHNICAL

PERSONNEL IF APPLICABLE BEFORE ATTEMPTING TO USE THIS

EQUIPMENT - OTHERWISE INJURY OR DAMAGE MAY RESULT.

THE INITIAL SET UP OF THIS WHEELCHAIR MUST BE PERFORMED BY

AN INVACARE DEALER OR QUALIFIED TECHNICIAN.

PROCEDURES OTHER THAN THOSE DESCRIBED IN THIS MANUAL

MUST BE PERFORMED BY AN INVACARE DEALER OR QUALIFIED

TECHNICIAN.

SPECIAL NOTES

W ARNING/CAUTION notices as used in this manual apply to hazar ds 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 SEA T POSITIONING STRAPS
Invacare recommends that wheelchair users NOT be transported in vehicles of any kind while in wheel-

chairs. 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 - SEA T POSITIONING STRAPS - IT IS THE OBLIGATION OF THE DME DEALER, THERA­PISTS AND OTHER HEALTHCARE PROFESSIONALS TO DETERMINE IF A SEATING 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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T ABLE OF CONTENTS

TABLE OF CONTENTS

The following procedures refer to POWER 9000 and EXCEL

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

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

PROCEDURE 1 - GENERAL GUIDELINES .......................................................................................................... 6

REPAIR OR SERVICE INFORMATION ............................................................................................................... 6

OPERATING INFORMATION ............................................................................................................................. 6

SAFETY/HANDLING OF WHEELCHAIRS .......................................................................................................... 8

PROCEDURE 2 - SAFETY INSPECTION CHECKLIST/TROUBLESHOOTING..................................................... 13

SAFETY INSPECTION CHECKLIST ................................................................................................................ 13

TROUBLESHOOTING GUIDE - MECHANICAL ................................................................................................. 13

TROUBLESHOOTING GUIDE - ELECTRICAL ................................................................................................... 14

CHECKING BATTERY CHARGE LEVEL ........................................................................................................... 14

PROCEDURE 3 - FRONT RIGGINGS ................................................................................................................. 16

INSTALLING/REMOVING FOOTRESTS ........................................................................................................... 16

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

REPLACING HEEL LOOPS .............................................................................................................................. 17

INSTALLING/REMOVING ELEVATING LEGRESTS ........................................................................................... 17

RAISING/LOWERING ELEVATING LEGRESTS AND/OR ADJUSTING CALFPADS ............................................. 17

PROCEDURE 4 - ARMS ..................................................................................................................................... 18

ADJUSTING ARMREST HEIGHT, REMOVING OR REPLACING ARMRESTS ................................................... 18

ADJUSTING CAPTAIN'S SEAT ARMRESTS..................................................................................................... 18

PROCEDURE 5 - UPHOLSTERY/POSITIONING STRAP ..................................................................................... 19

REPLACING SEAT UPHOLSTERY ................................................................................................................... 19

REPLACING SEAT POSITIONING STRAP ........................................................................................................ 19

PROCEDURE 6 - ELECTRONICS ...................................................................................................................... 20

PREPARING MKIV JOYSTICK FOR USE ......................................................................................................... 20

REPOSITIONING MKIV JOYSTICK ................................................................................................................. 20

PROCEDURE 7 - RETAINING STRAP ............................................................................................................... 21

REPLACING BATTERY BOX RETAINING STRAP ............................................................................................ 21

PROCEDURE 8 - CASTERS .............................................................................................................................. 22

ADJUSTING FORKS ....................................................................................................................................... 22

PROCEDURE 9 - BA TTERIES............................................................................................................................ 23

INSTALLING/REMOVING BATTERIES INTO/FROM BATTERY BOXES ............................................................ 23

CONNECTING BATTERY CABLES .................................................................................................................. 24

PROCEDURE 10 - FWD WHEELCHAIRS........................................................................................................... 28

TRANSPORTING EXCEL ................................................................................................................................. 28

ADJUSTING/REPLACING TELESCOPING FRONT RIGGING SUPPORT ........................................................... 29

ADJUSTING FLIP-UP REMOVABLE FOOTBOARD ........................................................................................... 30

ADJUSTING CAPTAIN'S SEAT ........................................................................................................................ 30

REMOVING/INSTALLING CAPTAIN'S SEAT..................................................................................................... 31

DISCONNECTING/CONNECTING LIMIT SWITCH ........................................................................................... 31

REMOVING/INSTALLING SHROUDS .............................................................................................................. 32

REPOSITIONING BATTERY CHARGER CONNECTOR ................................................................................... 33

WHEN TO CHARGE BATTERIES .................................................................................................................... 33

CHARGING BATTERIES ................................................................................................................................. 34

REPLACING BATTERIES ................................................................................................................................35

INSTALLING/REMOVING BATTERY BOXES ................................................................................................... 36

BATTERY TRAY .............................................................................................................................................. 36

ENGAGING/DISENGAGING CLUTCHES ......................................................................................................... 37

PROCEDURE 11 - RWD WHEELCHAIRS ........................................................................................................... 38

TRANSPORTING POWER 9000 ...................................................................................................................... 38

WHEN TO CHARGE BATTERIES .................................................................................................................... 39

CHARGING BATTERIES ................................................................................................................................. 39

REPLACING BATTERIES ................................................................................................................................40

INSTALLING/REMOVING BATTERY BOXES ................................................................................................... 41

BATTERY TRAY .............................................................................................................................................. 41

ENGAGING/DISENGAGING CLUTCHES ......................................................................................................... 41

USING/INSTALLING/ADJUSTING WHEEL LOCKS .......................................................................................... 42

INSTALLING/REMOVING ANTI-TIPPERS ........................................................................................................ 43

INSTALLING OPTIONAL CLUTCH EXTENSION HANDLES .............................................................................. 44

LIMITED WARRANTY ..................................................................................................................................... 47

wheelchair

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s except where specified.

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SPECIFICATIONS

NOTE: All specifications are
approximate.

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Seat Width Range:

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Seat Depth Range:

Back Height Range
Std.:
Opt. Headrest:
Opt. Backrest Ext.:

Back Angle Range:
Seat-to-Floor:
Overall Width (No joystick):
Overall Height:

✪✪

✪Weight

✪✪

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

Armrests:

Upholstery:

SPECIFICATIONS

INTEGRA TED SLING SEAT

16, 18 or 20-in.
16, 17 or 18-in. - In 1-in. increments

(17 and 18-in. by extension)

16, 17, 18, 19 or 20-in. - In 1-in. increments
N/A
N/A

N/A
18-1/2-in.
24-5/8-in.
34-3/8-in. - 16-in. Back Height

90 to 100 lbs.
170 to 180 lbs.
105 to 115 lbs.

Removable, Flip Back, Fixed or
Adjustable Height - Desk and Full Length

Black Nylon

EXCEL

CAPT AIN'S SEAT

BACK TYPE

LOW LOW SOLID SEA T HIGH

(LOB) (LOBSS) (HIB)

19-in. 19-in. 19-in.
17-in. 17-in. 17-in.

16-in. 18-in. 22-in.

N/A N/A 28-in.

23-in. N/A N/A

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- 114

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ª55

22-in. 19-1/2-in. 22-in.

24-3/4-in. 24-3/4-in. 24-3/4-in.

35-in. 35-in. 39-in.

122 to 127 lbs.
203 to 207 lbs.
153 to 157 lbs.

Flip Back - Adjustable Height - Full Length (Std.)

Vinyl or Cloth with Vinyl

ª98

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ª35o - 170

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

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NOTE: Low and High Back Types have an Infinite adjustment. Low Backs with Solid Seat have no adjustment.

INTEGRA TED SLING SEA T AND CAPTAIN'S SEAT

LDRIVE WHEEL POSITION

Overall Length
With 8-in. rear casters and

93 front riggings:
With 8-in. rear casters
and no front riggings:

Drive Wheels/Tires:
Casters w/Precision Sealed Bearings:

Footrest/Legrest:
Battery/Size (Not Supplied):

REAR POSITION MIDDLE POSITION FORW ARD POSITION

47-1/2-in. 47-1/2-in. N/A

32-1/2-in. 33-1/2-in. N/A

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NOTE: Refer to PERCENT AGE OF WEIGHT DISTRIBUTION in PROCEDURE

1 of this manual.

12-1/2 x 2-1/4-in. (Flat Free or Pneumatic)
8 x 1-3/4-in. Semi Pneumatic (Std.), 8 x 2-in. Pneumatic (Opt.)

6 x 2-in. Semi Pneumatic (Opt.)
Swingaway, Removable Adjustable Flip Up Removable Footboard
22NF Gel Cell (Two (2) Required)

PERFORMANCE

Speed (M.P.H.): 0 to 3.8
T urning Radius: > 26-in.
* Range (variable): 17-22 miles
** L W eight Limitation: 250 lbs.

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

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NOTE: Refer to PERCENT AGE OF WEIGHT DISTRIBUTION in PROCEDURE 1 of this manual.

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SPECIFICATIONS

SPECIFICATIONS

NOTE: All specifications are approximate.

Seat Width Range:

Seat Depth Range:
Back Height Range Standard:

Seat-to-Floor:

Overall Width:
Overall Height:

Overall Length
RWD Wheelchairs:

FWD with 93 front riggings:
FWD with no front riggings:

✪✪

✪Weight

✪✪

W/O Batteries:
W/ Batteries and PW93 front riggings
U1 Gel Cell (14-inch chairs):
22NF Gel Cell (16, 18 or 20-inch chairs):
Shipping:

Drive Wheels/Tires
(Flat Free or Pneumatic):

Casters w/Precision Sealed Bearings:

Anti-Tippers:
Footrest/Legrest:
Armrests:

Upholstery:
Battery/Size (Not Supplied)

T wo (2) Required:

POWER 9000

14, 16, 18 or 20-in. - ADULT FRAME
16, 18 or 20-in. - LOW SEAT FRAME

16, 17 or 18-in. (17 and 18-in. by extension)
16, 17, 18, 19 or 20-in.

18-1/2-in.- LOW SEAT
20-1/4-in.- ADULT

21-3/4 to 27-3/4-in. (With MKIV Joystick)
33-1/4 to 37-1/4-in.- LOW SEAT

35-1/4 to 39-1/4-in.- ADULT

36-1/2 to 47-1/4-in.
N/A
N/A

82 lbs.

145 lbs.
157 lbs.
110 lbs.

12-1/2 x 2-1/4-in.
8x 1-3/4-in. Semi Pneumatic (Standard)

8x 2-in. Pneumatic (Optional)
Rotating, Removable (Standard)
Swingaway, Removable
Fixed Height - Desk and Full Length

(Standard) Adjustable Height - Desk
and Full Length (Optional)

Black Nylon

U1 Gel Cell (14-in. chairs), 22NF Gel Cell
(16, 18 or 20-in. chairs)

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

✪✪

PERFORMANCE

Speed (M.P.H.):
T urning Radius:
* Range (variable):

** Weight Limitation:

0 to 4
35-inches
12-14 miles with U1 batteries
18-22 miles with 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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This Procedure Includes the Following:

GENERAL GUIDELINESPROCEDURE 1

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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 ONL Y by individuals certified by Invacare. The final

tuning adjustments of the controller may affect other activities of the wheelchair. Damage to the equip­ment could occur under these circumstances. If non-certified individuals perform any work on these
units, the warranty is voided.

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.
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 unauthorized 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.
AL WAYS wear your seat positioning strap.

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

Failure to follow these suggestions may cause the tire to explode and cause bodily harm. The recom­mended tire pressure is listed on the side wall of the tire.

6

GENERAL GUIDELINES PROCEDURE 1

GENERAL WARNINGS (CONTINUED)

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.
Grounding Instructions:
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 ONLY a three-wire
extension cord having the same or higher electrical rating as the device being connected. In addi­tion, Invacare has placed RED/ORANGE W ARNING TAGS on some equipment. DO NOT remove these
tags. Carefully read battery/battery charger information prior to installing, servicing or operating your
wheelchair.

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

RAIN TEST
INVACARE has tested it’s power wheelchairs in accordance with ISO 7176 Part 9 “Rain Test”. This pro-

vides the end user or his/her attendant 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 IMMEDIATELY.

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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 EXCEL has a weight limitation of 250 lbs. Refer to PERCENT AGE OF WEIGHT DISTRIBUTION in PRO-

CEDURE 1 of this manual.
The Power 9000 has a weight limitation of 250 lbs.
Invacare recommends that only heavy-duty constructed wheelchairs should be used for indi-

viduals weighing more than 250 lbs. Further, the activity level of the individual wheelchair user is
important. For instance, a 170 lbs. active wheelchair user could subject the wheelchair to more
stress than a 250 lbs. user. Invacare recommends that very active users consider the use of heavy­duty constructed wheelchairs.

7

GENERAL GUIDELINESPROCEDURE 1

SAFETY/HANDLING OF

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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.

Use this information only as a “basic” guide. The techniques

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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

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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.

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

Tilting - RWD Wheelchairs Only

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-detach­able) 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.

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.

Stability and Balance

The first assistant should turn the anti-tippers so the wheels

W ARNING

AL WAYS wear your seat positioning strap.

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

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.

the weight distribution.

WARNING

Do not let the wheelchair drop the last few
inches to the ground. This could result in injury
to the occupant.

Coping With Everyday Obstacles

Roll the wheelchair forward and SLOWLY lower the wheel-

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.

chair in one continuous movement. 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 the ground/floor BEFORE using the wheel­chair.

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

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).

TILTING: CURBS

8

GENERAL GUIDELINES PROCEDURE 1

Stairways

W ARNING

DO NOT attempt to move an occupied power
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 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 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:

W ARNING

The weight of the wheelchair without the user and
batteries is still between 82 and 127lbs. 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 wheelchair. Refer
to one (1) of the following:

FWD WHEELCHAIRS - INST ALLING/REMOVING
BATTERY BOXES in PROCEDURE 10 of this manual.

RWD WHEELCHAIRS - INSTALLING/REMOVING
BATTERY BOXES in PROCEDURE 11 of this manual.

3. Bend your knees and keep your back straight.

4. Using non-removable (non-detachable) parts of the
wheelchair, lift the wheelchair off of the ground and
transfer the wheelchair up or down the stairs.

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

ESCALA TORS? SORRY !

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

Transferring to and From Other Seats

W ARNING

ALWAYS turn the wheelchair power OFF and en­gage the 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 casters away from 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.

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
casters pointing away from it.

2. Engage clutches. Refer to one (1) of the following:

FWD WHEELCHAIRS - ENGAGING/DISENGAG­ING CLUTCHES in PROCEDURE 10 of this manual.

RWD WHEELCHAIRS - ENGAGING/DISENGAG­ING CLUTCHES in PROCEDURE 1 1 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.

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Percentage of Weight Distribution

W ARNING

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.

9

GENERAL GUIDELINESPROCEDURE 1

WARNING

Many activities require the wheelchair user to

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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.

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

FWD WHEELCHAIRS ONLY (FIGURE 1).

W ARNING

WIDTH

FIGURE 1 shows the motor mounting positions.

NOTE: The front motor mounting holes are reserved
for future applications.

USERS' WEIGHT 201 TO 250 LBS -

MOTOR MOUNTING POSITIONS

SEA T

16
18
20

16

MIDDLE
MIDDLE
MIDDLE

MIDDLE

MOTOR

MOUNTING

POSITION

SEAT DEPTH

MIDDLE
MIDDLE
MIDDLE

17

18

MIDDLE
MIDDLE
MIDDLE

The overall performance of the wheelchair WILL
be affected by the front wheel mounting position.
The following charts show the mounting position of
the motors for each seat width and depth depend­ing on the factory setting or user's weight. If the
mounting position that corresponds to the user's
weight is different than the factory setting, the mo­tors MUST BE repositioned to maintain proper stabil­ity BEFORE using the wheelchair. Otherwise injury or
damage can occur.

Periodically review the following charts to make sure

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MOTOR

MOUNTING

POSITION

the motor mounting position still corresponds to the
user's weight to maintain the proper stability.

Repositioning the motors MUST be performed by

FIGURE 1 - PERCENT AGE OF WEIGHT DISTRIBUTION -

FWD WHEELCHAIRS ONLY

an Invacare Dealer.

NOTE: If motors are repositioned, the front riggings may
need to be repositioned. Refer to ADJUSTING/REPLAC-

ING TELESCOPING FRONT RIGGING SUPPORT in
PROCEDURE 9 of this manual.

EXCEL FACTORY SETTINGS

MOTOR MOUNTING POSITIONS

SEA T

WIDTH

16
18
20

16

MIDDLE
MIDDLE
MIDDLE

SEAT DEPTH

17

MIDDLE
MIDDLE
MIDDLE

18

MIDDLE
MIDDLE
MIDDLE

USERS' WEIGHT 200 LBS AND UNDER -

MOTOR MOUNTING POSITIONS

SEA T

WIDTH

16
18
20

16

REAR
REAR
REAR

SEAT DEPTH

17

REAR
REAR
REAR

18

REAR
REAR
REAR

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.

10

GENERAL GUIDELINES PROCEDURE 1

Reaching, Leaning, Bending and Bending ­Forward

1. Perform one (1) of the following:

A. Front Wheel Drive Wheelchairs - Position the

rear casters so that they are extended as rear­ward as possible.

B. Rear Wheel Drive Wheelchairs - Position front

casters as far forward as possible.

2. Engage clutches and, if applicable, wheel locks*. DO

NOT A TEMPT TO REACH OBJECTS IF YOU HAVE
TO PICK THEM UP FROM THE FLOOR BY REACH­ING DOWN BETWEEN YOUR KNEES.

W ARNING

*Wheel locks are an OPTION on RWD wheelchairs,
(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.

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.

1. Position wheelchair as close as possible to the de­sired object.

2. Perform one (1) of the following:
A. Front Wheel Drive Wheelchairs - Point rear

casters rearward to create the longest possible
wheelbase.

B. Rear Wheel Drive Wheelchairs - Point front

casters as far forward as possible to create the
longest possible wheelbase.

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

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W ARNING

CAUTION: IT IS VERY IMPORTANT THAT YOU READ THIS INFORMATION 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 sources 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 from the mor e common sources of radiated EMI. This powered wheelchair model as shipped,
has an unknown immunity level.

There are a number of sources of relatively intense electr omagnetic fields in the everyday environment.
Some of these sources are obvious and easy to avoid. Others are not appar ent and exposure is unavoid­able. However, we believe that by following the warnings listed below, your risk to EMI will be minimized.

11

GENERAL GUIDELINESPROCEDURE 1

W ARNING

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

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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 MCC MKIVcontroller for this application 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.

12

SAFETY INSPECTION/TROUBLESHOOTING PROCEDURE 2

This Procedure Includes the Following:
Safety Inspection Checklist

Checking Battery Charge Level

Troubleshooting - Mechanical
Troubleshooting - Electrical

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 4)

l Secure but easy to release; adjustment levers engage properly.
l Adjustable height arms operate and lock securely.

* WHEEL LOCKS (RWD WHEELCHAIRS ONL Y) - (PROCEDURE 11 )

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

l Inspect for rips or sagging.

DRIVE WHEELS

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

wheeling).

CASTERS - (PROCEDURE 8)

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 8)

l Ensure all fasteners are secure.

TIRES

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 dealer 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.

W ARNING

*Wheel locks are an OPTION on RWD wheelchairs, (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.

INSPECT/

ADJUST
WEEKL Y

X

X

X
X

X
X
X

X

X
X

X
X
X

X

X
X

X

X

X
X

INSPECT/

ADJUST

MONTHL Y

X
X

X
X

INSPECT/

ADJUST

PERIODICALL Y

X

X

X
X

X

X

X

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TROUBLESHOOTING - MECHANICAL

CHAIR VEERS

LEFT/RIGHT

X

X
X

SLUGGISH TURN/

PERFORMANCE

X

X

CASTERS

FLUTTER

X

X
X

SQUEAKS AND

RATTLES

X

13

LOOSENESS

IN CHAIR

X

CHAIR 3

WHEELS

X

SOLUTIONS

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.

SAFETY INSPECTION/TROUBLESHOOTINGPROCEDURE 2

TROUBLESHOOTING - ELECTRICAL

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Batteries draw excessive current
when charging.

Battery failure.

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

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Electrical malfunction.
Battery failure.

Malfunctioning battery charger.
Electrical malfunction.

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

Batteries not charged.
Weak batteries.

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

commands. Power "ON", battery
indicator flashes.

Only one (1) drive wheel turns.

Joystick erratic or does not respond
as desired.

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

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

Electrical malfunction.
Electrical malfunction.
One (1) or both clutches disengaged.

Electrical malfunction.
One (1) clutch is disengaged.

Electrical malfunction.
Controller Programed improperly

(Power 9000 Only).
Poor battery terminal connection.

Electrical malfunction.

wheelchair

PROBABLE CAUSE

.

Check batteries for shorted cell. Replace if nec­essary (FWD - PROCEDURE 10, RWD - PROCE­DURE 11).

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

essary (
DURE 11).

Contact Dealer/Invacare for Service.
Poor connections between charger and wheel-

chair. Contact Dealer/Invacare for Service.
Have charger checked.
Replace batteries if necessary (FWD - PROCE-

DURE 10,
Contact Dealer/Invacare for Service.
Contact Dealer/Invacare for Service.
Engage motor locks/clutches (

DURE 10, RWD - PROCEDURE 11).

Contact Dealer/Invacare for Service.
Engage clutch (

PROCEDURE 11).
Contact Dealer/Invacare for Service.
Reprogram controller (Refer to MCC-MKIV con-

troller manual supplied with wheelchair).
Clean terminals (FWD - PROCEDURE 10, RWD -

PROCEDURE 11).
Contact Dealer/Invacare for Service.

FWD - PROCEDURE 10, RWD - PROCE-

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CHECKING BATTERY CHARGE LEVEL

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.

I

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.
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.

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.

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.

SOLUTIONS

RWD - PROCEDURE 11).

FWD - PROCE-

FWD - PROCEDURE 10, RWD -

14

SAFETY INSPECTION/TROUBLESHOOTING PROCEDURE 2

Using Hydrometer to Check Battery Cells
(Lead Acid) (FIGURE 1)

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

W ARNING

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,
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 IMMEDIATELY.

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.

NUMBER OF FLOA TING BALLS

0 Discharged
1 25% Charged
2 50% Charged
3 75% Charged
4 100% Charged

* 5 Overcharged

* Check charging system.

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

9. Flush hydrometer in cold running water by allowing
the water to rise into the hydrometer as far as pos­sible. Do this several times to guard against burn dam­age.

10. Replace the battery caps.

11. Reinstall the battery boxes. Refer to one (1) of the
following:

FWD WHEELCHAIRS - INST ALLING/REMOVING
BATTERY BOXES in PROCEDURE 10 of this manual.

RWD WHEELCHAIRS - INSTALLING/REMOVING
BATTERY BOXES in PROCEDURE 11 of this manual.

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Most batteries are not sold with instructions. How­ever, warnings are frequently noted on the cell
caps. Read them carefully.

1. Remove the battery boxes from the wheelchair. Refer
to one (1) of the following:

FWD WHEELCHAIRS - INST ALLING/REMOVING
BATTERY BOXES in PROCEDURE 10 of this manual.

RWD WHEELCHAIRS - INSTALLING/REMOVING
BATTERY BOXES in PROCEDURE 11 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 Will Vary

According to Charge

FIGURE 1 - USING A HYDROMETER TO CHECK

BA TTERY CELLS (LEAD ACID)

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15