Invacare ARROW MWD - Manual (Page 57)

57
REMOVING/INSTALLING THE
MOTOR (CONVENTIONAL MOTOR
WITH GEARBOX) (FIGURE 5)
Removing
RWD AND MWD MODELS.
1. Disconnect the right and/or left motor connector from
the controller.
2. Remove the two (2) allen screws and washers that
secure the motor to the gearbox.
CAUTION
DO NOT damage the motor/gearbox coupling.
3. Carefully pull the motor away from the gearbox.
ARROW FWD MODEL.
1. Remove the front shroud. Refer to REMOVING/IN-
STALLING SIDE SHROUD ASSEMBLY in PROCE-
DURE 17 of this manual.
2. Remove the counterweight. Refer to REMOVING/
INSTALLING COUNTERWEIGHT in PROCEDURE
17 of this manual.
3. Remove the battery box(es). Refer to INSTALLING/RE-
MOVING GROUP 24 BATTERY BOXES in PROCE-
DURE 9 of this manual.
REMOVING/INSTALLING CASTERS
(FIGURE 3)
WARNING
DO NOT use your power wheelchair unless it has
the proper tire pressure (p.s.i.). DO NOT over-inflate
the tires. Failure to follow these suggestions may
cause the tire to explode and cause bodily harm.
The recommended tire pressure is listed on the side
wall of the tire.
Periodically, the tires will need to be replaced due to wear or
puncture.
Removing Casters
1. Remove the mounting screw, spacers and locknut that
secure the existing caster to the fork.
2. Remove the existing caster from the fork.
Installing Casters
1. Position the new/existing caster into the fork.
2. Reinstall the mounting screw, spacers and locknut that
secure the caster to the fork.
3. Torque locknut to 10-foot pounds (120-inch) pounds.
4. Loosen the locknut 1/8 of a turn.
5. Move the caster side to side.
NOTE: If the caster moves side to side, tighten the locknut
slightly. Repeat STEP 4 until there is no side to side move-
ment of the caster.
Mounting
Screw
Locknut
Mounting
Screw
Locknut
6-INCH 8-INCH
Spacers
FIGURE 3 - REMOVING/INSTALLING CASTERS
Spacers
REPLACING FORKS (FIGURE 4)
1. Remove the caster from the existing fork. Refer to
REMOVING/INSTALLING CASTERS in this proce-
dure of the manual.
2. Remove the head tube cap.
3. Remove the locknut and nylon washer.
4. Drop the existing fork out of the caster head tube.
5. Slide the new fork into the caster head tube.
NOTE: Check bearing assemblies. Replace if necessary.
6. Ensure new fork slides completely into caster headtube.
7. Install nylon washer and secure with locknut.
WARNING
Improper positioning of the washer will prohibit the
free movement of the forks.
8. Install the caster onto the new fork. Refer to REMOV-
ING/INSTALLING CASTERS in this procedure of the
manual.
9. Adjust the forks. Refer to ADJUSTING FORKS in
PROCEDURE 9 of the owner’s manual, 1081227
FIGURE 4 - REPLACING FORKS
Dust Cover
Locknut
Nylon Washer
Caster Headtube
Fork
W
H
E
E
L
S
/
M
O
T
O
R
S
WHEELS/MOTORS PROCEDURE 12