Invacare ARROW MWD - Manual (Page 81)

81
SHOCK REPLACEMENT (FIGURE 5)
1. Remove the group 22 battery box or group 24 battery
boxes. Refer to INSTALLING/REMOVING GROUP
22 BATTERY BOX or INSTALLING/REMOVING
GROUP 24 BATTERY BOXES in PROCEDURE 9
of this manual.
2. Remove the drive wheel from the wheel hub. Refer to
REMOVING/INSTALLING THE DRIVE WHEELS in
PROCEDURE 12 of this manual.
3. GROUP 24 BATTERIES ONLY - Loosen the hex
screw that secures the battery box retainer bar to the
base frame.
4. Remove the mounting screw that secures the top of
the shock to the base frame.
5. Remove the mounting screw and locknut from the bot-
tom of the suspension arm.
6. Remove the shock from the base frame.
7. Install the NEW shock.
8. Perform one (1) of the following sections:
A. GROUP 24 BATTERIES -
● Position retainer clip between shock and bat-
tery box sub-frame making sure the retainer clip
mounting hole is towards the bottom and the
closed end of clip is against battery box retainer
bar.
● Secure the top of shock and retainer clip
to base frame. Apply Loctite 242 and torque
to 160-inch pounds.
● Apply Loctite 242 and torque the hex screw
that secures the battery box retainer bar to
the base frame to 160-inch pounds.
B. GROUP 22 BATTERIES - Secure the top of
shock to base frame. Apply Loctite 242 and
torque to 160-inch pounds.
9. Secure the bottom of the new shock to the sus-
pension arm with the existing mounting screw and
locknut. Apply Loctite 242 and torque to 160-inch
pounds.
10. Install the drive wheel from the wheel hub. Refer to
REMOVING/INSTALLING THE DRIVE WHEELS in
PROCEDURE 12 of this manual.
11. Remove the group 22 battery box or group 24 battery
boxes. Refer to INSTALLING/REMOVING GROUP
22 BATTERY BOX or INSTALLING/REMOVING
GROUP 24 BATTERY BOXES in PROCEDURE 9
of this manual.
STEPS 1 - 3
STEPS 4 - 7
Spacer
Battery Box
Retainer
Bar
Mounting Screws
Retainer
Clip
REAR OF
CHAIR
FRONT OF
CHAIR
Battery Box
FRONT OF
CHAIR
REAR OF
CHAIR
Wiring Harness
w/Bracket
Mounting
Screws
Battery Box
Sub-Frame
Base
Frame
Locknuts
7. Reinstall the mounting screws that secure the bat-
tery box retainer bar to the base frame. Use Loctite
242 and torque to 160-inch pounds (FIGURE 5).
8. Perform STEPS 2-7 of REMOVING/INSTALLING
THE WIRING HARNESS in PROCEDURE 10 of this
manual to complete the wiring harness installation.
9. Install the group 24 battery boxes. Refer to INSTALL-
ING/REMOVING GROUP 24 BATTERY BOXES in
PROCEDURE 9 of this manual.
Closed End
RWD WHEELCHAIRS PROCEDURE 16
R
W
D
W
H
E
E
L
C
H
A
I
R
S
Shock Assembly
(or Rubber Element)
FIGURE 4 -INSTALLING GROUP 24 COMPONENTS