MWD WHEELCHAIRS | PROCEDURE 14 |
REPLACING MOTOR/GEARBOX - R2BASIC AND R2250 SERIES(FIGURE 22)
1.If necessary, remove the shrouds. Refer to REMOV- ING/INSTALLING SHROUDS in PROCEDURE 10 of this manual.
2.Remove the battery boxes. Refer to INSTALLING/ REMOVING BATTERY BOXES in this procedure of the manual.
3.Cut the tie wrap that secures the motor wire to the battery tray mounting bracket.
4.Disconnect the right and/or left motor connector from the controller.
5.Remove the drive wheels from the wheelchair. Refer to REMOVING/INSTALLING DRIVE WHEELS in PROCEDURE 9 of this manual.
6.Remove the dust covers, hex bolt, washers and lock- nut that secure the bottom of the crossbrace to the wheelchair frame
7.Remove the bottom of the crossbrace from the mount- ing bracket on the wheelchair frame.
8.Remove the pin that secures the clutch handle to the existing motor/gearbox.
9.Disconnect clutch handle from existing motor/gear- box.
10.Notemountingpositionofmotor/gearboxonthewheel- chair frame for installation of the new motor/gearbox.
11.Remove the six (6) socket screws that secure the ex- isting motor/gearbox and battery tray mounting bracket to the wheelchair frame.
12.Position the new motor/gearbox and existing battery tray mounting bracket on the wheelchair frame at the position noted in STEP 10 as shown in FIGURE 22.
CAUTION
The longer socket screws must be positioned in the mounting holes on the OUTSIDE of the wheel- chair frame and the short socket screws must be in the mounting holes on the INSIDE of the wheel- chair frame. Otherwise damage to the gearbox may result.
13.Use Loctite 242 and tighten the battery tray mounting bracket and motor/gearbox to the wheelchair frame securely with the six (6) socket screws. Torque to 60- inch pounds.
14.Connect the clutch handle to the new motor/gearbox and line up the mounting holes.
15.Insert the pin through clutch handle and new motor/ gearbox as shown in DETAIL "B" in FIGURE 22.
Battery Motor Connectors (STEPS 4, 19)
STEPS 5, 6 AND 17
Locknut 
Crossbrace
Washer
Hex Bolt
Dust Cover
LONG Socket Screws (Apply
Loctite 242 and torque to
pounds) (STEPS 11, 13)
Wheelchair Frame
SHORT Socket
Screws (Apply | Pin | |
(STEP 8) | ||
Loctite 242 and | ||
| ||
torque to |
| |
pounds) |
| |
(STEPS 11, 13) |
|
Clutch Handle
(STEP 9)
Tie Wrap 
(STEPS 3,
20)
Battery
Tray
Mounting
Bracket
Motor/
Gearbox
DETAIL "B" | Pin (STEP 14) | Motor/Gearbox | |
Clutch Handle | (STEP 14) | ||
Detent Ball | |||
(STEP 14) | |||
M W D
W
H
E
E
L
C H A I R S
FIGURE 22 - REPLACING MOTOR/GEARBOX -
RANGER II MWD BASIC
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