Replacing Drive Unit (Storm4 X-Plore) - Invacare Storm4 Service Manual

Removing motor/gearbox coupling
1. Remove motor/gearbox unit. See 6.6.1 Replacing drive
unit, page 22 or 6.6.3 Replacing drive unit (Storm4
X-plore), page 23.
2.
Loosen and remove self-securing nut (4).
3. Remove carriage bolt, which secures the sealing ring (2).
4. Carefully bend sealing ring apart and remove it.
WARNING!
Risk of damage to the mobility device if the
coupling is not serviced correctly.
– Be careful not to damage the coupling
mechanism during maintenance work.
5. Carefully pull motor (3) and gearbox (1) apart.
6. Remove component parts of the coupling.
7. If necessary replace the coupling.
Installing motor/gearbox coupling
1. Place new clutch (7) on the motor axle. Pay attention to
the position of the groove.
2. Position locking ring (5) on motor (4) or gearbox (1).
3. Carefully insert motor into gearbox. Pay attention to the
position of the groove in the axle of the gearbox. If
necessary, rotate motor and gearbox to correct position.
4. Insert carriage bolt through locking ring. Do not forget
spacer sleeve (2).
5. Install washer and self-locking nut.
6. Do not tighten self-locking nut completely, as the motor
orientation must be adjusted during installation.
7. Install motor / gearbox unit. See 6.6.1 Replacing drive
unit, page 22.
1533060-M

6.6.3 Replacing drive unit (Storm4 X-plore)

WARNING!
Risk of crushing
Mobility device is very heavy. Risk of injury to
hands and feet.
– Use proper lifting techniques.
Risk of injury caused by uncontrolled movement
of mobility device
– Switch power supply off (ON/OFF key).
– Engage drive.
– Before raising mobility device, secure wheels by
blocking them with wedges.
CAUTION!
Risk of crushing
The motor gearbox unit is extremely heavy. Risk
of injury to hands.
– Note high weight.
• 5 mm Allen key
• 6 mm Allen key
• 13 mm socket wrench
• 19 mm socket wrench
• Long wooden blocks, min. 14 x 14 x 30 cm
Removing motor/transmission unit
1. Remove rear and center battery shrouds as described in
6.8.1 Replacing rear shroud, page 38 and 6.8.2 Replacing
center shroud, page 38.
2. Pull motor plug out of power module.
3. Open cable clamps and expose motor cable.
4. Remove drive wheel. See 6.7.2 Replacing drive wheel,
page 34.
5. Remove wheel hub. See 6.7.4 Replacing drive wheel
hub, page 36.
6.
Remove mud guard. See 6.8.7 Replacing mud guard,
page 40.
7. Remove securing clip (4).
8. Remove spacer (3).
9. Carefully remove bolts (1) which connect shock absorber
(2) to swing arm (5).
10. Loosen four screws (6).
11. Remove screws together with washers.
Service
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