Replacing Or Rotating Motor-Gearbox Unit Sealing; Ring; Replacing Motor-Gearbox Coupling - Invacare Bora XTR Service Manual

5.
Use scale to align motor to centre axis (1):
• 2-pole motors:
– Left: 200°
– Right: 280°
• 4-pole motors:
– Left: 280°
– Right: 280°
6. Make sure that motor cable cannot be pinched or
bent, and that it is not exposed to chafing in any
place. The coupling lever must be able to move to the
positions "Driving" as well as "Pushing".
7. Tighten self-locking nut (4) of sealing ring to a torque
of 4 Nm.
8. Connect motor cable plug.
9. Install parts in reverse order.
10. If LiNX system is used, perform calibration process.
See Suggested programing procedure in LiNX service
manual.
11. Test all functions.
5.7.5 Replacing or Rotating Motor-Gearbox
Unit Sealing Ring
CAUTION!
Risk of crushing
The motor-gearbox unit is very heavy. Risk of
injury to hands.
– Pay attention to the heavy weight.
• 10 mm socket wrench
Fig. 5-11
Removing Sealing Ring
1. Remove motor-gearbox unit. See 5.7.4 Replacing
Motor-Gearbox Unit, page 20.
2. Loosen and remove self-securing nuts (4) including
washers.
3. Remove carriage bolt, which secures sealing ring (2).
4. Carefully bend sealing ring apart and remove it.
1528338-Q
Fig. 5-10
Installing Sealing Ring
1. Install sealing ring so that square hole for carriage bolt
is on inside of mobility device.
2. Insert carriage bolt through sealing ring.
3. Install washer and self-locking nut.
4. Do not tighten self-locking nut completely, as the
motor orientation must be adjusted during installation.

5.7.6 Replacing Motor-Gearbox Coupling

CAUTION!
Risk of crushing
The motor-gearbox unit is very heavy. Risk of
injury to hands.
– Pay attention to the heavy weight.
• 10 mm socket wrench
Removing Motor-Gearbox Coupling
1. Remove motor-gearbox unit. See 5.7.4 Replacing
Motor-Gearbox Unit, page 20.
2.
Loosen and remove self-securing nut (4).
3. Remove carriage bolt, which secures sealing ring (2).
4. Carefully bend sealing ring apart and remove it.
WARNING!
Risk of damage to mobility device if
coupling is not serviced correctly
– Be careful not to damage coupling
mechanism during maintenance work.
5. Carefully pull motor (3) and gearbox (1) apart.
6. Remove component parts of coupling.
7. If necessary replace coupling.
Installing Motor-Gearbox Coupling
Fig. 5-13
1. Place new clutch (7) on motor axle. Pay attention to
position of groove.
2. Position locking ring (5) on motor (4) or gearbox (1).
Fig. 5-12
Service
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