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Invacare® AVIVA™ FX Series
6.7.8 Replacing Suspension Spring
CAUTION!
Risk of Crushing to Hands and Feet by Weight of Component
Heavy components may cause injury or damage if dropped or not properly secured.
– Pay attention to hand and feet.
– Use proper lifting techniques.
– Properly secure heavy equipment or components when servicing.
CAUTION!
Risk of Uncontrolled Movement of Mobility Device
Uncontrolled movement of the mobility device can cause injury or damage.
– Power down mobility device.
– Engage drive.
– Before raising mobility device, secure wheels by blocking them with wedges.
– Prevent the mobility device from tipping by propping it up on wooden blocks which are long and wide enough
under the battery case. If the wooden blocks are too short or too high, the mobility device can still tip.
•
10 mm socket wrench
•
3/4" socket wrench (if needed)
•
19 mm socket wrench (if needed)
•
8 mm Allen key (if needed)
•
Oblong wooden blocks (at least 14 x 14 x 30 cm)
1. Replace rubber bumper. Refer to 6.7.6 Replacing
Rubber Bumper, page 30.
2. Rotate rear swing arm A down to free suspension
spring C.
3. Remove suspension spring.
4. Install parts in reverse order
Tighten the hardware as listed below:
•
Nut securing rubber bumper to 8.5 Nm
5. If suspensions spring does not remove / install freely,
perform following steps:
A. Remove drive wheel. Refer to 6.8.6 Replacing Drive
Wheel (1–Bolt Installation), page 37.
B. Remove rear shock damper screw D and washer E.
C. Remove rear swing arm nut G and washer H.
D. Slide rear swing arm F and motor/gearbox unit I
away from base along battery box pivot pin J to gain
additional clearance for suspension spring removal /
installation.
Tighten the hardware as listed below:
•
Shock damper screws D to 40.1 Nm
•
Drive wheel nut to 61 Nm
•
Rear swing arm nut G to 16.3 Nm
32
A
B C
Fig. 6-28
Fig. 6-29
Fig. 6-30
1675507-A
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