Section 10-Suspension; Elastomers And Suspension; Replacing Rear Elastomers; Replacing Front Elastomers - Invacare A4 Owner's Manual

SECTION 10—SUSPENSION
After any adjustments, repair or service and before use, make sure all attachment hardware is
tightened securely - otherwise, injury or damage may result.
NOTE: The following procedures are for wheelchairs with the suspension option ONLY.

Elastomers And Suspension

NOTE: The performance of the wheelchair will be affected if elastomers ARE NOT the same on BOTH SIDES of the wheelchair.

Replacing Rear Elastomers

NOTE: For this procedure, refer to
1. Use an allen wrench to hold the outer allen screw.
2. While holding the outer allen screw in position, remove
the inner allen screw from the pivot pin.
3. Use the allen wrench to push the pivot pin with outer allen
screw out of the mounting hole.
4. Remove the existing elastomer.
5. Position the new elastomer between the recess in the axle
bracket and the recess in the suspension base.
6. Compress and hold the elastomer between the axle
bracket and the suspension base.
7. Insert the pivot pin into the mounting hole.
8. Install the outer allen screw into the pivot pin.
9. Use an allen wrench to hold the outer allen screw in
position.
10. While holding the outer allen screw, install the inner allen
screw into the pivot pin. Tighten securely.

Replacing Front Elastomers

NOTE: For this procedure, refer to FIGURE 10.2.
DO NOT use excessive force when removing/installing the threaded sleeve from/onto the fork.
Damage to the threaded sleeve may occur.
1. Using two allen wrenches, turn mounting screws in opposite directions and remove one mounting screw from fork.
NOTE: NOTE: One mounting screw will not turn.
2. Remove the threaded sleeve and mounting screw assembly from the fork. DO NOT use excessive force.
3. Remove the EXISTING elastomer from the fork.
4. Install NEW elastomer into fork.
NOTE: Make sure the elastomer sits in the two recessed areas on the fork.
Part No 1110545
WARNING
Outer Allen
Screw
Pivot Pin
Inner Allen Screw
Mounting Holes
FIGURE 10.1 Replacing Rear Elastomers
CAUTION
57
SECTION 10—SUSPENSION
Suspension Base
Recess
Elastomer
Axle Bracket
Recess
A4 Owner's Manual