Removing/Installing The Spring Assist Assembly - Invacare Formula PTO Plus Service Manual

3. Align the cam harness cable mounting holes with the mounting holes in the tilt
assembly (Detail "A").
4. Secure the cam harness cable to the tilt assembly using the two cap screws.
5. Connect the cam harness cable to the actuator connector on the TRSS, SAC, TAC or
controller harness (MK6i).
6. Tie-wrap the cam harness cable as noted in STEP 6 of Removing the Cam Harness
Cable on page 114.
7. Install the actuator shroud. Refer to Removing/Installing the Actuator Shroud on
page 107.
8. Connect the joystick.
9. Turn the joystick on.
10. Use the tilt function to return the seat to the down position.
11. Test the operation of the tilt system to ensure no cables are being pulled, crushed or
damaged. If necessary, remove tie-wraps and reposition new tie-wraps to secure the
cables and prevent damage.

Removing/Installing the Spring Assist Assembly

DO NOT install the spring assist assembly onto M71 wheelchairs. This option is for
M91 and TDX wheelchairs only. Otherwise, injury or damage may occur.
NOTE: For this procedure, refer to FIGURE 16.8 on page 117.
Removing
1. Remove the seat pan. Refer to Removing/Installing the Seat Pan on page 83.
2. Remove the actuator shroud. Refer to Removing/Installing the Actuator Shroud on
page 107.
3. If possible, use the tilt function to tilt the seat back to at least 20°.
4. Turn the joystick off.
5. Disconnect the joystick.
6. Examine the spring retainer and the spring assist assembly for damage. If damaged,
DO NOT reinstall these parts. Contact Invacare to order replacements for these parts.
7. Remove the Mounting screw securing the spring retainer to the spring assist assembly
(Detail "A").
8. Unthread the spring retainer to remove it from the spring assist.
Part No 1125031
WARNING
115
SECTION 16—TILT
™
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