Replacing The Trecm Or Tac - Invacare Formula PTO Plus Service Manual

12. Remove the TRSS from the mounting bracket.
13. If desired, loosen the two socket screws securing the mounting bracket to the joystick
mounting tube.
14. Slide the mounting bracket off the joystick mounting tube.
Mounting Bracket
Socket
Screws
TRSS
Joystick
Mounting
Tube

Replacing the TRECM or TAC

NOTE: For this procedure, refer to FIGURE 18.3 on page 132 and FIGURE 18.4 on page 133.
NOTE: Reverse this procedure to install the TRECM or TAC. Ensure the cables are secured as
described in Securing the Cables on page 143.
NOTE: The TRECM can only be installed on TDX wheelchairs.
NOTE: If installing a TAC onto a system that previously had a TRSS or SAC, the TAC must be
programmed after installation. Refer to Programming the TAC on page 142.
1. Use the tilt function to tilt the seat back to 20° to 25°. Refer to Operating the Powered
Tilt System on page 103.
2. Turn the joystick off.
3. Disconnect the joystick.
4. Tilt the PTO Plus back. Refer to Tilting the Seat Assembly on page 81.
5. Remove the shroud listed below from the wheelchair. Refer to the owner's manual
listed in Reference Documents on page 8.
• TDX Wheelchairs - Remove the rear shroud.
• M71 and M91 Wheelchairs - Remove the front shroud.
6. Disconnect the PTO Plus auxiliary power connector from the power take-off
connector of the MK5 controller (FIGURE 18.4).
7. Disconnect the cam switch harness (WHITE connector).
Part No 1125031
Button Head Screws
FIGURE 18.2 Replacing the TRSS
131
SECTION 18—MK5 ELECTRONICS
TRSS
TRSS
Cam Switch Harness
Connector
(WHITE)
Drive Lockout Sensor Connector
(3-pin Molex connector)
™
Formula PTO Plus Powered Seating
Auxiliary Power
Connector