SECTION 11—CONTROLLER AND JOYSTICK
Pronto® M71™ 102 Part No 1118377
Replacing the MK5-NX or MK660 ACC Controller WARNING
DO NOT attempt to perform this procedure with any power supplied to the wheel
chair. The joystick and batteries MUST be disconnected prior to beginning to
remove the MK5-NX controller module. Otherwise, equipment damage and/or
personnel injury may occur.
NOTE: For this procedure, refer to FIGURE11.5 on page 102.
NOTE: There are five cables connected to the MK5-NX or MK660 ACC Controller Module. These
cables must be disconnected before the controller can be removed.
NOTE: Take note of position and orientation of the controller, cables, connectors and mounting
hardware for reinstallation of controller.
1. Remove the seat. Refer to Removing/Installing the Seat Assembly on page 30.
2. Remove the batteries from the wheelchair. Refer to Removing Batteries on page89.
3. Remove the front shroud. Refer to Removing/Installing the Shrouds on page 74.
4. Disconnect the cables (joystick, motors, battery, charger, actuator) from the controller
(Detail “A” or “B” of FIGURE11.4).
5. From inside the wheelchair frame, remove the two mounting screws and rubber
washers that secure the existing controller to the wheelchair frame (Detail “C” of
FIGURE 11.4).
6. Remove the existing controller from wheelchair frame.
7. Reverse STEPS 1-6 to install new controller.
FIGURE 11.5 Replacing the MK5-NX or MK660 ACC Controller
RIGHT Motor Lead LEFT Motor Lead
Battery Cable
Joystick Cable
Wheelchair
Frame
Charger Cable
Mounting Screws Rubber Washer
MK5 Controller
Rubber Washer
DETAIL “A” - MK5-NX DETAIL “C”
DETAIL “B” - MK6600 ACC
Battery Cable
Actuator Cable
Joystick Cable
RIGHT Motor Lead LEFT Motor Lead