F-code
PS Version no
Section
C-code
S4.1 4110 Steering Handle Head T-code
000
4. Potentiometer The accelerator potentiometer is accessible inside the control handle head by removing the switch plate. The accelerator potentiometer operates off a gear toothed shaft (rack) that is moved when the travel controls are twisted. 1. Park the truck on a level surface and make sure parking brake is applied. 2. Release pressure in hydraulic system by pressing the lowering button on steering control handle. 3. Disconnect battery from unit to prevent accidental operation. 4. Remove the six retaining screws (38) from outer edge of the switch cover (39). NOTE! Do not remove center screw (2) and nut (27). 5. Lift switch cover assembly plate off assembly and lay to one side. 6. Disconnect head wiring harness from stem wiring harness and remove potentiometer wires from head wiring harness plug. The wires are removed by pushing terminals out the back of head wiring harness plug. NOTE! Remember or marking the wire terminals position when removing to make installation easier. 7. Remove two screws (30) securing potentiometer assembly (24) to control head housing (9). Remove and discard potentiometer assembly (24) and gear (25). Replace with new. 8. Install new potentiometer assembly (24) and gear (25) on control head housing (9) and hold in place with screws (43). Do Not tighten completely. 9. Connect ohmmeter leads to potentiometer wires. 10. While holding potentiometer bracket (24) against control head housing (9) and make sure gear (24) © BT Products
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Service Manual
1997-09-24
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