Chairman LIFT MOTOR

Description

Part #PCM745-3264
Chairman Part #017628 For Serial #1001-4189 and Part #007881 For Serial #4190 and above

LIFT MOTOR

• Includes Lift Motor Pulley Kit Part #PCK792-6208 and (3 pieces) Pig Tail Connector Part #RPT013-8817
• Also available: Lift Gear Part #PCG762-6207

Fits: Base and Lift Assembly

Model This Part Fits: Chairman

Installation Instructions for the PCM745 LIFT MOTOR and the PCK792 LIFT MOTOR PULLEY KIT

WARNING: When working on the lift assembly of any dental chair in the full upright position, always brace or prop the chair to prevent any downward motion that could result in personal injury

1. Actuate chair into full upright position. See WARNING above!
   Note: If the Motor is not working, remove the two Screws from the Base/Lift Assembly that holds the Ball Shaft Anchor in place. Then lift the upper section and support it in place with a brace.
2. Disconnect power to the chair
3. Remove attaching Screws and Rubber Bellows to expose the Lift Motor Assembly
4. Prop or brace chair to prevent downward motion. Remove attaching Screws and drop Bellows Cover
5. Note the wire colors between the connectors for future splicing. Unplug the Motor
6. Note position and then remove the (4) Screws and Spacers between the Motor and the Motor Mount. Save for reassembly
7. Slide the Belt off the large pulley and the small pulley. Remove the Lift Motor
   If replacing the Pulley, proceed to Step #8.
   If not replacing the Pulley, proceed to Step #9, and see below
8. If replacing the Pulley, remove the old Pulley, and install the new Pulley at this time
9. Install the new Motor by sliding the Belt over the small pulley and then the large pulley
10. Replace the Spacer(s) from Step #6 between the Motor Mount and the Motor, then tighten the four (4) Screws. Refer to the instructions for proper Belt tensioning
11. Reconnect this Motor to Wire Harness by cutting away both the Motor connector and the Wiring Harness connector. Using the three (3) Pig Tail Connectors included, connect the proper wires by stripping 1/4" of insulation, twisting the correct wires together, inserting them into and then crimping the Pig Tail Connector
12. If the Ball Shaft Anchor was removed to raise the chair, unscrew the shaft out of the Ball Nut and secure the anchor to the base
13. Ensuring safety, remove the support brace installed in Step #1
14. Reconnect power to chair
15. Check operation of chair
16. Reattach the Rubber Bellows

For Planned Maintenance or if the chair begins to drift downwards, order the
Brake Repair Kit (Part #PCK742-3263

The Lift Motor Pulley Kit Part #PCK792-6208 is also available