PLATE 2278170 - Caterpillar

Illustration 1(A) 28.5 mm (1.12 inch) Diameter Hole(B) 7.5 mm (0.30 inch) Diameter Hole(C) 22.22 mm (0.875 inch)1. Modify the floor plate as shown in Illustration 1. Ensure that there are no obstructions before you drill through the floor plate.2. Install the 2H-1855 Dimmer Switch As (1) in the modified floor plate. Use the two 4B-1320 Screws (2) and the two 8T-4205 Washers (3) to secure the switch.3. Remove the front cab cover.
Illustration 2 - 769D, 771D, 773D, 776D, 777D Off-Highway Trucks
Illustration 3 785C, 789C, 793C Off-Highway Trucks4. Disconnect the 12-pin plug from the steering column multi-functional switch (12-pin receptacle).5. Install the 201-1131 Harness As (4) between the 12-pin plug and receptacle. 6. Connect the A608B grey eyelet (Harness As.) to the BAT. terminal at the 2H-1855 Dimmer Switch As (1).7. Connect 619B green eyelet (Harness As.) to the center terminal at the 2H-1855 Dimmer Switch As (1).8. Safely route and clip harness and wires along points shown in Illustration 2 and in Illustration 3. Properly securing harness and wires will prevent excessive rubbing and vibration.9. Re-install the front cab cover.COPYRIGHT 2001 CATERPILLAR ALL RIGHTS RESERVED