COUNTERWEIGHT 1880477 - Caterpillar

Disassembly Procedure
Start By:
Record the governor settings. Refer to Systems Operation, Testing and Adjusting, "Governor - Adjust" for the correct procedure.
Remove the engine front housing. Refer to Disassembly and Assembly, "Housing (Front) - Remove" for the correct procedure.
Personal injury can result from being struck by parts propelled by a released spring force.Make sure to wear all necessary protective equipment.Follow the recommended procedure and use all recommended tooling to release the spring force.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g03343534
Illustration 2 g03343535
Remove spring (4) from arm (2) on the assembly of throttle control (1).
Remove bolts (5) and remove the assembly of throttle control (1) from front housing (3).
Remove gasket (6).
Illustration 3 g03343536
Remove shaft (9) from front housing (3).
Remove lever assembly (7) from front housing (3).
Remove sealing washer (8) from shaft (9).
Illustration 4 g03343538
If the engine is equipped with an angleich unit, remove angleich unit (10) from lever assembly (7).
Illustration 5 g03343540
Illustration 6 g03343542
Remove silicon rubber bung (16).
Disconnect spring (13) from front housing (3).
Remove nut (15) and remove sealing washer (14) from front housing (3).
Remove shaft (11) and remove lever assembly (12) from front housing (3).
Illustration 7 g03343543
The position of fuel screw (17) controls the emissions of the engine. Do not remove the fuel screw unless a different front housing will be installed. Do not adjust the fuel screw. Refer to Systems Operation, Testing and Adjusting, "Governor" for further information.
If necessary, remove the tamper proof cap (20), locknut (19), and sealing washer (18) from front housing (3).
Remove fuel screw (17).