SWITCH KIT,S 1149892 - Caterpillar

Loosen nuts (6) on all rocker arms (7). Unscrew adjusters (5) on all rocker arms (7) until all valves are fully closed. Note: Failure to ensure that ALL adjusters are fully unscrewed can result in contact between the valves and pistons.
Apply sufficient pressure to fuel injection pump gear (3) in a counterclockwise direction in order to remove the backlash. Lock the fuel injection pump in this position. Refer to Disassembly and Assembly, "Fuel Pump Gear - Remove" for the correct procedure.
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Typical example
Mark gears (1), (2) and (3) in order to show alignment. Refer to Illustration 3. Note: Identification will ensure that the gears can be installed in the original alignment.
Remove fuel pump gear (3). Refer to Disassembly and Assembly, "Fuel Pump Gear - Remove" for the correct procedure.
Remove camshaft gear (1). Refer to Disassembly and Assembly, "Camshaft Gear - Remove and Install".
Remove idler gear (2). Refer to Disassembly and Assembly, "Idler Gear - Remove and Install". Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
B 230-6284 Timing Pin (Camshaft) 1
C 230-6283 Timing Pin (Crankshaft) 1
D 9U-7324 Indicator Bracket
7H-1942 Dial Indicator
3S-3268 Indicator Contact Point
7H-1940 Universal Attachment
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Note: The fuel injection pump must remain locked until the procedure instructs you to unlock the fuel injection pump.
Ensure that number one piston is at the top center position on the compression stroke. Refer to Systems Operation, Testing and Adjusting, "Finding Top Center Position for No. 1 Piston".
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Typical example
If necessary, install Tooling (C) into hole (Y) in the front housing. Use Tooling (C) in order to lock the crankshaft in the correct position. Refer to Systems Operation, Testing and Adjusting, "Finding Top Centre Position for No.1 Piston". Note: Do not use excessive force to install Tooling (C). Do not use Tooling (C) to hold the crankshaft during repairs.
Ensure that all of the components of the front gear group are clean and free from wear of damage. If necessary, replace any components that are worn or damaged.
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Typical example
Install camshaft gear (1). Loosely install bolt (6) and washer (5). Refer to Disassembly and Assembly, "Camshaft Gear - Remove and Install" for more information.
Install Tooling (B) through hole (X) in camshaft