RESISTOR AS 2869022 - Caterpillar

To prevent possible injury, do not use the starter to turn the flywheel. Hot engine components can cause burns. Allow additional time for the engine to cool before measuring valve clearance.
This engine uses high voltage to control the fuel injectors.Disconnect electronic fuel injector enable circuit connector to prevent personal injury.Do not come in contact with the fuel injector terminals while the engine is running.
Failure to follow the recommended procedure or the specified tooling that is required for the procedure could result in damage to components.To avoid component damage, follow the recommended procedure using the recommended tools.
The engine valve lash and the injector lash must be within specifications prior to adjusting the compression brake's slave piston lash. Refer to Testing and Adjusting, "Engine Valve Lash - Inspect/Adjust" for the correct procedure for inspection of the engine valve lash. Refer to Testing and Adjusting, "Electronic Unit Injector - Adjust" for the proper procedure for inspection of the injector lash adjustment.Note: The slave piston lash adjustment must be performed while the engine is cold. If the engine is warm, allow the engine to cool prior to performing the following adjustments.Use the following procedure to adjust the slave piston lash on cylinders 1, 3, and 5:Put the No. 1 piston at the top center position on the compression stroke. See Testing and Adjusting, "Finding Top Center Position for No. 1 Piston" for further details.Jake Brake Compression Brake Adjustment
Illustration 1 g01102453
Typical configuration for Jake Brake's engine compression brake
(1) Slave piston adjustment screw
(2) Slave piston
(3) Exhaust valve rocker arm
Prior to adjusting the lash setting for the engine compression brake, check the identification plate that is on the compression brake's casting in order to determine the model that is installed on your engine. You must have this model number and the engine's serial number prefix in order to determine the lash setting for your engine.
Table 1
Slave Piston Lash Setting
Jake Brake Compression Brakes
Serial Number Prefix and Model Number(1) Horsepower Rating Slave Piston Lash Setting
BXS1-01546
Jake Brake 340C All ratings 0.89 0.08 mm (0.035 0.003 inch)
BXS01547-UP
Jake Brake 340E All ratings 0.84 0.08 mm (0.033 0.003 inch)
(1) Check the identification plate that is on the compression brake's casting in order to determine the model that is installed on your engine.Note: The slave piston lash settings are specific to the model number of the compression brake and to the serial number prefix of the engine. Use these settings only for the compression brakes and serial number prefixes that are specified in the table.
Loosen the locknut and back out slave piston adjustment screw (1) until the slave piston is not in contact with exhaust valve rocker arm (3).
Insert the appropriate feeler gauge between the foot of the slave piston (2) and the exhaust valve rocker arm. Refer to Table 1 for the correct slave piston lash setting.
Turn the slave piston adjustment screw in a clockwise direction until the slave piston tightens against the feeler gauge. Tighten the adjustment screw for one additional turn in the clockwise direction.