Group 170
Every:
Three Years
Caterpillar: Engine Valves and In-
jector Preload
Engine valve lash adjustment is checked and, if neces-
sary, adjusted every third year. At the same time, adjust
the injector preload. Refer to the Caterpillar Service
Manual for correct procedure.
Caterpillar: Engine Compression
Brake Slave Piston Lash
If the engine is equipped with an engine compression
brake, adjust the slave piston lash after the engine
valves are adjusted. Make the adjustment with the en-
gine stopped. Refer to the Caterpillar Service manual for
adjustment information.
Every:
Four Years
Caterpillar: Long-Life Coolant
Change
At every fourth year or 6000 hours of operation, change
coolant if Long-life coolant is used.
Use only clean water to flush out cooling system. Re-
place the coolant filter at the same time.
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