STRAINER 0993583 - Caterpillar

Illustration 1 g01116980
The air filter service indicator (1) is located in the engine compartment on the LH side of the machine.In normal dust conditions, the air filter service indicator should be tested for proper operation at 250 hours. Also, the indicator should be tested when the air filter elements are serviced. In order to check the operation of the air filter service indicator, do the following checks.
Stop the engine. Check for ease of resetting the indicator. The indicator should reset within a maximum of three pushes.
Check for movement of the yellow core when the engine is accelerated to high idle. When the engine is accelerated to high idle, the yellow core should latch near the highest position.If the indicator will not easily reset replace the indicator. When the engine is accelerated to high idle and the indicator does not latch at the highest position, replace the indicator.