Lonking CDM853 - Page 128

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Set pressure drop alarm indicator connector at
the outlet of the air filter, the yellow piston of the
air filter indicator moves to the red area when the
engine is running in high idle speed. The air filter
needs maintenance.
Air filter alarm indicator is shown in the right
figure:
1.
Shut down the engine, and remove the air
filter cover.
2.
Unscrew the filter cover in arrow direction.