Engine Maintenance
81
Oil Bath Type
A heavy duty, oil bath air cleaner filters all of the
air entering the engine. Excessive restriction of
the air intake system reduces the flow of air to the
engine affecting horsepower output, fuel
consumption and engine life.
The air cleaner removes abrasive material from
the air entering the engine. The air cleaner must
be kept clean and open so that the air can pass
freely. If the oil has absorbed the maximum
amount of dirt, it allows the dirt to enter the
engine. Remove the oil cup, wash thoroughly and
dry every 750 operating hours (500 hours under
dusty conditions). Refill using the same weight oil
used in the engine crankcase. Inspect the cleaner
body and wash in solvent when it becomes dirty.
Dry Type (Optional)
A dry element air cleaner filters all of the air
entering the engine. Excessive restriction of the
air intake system affects horsepower, fuel
consumption and engine life. Inspect the element
at regular unit service intervals.
An air restriction indicator is installed in the air
intake elbow. Visually inspect the restriction
indicator periodically to assure the air filter is not
restricted. Service the air filter when the yellow
diaphragm indicates 22 in. (559 mm) of vacuum.
Press the reset button on the bottom of the
restriction indicator after servicing the air filter.
Figure 36: Air Restriction Indicator
1. Air Intake Hose
2. Air Cleaner Filter
3. Clamp Assembly
4. Mounting Clamps
5. Cup
Figure 34: Oil Bath Air Cleaner
1. Air Filter Box
2. Air Filter
3. Air Filter Cover
Figure 35: Dry Air Cleaner (Optional)
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