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Unit Description

Engine Compartment Components

The following maintenance items can be checked visually.

Air Filter Restriction Indicator: The air filter restriction

indicator is attached to the engine intake manifold. When the

diaphragm indicates 25, service the air filter. Press the button

on the top of the restriction indicator to reset after servicing the

air cleaner.

Compressor Oil Sight Glass: Use this sight glass to check

the compressor oil level. Check the compressor oil when there

is evidence of oil loss (leaks). Refer to the unit Maintenance

Manual for the correct procedure.

Engine Oil Dipstick: Use the engine oil dipstick to check

the engine oil level.

1. Air Filter Restriction Indicator

2. Receiver Tank Sight Glass

3. Engine Oil Dipstick

4. Compressor Oil Sight Glass

Figure 11: Engine Compartment

WARNING: The unit can start at any time without

warning. Place the On/Off switch in the Off position

before inspecting any part of the unit.

CAUTION: Make sure the engine is turned off before

attempting to check the engine oil.