IMT CAS2545, Руководство по эксплуатации и обслуживанию

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Operation 33
Compressor Operation Test
Each compressor is bench tested under load at the factory to ensure proper break-in and
operation. While it is not necessary to follow any break-in procedures, complete the following
checks before putting the unit into service and periodically during use.
1 Before start-up
a) Check the compressor oil level. If oil is required, use only IMT synthetic compressor oil.
Always check compressor oil level with the truck cold and the compressor on level
ground.
b) Check the air intake filter indicator (visible at the front of the compressor) for cleanliness
and obstructions. A dirty or obstructed filter may cause reduced air output. The indicator
will be in the red zone when the filter needs attention.
c) Avoid operating the compressor package when the side-to-side or front-to-rear tilt is
greater than 20°.
CAUTION
Prior to compressor start-up, make sure the cover, guards, and access plugs are in place
and secured.
2 With the compressor engaged:
a) Adjust engine speed to ensure that compressor speed does not exceed 8500 rpm (max.)
under load. Crack open air discharge valve until air pressure drops to 125 psi and
maintains this pressure. Doing so simulates a maximum load condition.
b) If engine speed increase is required, readjust air discharge valve to 125 psi after speed
has been increased. Repeat until appropriate compressor rpm (NOT engine rpm) is
achieved.
c) Check the compressor rpm using a phototach on the compressor input pulley, located
through the canopy cover.
Compressor Start-Up & Shut-Down
Compressor Start-Up
a Make sure all guards, covers, and access plugs are in place and secured.
b Start the vehicle engine.
c Engage the PTO per the manufacturer's instructions.
d Engage the compressor by turning on the power. The power switch location varies
depending on the installation. If the compressor is mounted on an IMT service truck with
a crane, the power switch is located on the crane remote. Otherwise, the power switch
may be located on the truck or as a custom wiring application.