Western Star 47X 2020, Maintenance Manual

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13–00 Safety Precautions
Safety Precautions in this section apply to all
procedures within this group.
DANGER
When working on the vehicle, shut down the en-
gine or motor, set the parking brake, and chock
the tires. Before working under the vehicle, always
place jack stands under the frame rails to ensure
the vehicle cannot drop. Failure to follow these
steps could result in serious personal injury or
death.
13–01 Air Compressor
Inspection
1. Inspect the air compressor intake hoses and
connections at the air intake at the air cleaner,
the resonator, and the air compressor for physi-
cal damage or loose connections. If needed,
change the hoses, and/or tighten or replace the
connections.
2. Inspect the coolant supply and return lines for
tight connections. Tighten the connections and
replace the lines and fasteners if needed.
3. For the air governor, inspect the piping and con-
nections for leaks. Replace gaskets and faulty
components as needed.
Air Compressor
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47X and 49X Maintenance Manual, August 2020
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