VMAC
– Vehicle Mounted Air Compressors
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60
SYMPTOM
POSSIBLE CAUSE
CORRECTIVE ACTION
Oil comes out of
blowdown muffler
Oil level overfilled,
system operating at
excessive angle.
Check oil level with
equipment on level ground.
Blowdown valve failed
or internally
contaminated.
Replace blowdown valve
assembly.
SYMPTOM
POSSIBLE CAUSE
CORRECTIVE ACTION
Excessive oil in the air
Coalescing separator
failure.
Replace coalescing filter.
Clogged scavenge
tube or fitting.
Clean or replace.
High oil level.
Check oil level with
equipment on level ground.
Operating angle in
excess of 15 degrees
from horizontal.
Reduce operating angle.
Incorrect start-up/
shut down
procedures.
Observe start-up/ shut down
procedures detailed in this
manual.
SYMPTOM
POSSIBLE CAUSE
CORRECTIVE ACTION
Compressor overheat
Low compressor oil
level.
Check oil level with
equipment on level ground.
Wrong compressor oil
used.
Use VMAC approved
compressor oil.
Oil condition.
Service compressor.
Plugged compressor
oil filter.
Replace oil filter.
WHASP Cooler not
functioning or
plugged.
Replace or clean oil cooler.
WHASP Cooling fan
not functioning.
Repair or replace.
High ambient
temperatures.
Reduce duty cycle.
Oil temperature
switch failure.
Replace if defective.
Restricted oil lines.
Check for kinked or pinched
lines.
Summary of Contents for RAPTAIR-G30
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