TM5-3820-256-10
3-7. Air Compressor Drive. Troubleshooting procedures for the air compressor drive are listed in table 3-3.
a. The table lists the common malfunctions that you may find during the operation or maintenance of the air
compressor or its components. You should perform the tests/inspections and corrective actions in the order
listed.
b.
This manual cannot list all malfunctions that may occur, nor all tests/inspections and corrective actions. If a
malfunction is not listed or is not corrected by listed corrective action, notify your supervisor.
Table 3-3. Troubleshooting the Air Compressor Drive
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1.
AIR COMPRESSOR
Step 1. Check to see if
Move air compressor power
WILL NOT START.
air compressor power
switch to ON position.
switch is on.
Step 2. Check to see if
Press to reset compressor
compressor relay switch is
relay switch.
tripped.
Step 3. Check to see if
Turn inlet valve handwheel
air line conditioner inlet
counterclockwise.
valve is closed.
Step 4. Check to see if
Turn regulator adjusting knob
air line conditioner outlet
to increase pressure.
pressure indication or regu-
lator dial is too low.
2.
AIR COMPRESSOR
Check to see if air comp-
Move air compressor load
WILL NOT INCREASE
ressor load switch is on.
switch to ON position.
PRESSURE ABOVE
55 PSIG.
3.
AIR COMPRESSOR
Check to see if engine
Set throttle to increase en-
WILL NOT MAINTAIN
speed is too low.
gine rpm.
DRILLING PRESSURE.
4.
AIR COMPRESSOR
Check to see if panel
Move switch to ON position.
PANEL DOES NOT
on/off switch is on.
OPERATE.
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