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TM 10-4320-307-10
Table 3-1. Operator/Crew Troubleshooting (Cont)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 1.
Check control panel malfunction indicator, coolant temperature, suction pressure, low lube oil
pressure, and overspeed.
If malfunction is cited, take corrective action by referring to operating procedures.
Step 2.
Check for insufficient fuel supply.
Refill low tank. Perform the checks and services of Table 2-2, item 4.
Step 3.
Check for alignment of three-way valve.
Align valve to proper fuel supply.
Step 4.
Check engine air cleaner restriction indicator.
If indicator shows red, notify unit maintenance.
Step 5.
Check that crankcase is filled with oil to the correct level.
CAUTION
Do not overfill. Oil will be blown out through crankcase breather if crankcase is overfilled.
a.
If oil level is low, fill to proper level.
b.
Start engine and observe lube oil pressure gauge. If no lube oil pressure shows on gauge, notify
unit maintenance.
Step 6.
Check for broken or damaged V-belts.
a.
Perform the checks and services of Table 2-2, item 21.
b.
If V-belts are damaged or broken, contact unit maintenance.
Step 7.
Inspect intake duct assembly.
Perform the checks and services of Table 2-2, Item 5.
6.
EXCESSIVE LUBRICATING OIL CONSUMPTION
Step 1.
Check that engine speed is correct for the specific gravity of liquid being pumped. Refer to pump
performance data plate.
Adjust ENGINE PUMP CONTROLLER knob until engine is running at correct speed (paragraph 2-
5).
Step 2.
Check exhaust. If exhaust discharge contains oil, excessive oil is being burned In engine cylinders
or around cylinder valve stems.
Notify unit maintenance.
Step 3.
With engine not running, check oil cartridge, drain tube fitting, drain tube, oil cooler, turbocharger
feed line, and turbocharger return line for oil leaks.
If leaking, notify unit maintenance.
3-5
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