TM 10-3950-206-12
Table 3-2. Troubleshooting
Malfunction
Probable cause
Corrective action
1. Engine overheats
a. Coolant level low.
a. Add water as required.
b. Loss of coolant.
b. Inspect hoses for cracks, deteriora-
tion or collapsing.
c. Insufficient heat transfer.
c. Clean dust, dirt, and foreign
matter from radiator fins
2. Engine lacks power or hard
Insufficient air.
Clean oil cup of air cleaner.
to start..
3. Excessive fuel consumption.
a. Sustained operation at high speeds.
a. Avoid operating continuously at
high speeds.
b. Operation at prolonged periods at
b. Avoid operating at idle speed for
idle speed.
long periods.
4.
No oil pressure.
Insufficient oil in crankcase.
Check level. Add oil as required.
5.
Batteries discharged.
Electrolyte level low.
Service batteries (para 3-10).
6.
Lights do not light.
Switch not fully on.
Pull switch fully on.
7.
Steering is difficult.
Lack of lubrication at pivot points.
Lubricate.
8.
Crane will not move in
a. Parking brake not released.
b. Release brake.
either direction.
b. Transmission oil level low.
b. Fill to proper level (para 3-3g).
9. Crane will not move in one
(See 8, b above.)
direction.
10. Crane will not lift load.
Load too heavy.
Remove excessive weight.
Section V. OPERATOR'S MAINTENANCE
3-12. Seat Adjustment
3-7. General
The operator's seat is provided with a sliding track
The instructions of this section are published for the
mounting for sliding the seat forward or backward to suit
information and guidance of the operator to maintain the
the individual operator. The side release lever is located
Pettibone Model 10FM Ware- house Crane.
at the left, front, be- low the seat cushion.
3-8. Fuel Tank Service
Service the fuel tank as instructed on figure 3-4. Note.
Keeping the fuel tank full when unit is not in use will
reduce the amount of condensation and water
contamination of the gasoline
3-9. Radiator Service
Service the radiator as instructed in paragraph 2-1b (8).
3-10. Battery Service
Service the batteries as instructed in paragraph 2-1b (3).
3-11. Tire Service
a. Operator maintenance of tires is limited to
maintaining proper tire inflation. Need for re- placement
or repair of punctured tire or tube should be reported to
organizational maintenance.
b. Service the rear steering tires as instructed on
c. Service the front, dual driving tires as instructed
in figure 3-5B.
Figure 3-4. Fuel tank service points.
3-4
