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Table 2-2. Troubleshooting - continued - TM-10-3930-618-200043
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TM-10-3930-618-20 Truck Lift Fork; Gasoline Engine Driven; Pneumatic Tired Wheels; 6 000 lb. Capacity; 168 Inch Lift Manual
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Figure 2-1.
Table 2-2. Troubleshooting (Cont'd)
Probable cause
Malfunction
Corrective action
d.
Report
to direct support maintenance.
d.
Improper or loose linings.
e.
Report
to direct support maintenance.
e.
Brake shoe on drum distorted.
a.
Report
to direct support maintenance.
a.
Lining worn.
49. Excessive brake pedal travel.
b.
Adjust
free travel (para 2-52).
b.
Pedal free travel improperly adjusted.
a.
Insufficient fluid in master cylinder
a. Fill master cylinder to within 1/4-inch of
50. Excessive brake pedal pressure nec-
the top (para 2-53).
essary to actuate brakes.
b.
Grease on linings. worn or glazed lining.
b. Report to direct support maintenance.
c.
Warped brakeshoes or defective brake linings.
c. Report to direct support maintenance.
d.
Brake drum scored or distorted.
d. Report to direct support maintenance.
a. Inspect mounting on hub, splindles, and
a.
Wheel bent.
51. Wheel wobble.
drive axles, replace defective wheel or mounting
(para 2-56 and 2-57).
b. Tighten nuts or bolts.
b. Wheel loose on hub.
c. Report to direct support maintenance.
c. Wheel bearing not adjusted
Fill to correct level.
Hydraulic oil level low.
52.
Tanks do not lift to mechanism height.
Refer to direct support maintenance.
Loss of oil pressure.
53.
Tilt.
Refer to direct support maintenance.
Defective cylinder.
54.
Oil leak at top of cylinder assembly.
Adjust chains for even lift of carriage.
Lift chains out of adjustment.
55.
With load centered on lift forks, load is
lifted unevenly.
a. Release brake.
a. Parking brake not released.
56. Truck will not move in either direction.
b. Fill to correct level.
b. Transmission oil level low.
c. Report to direct support maintenance.
c. Transmission control linkage not properly
adjusted.
d.
Report to direct support maintenance.
d. Transmission inoperative.
a.
Report to direct support maintenance.
a. Transmission control linkage not adjusted.
57. Truck will move in one direction only.
b.
Report to direct support maintenance.
b. Defective transmission.
a.
Fill to correct level.
a. Oil level low.
58. Truck moves slowly in either direction
b.
Refer to "Brakes drag" Item 46 above.
at wide open throttle.
b. Brakes dragging.
c.
Report to direct support maintenance.
c. Defective transmission.
a.
Fill to correct level.
a. Oil level low.
59. Transmission overheating.
b.
Refer to "Brakes drag" Item 46 above.
b. Brakes dragging.
c.
Flush radiator (para 2-25).
c. Plugged radiator.
d.
Report to direct support maintenance.
d. Defective transmission.
Section V. MAINTENANCE OF THE ENGINE
2-7. Engine
loaded relief valve that is accessible from the outside of
the engine for adjustment. The cooling system. is
The engine is a six cylinder, four-stroke cycle, valve-
thermostatically controlled and features an impeller
in-head, gasoline engine. The engine lubrication system
type water pump and full-length cylinder water jacket.
is a full pressure, force feed type employing a spring
The engine is illustrated in figure 2-1, and 2-2 and 2-3.
2-8

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