TM 5-3810-288-12
Table 3-2. Troubleshooting-Continued
Malfunction
Probable cause
Corrective action
17. Dragline not operating
a. Dump cable not adjusted
a. Shorten or lengthen dump cable
properly.
properly.
Until proper operation is obtained.
b. Front or rear drum brake im-
b. Adjust brake (para 3-23).
properly adjusted.
c. Fairlead rollers or sheaves stick-
c. Lubricate per lubrication order.
ing
18. Shovel not operating properly. a. Dipper pitch brace improperly
a. Adjust pitch brace (para 3-27).
adjusted for material being
moved.
b. Front or rear drum brake im-
b. Adjust brakes (para 3-23).
properly adjusted.
19. Backhoe not operating
a. Incorrect dipper pitch.
a. Adjust dipper pitch (para 3-29).
b. Place cable in sheave.
properly.
b Cable out of sheave.
c. Front or rear drum brake im-
c. Adjust brakes (para 3-23).
properly adjusted.
20. Pile driver not operating
a. Hammer binding on pile leads.
a. Lubricate the hammer per lubrication
properly
order
b. Front or rear drum brakes
b. Adjust brakes (para 3-23).
slipping.
21. Engine lacks power.
a. Fuel pump not operating
a. Replace fuel pump (para 3-42).
properly.
b. Sediment bowl clogged.
b. Service sediment bowl (para 3-10).
c. Air cleaner clogged.
c. Clean air cleaner (para 3-9).
Section VI. FIELD EXPEDIENT REPAIRS
pedient repairs may be used during such emergencies,
3-34. General
upon authorization of the unit commander. Equipment
Operating difficulties may occur in the field at a time
so repaired must be removed from operation as soon as
when it is imperative that the machine be continued in
possible, and properly repaired before being returned to
service and when repair parts or sup plies are not
operation.
available for normal corrective action. The following ex-
Table 3-3. Field Expedient Repairs
Operating difficulty
Probable cause
Field expedient repair
1. Engine will not crank.
a. Batteries dead.
a. Use jumper cables from the batteries of
another piece of equipment which
operates off a 24 volt system. Be sure to
connect the plus (+) and minus (-)
terminals of the batteries together. Never
connect (+) to (-).
b. Terminals corroded.
b. Clean terminals.
2. Engine overheats.
Low fluid level in radiator due
Tape leaky hose or use a commercial
to leaks.
"stop leak" compound in the radiator
3-28
