TM 5-3820-256-10
Table 2-19. Crane Preventive Maintenance Checks and Services (cont'd.)
ITEM
INTERVAL
Item to be
Procedures
Equipment is
NO.
Inspected
Check for and have repaired
not ready/
B D A W M
or adjusted as necessary.
available if:
18
X
Switches on remote
Check switches for malfunctions.
Any control fails
control pendant
to operate.
19
X
Crane hydraulic control
Check spools for sticking and failure
Valves stick or
valves
to return to neutral position.
operate erratically.
20
X
Operator's platform
Check for loose mounting bolts and
defective latch.
21
X X
Lubrication
Lubricate as required by chapter 3.
Table 2-20. Welder/Generator Preventive Maintenance Checks and Services
ITEM
INTERVAL
Item to be
Procedures
Equipment is
NO.
Inspected
Check for and have repaired
not ready/
B D A W M
or adjusted as necessary.
available if:
WELDER/GENERATOR
1
X
Engine Battery
Check electrolyte level. Add distilled
Battery is dead.
water if required (Reference TM 9-
6140-200-141.)
2
X
Fuel tank
Check fuel level. Add diesel fuel if
needed.
ENGINE ASSEMBLY
3
X
Engine oil level
Check oil level. Add oil, if needed, to
Oil does not show
raise level to full mark.
on dipstick.
4
X X
Air cleaner
Check and clean oil bath air cleaner.
5
X X
Cooling fins
Clean as necessary.
6
X
V-belt
Check that belt deflection between
pulleys is not more than 3/8 in. (10mm-
Check for cracks and frayed areas.
7
*
Expendable fuel filter
Every 1,200 running hours, replace
fuel filter.
8
X
Manifold
Check intake and exhaust manifold
for leaks. Check mounting bolts for
tightness.
GENERATOR ASSEMBLY
9
*
Circuit breaker
Every 1,200 hours, check breaker.
10
X
Switches
Check for smooth switching operation.
Switches or knobs
Check for broken switches and knobs.
broken.
11
X
Welder Leads
Check for cracked insulation or dam-
Insulation is cracked.
aged cables. Check for damaged
Cable is damaged.
prongs.
12
X X
Ground clamp
Check for secure ground clamp con-
Welder cannot be
nection.
grounded.
2-36
