TM 5-3810-231-12
Section II. MAINTENANCE ALLOCATION CHART
Date
Maintenance
levels
Maintenance
Note
operations
ref
Func-
A
B
C
D
E
F
G
H
I
J
K
L
tional
Group
Ser- Adjust Aline Cali- Inspect Test
Re- Repair Over-
Re-
T&TE Re
No.
Component Assembly Nomenclature
vice
brate
place
haul
build
rqmt marks
7414
Base deck:
Frame assembly, crane
O/C
H
H
Plates, platforms
F
7415
Clutch:
Clutch assembly, magnetic
H
F
Clutch assembly, hoist
F
O
Sprocket, clutch
O
7416
Shafts:
Shaft assemblies
O/C
H
H
Bands
O/C
O
F
Case assembly, chain, sprockets
O/C
O
H
Guards; shields
O
O
7417
Bands, clutch and brake
O/C
O
F
Hoist drum shaft
O/C
H
H
Guards; shields, lagging, drums
O
7419
Turntable:
Band, swing brake
O/C
O
O
Drum
H
Linkage
O
Rollers
O
F
Swing lock assembly
O/C
O
O
7420
Machinery gear case or frame:
Breathers
O/C
O/C
Covers, guards
O
Pan assembly, oil
O
O
7422
Machinery mechanism controls:
Brake assembly, controls
O/C
O
O
Lever assemblies
O
O
7423
Gantry:
O
O
Spreader bar assemblies, sheaves
O/C
O
F
7424
Crawler bed, frame and ring gear:
O
Frame and axle assembly
O/C
H
F
Gear, ring; bearings
H
7425
Propel and steering mechanism:
Band assemblies
O/C
O
F
Shafts, sprockets
H
Linkage; levers
O
Shaft assemblies, steering
O/C
F
H
7499
Cables and ropes
O/C
Section III. SPECIAL TOOL AND SPECIAL TEST EQUIPMENT
REQUIREMENTS
Reference
Maintenance
Nomenclature
Tool No.
code
level
No special tools or test required to
perform maintenance on the crane.
148
