Levels of
Functional
maintenance
Remarks
group
Components and related operation
O/C
O
DS
GS
D
Shoes, clutch
Replace -------------------------------- -----------
----
X
Repair -------------------------------- -------------
----
----
X
Guard; clutch, jaw
Replace -------------------------------- -----------
----
X
7416
Shafts
Shaft assemblies
Service -------------------------------- ------------
X
Replace -------------------------------- -----------
----
----
----
X
Repair -------------------------------- -------------
----
----
----
X
Bands, brake
Adjust-------------------------------- --------------
X
Replace -------------------------------- -----------
----
X
Repair -------------------------------- -------------
----
----
X
Guards; gear, spur, vertical
Replace -------------------------------- -----------
----
X
7419
Turntable
Rollers, rear
Service -------------------------------- ------------
X
Replace -------------------------------- -----------
----
X
Repair -------------------------------- -------------
----
X
Roller assembly, front
Service -------------------------------- ------------
X
Replace -------------------------------- -----------
----
----
----
X
Repair -------------------------------- -------------
----
X
Lock assembly, swing
Replace -------------------------------- -----------
----
X
Repair -------------------------------- -------------
----
X
7420
Machinery Gear Case and Frame
Case, gear
Replace -------------------------------- -----------
----
----
X
Frame, machinery
Replace -------------------------------- -----------
----
----
----
X
Repair -------------------------------- -------------
----
----
----
X
7421
Independent or Precision Boom
Hoist
Shaft assembly
Service -------------------------------- ------------
X
Replace -------------------------------- -----------
----
----
----
X
Repair -------------------------------- -------------
----
----
----
X
Bands, brake
Adjust-------------------------------- --------------
X
Replace -------------------------------- -----------
----
X
Repair -------------------------------- -------------
----
----
X
7422
Machine Mechanism Controls
Rods, levers; pedals; shafts;
linkage
Replace -------------------------------- -----------
----
X
Bearings, sleeve
Replace -------------------------------- -----------
----
X
7428
Gantry
Frame, gantry
Replace -------------------------------- -----------
----
----
X
Repair -------------------------------- -------------
----
X
7499
Cables
Cables
Inspect -------------------------------- ------------
X
Replace -------------------------------- -----------
X
AGO 6819A
339
