C 4, SB 740-97-38
APPENDIX III-LL
Classification
Item
Defect
Major
Minor
A
B
EXTERIOR SURFACES AND
HOUSING:
General
Fractures; base mounting and/or fastening devices
broken or inoperative.....................................................................................x
Dents ..................................................................................................................
x
Painted surfaces
Stage III corrosion; chipped or abraded ..............................................................x
Stage II corrosion................................................................................................
x
Unpainted noncritical
sufaces
Stage IV corrosion ..............................................................................................x
Stage III corrosion...............................................................................................
x
Stage II corrosion................................................................................................
x
SPROCKET, SHEAVES, ROLLERS
AND IDLERS:
Distroted; cracked or broken; stage IV corrosion,
frozen; missing .............................................................................................x
Stage III corrosion...............................................................................................
x
Stage II corrosion................................................................................................
x
STRUCrURAL MEMBERS:
Twisted; bent; cracked welds; broken.................................................................x
Dents ..................................................................................................................
x
Exposed
Chipped, cracked or broken; stage III corrosion..................................................x
Stage II corrosion................................................................................................
x
Enclosed
Chipped, cracked, or broken; stage II corrosion;
contaminated lubricant; leaks, deteriorated
gaskets or seals............................................................................................x
Stage I corrosion.................................................................................................
x
GEAR SHAFTS AND BEARINGS:
Stage III corrosion; frozen...................................................................................x
Stage II corrosion................................................................................................
x
LUBRICATION SYSTEM:
Seals
Deteriorated; lealdng ...........................................................................................x
Lines
Kinked, cracked, or broken; leaking ....................................................................x
Fittings
Missing or broken; contaminated lubricant..........................................................x
Lubrication points
Dry .....................................................................................................................
x
BUCKET OR DIPPERS SHANKS
AND TEETH:
Loose; damaged; incomplete or missing; state IV
corrosion .............................................................................................................x
Stage III corrosion...............................................................................................
x
HINGE PINS, BEARINGS,
BUSHING AND SHAFTS:
Damaged; frozen; stage IV corrosion..................................................................x
Stage III corrosion...............................................................................................
x
Stage II corrosion................................................................................................
x
FITTINGS (WIRE ROPE):
Damaged; incomplete; stage IV corrosion ..........................................................x
Stage III corrosion...............................................................................................
x
Stage II corrosion................................................................................................
x
ASSEMBLY HARDWARE:
Damaged; incomplete; stage IV corrosion ..........................................................x
Stage III corrosion...............................................................................................
x
WIRE ROPE:
Broken strands; stage IV corrosion.....................................................................x
Kinked or frayed; stage III corrosion....................................................................
x
Stage II corrosion................................................................................................
x
DRIVE CHAINS:
Cracked or broken links; state IV corrosion ........................................................x
Stage III corrosion...............................................................................................
x
Stage II corrosion................................................................................................
x
LAGGING:
Stage IV corrosion; assembly hardware or wedges
missing .........................................................................................................x
Stage III corrosion...............................................................................................
x
Stage II corrosion................................................................................................
x
CROUDCHAIN TIGHTNERS:
Stage IV corrosion on adjusting studs or nuts;
bent; damaged threads .................................................................................x
Stage III corrosion on adjusting studs or nuts.....................................................
x
TURNBUCKLES:
Stage IV corrosion on threaded surfaces; bent or
broken; damaged threads .............................................................................x
Stage III corrosion on threaded surfaces ............................................................
x
GUARDS AND SHIELDS:
Distorted, incomplete or missing; stage IV
corrosion.......................................................................................................x
III-LL-1
