C 1, SB 740-97-38
APPENDIX III-A
ITEM DEFECTS FOR SCRAPERS
Classification
Major
Minor
Item
Defect
A
B
EXTERIOR SURFACES AND
HOUSINGS:
General
Fractures: base mounting and/or fastening devices broken or
missing ............................................................................................................................
X
Dents
X
Painted surfaces
Stage III corrosion; chipped or abraded
X
Stage II corrosion
X
Unpainted noncritical surfaces
Stage IV corrosion
X
Stage III corrosion
X
Stage II corrosion ............................................................................................................
X
CHASSIS:
Frame
Cracked or broken welds; stage IV corrosion .................................................................
X
Stage III corrosion ...........................................................................................................
X
Stage II corrosion ............................................................................................................
X
Tires
Checks and cracks extending to the cord; cut or punctured;
bulges indicating ply separation; chunking of rubber ................................................
X
Wheels
Distorted; broken; stage IV corrosion ..............................................................................
X
Stage III corrosion ...........................................................................................................
X
Stage II corrosion ............................................................................................................
X
Support jacks:
Machined surfaces
Stage III corrosion ...........................................................................................................
X
Stage II corrosion ............................................................................................................
X
Non-machined surfaces
Stage IV corrosion ..........................................................................................................
X
Stage III corrosion ...........................................................................................................
X
Stage II corrosion ............................................................................................................
X
BODY ASSEMBLY:
Cracked or broken welds; stage IV corrosion .................................................................
X
Stage III corrosion............................................................................................................
X
Stage II corrosion ............................................................................................................
X
STEERING SYSTEM:
Tow hitch or tongue
Stage IV corrosion; cracked or broken welds ..................................................................
X
Stage III corrosion............................................................................................................
X
Stage II corrosion ............................................................................................................
X
Linkage
Stage IV corrosion, bent or distorted ..............................................................................
X
Stage III corrosion; frozen................................................................................................
X
Stage II corrosion.............................................................................................................
X
WIRE ROPE:
Stage IV corrosion; broken strands ................................................................................
X
Stage III corrosion............................................................................................................
X
Stage II corrosion ............................................................................................................
X
SHEAVES:
Stage IV corrosion; frozen ..............................................................................................
X
Stage III corrosion............................................................................................................
X
III-A-1