C 4, SB 740-97-38
APPENDIX III-KK
ITEM DEFECTS FOR GRADATION CONTROL UNIT, AGGREGATE
Classification
Item
Defect
Major
Minor
A
B
EXTERIOR SURFACES AND
HOUSINGS:
General
Fractures; base mountings and;or fastening devices
broken or missing .........................................................................................x
Dents ..................................................................................................................
x
Painted surfaces
Stage 111 corrosion; chippslt or abraded ...........................................................x
Stage II corrosion................................................................................................
x
Unpainted noncritical
surfaces.
Stage IV cor'osion...............................................................................................x
Stage III corrosion...............................................................................................
x
Stage II corrosion................................................................................................
x
CHASSIS:
Frame members
Cracked or broken welds; stage I' corrosion .......................................................x
Stage lII corrosion ...............................................................................................
x
Stage II corrosion................................................................................................
x
Tires
Checks and cracks extendlng to the cord; cut or
punctured; bulges iTdtlicatinig ply separation;
chunking of rubber........................................................................................x
Wheels
Distorted; broken; stagt IV corrosion...................................................................x
Stage III corrolon.................................................................................................
x
Stage Il corrosion ................................................................................................
x
Jack legs
Stage IV corrosion bent or broken; threads
damaged.......................................................................................................x
Stage III corroson................................................................................................
x
Stage IV corrosion; lubricant contaminated.........................................................x
Stage IIl corrosion ...............................................................................................
x
Stage II corrosion................................................................................................
x
Kingpin and plate
Stage IV corrosion ..............................................................................................x
Stage III corrosion...............................................................................................
x
Tool box
Stage IV comision; hlasps tbent or broken..........................................................x
Stage III corrosion...............................................................................................
x
WIRE ROPE:
Stage IV conrosisin; broken strands ...................................................................x
Stage III corroslon...............................................................................................
x
Stage II corrosion................................................................................................
x
BRAKE ASSEMBLY:
Drum and/or shoes
Stage IV corrosion ..............................................................................................x
Stage III corrosion...............................................................................................
x
Stage II corrosion................................................................................................
x
yokes, and/or linkage.
Stage IV corrosion; dislorted or broken ...............................................................x
Stage III corrosion; frozen...................................................................................
x
Stage II corrosion................................................................................................
x
Air reservoir
Stage III corrosion on internal surfaces; stage IV
corrosion on external surfaces......................................................................x
Stage II corrosion on internal surfaces; stage III
corrosion on external surfaces......................................................................
x
ELECTRICAL SYSTEM:
Wiring
Broken strands; cracked insulation; fungus growth ......................................x
Frayed; checked; loss of flexibility.......................................................................
x
Terminals and connectios
Stage III conrrosion; broken terminals.................................................................x
Stage II conrrosion..............................................................................................
x
Switches, junction boxes and
Stage III corrosion; broken; frozen ......................................................................x
Stage II corrosion................................................................................................
x
Stage III corrosion; cracked or broken ................................................................
x
Stage II corrosion................................................................................................
x
HANDRILLS, LADDERS, PLATFORMS,
AND CATWALKS
Stage IV corrosion; twisted or bent .....................................................................x
III-KK-0