Appendix III-R. ITEM DEFECTS FOR DRILL, PNEUMATIC, DRIFTER, CRAWLER AND WHEEL MOUNTED (Cont)

Appendix III-R. ITEM DEFECTS FOR DRILL, PNEUMATIC, DRIFTER, CRAWLER AND WHEEL MOUNTED

Appendix III-R. ITEM DEFECTS FOR DRILL, PNEUMATIC, DRIFTER, CRAWLER AND WHEEL MOUNTED (Cont) - SB-740-97-380098

SB-740-97-38 Storage Serviceability Standard for TROSCOM Material Construction Mining Excavating and Highway Maintenance Equipment Manual
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C 3, SB 740-97-38

Classification

Item

Defect

Major

Minor

Jack screws and

tube assemblies

Stage III corrosion on sliding and/or threaded

surfaces

Stage II corrosion on sliding and/or threaded

surfaces

............................................................................................................. x

Gear housing (lift

jack hand crank)

Stage III corrosion of internal surfaces; seals

deteriorated or leaking

StageII corrosion of internalsurfaces;

lubricant contaminated

............................................................................................................. x

Eyebolts, axle pivot

pins, axle locking

studs and swivel

nuts Stage III corrosion; frozen or missing

............................................................................................................. x

Stage II corrosion

............................................................................................................. x

TRACTION DRIVE GEAR

HOUSING:

Interior surfaces

Stage III corrosion on drive shaft, bearings, and

other machined surfaces; seals deteriorated or

leaking

Stage II corrosion on drive shaft, gears, bearings,

and other machined surfaces; lubricant con-

taminated

............................................................................................................. x

Brake cylinder

Stage III corrosion on internal surfaces; deteriorated

gaskets or O-ring stage IV corrosion on external

surfaces

Stage IV corrosion on internal surfaces, stage III

corrosion on external surfaces

............................................................................................................. x

Clutch lock pin handle

Bent or broken ..........................................................................................

PROPELLING AIR MOTORS:

Interior surfaces

Stage II corrosion on cylinder walls, bearings and

other critical surfaces; seals deteriorated or

leaking

Stage I corrosion on cylinder walls, valves

and bearings

............................................................................................................. x

Vent caps

Stage IV corrosion on interior surfaces ..........................................

Stage III corrosion on interior surfaces .............................................................................................................

Screen contaminated with dirt or other foreign

matter

.............................................................................................................

PROPELLING CONTROL VALVES:

Interior surfaces

Stage III corrosion ....................................................................................

Stage II corrosion; O-ring or gasket deteriorated ...............................................................................................

Control arms and handles

Bent, broken or distorted ........................................................................

III-R-2

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