C 4, SB 740-97-38
APPENDIX III-U
ITEM DEFECTS FOR SPREADERS, AGGREGATE,
TOWED-TYPE, TRACTION-POWERED
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 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
SPREADER HOPPER ASSEMBLY:
Hopper
Stage IV corrosion on interior surfaces; bent, cracked or deformed;
broken welds; mounting and/or fastening devices broken................................................................................
x
Stage III corrosion on interior surfaces .............................................................................................................
x
Belt flashing
Checking; cracking; broken reinforcing; frayed; cut; loss of
flexibility and resiliency; fungus growth .............................................................................................................
x
Stage IV corrosion; bent, cracked or broken; frozen ..........................
x
Stage III corrosion
............................................................................................................. x
Gate controls
Stage IV corrosion on adjustment screws, links, or other critical
surfaces; bent, broken, or deformed; frozen or inoperable ..............................................................................
x
Stage III corrosion on adjustment screws, links, or other criticalx
surfaces
.............................................................................................................
x
Stage II corrosion on adjustment screws, links, or other critical
surfaces
x
Feed roller
Stage III corrosion on exterior surfaces, bearings, roller shaft, and
interior surfaces of bearing block or cap; deteriorated seals............................................................................
x
Stage II corrosion on exterior surfaces, bearings, roller shafts, andx
interior surfaces of bearing block or cap .............................................................................................................
x
Agitator
Stage III corrosion on bearings, agitator shaft and interior surfaces of
bearing block or cap
............................................................................................................. x
Stage II corrosion on bearings, agitator shaft and interior surfaces of
bearing block or cap
x
Operator's platform
Stage IV corrosion; bent, cracked, or broken .......................................
x
Stage III corrosion
x
Spreader hitch
Stage III corrosion on adjustable hitch lift control pins, springs,
linkage, and threaded surfaces and/or hitch trip universal
joint frozen or inoperable
............................................................................................................. x
Stage II corrosion on adjustable hitch lift control pins, springs, linkage,
and threaded surfaces and/or hitch trip universal joint .....................................................................................
x
Balance handles
Stage IV corrosion; bent, cracked or broken; rubber grip missing or
deteriorated
............................................................................................................. x
Stage III corrosion .
PRANSMISSIONS AND DRIVES:
Drive chains
Stage IV corrosion; pins and/or rollers frozen; cracked or broken links x
Stage III corrosion
............................................................................................................. x
Stage II corrosion
.............................................................................................................
x
Sprockets and idlers
Stage IV corrosion on machined surfaces; chipped, cracked, or broken x
Stage III corrosion on machined surfaces ...........................................................................................................
x
Stage II corrosion on machined surfaces ............................................................................................................
.
x
Gears, bearings and shafts
Stage IV corrosion; chipped, cracked, or broken gears ......................
x
Stage III corrosion
............................................................................................................. x
Stage II corrosion
.............................................................................................................
x
Housings
Cracked, bent or broken; deteriorated gaskets; contaminated lu-
bricant
x
TRACTION DRIVE AND SUPPORT WHEELS:
Axles and bearings
Stage IV corrosion on wheel bearings and machined surfaces of axles;
deteriorated gaskets or seals
x
Stage III corrosion on wheel bearings and machined surfaces of axles ..........................................................
x
Stage II corrosion on wheel bearings and machined surfaces of axles ...........................................................
.
.x
Drive shaft assembly
Stage IV corrosion on machined surfaces of shaft, bearings, couplings
or chain; chain pins or rollers frozen, andLor cracked or broken
links; sprockets chipped, cracked, or broken .....................................................................................................
x
III-U-1