C 4, SB 740-97-38
Classification
Item
Defect
Major
Minor
A
B
Nonprecision
Stage IV corrosion; cracked or broken links.........................................
x
Stage III corrosion; pins and/or rollers frozen.....................................................................................................
x
Stage II corrosion
.............................................................................................................
x
HYDRAULIC SYSTEMS:
Lines, hoses, and
Kinked; broken; leaks or seeps; checked or cracked;
fittings
fungus growth; loss of flexibility............................................................
x
Pumps and/or fluid
Body cracked or broken; stage III corrosion.........................................
x
reservoirs
Stage II corrosion on internal surfaces .............................................................................................................
x
Operating fluid
Contaminated ...........................................................................................
x
Gaskets and seals
Deteriorated; leaks or seeps ...................................................................
x
Filters
Stage III corrosion on internal surfaces ................................................
x
x
Stage II corrosion on internal surfaces; element contaminated........................................................................
x
POWER TRAIN:
Transmissions
Stage III corrosion on internal surfaces; seals
deteriorated: leaks
x
Stage II corrosion on internal surfaces;
contaminated lubricant
............................................................................................................. x
Differentials
Stage III corrosion on housing, gears, shafts,
bearings or pinion; deteriorated seals; leaks ......................................................................................................
x
Stage II corrosion on gears, shafts, bearings, or
pinion; lubricant contaminated
............................................................................................................. x
Gear reducer
Stage III corrosion on internal surfaces;
deteriorated seals; leaks
x
Stage II corrosion on internal surfaces; lubricant contaminated ......................................................................
x
ROTOR ASSEMBLY
Hood
Cracked, bent, or distorted; broken welds ............................................
x
Lift bars, lift caps,
and skis
Stage IV corrosion; cracked, bent, or broken .......................................
x
Stage III corrosion
............................................................................................................. x
Tine plates, tines and
rotor shaft
Stage IV corrosion; time plates and/or tines bent,
broken, or distorted
x
Stage III corrosion
............................................................................................................. x
Spraybar:
Piping
Stage IV corrosion on interior surfaces; breaks,
bends or damaged threads; nozzles missing or damaged ................................................................................
x
Stage III corrosion on interior surfaces .............................................................................................................
x
Valves
Stage IV corrosion; broken or frozen.....................................................
x
Stage III corrosion
............................................................................................................. x
Stage II corrosion
.............................................................................................................
x
PUMP AND METERING EQUIPMENT:
Valves
Stage IV corrosion on internal surfaces; handwheel
broken; stem bent or frozen
x
Stage III corrosion on internal surfaces .............................................................................................................
x
Stage II corrosion on internal surfaces .............................................................................................................
x
Pump
Stage IV corrosion on shaft or bearings; impeller
frozen; deteriorated packing, gaskets, or seals ..................................................................................................
x
Stage III corrosion on shaft or bearings .............................................................................................................
x
Stage II corrosion on shaft or bearings .............................................................................................................
x
Flowmeter
Stage IV corrosion on interior surfaces; deteriorated
packing, gaskets or selas; dial face
deteriorated or glass broken
x
Stage III corrosion on interior surfaces .............................................................................................................
x
Stage II corrosion
.............................................................................................................
x
Hose
Stage IV corrosion; damaged threads; checking or
cracking; frayed or cut; loss of flexibility;
fungus growth; broken reinforcing
x
Stage III corrosion
............................................................................................................. x
BASIC ISSUE ITEMS (BII):
Missing ......................................................................................................
x
Deteriorated or damaged
............................................................................................................. x
COMPONENTS AND ACCESSORIES:
Missing; incomplete.................................................................................
x
Deteriorated or damaged
............................................................................................................. x
III-AA-3