Operating instructions

TM 55-4920-394-13&P
Table 3-1. General Inspection
PART INSPECT FOR
Tubing Thin spots from improper flaring,
cracks and binds.
Nicks and dents are permissable to
a depth of 10% of the tube wall
thickness.
Threaded fittings, screws, bolts, Worn or damaged threads.
nuts
Oil seals, preformed packing, Cuts or nicks on sealing surface,
grommets, gaskets deterioration, or loss of
elasticity.
Springs Cracks, pitting, broken ends and
lack of tension.
Brackets, panels, mounts, covers, Dents, distortion, punctures,
sheet metal structures, clamps bends, kinks, cuts.
Hoses Deterioration, cracks, cuts,
damaged fittings.
Electrical leads, wiring, cable Damaged insulation, cuts, breaks,
open and short circuits.
Keys Wear, distortion, looseness in
shaft.
Chain Breaks, corrosion.
Castings Magnaflux or fluorescent penetrant
inspection for cracks.
3-5