Operating instructions

TM 55-4920-394-13&P
Table 3-3. Inspection of Mechanical Parts
PART INSPECT FOR
Ball Bearings Out-of-round, scoring and rough, noisy operation.
Needle Bearings Out-of-round, scoring and rough, noisy operation.
Tapered roller Out-of-round, scoring and rough, noisy operation.
bearings and races
Sleeve bearings Out-of-round, scoring and wear.
Gears Worn, chipped or broken teeth. Fluorescent
penetrant inspection for cracks.
Shafts Wearing, scoring, bent condition, damaged teeth
if applicable.
Port Plate Scoring and wear.
Sleeve and spool Scoring and wear.
Piston Distortion and wear.
Sleeve Scoring and wear.
Barrel Scoring and wear.
Roller Scoring and wear.
Piston-shoe set Scoring and wear.
Brake drum Scoring and wear.
Brake shoes Scoring and wear.
Springs Broken leaf and damage.
Tie rod ends Distortion and wear.
Wheels spindles Inspect for cracks with fluorescent penetrant
method.
Tool Box Dents, punctures and corrosion.
Brake lever Misalignment, distortion, wear and corrosion.
assembly
Oil cooler fan Cracks in hub area, bent blades and unbalance.
Oil cooler Test for obstructed flow and leakage under 150
psig. There should be no external leakage.
3-7