TM 9-2320-272-24-3
Drycleaning solvent is flammable and toxic. Do not use near an
open flame and always have a tire extinguisher nearby when
solvents are used. Use only in well-ventilated places, wear
protective clothing, and dispose of cleaning rags in approved
container. Failure to do this may result in injury to personnel
and/or damage to equipment.
Clean all items with drycleaning solvent before inspection (para. 2-14).
1.
Inspect side roller shaft (4) for cracks and wear. Measure outer diameter of shaft (4) at bushing (6)
2.
contact points. Discard if cracked or if any outer diameter is less than 0.994 in. (25.25 mm).
Inspect bushings (6) for scoring and wear. Measure inner diameter of bushings (6). Discard if scored
3.
or inner diameter is more than 1.010 in. (25.65 mm).
NOTE
Perform steps 4 and S only if bushings are to be replaced.
4.
Using arbor press and mandrel, remove two bushings (6) from roller (7). Discard bushings (6).
5.
Install two new bushings (6) on roller (7).
6.
Inspect thrust washers (5) for cracks and wear. Measure thickness of thrust washers (5). Discard if
cracked or if thickness is less than 0.040 in. (1.02 mm).
7.
Inspect roller shaft (3) for cracks, scoring, and wear. Measure diameter where bearings (1) contact
shaft (3). Discard if cracked, scored, or any measured diameter is less than 1.495 in. (37.97 mm).
Inspect thrust washers (2) for chips, cracks, scoring, and wear. Measure thickness of thrust
8.
washers (2). Discard if chipped, cracked, scored, or thickness is less than 0.052 in. (1.30 mm).
Inspect two bearings (1) for chips, pitting, cracks, and damaged cage. Discard if chipped, pitted,
9.
cracked, or cage is damaged.
4-844