TM-9-2520-272-40
CROSS-DRIVE TRANSMISSION WITH CONTAINER MODEL X200-4A
TECHNICAL MANUAL; SUSTAINMENT MAINTENANCE MANUAL
FEBRUARY 2012
TM-9-2520-272-40 - Page 534 of 620
TM 9-2520-272-40
0067
Roller, Ball, and Sleeve Bearings
CAUTION
Any bearing that has been subjected to metal contamination must be closely inspected for
metal particles. Metal particles will cause bearing failure.
1. Refer to TM 9-214 for inspection procedures applying to roller and ball bearings.
2. Look at sleeve bearings and bushings for scoring, burrs, sharp edges, or scuff ng. Remove minor scoring,
sharp edges, or scuff ng with crocus cloth. Remove burrs with whetstone.
Plain Encased Seals, Step-Type Seal Rings, and Metal Seal Rings
1. Look at plain encased seals for cracks, cuts, or wear. If not like new in appearance, discard seals.
2. Look at composition of seal rings (step-type) for cuts, cracks, or wear. If not like new in appearance, discard
seal rings.
3. Look at hook-type metal seal rings for cracks, bends, or broken hooks. If not like new in appearance, discard
seal rings.
Gears and Splined Parts
1. Look at gears for burrs, cracks, chipped or broken teeth, or pitting at tooth contact areas. Remove burrs with
whetstone. Discard gears that are excessively pitted, cracked, or have chipped or broken teeth.
2. Look at splined parts for twisted or broken splines, burrs, or excessive wear. Remove burrs with whetstone.
Discard parts that have twisted or broken splines or excessive wear.
Shafts and Thrust Washers
1. Look at shafts for scoring, burrs, bends, blue discoloring, or clogged oil passages. Remove burrs and minor
scoring with crocus cloth or whetstone. Clear oil passages with soft wire or compressed air. Discard shafts
that are bent, cracked, or deeply scored.
2. Look at thrust washers for cracks, bends, scoring, discoloring, or burrs. Remove burrs with whetstone. Discard
thrust washers that are cracked, bent, scored, or discolored.
Friction Plates and Reaction Plates
1. Look at friction-faced, internal-splined friction plates for cracks, burrs, chipped or broken spline teeth, or
severely pitted faces. Remove burrs with whetstone. If any one plate is cracked, severely pitted, or has chipped
or broken spline teeth, DISCARD COMPLETE PACK OF CLUTCH PLATES.
2. Look at steel external-tanged reaction plates for cracks, breaks, burrs, galling, embedded metal, scoring, or
chipped or broken tangs. Remove minor scoring and burrs with crocus cloth or whetstone. If any one plate
is cracked, severely pitted or scored, or has chipped or broken tangs, DISCARD COMPLETE PACK OF
CLUTCH PLATES.
3. Assemble clutch plates in the same order and facing the same way as when disassembled. Heat and pressure
can cause steel reaction plates or plates to “cone,” or take on a slight conical shape. Fiber-coated friction
plates may warp.
0067
‐
6
Back to Top
