Cleaning compound (MIL-PRF-29602) may cause irritation to the eyes or skin. Use in
well-ventilated areas and keep away from heat and open flame. Wear protective goggles
and clothing. In case compound comes in contact with:
Eyes, flush immediately with water.
Skin, wash with soap and water.
Failure to comply may result in personnel injury or death.
Clean all metal parts with cleaner.
Do not exceed 40 PSI (276 kPa) when using compressed air for checking
components. Failure to comply may result in personnel injury or death.
Flying particles and debris are present. Wear protective goggles. Failure to comply
may result in personnel injury or death.
Dry all parts with compressed air.
END OF TASK
Inspect all parts for cracks, damaged threads or excessive wear. Replace damaged parts.
Using outside micrometer, measure thrust washer (Figure 4, Item 5) for minimum thickness of
0.2350 in. (0.5969 cm) and maximum thickness of 0.2450 in. (0.6223 cm). Replace damaged parts.
Using outside micrometer, measure thrust bearing (Figure 4, Item 4) for minimum thickness of
0.0590 in. (0.14986 cm) and maximum measurement must not exceed 0.0610 in. (0.15494 cm).
Replace damaged parts.
Using inside micrometer, measure bore of bushing (Figure 5, Item 1) for minimum measurement not to
exceed 1.6260 in. (4.13004 cm) and maximum measurement not to exceed 1.6265 in. (4.13131 cm).
Record diameter. Replace damaged parts.
Using micrometer, measure base of blower support shaft (Figure 4, Item 1).
Verify measurements are between 1.6240 in. (4.12496 cm) and 1.6250 in. (4.1275 cm). Record diameter.
Subtract Step 4 from Step 6.
If parts are new, allowable tolerance is 0.0010 (0.00254 cm) to 0.0025 in. (0.00635 cm).
If old parts are to be re-used, the allowable tolerance is up to 0.0050 in. (0.0127 cm).
Inspect drive teeth for scoring, pitting or evidence of overheating. Replace damaged parts.