TM 1-1730-227-13&P
STANDARD AIRCRAFT MAINTENANCE TRAILER
PART NO. 4920-EG-081 NSN 1730-01-086-1653
HUB AND BEARINGS
INITIAL SETUP:
Tools and Special Tools
Materials/Parts (cont.)
Tool Kit, Aircraft Maintenance (WP 0036 00, Item 2)
Grease, Automotive (WP 0035 00, Item 1)
Tool Set, Intermediate Maintenance
Pin, Cotter (WP 0035 00, Item 5)
(WP 0036 00, Item 3)
Seal, Grease (WP 0035 00, Item 6)
Materials/Parts
Personnel Required
Cleaning Compound, Solvent (WP 0035 00, Item 2)
MOS 15H
INSPECTION OF INSTALLED ITEMS
Figure 1.
Bearings Assembly.
1.
Raise wheels off ground for the following checks.
2.
Check wheel for any sideways movement of bearings.
3.
Check bearings (Figure 1, Item 2 and 6 ) for excessive noise when wheel is rotated.
4.
Check tire and hub (Figure 1, Item 5 ) and bearings (Figure 1, Item 2 and 6 ) for worn or damaged parts.
SERVICE
WARNING
Cleaning solvent MIL-PRF-680 is flammable and a skin irritant. Keep open flame away, avoid
prolonged skin contact, and wash contacted skin area.
1.
Rinse bearings (Figure 1, Item 2 and 6 ) in Cleaning Compound, Solvent to remove old grease. Remove
bearings (Figure 1, Item 2 and 6 ) from solvent and let air dry.
2.
Repack bearings (Figure 1, Item 2 and 6 ) with Grease, Automotive.
REMOVAL
1.
Remove hub cap (Figure 1, Item 8) from tire and hub (Figure 1, Item 5).
2.
Straighten the ends of the cotter pin (Figure 1, Item 7) and pull out of the slotted hex nut (Figure 1, Item 9).
3.
Unthread the slotted hex nut (Figure 1, Item 9) and remove thrust washer (Figure 1, Item 10) and outer
bearing cone (Figure 1, Item 6).
0025 00-1