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TM 5-2420-222-34
15-4.
BACKHOE MAIN FRAME MAINTENANCE (Con’t).
CAUTION
Do not remove sleeve bushings unless damaged.
Removal may damage parts.
7.
Using remover and installer and ball-peen hammer, remove
four sleeve bushings (14) from main frame (1).
c.
CLEANING AND INSPECTION
WARNING
Dry cleaning solvent, P-D-680, is toxic and flammable. Always wear protective
goggles and gloves, and use only In a well-ventilated area. Avoid contact with
skin, eyes, and clothes, and DO NOT breathe vapors. DO NOT use near open flame
or excessive heat. The solvent's flash point is 100°F-138°F (38°C-59°C). If you
become dizzy while using cleaning solvent, immediately get fresh air and medical
help. If solvent contacts eyes, immediately wash your eyes and get medical aid.
1.
Clean main frame with dry cleaning solvent and rags. Dry thoroughly with clean, dry rags.
2.
Clean all other metal parts with dry cleaning solvent and rags. Dry thoroughly with clean, dry rags.
3.
Inspect main frame for cracks, breaks, abnormal bends, and damaged threads.
4.
Inspect all other metal parts for cracks, breaks, and abnormal bends.
d.
REPAIR
1.
If main frame (1) has cracks, breaks, or broken welds, repair by welding (see TM 9-237).
2.
Restore damaged main frame (1) threads using screw threading set.
e.
ASSEMBLY
NOTE
Perform step 1 only if sleeve bushings were removed.
1.
Using a suitable press, install four sleeve bushings (14) in main frame (1).
2.
If removed, install decal (see TM 5-2420-222-20).
TA701648
15-19
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