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TM 5-2420-222-34
15-3.
BACKHOE SWING FRAME MAINTENANCE (Con’t),
b.
DISASSEMBLY
1.
Remove three grease fittings (22) from swing frame (6).
Discard grease fittings.
CAUTION
Do not remove sleeve bushings unless damaged.
Removal may damage parts.
2.
Using ball-peen hammer and brass drift, drive two sleeve
bushings (23) out of swing frame (6).
3.
Using ball-peen hammer and brass drift, drive two sleeve
bushings (25) out of swing frame (6).
4.
Using ball-peen hammer and brass drift, drive two sleeve
bushings (26) out of swing frame (6).
5.
Remove two grease fittings (24) from swing frame (6).
Discard grease fittings.
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 swing 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 all metal parts for cracks, breaks, and abnormal bends.
4.
Inspect swing frame for damaged threads.
d.
REPAIR
Restore damaged swing frame (6) threads using screw threading set.
e.
ASSEMBLY
1.
Install two new grease fittings (24) in swing frame (6).
TA701643
15-14
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