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TM 5-2420-222-34
14-16.
LOADER BUCKET RELIEF VALVES MAINTENANCE (Con’t).
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.
• Compressed air used for cleaning or drying purposes, or for clearing restrictions,
should never exceed 30 psi (207 kPa). Wear protective clothing (goggles/shield,
gloves, etc.) and use caution to avoid injury to personnel.
1.
Clean all metal parts with dry cleaning solvent. Dry thoroughly with compressed air.
2.
Inspect spring for cracks, breaks, and abnormal bends. Using spring tester and torque wrench, compress spring
with 122 lb (543 N) of force and measure compressed length of spring. Compressed length must be 1.5 in. (38.1
mm).
3.
Inspect all other metal parts for cracks, breaks, and abnormal bends. Inspect threaded parts for damaged
threads.
d.
REPAIR
Restore any damaged threads using screw threading set.
TA701604
14-81
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