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TM 5-2420-222-34
14-4.
HYDRAULIC PUMP DRIVE SHAFT AND COUPLER MAINTENANCE (SERIAL NUMBERS 235786-235999)
Con’t).
2.
Remove two capscrews (2) from drive shaft (6) and front coupling half (8).
3.
Slide drive shaft (6) and front coupling half (8) forward on hydraulic pump (5).
4.
Remove front coupling half (8) and coupling cushion (9) from drive shaft (6) and rear coupling half (1).
5.
Remove two special capscrews (4) and rear coupling half (1) from crankshaft pulley (7).
6.
Slide drive shaft (6) off hydraulic pump (5).
b.
CLEANING AND INSPECTION
1.
Clean coupling cushion with water and detergent. Rinse with clean water and dry thoroughly with clean, dry rags.
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.
2.
Clean all metal parts with dry cleaning solvent and rags. Dry thoroughly with clean, dry rags.
3.
Inspect coupling cushion for cracks, breaks, tears, and excessive wear.
4.
Inspect all metal parts for cracks, breaks, and abnormal bends.
5.
Inspect drive shaft for damaged threads.
c.
REPAIR
Restore damaged drive shaft (6) threads using screw threading set.
d.
INSTALLATION
1.
Slide drive shaft (6) in place on hydraulic pump (5).
2.
Position rear coupling half (1) in place on crankshaft pulley (7) and secure with two special capscrews (4). Torque
special capscrews to 32-38 lb.-ft. (43-52 N•m).
3.
Position coupling cushion (9) in place on rear coupling half (1) with teeth engaged.
4.
Position front coupling half (8) in place on coupling cushion (9) with teeth engaged.
5.
Slide drive shaft (6) rearward on hydraulic pump (5) until positioned against front coupling half (8).
6.
Turn drive shaft (6) until holes in drive shaft aline with holes in front coupling half (8).
7.
Install two capscrews (2) in drive shaft (6) and front coupling half (8). Torque capscrews to 32-38 lb.-ft. (43-52
N•m).
14-30
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