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TM 9-5130-338-12&P
4-16. RELIEF ADJUSTMENT SCREW REPLACEMENT-Continued.
a.
Removal.
1.
Loosen nut (1).
2.
Remove screw (2) and nut (1) from motor
cap (3).
3.
Remove nut (1) from screw (2).
b.
Installation.
1.
Install nut (1) on screw (2).
2.
Install screw (2) in motor cap (3).
c.
Adjustment.
1.
Turn screw (2) clockwise, until it bottoms,
then turn counterclockwise 1-1/2 full turns.
2.
Secure screw (2) in position with nut (1).
4-17. HYDRAULIC IMPACT WRENCH REPAIR.
This task covers:
a. Disassembly
b. Inspection
c. Assembly
d. Testing
INITIAL SETUP
Tools
Materials/Parts - Continued
Tool kit, common No. 1 (SC 4910-95-CL-A74)
Packing, flat preformed (Appx. F, item 10)
Socket wrench attachment, socket head screw,
Packing, round preformed (Appx. F, item 11)
5/16-in., 3/8-in.-drive (5120-00-683-8602)
Snapring (Appx. F, item 13)
Wrench, torque, 0-600 lb-in., 3/8-in.-square drive
Solvent, dry-cleaning (Appx. C, item 16)
(5120-00-542-5681)
Equipment Conditions
Materials/Parts
Impact head assembly removed (see para. 4-11).
Cloth, cleaning (Appx. C, item 5)
Reversing spool and two packings removed (see
Lockwasher (8) (Appx. F, item 3)
para. 4-13).
Oil, lubricating (Appx. C, item 13)
Relief valve removed (see para. 4-15).
Packing, preformed (Appx. F, item 6)
Relief adjustment screw removed (see para. 4-16).
Packing, preformed (Appx. F, item 9)
4-16
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