TM 5-3810-306-34
TWO-SECTION HYDRAULIC PUMP ASSEMBLY AND PRIORITY VALVE
TOOLS:
General mechanic's tool kit: automotive (5180-00-177-7033)
Shop Equipment Auto-Maintenance and Repair, FM Basic (4910-00-754-0705)
Shop Equipment Auto-Maintenance and Repair, FM Supply No. 1 (4910-00-754-0706)
Tool Outfit Hyd System, Test and Repair, 3/4 Ton Trailer Mtd (4940-01-036-5784)
Seal removal tool (Item 3, Appendix C)
Carborundum stone
Lip seal Installer (Item 7, Appendix C)
Sleeve (Item 5, Appendix C)
SUPPLIES:
Preformed packing (Item 89, Appendix B)
Preformed packing (Item 9, Appendix B)
Seal (Item 88, Appendix B) (4 Required)
Parts kit (Item 87, Appendix B)
Lint free cloth (Item 91, Appendix B)
Solvent P-D-680 (Item 1, Appendix B)
Form-a-gasket (Item 75, Appendix B)
EQUIPMENT CONDITIONS: Two-Section hydraulic pump assembly removed. (Refer to page 13-24.)
DISASSEMBLY:
CAUTION
CAUTION
If end cover (9) will not lift off, pry it
off using care to avoid damaging
When securing pump in a vise, do not
machined surfaces.
grip on or near machined surfaces.
NOTE
1. REMOVE PRIORITY VALVE (28) AND PORT
END COVER (9).
If thrust plate (13) remains in gear
housing (15), tap it out with a wooden
a. Place pump in a vise with shaft pointing
hammer handle. Avoid distorting the
down. Index mark all sections with a prick
thrust plate.
punch for proper alignment during
assembly.
d. Remove port end cover.
b. Remove nuts (2) and washers (8) securing
2. REMOVE GEAR HOUSING (15).
priority valve (28) to port end cover (9).
Remove priority valve (28).
CAUTION
c. Remove nuts (2) and washers (8) from
If it is necessary to pry housing
port end cover (9).
loose, use care to avoid damaging
machined surfaces.
13-26
