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TM 10-3930-643-34
HYDRAULIC SYSTEM TROUBLESHOOTING AND MAINTENANCE.
12-7.
Boom Assembly Valve. (Sheet 6 of 6)
ASSEMBLY
20.
21.
22.
23.
24.
25.
26.
27.
28.
Install new preformed packing (17) on
plug (19).
Using a 1-1/4” socket and torque
wrench, install items 25 thru 17 as
an assembly in housing (16). Tighten
plug (19) to 75 lb-ft.
Install two new seals (15) and new
wipers (14) in housing (16).
Position seat (12), spring (11) and
seat (10) on spool (13).
Using a flat tip screwdriver, install
new preformed packing (9) and screw
(8). Tighten screw (8) to 4 lb-ft.
Install items 13 thru 8 as an
assembly.
Using a 1/4” hex head adapter and
torque wrench, install plate (7), cap
(6) and two bolts (5).
Tighten two
bolts (5) to 5 lb-ft.
Using a flat tip screwdriver, install
plate (4) and two screws (3).
Install poppet (2) and spring (l).
NOTE
Return M10A Forklift to original
equipment condition.
END OF TASK
12-55
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