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TM 10-3930-643-34
HYDRAULIC SYSTEM TROUBLESHOOTING AND MAINTENANCE.
12-7.
Boom Assembly Valve. (Sheet 2 of 6)
DISASSEMBLY
1.
2.
3.
4.
5.
6.
Remove spring (1) and poppet (2).
Using a flat tip screwdriver, remove
two screws (3) and plate (4).
Using a 1/4”
socket head screw key,
remove two bolts (5), cap
(6) and
plate (7).
Remove items 8 thru 15 as an assembly
from housing (16). Note position of
spool (13) to aid in installation.
Using a flat tip screwdriver, remove
screw (8) and preformed packing (9).
Discard preformed packing (9).
Remove seat (10), spring
(11) and
seat (12) from spool (13).
Remove and discard two wipers (14)
and seals (15) from housing (16).
Using a 1-1/4” socket and socket
wrench handle, remove items 17 thru
25 as an assembly from housing (16).
Go to sheet 3
12-51
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