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 TM 5-2420-224-34
BACKHOE CONTROL VALVE, DIPPER AND BUCKET SECTION VALVES
R E P A I R (CONT)
INSTALL new PACKING (13) and washer (14)
8.
on spool (4).
INSTALL SPOOL (4) in valve body (12).
9.
1 0 . INSTALL PLUG (15) and TIGHTEN to
20-30 Ib-ft (27-41 N.m).
CAUTION
Check tags to be sure correct
safety relief valve is installed in
c o r r e c t place, otherwise valve
s e c t i o n will not work properly.
NOTE
Steps 11 thru 14 are the same for
both safety relief valves.
11. INSTALL new packing (16), POPPET (17),
spring (18), spring (19), new packing (20),
piston (21), and retainer (22) in valve body
(23).
12. INSTALL retaining RING (24).
20-74
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