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 TM 10-3930-660-24-1
BOOM HYDRAULIC HOSES AND ELECTRICAL CABLE TENSION MAINTENANCE - CONTINUED
0194 00
CHECKING AND ADJUSTING - CONTINUED
1.
Fully extend boom and place in horizontal position
(TM 10-3930-660-10).
2.
Remove four bolts (1), four lockwashers (2) and boom
cover (3) from rear of boom. Discard lockwashers.
2
3
1
409-749
3.
Check tension of boom hydraulic hoses (4) and elec-
trical cable (5).
8
7
4.
Loosen two jamnuts (6) at hose tension plate (7).
5.
Adjust hose tension bolts (8) at hose tension plate (7)
until compressed length of hose tension springs (9) is
2-1/4 to 2-1/2 in. (5.7 to 6.4 cm) long.
6
9
4
5
409-750
NOTE
Ensure that boom hydraulic hoses and boom electrical cable are routed properly over hose tension plate and
over pulley assembly at rear of boom.
Two of the three hydraulic hoses are identical in size. Ensure that these hoses are not crossed inside the
boom.
6.
Pull on hydraulic hoses (4) at pulley assembly (10)
and at hose tension plate (7) to check for slack in
hoses (4).
7.
Pull on boom electrical cable (5) at pulley assembly
(10) and at tension plate (7) to check for slack in cable
(5).
8.
If slack is found in steps 6 and/or 7, adjust tension of
boom hydraulic hoses (4) and boom electrical cable
(5).
10
5
4
409-751
0194 00-2
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