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 TM 55-1905-242-14
DIRECT SUPPORT MAINTENANCE
FOR LANDING CRAFT, MECHANIZED (LCM-8) (ALL VESSELS WITH MOD 2 APPLICATION)
STEERING SYSTEM RELIEF VALVE, ADJUST
INITIAL SETUP:
Tools and Special Tools:
Personnel Required:
Tool Kit, Mechanic's Rail and Marine (Item 1,
One Watercraft Engineer, 88L
Table 1, WP 0230 00)
Equipment Condition:
Access panel below helm removed
ADJUST
1.
With at least one propulsion engine running, turn the helm hard port or hard starboard until resistance is felt. Continue
to hold the helm against the resistance while noting the hydraulic pressure on the console gauge. This is the relief
pressure. Desired relief pressure is 1500 lb/in (103 bar).
2.
If the relief pressure is incorrect, adjust it by performing the following procedures:
a.
Remove the cap nut (1) from the relief valve (2).
b.
Hold the adjusting bolt (3) stationary with a screwdriver while loosening the locknut (4).
c.
Turn the adjusting bolt (3) clockwise to increase the relief pressure or counterclockwise to reduce the relief pressure
as required.
d.
When the proper relief pressure has been achieved, hold the adjusting bolt (3) stationary with a screwdriver while
tightening the locknut (4).
e.
After tightening the locknut (4), check the relief pressure again and readjust if necessary.
f.
After final adjustment is achieved, install the cap nut (1) and tighten it snugly.
END OF WORK PACKAGE
0180 00-1/2 blank
0180 00-1
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