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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 COUNTERBALANCE VALVE, REPLACE
INITIAL SETUP:
Tools and Special Tools:
Materials/Parts:
Tool Kit, Mechanic's Rail and Marine (Item 1,
Cleaning Solvent MIL-PRF-680 (Item 2, Table 2,
Table 1, WP 0230 00)
Suitable Drain Pan
Hydraulic Fluid (Item 1, Table 2, WP 0230 00)
Gloves, Chemical Protective (Item 3, Table 2, WP 0230 00)
Equipment Condition:
Goggles, Industrial, No Vents (Item 4, Table 2,
Propulsion engines secured, locked out, and
tagged out IAW FM 55-502
Sealant (Tape, Antiseizing) (Item 14, Table 2, WP 0230 00)
Personnel Required:
References:
One Watercraft Engineer, 88L
FM 55-502
TM 55-1905-242-24P (WP 0083)
REMOVAL
WARNING
Do not allow hydraulic fluid or cleaning solvent to come in contact with unprotected
skin or eyes. Prolonged skin contact can cause illness or injury. Eye contact can cause
serious injury. Always wear chemical protective gloves and goggles when handling
used hydraulic fluid and cleaning solvent. Failure to comply can result in illness, seri-
ous injury, or death.
Hydraulic hoses and lines may be under pressure. Relieve pressure by operating the
appropriate control valve if possible. Loosen fittings on hose lines slowly. Allow oil to
run around threads of fitting, releasing pressure before disconnecting fitting. Releasing
pressurized oil suddenly may cause serious injury or death.
1.
Don chemical protective gloves and goggles.
2.
Position a suitable drain pan beneath the work area.
3.
Loosen, but do not remove, the hydraulic hoses (1) and unions (2) connected to the counterbalance valve (3) to permit
any residual hydraulic pressure or fluid to drain from the system.
4.
Label and remove the hydraulic hoses (1) and unions (2) from the counterbalance valve (3) and remove the valve. Cap
the open hoses and unions to prevent contamination of the system.
5.
Label and remove the counterbalance valve piping (4) from the counterbalance valve (3).
0183 00-1
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