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 TM 55-1905-242-14
GENERAL SUPPORT MAINTENANCE
FOR LANDING CRAFT, MECHANIZED (LCM-8) (ALL VESSELS WITH MOD 2 APPLICATION)
STEERING SYSTEM HELM UNIT, REPAIR
INITIAL SETUP:
Materials/Parts:
Tools and Special Tools:
Hydraulic Fluid (Item 1, Table 2, WP 0230 00)
Tool Kit, Mechanic's Rail and Marine (Item 1,
Cleaning Solvent MIL-PRF-680 (Item 2, Table 2, WP 0230 00)
Table 1, WP 0230 00)
Gloves, Chemical Protective (Item 3, Table 2, WP 0230 00)
Vise (Item 3, Table 1, WP 0230 00)
Goggles, Industrial, No Vents (Item 4, Table 2,
Installer Helm Unit Valve Spring (Item 22,
Table 1, WP 0230 00)
Rag, Wiping (Item 5, Table 2, WP 0230 00)
Equipment Condition:
Seal, Plain Encased (p/n 844, qty 1)
Preformed Packing (p/n 20599, qty 1)
Helm unit removed (WP 0179 00)
O-Ring (p/n 20783, qty 1)
Personnel Required:
O-Ring (p/n 15006, qty 1)
Two Watercraft Engineers, 88L
References:
TM 55-1905-242-24P (WP 0079 00)
DISASSEMBLY--SHAFT AND FLANGE ASSEMBLY
WARNING
Cleaning solvent is flammable and its vapor is potentially explosive. Do not use clean-
ing solvent in the vicinity of spark, open flame, or excessive heat. Do not use cleaning
solvent in unventilated spaces. Failure to comply can result in serious injury or death.
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.
1.
Don chemical protective gloves and goggles.
2.
Remove the retaining rings (1 and 2), bearing (3), and retaining ring (4).
3.
Remove the shaft (5) from the tube and flange unit (6).
4.
Remove the key (7) from the shaft (5).
0208 00-1
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