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TM 10-4930-241-13
4-18. COUPLER ASSEMBLY REPAIR
This task covers:
a. Disassembly
b.
Cleaning
c.
Repair
d.
Assembly
INITIAL SETUP:
Tools:
Thread Sealant
(Item 3, App E)
General Mech. Tool Kit
(App B, Sect III, Item 1)
Silicone Lubricant
(Item 6, App E)
Vise
(App B, Sect III, Item 2)
Coupling Gasket (2)
(Item 10, App I)
Pipe Wrench (2 ea)
(App B, Sect III, Item 5)
Seal
(Item 25, App I)
Adjustable Wrench
(App B, Sect III, Item 2)
Cotter Pin
(Item 26, App I)
Equipment Condition:
Cotter Pin
(Item 27, App I)
Coupler removed
(para 2-20)
Seal
(Item 28, App I)
Material/Parts:
Cylinder
(Item 29, App I)
Cleaning Solvent
(Item 1, App E)
Wiping Rag
(Item 2, App E)
NOTE
Ensure that all parts identified as mandatory replacement parts are discarded and replaced with new
components.
a.
Disassembly.
Remove Couplings. Refer to figure 4-7.
(1)
Place coupler in vise.
(2)
Remove split rings (1 and 2) and chain (3).
(3)
Remove dust cap (4), then remove gasket (5) from dust cap (4).
(4)
Remove male coupling half (6) from coupler body (7).
(5)
Remove gasket (8) from coupler body (7).
Disassemble Coupler. Refer to figure 4-8.
(6)
Turn handle (1) to open position.
(7)
Remove cotter pin (2) from end of shaft (3).
(8)
Drive out groove pin (4) from handle (1). Pin must be driven out in the opposite direction of the flow arrow
on handle (1).
4-24
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