COVER ASSEM. 1H2139 - Caterpillar

Assembly Procedure
Note: Clean all components thoroughly. Apply clean oil to the components before assembly.Note: O-rings, gaskets, and seals should always be replaced. A used O-ring may not have the same sealing properties as a new O-ring. A reconditioning procedure should not be degraded because of a low cost component such as an O-ring or a gasket. Use 1U-6396 O-Ring Assembly Compound during the assembly procedure.
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Install orifice sleeve (14) and install retaining ring (13) on valve stem (12). Valve stem (12) is a nonserviceable part.
Apply 138-8436 Liquid Gasket to the threads of plug (15). Install plug (15) on valve stem (12) .
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Install valve stem (12) in the valve body. Position Slot (A) on valve stem (12) for alignment with piston (11) .
Install piston (11), pin (10), and plug (9). The end of piston (11) and Slot (A) need to be in proper alignment in order to tighten plug (9) .
Illustration 4 g00627337
Install cover (8) and bolts (7) on the quick-drop valve.
Improper assembly of parts that are spring loaded can cause bodily injury.To prevent possible injury, follow the established assembly procedure and wear protective equipment.
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Install the nonserviceable piston (not shown) in the valve housing. Install spring (6) in the valve housing.
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Install O-ring seal (3), stop (4), and shims (5) in cover (2) .
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Install cover (2) and bolts (1) .End By: Install the quick-drop valve on the machine. Refer to Disassembly and Assembly, "Quick-Drop Valve - Install".