PISTON AS 2344680 - Caterpillar

Removal Procedure
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products.Dispose of all fluids according to local regulations and mandates.
Turn the fuel supply to the OFF position and turn the power disconnect switch to the OFF.
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Typical Example
Disconnect fuel line (1) to the ARD manifold from both ends.
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Typical Example
Disconnect solenoid harness (2) .
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Remove bolts (3) from the manifold.
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Remove manifold (4) .
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Remove two locknuts (5) .
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Write down the polarity and remove wires (6) from the terminal studs. The polarity is designated by "+" and "-" signs around the terminal studs.
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Remove seal (7) .
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Remove pump assembly (8).
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Remove two backup rings (9), seal (10), and seal (11) from the pump assembly.Installation Procedure
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Proper orientation of the new fuel priming pump.
Use the pump seal installer that is provided in the pump kit to press in new pump (12) and seals.Note: The outlet of the pump should be at the top center position.
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Connect wires (6) on the terminal studs. Install new locknuts (5). Tighten locknuts (5) to a torque of 1.3 N m (12 lb in).