AP-1055D and BG-2455D Asphalt Pavers Machine Systems Caterpillar

Piston Pump (Left Propel) - Remove

Usage:

Removal Procedure

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Table 1
Required Tools
Tool	Part Number	Part Description	Qty
ZZ	6V-9511	Face Seal Plug (1 3/16 - 12 THD)	4
	6V-9832	Cap Assembly (1 3/16 - 12 THD)	4
	6V-9512	Face Seal Plug (1 7/16 - 12 THD)	2
	6V-9833	Cap Assembly (1 7/16 - 12 THD)	2

Start By:

Remove the piston pump (left drag conveyor and right auger conveyor). Refer to Disassembly and Assembly, "Piston Pump (Left Drag Conveyor and Right Auger Conveyor) - Remove".
Remove the piston pump (hydraulic generator), if equipped. Refer to Disassembly and Assembly, "Piston Pump (Hydraulic Generator) - Remove".

Note: SERVICE DATA: TOOLING (ZZ) WILL NOT BE IDENTIFIED IN PHOTOGRAPHS IN THE REMOVAL OR THE INSTALLATION. THIS TOOLING IS SHOWN IN ORDER TO ASSIST THE EXPERIENCED SERVICEMAN.

Note: Put identification marks on all hoses, on all hose assemblies, on all wires, and on all tube assemblies for installation purposes. Plug all hose assemblies and all tube assemblies. This helps to prevent fluid loss, and this helps to keep contaminants from entering the system.

Drain the oil from the pump drive into a suitable container. Refer to Operation and Maintenance Manual for the correct procedure.

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Illustration 1	g01141395

Disconnect harness assemblies (1) from piston pump (2) .

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Illustration 2	g01141394

Disconnect hose assemblies (3) from piston pump (2) .

Disconnect hose assemblies (4) from piston pump (2) .

Disconnect hose assemblies (5) from piston pump (2) .

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Illustration 3	g01141396

Attach a suitable lifting device to piston pump (2). Remove bolts (6) and remove piston pump (2) from the machine. The weight of piston pump (2) is approximately 77 kg (170 lb).