CAT Water Delivery System (WDS) and 785D WTR OEM Off-Highway Truck/Tractor Caterpillar


Gear Pump (Charge) - Assemble

Usage:

785D DMC

Specifications




Illustration 1g02775852

Table 1
Specification for 177-8924 Pump Gear Gp    
Item     Qty     Part     Specification Description    
1     8T-5001     Bolt     Torque bolt to
70.5 ± 2.5 N·m (52.2 ± 1.85 lb ft)
.    

Assembly Procedure

Table 2
Required Tools    
Tool     Part Number     Part Description     Qty    
A     1P-1857     Snap Ring Plier     1    


NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened component life.


Note: Cleanliness is an important factor. Before assembly, thoroughly clean all parts in cleaning fluid. Allow the parts to air dry. Do not use wiping cloths or rags to dry parts. Lint may be deposited on the parts which may cause trouble. Inspect all parts. If any parts are worn or damaged, use new parts for replacement. Dirt and other contaminants can damage the precision component. Perform assembly procedures on a clean work surface. Keep components covered and protected at all times.

Note: Check the O-ring seals for wear or for damage. Replace the components, if necessary.

Note: Lubricate O-rings and seals with lubricant used while in operation.




    Illustration 2g03383605

  1. Install bearing (11) into mounting plate (9). Use tool (A) to install snap ring (10) .



    Illustration 3g03383606

    Note: O-rings (4) that are located at end plate (3) and located at mounting plate (9) of gear pump housing (1) are identical. The O-rings located at both ends of double bushing assembly (6) are identical. The double bushing assemblies located at both ends of gear shafts (7) and (8) are identical.

  1. Install the O-rings on double bushing assembly (6). Install the double bushing assembly on mounting plate (9) .

  1. Install drive gear shaft (7) and install driven gear shaft (8). Install two pins (5) on mounting plate (9) .



    Illustration 4g03384118

  1. Install O-rings (4) on gear pump housing (1). Install the gear pump housing on mounting plate (9) .

  1. Install the O-rings on double bushing assembly (6). Install the double bushing assembly into gear pump housing (1). Install two pins (7) on the gear pump housing.



    Illustration 5g03384121

  1. Install end plate (3) on gear pump housing (1). Install four bolts (2) .

  1. Tighten bolts (2) to a torque of 70.5 ± 2.5 N·m (52 ± 1.8 lb ft).

End By: Install the gear pump.

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