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HOSE AS 4646850 - Caterpillar

4646850 HOSE AS Caterpillar parts HOSE
Alternative (cross code) number:
Caterpillar 4646850 HOSE AS

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Number on catalog scheme: 26
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Assembly Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
B 1P-0510 Driver Group 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g00792512
Use Tooling (B) to install bearings (11) in pump body (10). Note: The bearing joint must be within 30 15 degrees of a centerline through the bores. The bearings must be installed so the bearings are even with face (A).
Install dowels (12) in pump body (10). Note: Install the dowels so the dowels extend 6.40 mm (0.252 inch) above the surface.
Illustration 2 g00792508
Put clean oil on the inside diameter of the bearings in the pump body and on shaft assemblies (9).
Install one shaft assembly (9) in the lower section of the pump. This shaft assembly (9) has the groove (slot) for the key.
Install second shaft assembly (9).
Illustration 3 g00792503
Use Tooling (B) to install bearings (8) in cover (3).
Illustration 4 g01423883
The bearing joint must be within 30 15 degrees from the centerline through the bores.
Install bearings (8) even with face (B). Put clean oil on the inside diameter of each bearing.
Illustration 5 g00792500
Personal injury can result from parts and/or covers under spring pressure.Spring force will be released when covers are removed.Be prepared to hold spring loaded covers as the bolts are loosened.
Install cover (3) on the pump body. Install plunger (4), spring (5), spacer (6), and retainer (7) on the pump. Install the bolts that holdretainer (7). Note: The 1W-729 Oil Pump does not have spacer (10).
Illustration 6 g00792499
Install key (2) in the shaft.
Illustration 7 g01423851
Install gear (1), the washer, and bolt (13). Tighten bolt (13) to a torque of 54 7 N m (40 5 lb ft).
The pump must turn freely after the pump is assembled. End By:
Install the oil pump. Refer to Disassembly and Assembly, "Oil Pump - Install".

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