PISTON AS 1422725 - Caterpillar

Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A - Guide Bolt
M8 by 80 mm 2
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Ensure that the water pump is clean and free from wear or damage. If necessary, replace the water pump.
Illustration 1 g01269391
Typical example
If necessary, install cover (6) to water pump (3). Follow Step 2.a through Step 2.d in order to install the cover.
Clean the face of cover (6).
Position a new gasket (5) onto water pump (3).
Install cover (6) to water pump (3).
Install bolts (7) to cover (6). Tighten the bolts finger tight.
Clean the face of front cover (1).
Illustration 2 g01269392
Install Tooling (A) in Position (X).
Use Tooling (A) in order to align a new gasket (2) to front cover (1). Install the gasket to the front cover.
Align water pump (3) with Tooling (A). Install the water pump to front cover (1). Note: Ensure that the gear of the water pump and the gear of the fuel injection pump mesh.
Install bolts (4). Refer to Illustration 1. Tighten the bolts finger tight. Note: Ensure that bolts of different lengths are installed in the correct positions.
Remove Tooling (A) and install remaining bolts (4) finger tight.
Illustration 3 g01269393
Tightening sequence for the water pump
Tighten bolts (4) and bolts (7) to a torque of 22 N m (16 lb ft). Refer to Illustration 1. Tighten the bolts in the sequence that is shown in Illustration 3.
Install the hose to the water pump inlet. Tighten the hose clamps securely.
Fill the cooling system with coolant. Refer to Operation and Maintenance Manual, "Cooling System Coolant - Change" for the correct procedure. End By:
Install the fan and the fan pulley. Refer to Disassembly and Assembly, "Fan - Remove and Install".