3126B Industrial Engine Caterpillar

Assembly Procedure

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Illustration 1	g01026872

1. Install the shaft and the bearing into pulley (5) with a press. Install the shaft until the shaft is flush with the end of pulley (5) .

2. Press the shaft, the bearing, and pulley (5) as a unit into water pump housing (4). The distance between the front of pulley (5) and the machined surface of water pump housing (4) must be 103.8 ± 0.3 mm (4.09 ± 0.01 inch).

3. Install seal (3) in water pump housing (4) with Tooling (B) .

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Illustration 2	g01026894
Typical example

4. Install impeller (2) on the shaft of the water pump with a press. Install the impeller until the distance between the impeller and the machined surface of the water pump is 0.75 ± 0.25 mm (0.030 ± 0.010 inch).

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Illustration 3	g01026865

5. Install a new gasket and cover (1) .

End By: Install the water pump. Refer to Disassembly and Assembly, "Water Pump - Install".