D379B, D398B & D399 GENRERATOR SET ENGINES Caterpillar


Piston Cooling Tubes

Usage:

Remove Piston Cooling Tubes

start by:

a) remove engine oil cooler

b) remove fresh water pump

c) remove starters

d) remove engine oil pump

e) remove oil pressure relief valve

1. Fasten a hoist and remove the prelubrication oil pump and motor as a unit (if so equipped). Weight is 105 lb. (47.3 kg).

2. Remove the wire harness and plate for prelubrication oil pump and motor.

3. Remove the bolts (1) that hold inspection covers to cylinder block. Remove inspection covers (2) from each side of block.

4. Remove the bolt (3) and lock that hold tube to bottom side of lifter bracket. Remove the piston cooling tubes (4).

Install Piston Cooling Tubes

1. check the alignment of the piston cooling tubes with tooling (A). See USE OF 5P8709 TOOL GROUP FOR ALIGNMENT OF PISTON COOLING JETS, Form No. SMHS7267, for the correct alignment procedure.

2. Install the piston cooling tubes (1) in position on the lifter bracket. Install the locks and bolts.

3. Install the inspection covers on engine.

4. Install wire harness and plate for prelubrication oil pump and motor. Fasten a hoist and install prelubrication oil pump and motor as a unit (if so equipped).

end by:

a) install engine oil pump

b) install fresh water pump

c) install engine oil cooler

d) install oil pressure relief valve

e) install starters

Caterpillar Information System:

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