3406 INDUSTRIAL & MARINE ENGINES Caterpillar

(1) Oil seal. Put engine oil on the seal lip. Assemble with the lip toward the bearings.

(2) Water seal and ring:

a. Put water on the seal.

b. Install the seal and ring together in the housing bore with the shiny face of the ring outside.

(3) Seal assembly:

a. Remove the spring from the seal.

b. Put water inside the seal assembly

c. Install the seal assembly around the shaft until the carbon face makes contact with the shiny face of the ring (2).

d. Install the spring.

(4) Torque for bolt that holds the impeller ... 28 ± 2 lb. ft.(39 ± 3 N·m)

(5) Clearance between the impeller and the housing ... .022 to .059 in(0.56 to 1.50 mm)

(6) Torque for bolt that holds the gear:

2P3205 3/8-16 NC Bolt ... 42 ± 5 lb. ft.(58 ± 7 N·m)

1A1135 5/8-11 NC Bolt ... 150 ± 20 lb. ft.(205 ± 25 N·m)