ELEMENT 4798989 - Caterpillar

Illustration 1 g01619933Maximum leakage per minute for the water seal at 138 kPa (20 psi) of air pressure is less than 20 cc (1.2 cubic inch).Minimum leakage per minute for the lip type seal at 138 kPa (20 psi) of air pressure is less than 24 cc (1.5 cubic inch). (A) The sleeve bearing is installed from the end of the housing assembly. ... 0.00 to − 0.25 mm (0.000 to − 0.010 inch) (B) Bore in the new sleeve bearing after assembly for the pump shaft assembly ... 54.122 0.025 mm (2.1308 0.0010 inch) (1) Lubricate the bore of the O-ring seal lightly with the clean engine oil, glycerin or clean water. (2) Lubricate the bore of the O-ring seal lightly with the lubricant that is being sealed. (3) Torque for the bolt ... 38 4 N m (28 3 lb ft) (4) Torque for drain plug ... 35 5 N m (26 4 lb ft) (5) Torque for pipe plug ... 14 2 N m (10 1 lb ft)Use the following procedure in order to install the water pump seal assembly (6):
Remove the spring from the water pump seal assembly.
Put clean water or P-80 lubricant in order to aid the water pump seal assembly. Use the installation tool and hand pressure to install the rubber seal and the ceramic ring as a unit in the housing bore. Be certain that the shiny face of the ceramic ring is installed toward the water pump seal assembly.
Use the seal installation tool and hand pressure to install the water pump seal assembly on the shaft until the faces of the seals make light contact with each other. Note: The seal installation tool is part of the replacement water pump seal assembly.
Illustration 2 g01619936
Install the spring. Assembled length (C) ... 17.45 0.79 mm (0.687 0.031 inch)Load at assembled length ... 40.03 4.45 N (9 1 lb) (7) Do not lubricate the sealing lip of the lip type seal.