HOSE AS 4646843 - Caterpillar

Install spacer (24) . Raise the temperature of bearing (25) to a temperature of 135 °C (275 °F) and install bearing (25) on the shaft.
Raise the temperature of gear (23) to a temperature of 135 °C (275 °F) and install gear (23) on the shaft.
Illustration 6 g01425765
Install shaft assembly (21) into the pump housing. Position lock (20) and install bolts (22) . Tighten bolts (22) to a torque of 12 3 N m (9 2 lb ft).
Illustration 7 g01425766
Install retainer ring (14) on the shaft with Tool (C) .
Install bearing (17) . Raise the temperature of bearing (15) to a temperature of 135 °C (275 °F). Install bearing (15) . Install spacer (18) , shims (16) , and keys (13) and (19) on the shaft.
Illustration 8 g01425875
Install the shaft assembly in the pump housing.
Install retainer ring (12) with Tool (A) .
Illustration 9 g01425770
Install gear (10) , the washer, and nut (11) . Tighten nut (11) to a torque of 60 7 N m (44 5 lb ft).
Illustration 10 g01425772
Clean water only is permitted for use as a lubricant for assistance at installation. Do not damage or put hands on the wear surface of the carbon ring or the ceramic ring. Install the ceramic ring with the smoothest face of the ring toward the carbon seal assembly.
Position the lower portion of seal assembly (9) in hot water. Install seal assembly (9) on the shaft. Install shims (7) and key (8) .
Illustration 11 g01425775
Personal injury can result from parts and/or covers under spring pressure.Spring force will be released when covers are removed.Be prepared to hold spring loaded covers as the bolts are loosened.
Install spring (6) and retainer (5) .
Illustration 12 g01425776
Restrain gears with a soft jawed vise. Install impeller (4) and locknut (3) . Tighten locknut (3) to a torque of 29.5 2.5 N m (21.80 1.80 lb ft).Note: Do not hold impeller (4) while tightening locknut (3) .
Illustration 13 g00792363
Check the clearance of the impeller. Shims should be added just until the impeller is clear of the housing.
Illustration 14 g00792161
Install gasket (2) on the impeller housing.
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Install impeller housing (2) on pump housing (1) . Ensure that the identification marks are in alignment.
Illustration 16 g00792366
Check the impeller clearance again.End By: Install the auxiliary water pump. Refer to Disassembly and Assembly, "Auxiliary Water Pump - Install".