HEATER-JACKET WATER 3920478 - Caterpillar

Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 439-3938 Link Bracket 2
B 1P-2420 Transmission Repair Stand 1
FT-0996 Positioning Gp (Axle Repair) 4
FT-0957 Positioning Gp (Axle Repair) 4
C - Loctite 5188 1
D - Loctite 243 1
Thoroughly clean the parts of the service brakes.Note: When brake service is required, replace both friction discs. Replace all piston seals and all retraction springs. Inspect all surfaces for wear. Replace components, as required.
Illustration 1 g06047958
Apply Tooling (D) to outer diameter of dowel (7). Install dowel (7). Seat dowel (7) in the bottom of the bore.
Lubricate O-ring seal (8) and pin (9) with the lubricant that is being sealed. Install O-ring seal (8) and install pin (9).
Install plug (18) and bolt (19). Tighten bolt (19) to a torque of 0.45 0.05 N m (3.983 0.443 lb in).
Illustration 2 g00451327
Illustration 3 g06047877
Cutaway view of differential housing to show seals orientation.
Personal injury can result from being struck by parts propelled by a released spring force.Make sure to wear all necessary protective equipment.Follow the recommended procedure and use all recommended tooling to release the spring force.
If necessary, install dowels (6) and (12). Seat the dowels in the bottom of the bores.
Install seal (16) and (17). Ensure that the seals (16) and (17) are installed in the orientation that was noted during removal.Note: Install piston (15) evenly. Twisting or binding of the piston may cause seal damage.
Install piston (15) in the differential housing assembly.Note: Using a friction disc with less than 3.95 mm (0.156 inch) of friction material will result in accelerated wear. Do not use the color of the friction disc as an indication of wear. The overall thickness and disc groove depth are better indications of wear.
Inspect friction disc (13) for wear. Replace the friction disc if the thickness of the friction material is less than 3.95 mm (0.156 inch). Immerse the friction discs in clean SAE 30 oil. Install friction disc (13), reaction plate (14), and friction disc (13).
Install cup (11) and spring (10).
Install two springs (5).
Install reaction plate (4).
Illustration 4 g00451323
Install sun gear (3).
Illustration 5 g00451163
Apply Tooling (C) on the mating surfaces of the axle housing and differential housing.
Attach Tooling (A) and a suitable lifting device to the rim of the axle shaft. Carefully install the axle housing assembly. The weight of axle housing assembly (2) is approximately 365 kg (800 lb).
Illustration 6 g00450664
Install bolts (1) that secure axle housing assembly (2) to the differential housing. The torque for bolts (1) is 300 40 N m (220 30 lb ft).Note: If you install new service brakes, record the new dimension for the service brake wear indicator.
Record the new dimension for the service brake wear indicator.
Repeat Steps 1 through 16 for the remaining service brake.End By:
Install the fixed axle.
Install the oscillating axle.