572R Pipelayer Power Train Caterpillar

Final Drive Planetary Carrier (In Chassis) - Remove

Usage:

572R 2HZ

Removal Procedure

Show/hide table

Table 1
Required Tools
Tool	Part Number	Part Description	Qty
A	8T-3045	Adapter	1
B	1P-0068	Cone	1
	1P-0069	Head	1
	1P-0071	Jaw	3
	L-0732	Stud	1
	1A-8285	Nut	3
	6H-0187	Bolt	3
	1P-5546	Block	1
	5P-8247	Washer	1
	1B-4206	Nut	1
C	3B-2968	Bolts 3/4 inch - 10 × 3 1/2 inch long	3
D	5 p-8622	Shackle	1
	8T-3207	Lifting Bracket	1
	1A-8063	Bolts 3/4 inch - 10 × 2 1/2 inch long	2
	5P-8248	Washer	6
	1B-4331	Nut	2
E	6V-3160	Cylinder	1
E	6V-9061	Pump	1
F	1P-1837	Step Plate	2
G	1P-0520	Driver Group	1

Start By:

Remove the counterweight on the right side of the machine. Refer to Disassembly and Assembly, "Counterweight - Remove and Install" for the machine that is being serviced.

Show/hide table




Illustration 1	g00503557

Position the final drive drain plug (2) on the bottom of the final drive, as shown. Remove drain plug (2), and drain the oil from the final drive. Approximately 11.4 L (3 US gal) of oil will drain out.

Remove the three bolts and cover (1) from the final drive. Remove the O-ring seal from cover (1) .

Show/hide table




Illustration 2	g00503558

Remove the retainer from the final drive sun gear.

Use Tooling (A), and remove the outer axle.

Show/hide table




Illustration 3	g00503559

Show/hide table




Illustration 4	g00503561
Tooling (B) is installed on the Inner Sun Gear.

Show/hide table

NOTICE

This f inal drive contains two sun gears. The inner sun gear must be held in place with Tooling (B). This will prevent the inner sun gear from falling out of the final drive when the planetary carriers are removed. Steps 5 and 6 are done in order to hold the inner sun gear in place.

Install Tooling (B) in order to hold inner sun gear (6) in place.

Show/hide table

NOTICE

Three bolts [Tooling (C) ] must be threaded in 25 mm (1 inch) in order to hold the planetary carrier.

Remove three equally spaced bolts that hold planetary carrier (4) to hub (5). Install Tooling (C) in the place of the three bolts, as shown.

Remove the remaining 26 bolts (3) that hold the planetary carrier to the hub.

Show/hide table




Illustration 5	g00503562

Adjust the upper bracket on Tooling (D) so that distance (X) is 203 mm (8 inch). Install lower plate (7). Install the lower plate so that the spacers are upward and so that the spacers are toward the leg of the bracket.

Show/hide table




Illustration 6	g00503603

Use a pry bar, and move planetary carrier (4) out of the hub. Pry out on the planetary carrier until the movement is stopped by Tooling (C) .

Fasten a hoist, and install Tooling (D) on the planetary carrier, as shown.

The weight of the planetary carrier is 250 kg (550 lb). Remove Tooling (C), and remove plate carrier (4) from the hub.

Show/hide table

Personal injury or death can result from not following the proper procedures.

To avoid the possibility of injury or death, follow the established procedure.

Show/hide table

NOTICE

Sun Gear (6) will be free to fall when Tooling (B) is removed. In order to prevent possible personal injury, it is necessary to support the sun gear as Tooling (B) is removed.

Hold sun gear (6), and remove Tooling (B) from the planetary carrier.

In order to disassemble the planetary carriers, see the Disassembly And Assembly, "Final Drive Diasssemble" procedure in this module.

Show/hide table




Illustration 7	g00503605

Show/hide table




Illustration 8	g00503606

Show/hide table

Personal injury or death can result from not following the proper procedures.

To avoid the possibility of injury or death, follow the established procedure.

Show/hide table

NOTICE

Ring Gear (8) will be free to fall when retainer (9) is removed. In order to prevent possible personal injury, Tooling (E) and Tooling (F) must be in position to hold ring gear (8) and the hub in postion when you remove retainer (9) .

Place Tooling (E) under final drive hub (5) in order to hold the hub in position when you remove retainer (9). Install Tooling (F) in order to hold ring gear (8) in position. Use the bolts that hold the planetary carriers in position to install Tooling (F) .