525B and 535B Wheel Skidders Power Train Caterpillar

Torque Converter from Transmission - Separate

Usage:

525B 3KZ

Separation Procedure

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Table 1
Required Tools
Tool	Part Number	Part Description	Qty
A	138-7574	Link Bracket	2
A	6V-6146	Load Leveler	1
B	1U-5750	Repair Stand	1
B	9U-5161	Adapter Plate	1
C	138-7573	Link Bracket	3

Start By:

Remove the torque converter and the transmission from the machine. Refer to Disassembly and Assembly, "Torque Converter and Transmission - Remove" for the machine that is being serviced.

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NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids. Refer to Special Publication, NENG2500, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products. Dispose of all fluids according to local regulations and mandates.

Note: Put identification marks on all lines, on all hoses, on all wires, and on all tubes for installation purposes. Plug all lines, hoses, and tubes. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.

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Illustration 1	g00589496

Install Tooling (A) to transmission (1). Attach a hoist and suitable lifting chains to Tooling (A).
Use Tooling (A) to attach transmission (1) to Tooling (B). The weight of the transmission and the torque converter as a unit is 815 kg (1800 lb).
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Illustration 2 g00589498
Attach a hoist and a suitable lifting sling around piston pump (2).
Remove four bolts (3) and the washers.
Use the hoist to carefully remove piston pump (2) and the gear pump for the winch. The combined weight of the piston pump and the gear pump is 59 kg (130 lb).
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Illustration 3 g00589499
Remove two socket head bolts (5).
Remove transmission oil pump (4).
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Illustration 4 g00589500
Remove pump drive housing (6).
Reference: Disassembly and Assembly, "Transmission Pump Drive Housing - Remove"
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Illustration 5 g00589501
Use Tooling (B) to rotate transmission (1) to the side.
Remove bolt (8) and retainer (9).
Remove yoke (7).
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Illustration 6 g00589502
Cut cable tie (12) and disconnect wire (10).
Disconnect tube (11).
Disconnect wire connector (13).
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Illustration 7 g00589504
Install Tooling (C) to cover (14). Attach a hoist and suitable lifting slings to Tooling (C).
Remove 25 bolts (15).
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Illustration 8 g00589505
Use three forcing screws (16) to loosen cover (14) from transmission (1).
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Illustration 9 g00589506
Use the hoist to carefully separate cover (14) from transmission (1). The weight of the torque converter and the cover as a unit is 210 kg (465 lb).