D3K2, D4K2 and D5K2 Track-Type Tractors Power Train Caterpillar

Track Carrier Roller

Usage:

Specifications

Show/hide table




Illustration 1	g02767619

Show/hide table

Table 1
Specification for 6S-3609 Track Carrier Roller
Item	Qty	Part	Specification Description
1	1	1H-9696 O-Ring Seal	Lubricate the bore lightly with the lubricant that is being sealed.
2	1	9W-5224 Duo-Cone Seal Gp	The rubber toric seals and all the contacting surfaces must be clean and dry at assembly. Before assembly, apply a thin layer of oil to the contacting surfaces of the metal seal rings. The seal rings must be assembled square. The rubber toric seal should not bulge and the rubber toric seal should not twist. Refer to Special Instruction, SEHS8364, "Assembly and Installation of Conventional Duo-Cone Seals"
3	1	6K-9860 Retainer Plate	Assemble the face of the plate that is ground to the end of the shaft and bearing.
4	2	6V-4791 Bolt	Torque to 47 ± 9 N·m (35 ± 7 lb ft)
5	5	0L-1351 Bolt	Torque to 47 ± 9 N·m (35 ± 7 lb ft)

Show/hide table




Illustration 2	g02782817

Show/hide table

Table 2
Specifications for 225-7650 Track Carrier Roller (SystemOne)
Item	Qty	Part	Specification Description
1	1	217-6359 Collar	Lubricate the bore lightly with lubricant that is being sealed.
2	1	9W-5224 Duo-Cone Seal Gp	The rubber toric seals and all the contacting surfaces must be clean and dry at assembly. Before assembly, apply a thin layer of oil to the contacting surfaces of the metal seal rings. The seal rings must be assembled square. The rubber toric seal should not bulge and the rubber toric seal should not twist. Refer to Special Instruction, SEHS8364, "Assembly and Installation of Conventional Duo-Cone Seals"
3	1	8P-6188 Retainer Plate	Assemble the face of the plate that is ground to the end of the shaft and bearing.
4	1	357-1634 Cover	Apply green Loctite 609 to the mating surface between cover and the roller assembly.
5	1	227-1163 Shaft	Prior to assembly length (A) must be free of paint. Length (A) is 78.0 mm (3.07 inch).
6	1	7H-3171 Pipe Plug	Apply blue Loctite 242 to the threads before assembly.
B	-	-	Distance from the collar face to end of the shaft is 86.21 ± 0.13 mm (3.394 ± 0.005 inch)

Show/hide table




Illustration 3	g02766997

Show/hide table

Table 3
Specifications for 227-5971 Track Carrier Roller (SystemOne)
Item	Qty	Part	Specification Description
1	1	217-6359 Collar	Lubricate the bore lightly with the lubricant that is being sealed.
2	1	9W-5224 Duo-Cone Seal Gp	The rubber toric seals and all the contacting surfaces must be clean and dry at assembly. Before assembly, apply a thin layer of oil to the contacting surfaces of the metal seal rings. The seal rings must be assembled square. The rubber toric seal should not bulge and the rubber toric seal should not twist. Refer to Special Instruction, SEHS8364, "Assembly and Installation of Conventional Duo-Cone Seals"
3	1	8P-6188 Retainer Plate	Assemble the face of the plate that is ground to the end of the shaft and bearing.
4	1	357-1634 Cover	Apply green Loctite 609 on the mating surface between cover and roller assembly.
5	1	7H-3171 Pipe Plug	Apply blue Loctite 242 to the threads before assembly.
6	1	227-1163 Shaft	Prior to assembly length (A) must be free of paint. Length (A) is 78.0 mm (3.07 inch) minimum.
B	-	-	Distance from the collar face to the end of shaft is 86.05 ± 0.13 mm (3.388 ± 0.005 inch)

Show/hide table




Illustration 4	g02782697

Show/hide table

Table 4
Specification for 6K-9880 Track Carrier Roller (Salt)
Item	Qty	Part	Specification Description
1	1	1H-9696 O-Ring Seal	Lubricate the bore lightly with the lubricant that is being sealed
2	1	9W-5224 Duo-Cone Seal Gp	The rubber toric seals and all the contacting surfaces must be clean and dry at assembly. Before assembly, apply a thin layer of oil to the contacting surfaces of the metal seal rings. The seal rings must be assembled square. The rubber toric seal should not bulge and the rubber toric seal should not twist. Refer to Special Instruction, SEHS8364, "Assembly and Installation of Conventional Duo-Cone Seals"
3	1	6K-9860 Retainer Plate	Assemble the face of the plate that is ground to the end of the shaft and bearing.
4	3	0L-1351 Bolt	Torque to 47 ± 9 N·m (35 ± 7 lb ft).
5	1	5H-8848 O-Ring Seal	Lubricate the bore lightly with the lubricant that is being sealed
6	2	6V-4791 Bolt	Torque to 47 ± 9 N·m (35 ± 7 lb ft).
7	1	2P-0347 Plug	Torque to 75 ± 7 N·m (55 ± 5 lb ft)
8	1	6K-9861 Roller Shaft	Install the carrier roller so that the shaft is flush with the back of the bracket. An adjustment may be necessary for track alignment.

Table 5
Required Tools
Tool	Part Number	Part Description	Qty
A	8T-5255	Hydraulic Jack	1
B	183-4795	Roller Lifting Fork	1

Personal injury or death can result from grease under pressure.
Grease coming out of the relief valve under pressure can penetrate the body causing injury or death.
Do not watch the relief valve to see if grease is escaping. Watch the track or track adjustment cylinder to see if the track is being loosened.
Loosen the relief valve one turn only.

If track does not loosen, close the relief valve and contact your Caterpillar dealer.

Turn relief valve (2) counterclockwise in order to open relief valve (2). This will loosen the track assembly.
Show/hide table

Illustration 7 g01360266
Use Tooling (A) to raise the track assembly. Use suitable blocking in order to support the track assembly. Remove Tooling (A).
Show/hide table

Illustration 8 g02923117
Loosen bolts (3).
Show/hide table

Illustration 9 g02923121
Attach a suitable lifting device to Tooling (B). Position Tooling (B) under track carrier roller (4). The weight of the track carrier roller (4) is approximately 25 kg (55 lb).
Use Tooling (B) in order to remove track carrier roller (4).

Installation Procedure

Show/hide table

Table 6
Required Tools
Tool	Part Number	Part Description	Qty
A	8T-5255	Hydraulic Jack	1
B	183-4795	Roller Lifting Fork	1

Note: Cleanliness is an important factor. Before you begin the installation procedure, the exterior of the components should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.

Show/hide table




Illustration 10	g03683880

For D5K2 machines with two carrier roller mounting locations, use REAR four mounting holes to locate the track carrier roller (X) on the SystemOne undercarriage. Refer to Illustration 10

Show/hide table




Illustration 11	g03683883

For D5K2 machines with two carrier roller mounting locations, use FORWARD four mounting holes to locate the track carrier roller (X) on the SALT undercarriage. Refer to Illustration 11.

Show/hide table




Illustration 12	g02923121

Attach a suitable lifting device to Tooling (B). Position Tooling (B) under track carrier roller (4). The weight of the track carrier roller (4) is approximately 25 kg (55 lb).
Use Tooling (B) in order to install track carrier roller (4). Center track carrier roller (4) between the rails.
Remove Tooling (B).
Show/hide table

Illustration 13 g02922641

Show/hide table

Illustration 14 g03743317
Use the following measurements in order to position the track carrier roller properly:
1. Dimension (X) should measure 75.1 mm (2.96 inch).
2. Dimension (Y) should measure 140.9 mm (5.55 inch) for the D3K and D4K SALT.
3. Dimension (Y) should measure 161.2 mm (6.35 inch) for the D5K Systemone.
4. Dimension (Y) should measure 166.2 mm (6.54 inch) for the D5K SALT.
Show/hide table

Illustration 15 g02923117
Tighten bolts (3).
Show/hide table

Illustration 16 g01360266
Raise the track assembly with Tooling (A). Remove suitable blocking. Remove Tooling (A).
Show/hide table

Illustration 17 g02725330
Turn relief valve (2) clockwise in order to close relief valve (2).
Adjust the track assembly. Refer to Operation and Maintenance Manual, "Track -Check/Adjust".
Show/hide table

Illustration 18 g01360245
Install access cover (1).