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

Track Roller

Usage:

Specifications

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Illustration 1	g02769839

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Table 1
Specifications for 301-0652 Single Flange Track Roller Gp
Item	Qty	Part	Specification Description
1	2	6S-3285 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"
2	2	6S-7715 Thrust Washer	Install the thrust washer with the groove facing the roller.
3	2	7D-9749 O-Ring Seal	Lubricate the bore lightly with the lubricant that is being sealed.

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Illustration 2	g02769896

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Table 2
Specifications for 301-0650 Double Flange Track Roller
Item	Qty	Part	Specification Description
1	2	6S-3285 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"
2	2	6S-7715 Thrust Washer	Install the thrust washer with the groove facing the roller.
3	2	7D-9749 O-Ring Seal	Lubricate the bore lightly with the lubricant that is being sealed.

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Illustration 3	g02769856

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Table 3
Specifications for 124-8237 Single Flange Track Roller Gp
Item	Qty	Part	Specification Description
1	2	7F-8267 O-Ring Seal	Lubricate the bore of the O-ring seal lightly with the lubricant that is being sealed.
2	2	1H-8128 O-Ring Seal	Lubricate O-ring seal and surface (A) of two bushings (3) during assembly.
4	2	365-7852 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"
-	-	-	End play for the track roller shaft is: Minimum is 0.25 mm (0.010 inch). Maximum is 1.23 mm (0.048 inch).
B	-	-	The clear plug must not be recessed below the surface of the stopper assembly. Install the clear plug so that the end is even with the stopper assembly. The clear plug can extend up to 0 to 5 mm (0.0 to 0.2 inch) out of the stopper assembly.

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Illustration 4	g02767818

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Table 4
Specifications for 124-8240 Double Flange Track Roller
Item	Qty	Part	Specification Description
1	2	7F-8267 O-Ring Seal	Lubricate the bore of the O-ring seal lightly with the lubricant that is being sealed.
2	2	1H-8128 O-Ring Seal	Lubricate O-ring seal and surface (A) of two bushings (3) during assembly.
4	2	365-7852 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"
-	-	-	End play for the track roller shaft is: Minimum is 0.25 mm (0.010 inch). Maximum is 1.23 mm (0.048 inch).
B	-	-	The clear plug must not be recessed below the surface of the stopper assembly. Install the clear plug so that the end is even with the stopper assembly. The clear plug can extend up to 0 to 5 mm (0.0 to 0.2 inch) out of the stopper assembly.

Table 5
Required Tools
Tool	Part Number	Part Description	Qty
A	277-7200	Electric Hydraulic Pump Gp	1
8S-7610	Base As	2
8S-7615	Pin	2
8S-7650	Cylinder As	2
B	1U-7498	Support Stand As	2
C	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.
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Illustration 11 g01360774
Use two people to remove track roller guard (3). The weight of track roller guard (3) is approximately 27 kg (60 lb).
Repeat Step 5 for the inside track roller guard.
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Illustration 12 g01410722
Remove track guide guard (4).
Repeat Step 7 for the inside track guide guard.
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Illustration 13 g01360799
Attach a suitable lifting device to Tooling (C). Position Tooling (C ) under track roller assembly (5). The weight of track roller assembly (5) is approximately 36 kg (80 lb).
Remove bolts (6). Use Tooling (C) to remove track roller assembly (5).
If necessary, repeat Steps 9 and 10 for remaining track roller assemblies (5).

Installation Procedure

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Table 6
Required Tools
Tool	Part Number	Part Description	Qty
A	4277-7200	Electric Hydraulic Pump Gp	1
	8S-7610	Base As	2
	8S-7615	Pin	2
	8S-7650	Cylinder As	2
B	1U-7498	Support Stand As	2
C	183-4795	Roller Lifting Fork	1

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Illustration 14	g03683862
(A) 1476.7 mm (58.14 inch) (B) 1387.8 mm (54.64 inch) (C) 1243.0 mm (48.94 inch) (D) 1154.1 mm (45.44 inch) (E) 1009.3 mm (39.74 inch) (F) 972.3 mm (38.28 inch) (G) 920.4 mm (36.24 inch) (H) 883.4 mm (34.78 inch) (J) 775.6 mm (30.53 inch) (K) 738.3 mm (29.07 inch) (L) 686.7 mm (27.03 inch) (M) 649.4 mm (25.57 inch) (N) 541.9 mm (21.33 inch) (P) 503.8 mm (19.83 inch) (R) 453.0 mm (17.83 inch) (S) 414.9 mm (16.33 inch) (T) 233.8 mm (9.20 inch) (U) 144.9 mm (5.70 inch) (V) 88.9 mm (3.50 inch)

Mounting location for bottom rollers on the SystemOne undercarriage for D5K / D5K2 machines are Roller locations 1, 2, 3, 4, 5, 6, and 7. Refer to Illustration 14.

Mounting location for bottom rollers on the SALT undercarriage for D5K / D5K2 machines are Roller locations 1,2, 3A, 4A, 5A, 6, and 7. Refer to Illustration 14.

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Illustration 15	g03683960
(A) 1452.9 mm (57.20 inch) (B) 1364 mm (53.7 inch) (C) 1231.2 mm (48.47 inch) (D) 1195.2 mm (47.05 inch) (E) 1142.3 mm (44.97 inch) (F) 1106.3 mm (43.55 inch) (G) 953.2 mm (37.53 inch) (H) 910.2 mm (35.83 inch) (J) 864.3 mm (34.03 inch) (K) 821.3 mm (32.33 inch) (L) 613.2 mm (24.14 inch) (M) 524.3 mm (20.64 inch) (N) 288.7 mm (11.37 inch) (P) 199.3 mm (7.85 inch) (R) 88.9 mm (3.50 inch)

Mounting location for bottom rollers on the SystemOne undercarriage for D3K2 machines are Roller locations 1, 2, 3, 4, 5, and 6. Refer to Illustration 15.

Mounting location for bottom roller on the SALT undercarriage for D3K2 machines are Roller locations 1,2A, 3A, 4, 5, and 6. Refer to Illustration 15.

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Illustration 16	g01360799

Use Tooling (C) and a suitable lifting device to position track roller assembly (5). The weight of track roller assembly (5) is approximately 36 kg (80 lb).
Install bolts (6).
Note: Refer to Table 7 for torque specifications for bolts (6).
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Table 7
BOLT SIZE TORQUE SPECIFICATION

M12 120 ± 20 N·m (89 ± 15 lb ft)

M16 270 ± 40 N·m (199 ± 30 lb ft)
If necessary, repeat Steps 1 and 2 for remaining track rollers (5).
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Illustration 17 g01410722
Install track guide guard (4).
Repeat Step 4 for the inside track guide guard.
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Illustration 18 g01360774
Use two people to install track roller guard (3). The weight of track roller guard (3) is approximately 27 kg (60 lb).
Repeat Step 6 for the inside track roller guard.
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Illustration 19 g01360714

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Illustration 20 g01360724
Use Tooling (A) in order to raise the machine. Remove Tooling (B). Lower the machine with Tooling (A). Remove Tooling (A).
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Illustration 21 g02725330
Turn relief valve (2) clockwise in order to close relief valve (2).
Adjust the track assembly.
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Illustration 22 g01360245
Install access cover (1).