D4H, D4H SERIES II, AND D4H SERIES III TRACTORS POWER TRAIN Caterpillar


Steering Clutch And Brake Control Valve

Usage:

(1) 7T1112 Spring: (outer)

Quantity ... 4

Length under test force ... 72.1 mm (2.84 in)

Test force ... 169 ± 8 N (38 ± 1.8 lb)

Free length after test ... 105.4 mm (4.15 in)

Outside diameter ... 20.62 mm (.812 in)

(2) 7T1113 Spring: (inner)

Quantity ... 4

Length under test force ... 72.1 mm (2.84 in)

Test force ... 39.2 ± 2 N (8.81 ± .4 lb)

Free length after test ... 122.9 mm (4.84 in)

Outside diameter ... 14.27 mm (.562 in)

(3) 5M9622 Spacer:

Thickness of one spacer ... 1.60 mm (.063 in)

Outside diameter ... 20.62 ± 0.25 mm (.812 ± .010 in)

One spacer will change pressure approximately ... 122 kPa (17.7 psi)

5M9623 Spacer:

Thickness of one spacer ... 0.90 mm (.035 in)

Outside diameter ... 20.62 ± 0.25 mm (.812 ± .010 in)

One spacer will change pressure approximately ... 71 kPa (10.3 psi)

5M9624 Spacer:

Thickness of one spacer ... 0.25 mm (.010 in)

Outside diameter ... 20.62 ± 0.25 mm (.812 ± .010 in)

One spacer will change pressure approximately ... 19.3 kPa (2.80 psi)

(4) 4M2381 Spring:

Quantity ... 4

Length under test force ... 12.2 mm (.48 in)

Test force ... 2.30 ± 0.18 N (.517 ± .041 lb)

Free length after test ... 22.6 mm (.89 in)

Outside diameter ... 7.62 mm (.300 in)

(5) 3P3202 Spring: (outer)

Quantity ... 2

Length under test force ... 34.8 mm (1.37 in)

Test force ... 43.2 ± 2.2 N (9.72 ± .49 lb)

Free length after test ... 106.17 mm (4.180 in)

Outside diameter ... 26.97 mm (1.062 in)

(6) 7T1118 Spring: (earlier)

Quantity ... 2

Length under test force ... 52.32 mm (2.060 in)

Test force ... 172 ± 9 N (38.7 ± 2.0 lb)

Free length after test ... 59.2 mm (2.33 in)

Outside diameter ... 15.88 mm (.625 in)

6Y6562 Spring: (later)

Quantity ... 2

First test:

Length under test force ... 52.3 mm (2.060 in)

Test force ... 172.1 ± 8.6 N (38.69 ± 1.93 lb)

Second test:

Length under test force ... 48.5 mm (1.91 in)

Test force ... 278.8 ± 13.9 N (62.73 ± 3.13 lb)

Free length after test ... 58.46 mm (2.302 in)

Outside diameter ... 16.51 mm (.650 in)

(7) 7G3046 Spacer:

Thickness of one spacer ... 0.25 mm (.010 in)

Outside diameter ... 17.50 ± 0.25 mm (.689 ± .010 in)

7G3177 Spacer:

Thickness of one spacer ... 0.80 mm (.031 in)

Outside diameter ... 17.50 ± 0.25 mm (.689 ± .010 in)

Use spacers as required to obtain a clearance between spring (6) and spacers (7) of ... 0.50 ± 0.13 mm (.020 ± .005 in)

(8) 7T7970 Spring: (inner with yellow stripe)

Quantity ... 2

Length under test force ... 49.0 mm (1.93 in)

Test Force ... 191.3 ± 9.6 N (43.00 ± 2.16 lb)

Free length after test ... 59.9 mm (2.36 in)

Outside diameter ... 15.88 mm (.625 in)

(9) 7G3046 Spacer:

Thickness of one spacer ... 0.25 mm (.010 in)

Outside diameter ... 17.50 ± 0.25 mm (.689 ± .010 in)

One spacer will change pressure approximately ... 38 kPa (5.5 psi)

7G3177 Spacer:

Thickness of one spacer ... 0.80 mm (.031 in)

Outside diameter ... 17.50 ± 0.25 mm (.689 ± .010 in)

One spacer will change pressure approximately ... 117 kPa (17.0 psi)

3T6822 Spacer:

Thickness of one spacer ... 1.8 mm (.07 in)

Outside diameter ... 17.50 ± 0.25 mm (.689 ± .010 in)

One spacer will change pressure approximately ... 267 kPa (38.7 psi)


SECTION A-A

(10) 4J6555 Spring:

Length under test force ... 28.4 mm (1.12 in)

Test force ... 5.1 ± 0.4 N (1.14 ± .10 lb)

Free length after test ... 35.1 mm (1.38 in)

Outside diameter ... 8.6 mm (.34 in)


SECTION B-B

Adjustment Procedure for Clutch Levers and Spring Assemblies

NOTE: This adjustment should be made before any system pressures are adjusted.

1. Remove cover (12), and loosen bolt (16).

2. Move clutch lever (14) until roller (11) is in contact with, but not depressing plunger (13).

3. Move spring assembly (15) until the pin of the spring assembly is in the front detent of the clutch lever (as shown in the illustration).

4. Tighten bolt (16).

5. Do Steps 2 through 4 for the other clutch lever.

6. Install cover (12).

Caterpillar Information System:

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