12H, 140H, 143H, 160H and 163H Motor Graders Power Train Caterpillar

Illustration 1	g00907146

(1) Torque for valve ... 50 ± 5 N·m (37 ± 4 lb ft)

(2) Torque for plug ... 10 ± 2 N·m (90 ± 18 lb in)

(3) Torque for adjuster ... 75 ± 7 N·m (55 ± 5 lb ft)

(4) Torque for four nuts ... 25 ± 4 N·m (18 ± 3 lb ft)

(5) Minimum torque for yellow plug ... 0.6 N·m (5 lb in)

(6) Torque for four nuts ... 20.0 ± 2.5 N·m (175 ± 22 lb in)

(7) Torque for green plugs ... 4.5 ± 1.0 N·m (40 ± 9 lb in)

(8) Torque for plug ... 14 ± 4 N·m (10 ± 3 lb ft)

Illustration 2	g00907148
Section A-A

(9) Spring (interior)

Color code ... pink

Test length ... 69.00 mm (2.717 inch)

Test force ... 34.5 ± 1.7 N (7.76 ± 0.38 lb)

Free length after test ... 84.81 mm (3.339 inch)

Outside diameter ... 15.5 mm (0.61 inch)

(10) Spring (exterior)

Color code ... pink

Test length ... 62.5 mm (2.46 inch)

Test force ... 61.56 ± 3.08 N (14.000 ± 0.692 lb)

Free length after test ... 69.46 mm (2.735 inch)

Outside diameter ... 22.00 mm (0.866 inch)

(11) Torque for adapter ... 75 ± 7 N·m (55 ± 5 lb ft)

(12) Spring

Test length ... 13.00 mm (0.512 inch)

Test force ... 32.9 ± 2.6 N (7.00 ± 0.58 lb)

Free length after test ... 50.5 mm (1.99 inch)

Outside diameter ... 24.00 mm (0.945 inch)

(13) Torque for coupler ... 4.5 ± 1.0 N·m (40 ± 9 lb in)

(14) Spacer

Thickness ... 0.25 mm (0.010 inch)

Use spacers (15) in order to achieve the following force for the plunger. ... 6.1 ± 0.6 N (1.37 ± 0.13 lb)

(15) Spring (exterior)

Quantity ... three

Color code ... three yellow stripes

Outside diameter ... 14.732 mm (0.5800 inch)

First Test

Test length ... 79.5 mm (3.13 inch)

Test force ... 93.9 ± 4.7 N (21.10 ± 1.06 lb)

Second Test

Test length ... 63.0 mm (2.48 inch)

Test force ... 282.1 ± 10.3 N (63.42 ± 2.32 lb)

Free length after tests ... 87.76 mm (3.455 inch)

(16) Spring (interior)

Quantity ... three

Color code ... two orange stripes

Test length ... 63.93 mm (2.517 inch)

Test force ... 43.37 ± 2.17 N (9.750 ± 0.489 lb)

Free length after test ... 80.442 mm (3.1670 inch)

Outside diameter ... 8.128 mm (0.3200 inch)

(17) Orifice

Equivalent diameter ... 1.00 mm (0.039 inch)

Color code ... green

(18) Shim

Outside diameter ... 15.09 ± 0.25 mm (0.594 ± 0.010 inch)

Thickness ... 0.80 mm (0.031 inch)

Pressure change of shim ... 88.4 kPa (12.83 psi)

(19) Spacer

Outside diameter ... 15.09 ± 0.25 mm (0.594 ± 0.010 inch)

Thickness ... 0.4 mm (0.02 inch)

Pressure change of spacer ... 44.2 kPa (6.41 psi)

(20) Orifice

Equivalent diameter ... 0.7 mm (0.03 inch)

Color code ... silver

(21) Spring (interior)

Color code ... yellow stripe

Test length ... 63.93 mm (2.517 inch)

Test force ... 57.8 ± 2.9 N (13.00 ± 0.65 lb)

Free length after test ... 80.44 mm (3.167 inch)

Outside diameter ... 8.128 mm (0.3200 inch)

(22) Spring (exterior)

Color code ... three light green stripes

Outside diameter ... 14.732 mm (0.5800 inch)

First Test

Test length ... 79.5 mm (3.13 inch)

Test force ... 68.0 ± 3.4 N (15.28 ± 0.76 lb)

Second Test

Test length ... 63.0 mm (2.48 inch)

Test force ... 313.8 ± 10.8 N (70.55 ± 2.43 lb)

Free length after test ... 84.07 mm (3.310 inch)

(23) Spring

Quantity ... four

Test length ... 27.50 mm (1.082 inch)

Test force ... 8.90 ± 0.44 N (2.00 ± 0.10 lb)

Free length after test ... 30.69 mm (1.208 inch)

Outside diameter ... 7.50 mm (0.295 inch)

(24) Spring

Quantity ... four

Test length ... 20.5 mm (0.80 inch)

Test force ... 27.8 ± 1.4 N (6.25 ± 0.31 lb)

Free length after test ... 43.20 mm (1.700 inch)

Outside diameter ... 27.40 mm (1.078 inch)

(A) Compressed length for plunger assembly ... 94.50 ± 0.25 mm (3.720 ± 0.010 inch)