D7R Series II Track-Type Tractor Hydraulic System Caterpillar

Illustration 1	g00584853

(1) Torque for bolt on the valve spool ... 20 ± 3 N·m (180 ± 24 lb in)

(2) Torque for two bolts ... 20 ± 3 N·m (180 ± 24 lb in)

(3) Use shims to obtain the following gap between the shims and the retainer: ... 0.1 mm (0.004 inch)

(4) 170-4001 Spring (Outer)

Length under test force ... 58 mm (2.28 inch)

Test force ... 130 N (29 lb)

Free length after test ... 60 mm (2.36 inch)

Outside diameter ... 37.98 mm (1.50 inch)

(5) Torque for plug ... 145 ± 15 N·m (107 ± 11 lb ft)

(6) Torque for plug ... 10 ± 2 N·m (90 ± 20 lb in)

(7) Torque for shuttle valve ... 32 ± 5 N·m (24 ± 4 lb ft)

(8) 2S-2596 Spring

Quantity ... 2

Length under test force ... 7.9 mm (0.31 inch)

Test force ... 4.23 ± 0.34 N (0.950 ± 0.076 lb)

Free length after test ... 33.3 mm (1.31 inch)

Outside diameter ... 8.43 mm (0.332 inch)

(9) Torque for body ... 145 ± 15 N·m (105 ± 10 lb ft)

(10) 153-7553 Spring

Length under test force ... 22 mm (0.87 inch)

Test force ... 290 ± 30 N (65 ± 7 lb)

Free length after test ... 27.0 mm (1.06 inch)

Outside diameter ... 38.5 mm (1.52 inch)

(11) Torque for two bolts ... 20 ± 3 N·m (15 ± 2 lb ft)

(12) Torque for two bolts ... 60 ± 7 N·m (44 ± 5 lb ft)

(13) Torque for nut ... 50 ± 7 N·m (37 ± 5 lb ft)

(14) 121-6647 Relief Valve

Pressure setting ... 22750 ± 300 kPa (3300 ± 45 psi)

Flow rate for test ... 5.0 ± 0.5 L/min (1.32 ± 0.13 US gpm)

(15) 125-1393 Spring

Length under test force ... 35 mm (1.378 inch)

Test force ... 80.0 ± 6.4 N (18.0 ± 1.4 lb)

Free length after test ... 40.25 mm (1.585 inch)

Outside diameter ... 7.94 mm (0.313 inch)

(16) Torque for valve seat ... 22 ± 2 N·m (16 ± 1.5 lb ft)

(17) Use shims, as required.

(18) 123-9624 Spring

Length under test force ... 57 mm (2.244 inch)

Test force ... 145.5 ± 7.3 N (32.7 ± 1.6 lb)

Free length after test ... 64.7 mm (2.547 inch)

Outside diameter ... 19.5 mm (0.768 inch)

(19) Torque for plug ... 300 ± 40 N·m (221 ± 30 lb ft)

(20) 164-0938 Spring (Inner)

Length under test force ... 45 mm (1.77 inch)

Test force ... 67.6 ± 5.4 N (15.2 ± 1.2 lb)

Free length after test ... 56.8 mm (2.24 inch)

Outside diameter ... 24.8 mm (0.976 inch)