D6R Series II Track-Type Tractor Hydraulic System Caterpillar

Illustration 1	g01209309

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

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

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

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

(5) As required, use shims to obtain the following gap between the spacer and the retainer: ... 1.2 mm (0.047 inch)

(6) 153-6976 Spring (Outer)

Length under test force ... 54 mm (2.13 inch)

Test force ... 0 N (0 lb)

Free length after test ... 54 mm (2.13 inch)

Outside diameter ... 39 mm (1.54 inch)

(7) 4T-4631 Spring (Inner)

Length under test force ... 40 mm (1.58 inch)

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

Free length after test ... 51.8 mm (2.039 inch)

Outside diameter ... 24.8 mm (0.976 inch)

(8) Torque for locknut ... 50 ± 7 N·m (37 ± 5 lb ft)

(9) Lubricate the seals with the lubricant that is being sealed. Torque for two check valves ... 145 ± 15 N·m (105 ± 10 lb ft)

Pressure setting ... 26900 ± 300 kPa (3900 ± 45 psi)

Flow rate for test ... 20 ± 2 L/min (5.25 ± 0.5 US gpm)

(10) 6E-3518 Spring

Length under test force ... 39 mm (1.50 inch)

Test force ... 107 ± 5 N (24 ± 1 lb)

Free length after test ... 42.86 mm (1.69 inch)

Outside diameter ... 12 mm (0.47 inch)

(11) 4T-0935 Spring

Length under test force ... 21 mm (0.83 inch)

Test force ... 14 ± 1.1 N (3.15 ± 0.25 lb)

Free length after test ... 33 mm (1.3 inch)

Outside diameter ... 12 mm (0.47 inch)

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

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

(14) Torque for nut ... 35 ± 5 N·m (26 ± 4 lb ft)

(15) 4T-1700 Spring

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

Test force ... 53.3 ± 4.3 N (12.0 ± 1.0 lb)

Free length after test ... 38.25 mm (1.506 inch)

Outside diameter ... 7.94 mm (0.313 inch)

(16) 121-6649 Relief Valve

Pressure setting ... 19300 ± 300 kPa (2800 ± 45 psi)

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

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

(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) 2S-2596 Spring

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)

(20) Torque for valve body ... 300 ± 40 N·m (220 ± 30 lb ft)