D7R Track-Type Tractor Power Train Caterpillar

Illustration 1	g00445222

(1) (2) Torque for valves ... 35 ± 7 N·m (26 ± 5 lb ft)

(3) Torque for plug ... 250 ± 30 N·m (185 ± 20 lb ft)

(4) Install the recoil spring. Turn the retainer to 12.0 ± 2.0 mm (0.47 ± 0.08 inch) from the face of the roller frame. Then install the stops.

(5) 8E-2112 Spring

Length under test force ... 675 mm (26.6 inch)

Test force ... 244 ± 20 kN (55000 ± 4000 lb)

Free length after test ... 787 ± 9 mm (31.0 ± 0.4 inch)

Outside diameter ... 219 mm (8.6 inch)

100% compressed length ... 615 mm (24.2 inch)

(6) Fill the cylinder with SAE 30W oil and evacuate all the air prior to installation into the track roller frame. When the cylinder is properly bled off the cylinder should have a maximum piston movement of 3 mm (0.12 inch) under a load of 4500 kPa (650 psi).