422E, 428E, 432E, 434E, 442E and 444E Backhoe Loaders Hydraulic and Steering System Caterpillar

Illustration 1	g01626773

(1) Torque for the relief valve group ... 27 ± 3 N·m (20 ± 2 lb ft)

(2) Needle valve

Setting for the needle valve at relief pressure ... 30 L/min (7.9 US gpm)

Torque for the needle valve ... 33.9 ± 3.0 N·m (25 ± 2 lb ft)

(5) 249-7160 Solenoid Valve Gp

Final installation torque for the solenoid valve group ... 30 ± 3 N·m (22 ± 2 lb ft)

Final installation torque for the nut (3) ... 5.8 ± 1.0 N·m (50 ± 9 lb in)

Operating voltage ... 12 VDC

Coil resistance at 25 ± 5 °C (77 ± 9 °F) ... 10.3 ± 0.6 Ohms

(6) 273-3525 Solenoid Valve Gp

Final installation torque for the solenoid valve group ... 47.6 ± 2.7 N·m (35 ± 2 lb ft)

Final installation torque for the nut (4) ... 6.1 ± 0.7 N·m (55 ± 6 lb in)

Operating voltage ... 12 VDC

Coil resistance at 20 °C (68 °F) ... 7.3 Ohms