LINES GP-FUEL 1660864 - Caterpillar

Illustration 1 g00103404
To prevent damage to the motor, the case must be filled with hydraulic oil at least to the fill port before operation.
Bench test the relief valve: Pressure setting ... 25500 kPa (3700 psi) Input flow rate ... 134 L/min (35 US gpm)Relief valve pressure setting in machine: ... 27450 980 kPa (4000 140 psi) (1) Torque for two relief valves ... 180 18 N m (135 13 lb ft) (2) Torque for two plugs ... 120 10 N m (89 7 lb ft) (3) 4I-7792 Spring : Free Length ... 36.0 mm (1.42 inch) Outside diameter ... 10.9 mm (.43 inch) (4) Torque for two nuts ... 160 30 N m (120 22 lb ft) (5) 4I-7790 Spring : Free Length ... 48.5 mm (1.91 inch) Outside diameter ... 22.2 mm (.87 inch) (6) Torque for four bolts ... 430 43 N m (315 32 lb ft) (7) Torque for two plugs ... 220 25 N m (160 18 lb ft) (8) 7Y-4268 Spring : Free Length ... 48.5 mm (1.91 inch) Outside diameter ... 18.7 mm (.74 inch) (9) Torque for two plugs ... 44 4.4 N m (32 3 lb ft) (10) 123-2139 Spring : Free Length ... 44.2 mm (1.74 inch) Outside diameter ... 21.0 mm (.83 inch) (11) 7Y-4255 Spring : Free Length ... 58.6 mm (2.31 inch) Outside diameter ... 57.0 mm (2.24 inch)