539 Knuckleboom Loader Hydraulic System Caterpillar


Relief Valve (Pilot)

Usage:

539 1PZ



Illustration 1g00671737

Pressure setting of the relief valve ... 2400 ± 150 kPa (350 ± 20 psi)

Oil flow of the relief valve ... 35 L/min (9 US gpm)

Oil temperature for the relief valve test ... 49 °C (120 °F)

(1) Torque for installing the relief valve ... 70 N·m (50 lb ft)

(2) Torque for the locknut ... 10 N·m (7 lb ft)

Caterpillar Information System:

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