527 Track-Type Skidder Hydraulic System Caterpillar

Pilot Valve

Illustration 1	g00447003

(1) Torque for bolts ... 35 N·m (26 lb ft)

(2) Torque for nut ... 65 N·m (48 lb ft)

(3) Torque for bolt ... 20 N·m (15 lb ft)

(4) Torque for capsule assemblies ... 45 N·m (33 lb ft)

Pilot Accumulator

Illustration 2	g01108237
(5) Accumulator

Charging medium ... Dry Nitrogen

Capacity of gas ... 492 cc (30 in³)

Charge pressure at 21.1 °C (70 °F) ... 690 ± 69 kPa (100 ± 10 psi)

Maximum operating pressure at 85 °C (185 °F) ... 3450 kPa (500 psi)

Minimum bursting pressure ... 55158 kPa (8000 psi)