305.5 Mini Hydraulic Excavator Machine System Specifications Main Control Valve Caterpillar


Main Control Valve
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305.5 Mini Hydraulic Excavator Machine System Specifications [RENR9433]
HYDRAULIC SYSTEM
VALVE GP-CONTROL
305.5 Mini Hydraulic Excavator Machine System Specifications Main Control Valve



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Main relief valve pressure setting

Right pump (P1) ... 24500 + 1000 - 0 kPa (3550 + 145 - 0 psi)
Left pump (P2) ... 24500 + 1000 - 0 kPa (3550 + 145 - 0 psi)
Swing pump (P3) ... 24500 + 1000 - 0 kPa (3550 + 145 - 0 psi)

Line relief valve pressure setting

Boom ... 27900 ± 1500 kPa (4050 ± 220 psi)
Stick ... 27900 ± 1500 kPa (4050 ± 220 psi)

(1) Torque for plug ... 31.4 ± 1.0 N·m (23.16 ± 0.74 lb ft)

(2) Torque for bolts ... 29.4 ± 2.0 N·m (21.68 ± 1.48 lb ft)

(3) Torque for bolt ... 9.8 ± 1.0 N·m (7.23 ± 0.74 lb ft)

(5) Torque for valve G ... 29.4 ± 2.0 N·m (21.68 ± 1.48 lb ft)

(7) Torque for plug ... 15.0 ± 1.0 N·m (11.06 ± 0.74 lb ft)

(8) Torque for plug ... 29.4 ± 1.0 N·m (21.68 ± 0.74 lb ft)

(9) Torque for valve G ... 29.4 ± 2.0 N·m (21.68 ± 1.48 lb ft)

(10) Torque for plug ... 39.2 ± 2.0 N·m (28.91 ± 1.48 lb ft)

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