Lull 944E-42 Service Manual User Manual download pdf (Page 36)

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101

General Information, Specifications and Maintenance

2.20

Model 644E-42/944E-42 Rev. 6/04

2.5.11 Hydraulic System

Hydraulic System: 644E-42 and 944E-42

System Capacity 50.2 gal (190 liters)

Reservoir Capacity 33.5 gal (127 liters)

Type of Oil ISO Grade 46 Anti-Wear Hydraulic Oil

Refer to Section 2.6.4, “Hydraulic System.”

Description 644E-42 and 944E-42

Valve Relief Settings:

Port Relief Attachment Tilt (Both Sides) 4,000 ±100 psi (275,8 ±6,9 bar)

Port Relief - Aux 3,000 ±100 psi (206,8 ±6,9 bar)

Transfer Carriage Cylinder Base Port Relief 2,500 ±100 psi (172,4 ±7 bar)

Transfer Carriage Cylinder Base Port Relief 3,750 ±100 psi (258,6 ±6,9 bar)

Extend Base Port Relief 3,000 ±100 psi (206,8 ±6,9 bar)

Pressure Reducing Relieving Valve - Stabilizer 75-150 psi (5,2-10,3 bar)

Pressure Reducing Valve - Park Brakes 550 ±50 psi (37,9 ±3,4 bar)

Pressure, Steering Relief 2,500 ±100 psi (172,4 ±7 bar)

Main Pump Standby Pressure @ Valve Inlet 200-250 psi (13,8-17,2 bar)

Main Relief Pressure @ Main Valve Inlet 3,500 ±100 psi (241,3 ±6,9 bar)

Accumulator Charge Valve Low Setting 1050 ±50 psi (72,4 ±3,4 bar)

High Setting 1950 ±50 psi (134,4 ±3,4 bar)

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Lull 944E-42 Service Manual User Manual Page 36

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