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September 2016
Hydraulic Component
Specifications
Drive Pump
Type: bi-directional variable displacement piston pump
Displacement per revolution
Flow rate @ 3000 rpm
Function pump
Type: fixed displacement gear pump
Displacement per revolution
Flow rate @ 3000 rpm
Function pump
Type: fixed displacement gear pump
Displacement per revolution
Flow rate @ 3000 rpm
Part No. 1274592
Auxiliary Pump
Type: fixed displacement gear pump
Displacement per revolution
Auxiliary pump relief pressure
1.71 cu in
28 cc
Function manifold
22 gpm
System relief valve pressure,
84 L/min
maximum
(standard)
Primary boom down relief valve
pressure
Secondary boom down relief
0.24 cu in
valve pressure
4 cc
Steer flow regulator
3 gpm
11.4 L/min
platform rotate flow regulator
(230V generator
option)
Traction Manifold
Hot oil relief pressure
0.37 cu in
6 cc
2WD
4.4 gpm
4WD
16.7 L/min
Steer end drive motors (4WD models)
Displacement per revolution
Non-steer end drive motors
Displacement per revolution
Hydraulic Filters
Medium pressure filter
Medium pressure filter bypass
pressure
Hydraulic tank return filter
Z-34/22 IC
Service and Repair Manual
Specifications
0.5 gpm
1.9 L/min
3400 psi
234.5 bar
3200 psi
220.6 bar
1600 psi
110 bar
1600 psi
110 bar
1.0 gpm
3.8 L/min
0.3 gpm
1.1 L/min
170 psi
11.7 bar
150 psi
10.3 bar
1.53 cu in
25 cc
1.53 cu in
25 cc
Beta 3 ˆ 200
50 psi
3.4 bar
10 micron with
25 psi / 1.7 bar
bypass
5
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