Genie Z-51/30J, Service And Repair Manual

Page: 14 / 144

4 Z®-51/
31J
Part No. 1268553GT
October 2020 Service and Repair Manual
Specifications
Hydraulic Component
Specifications
Drive pump
Type: bi-directional, variable
displacement piston
pump
Flow rate @ 2500 rpm 32 gpm
121 L/min
Drive pressure, maximum 3500 psi
241 bar
Charge pump
Type gear
Displacement 0.84 cu in
13.76 cc
Flow rate @ 2500 rpm 9.1 gpm
34.4 L/min
Charge pressure @ 2500 rpm 315 psi
21.7 bar
Function pump
Type gear
Displacement 0.67 cu in
11 cc
Flow rate @ 2500 rpm 7.25 gpm
27.4 L/min
Auxiliary pump
Type: gear, fixed
displacement
Displacement per revolution 0.067 cu in
1.1 cc
Auxiliary pump relief pressure 3200 psi
220.6 bar
Function Manifold
System relief valve pressure 3200 psi
220.6 bar
Secondary boom down relief
valve pressure 2100 psi
145 bar
Platform level relief valve
pressure 2500 psi
172 bar
Steer flow regulator 1.5 gpm
5.7 L/min
Boom extend flow regulator 2 gpm
7.6 L/min
Jib boom / platform rotate flow
regulator 0.4 gpm
1.5 L/min
Drive manifold
Hot oil relief pressure 250 psi
17.2 bar
Steer end drive motors
Displacement per revolution
1.53 cu in
25 cc
Non-steer end drive motors
Displacement per revolution,
variable (2 speed motor) 0.01 to 1.83 cu in
1.61 to 30 cc
Hydraulic Filters
High pressure filter Beta 3 ³ 200
High pressure filter bypass
pressure 100 psi
6.89 bar
Medium pressure filter Beta 3 ³ 200
Medium pressure filter
bypass pressure 50 psi
3.4 bar
Hydraulic return filter 10 micron with 25 psi /
1.7 bar bypass