July 2021
Service and Repair Manual
Hydraulic Pumps
Part No. 1312350GT
Z
®
-45/25 • Z
®
-45/25J
55
7-2
Drive Pump
The drive pump is a bi-directional variable
displacement piston pump. The pump output is
controlled by the electro-proportional controller,
located on the pump. The only adjustment that can
be made to the pump is the neutral or null
adjustment. Any internal service to the pump
should only be performed at an authorized Eaton
Hydraulics center. Call Genie Service Department
to locate your local authorized service center.
How to Remove the Drive Pump
Component damage hazard. The
work area and surfaces where
this procedure will be performed
must be clean and free of debris
that could get into the hydraulic
system and cause severe
component damage. Dealer
service is recommended.
Note: When removing a hose assembly or fitting,
the O-ring (if equipped) on the fitting and/or hose
end must be replaced. All connections must be
torqued to specification during installation. Refer to
Specifications,
Hydraulic Hose and Fitting Torque
Specifications.
1 Disconnect the electrical connectors at the
electrical proportional controller located on the
drive pump.
2 Locate the two hydraulic tank valves at the
hydraulic tank through the access hole
underneath the turntable. Close the valves.
Component damage hazard.
The engine must not be started
with the hydraulic tank shut-off
valves in the closed position or
component damage will occur. If
the tank valves are closed,
remove the key from the key
switch and tag the machine to
inform personnel of the
condition.
open
closed
3 Tag and disconnect and plug the hydraulic
hoses from the drive and lift/steer pumps. Cap
the fittings on the pumps.
Bodily injury hazard. Spraying
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to
squirt or spray.
4 Support the pump with a lifting device and
remove the two drive pump mounting
fasteners.
Summary of Contents for Genie Z-45/25 Bi-Energy
Page 71: ...July 2021 Service and Repair Manual Manifolds Part No 1312350GT Z 45 25 Z 45 25J 59 ...
Page 73: ...July 2021 Service and Repair Manual Manifolds Part No 1312350GT Z 45 25 Z 45 25J 61 ...
Page 80: ...Service and Repair Manual July 2021 Manifolds 68 Z 45 25 Z 45 25J Part No 1312350GT ...
Page 83: ...July 2021 Service and Repair Manual Manifolds Part No 1312350GT Z 45 25 Z 45 25J 71 ...
Page 119: ...July 2021 Service and Repair Manual 107 Electrical Schematic Options ...
Page 123: ...July 2021 Service and Repair Manual 111 Wiring Diagram 2 2kW Hydraulic Generator ...
Page 125: ...July 2021 Service and Repair Manual 113 Electrical Schematic Kubota D1105 ...
Page 128: ...Service and Repair Manual July 2021 116 Functions Electrical Schematic ...
Page 129: ...July 2021 Service and Repair Manual 117 Electrical Schematic Deutz D2 9 ...
Page 132: ...Service and Repair Manual July 2021 120 Deutz D2 9 L4 Engine Wire Harness ...
Page 133: ...July 2021 Service and Repair Manual 121 Electrical Schematic Deutz 2011 L03i ...
Page 136: ...Service and Repair Manual July 2021 124 Electrical Schematic Deutz D436 1 ...
Page 137: ...July 2021 Service and Repair Manual 125 Electrical Schematic Deutz D436 2 ...
Page 139: ...July 2021 Service and Repair Manual 127 Hydraulic Schematic 2WD Models ...
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