Genie Z80/60 Service Manual page 165

June 2011
REV B
4 Support the pumps with a suitable lifting device
and remove the two drive pump mounting
fasteners.
5 Carefully pull the drive pump out until the pump
coupler separates from the flex plate.
6 Remove the drive pump assembly from the
machine.
Component damage hazard.
Be sure to open the two hydraulic
tank valves and prime the pump
after installing the pump.
Note: Before installing the pump, verify proper
pump coupler spacing. See 5-2, Flex Plate.
How to Prime the Pump
1 Connect a 0 to 600 psi / 0 to 50 bar pressure
gauge to the test port on the drive pump.
2 Remove the engine tray retaining fastener.
Swing the engine tray out away from the
machine.
a engine tray anchor hole
b engine tray retaining fastener
3 Locate the engine tray anchor hole at the pivot
end of the engine tray.
Part No. 88619
4 Install the bolt removed in step 4 into the anchor
hole to secure the engine tray from moving.
Crushing hazard. Failure to install
the bolt into the engine tray to
secure it from moving could result
in death or serious injury.
5 Deutz and Perkins models: Tag and
disconnect the engine wiring harness from the
fuel shutoff solenoid at the injector pump.
GM and Ford models: Close the valve on the
LPG tank. Disconnect the hose from the tank.
Move the fuel select switch to the LPG position.
6 Have another person crank the engine with the
starter motor for 15 seconds, wait 15 seconds,
then crank the engine an additional 15 seconds
or until the pressure reaches 320 psi / 22 bar.
7 Deutz and Perkins models: Connect the
engine wiring harness to the fuel solenoid.
GM, Ford and Continental models: Connect
the LPG hose to the LPG tank and open the
valve on the tank.
8 Start the engine from the ground controls and
check for hydraulic leaks.
Z-80/60
Section 4 • Repair Procedures
HYDRAULIC PUMPS
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