Genie S-40 Service Manual page 122

October 2013
4 Support the pump with a 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 from the machine.
Component damage hazard. The
hydraulic pump may become
unbalanced and fall if not properly
supported.
Models with hydraulic tank shut-off valves:
Component damage hazard. Be
sure to open the two hydraulic tank
valves and prime the pump after
installing the pump.
Models without hydraulic tank shut-off valves:
Component damage hazard. Be
sure to fill the hydraulic tank to
specification and prime the pump
after installing the pump.
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 safety pin (if equipped) from the
engine pivot plate latch.
Note: The engine pivot plate latch is located under
the engine turntable pivot plate at the counterweight
end of the machine.
3 Open the engine pivot plate latch and swing the
engine pivot plate out and away from the
machine.
Part No. 102521
4 Ford models: Close the valve on the LPG tank
then disconnect the hose from the tank. Move
the fuel select switch to the LPG position.
Perkins models: Disconnect the engine wiring
harness from the fuel solenoid at the injector
pump.
Deutz models: Hold the manual fuel shutoff
valve clockwise to the closed position.
5 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.
6 Ford models: Connect the LPG hose to the
LPG tank and open the valve on the tank. Move
the fuel select switch to the gasoline position.
Perkins models: Connect the engine wiring
harness to the fuel solenoid.
Deutz models: Release the manual fuel shutoff
valve.
7 Start the engine from the ground controls and
check for hydraulic leaks.
S-40 • S-45
Section 4 • Repair Procedures
HYDRAULIC PUMPS
a
a manual fuel shutoff valve
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