7 - 40
Genie Z-45/22
Part No. 29487
Service Manual - First Edition
Section 7 - Repair Procedures
6 Remove the pressure gauge and reconnect the
hydraulic hose.
7 Gasoline/LPG models: Reconnect the coil
wire to the distributor cap.
Diesel models: Reconnect the wiring to the
fuel
on solenoid.
How to Remove the Lift/Steer
Pump
1 Close the two hydraulic tank valves located at
the main pump.
2 Disconnect the hydraulic hoses from the pump
and cap them.
Bodily injury hazard. Spraying
hydraulic oil can perforate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressure to dissipate
gradually. Do not allow oil to squirt
or spray.
3 Remove the pump mounting bolts. Carefully
remove the pump.
Component damage hazard. Be
sure to open the two hydraulic
tank valves after re-installing the
pump.
10-1
Lift/Steer Pump
How to Test the Lift/Steer Pump
1 Gasoline/LPG models: Remove the coil wire
from the distributor cap.
Diesel models: Disconnect the 3 wires from
the fuel
on solenoid at the fuel injector pump.
Electrocution hazard. Contact with
hot or live circuits may result in
death or serious injury. Remove
all rings, watches and other
jewelry.
2 Disconnect the high pressure hydraulic hose
from the pump and cap it.
Burn hazard. Contact with hot oil
may cause severe burns.
3 Connect a 0 to 5000 psi (0 to 350 bar) pressure
gauge to the high pressure port on the pump.
4 Turn the key switch to ground control and pull
the Emergency Stop button to the
on position.
5 Observe the pressure gauge while cranking the
engine. Immediately stop cranking if the
pressure reaches or exceeds 3000 psi
(206 bar).
Hydraulic pressure in excess of
3000 psi (206 bar) will cause
severe component damage.
Result: If the pressure gauge reads 3000 psi
(206 bar), immediately stop cranking the
engine. The pump is good.
Result: If pressure fails to reach 3000 psi
(206 bar), the pump is bad and will need to be
replaced.
Hydraulic Pumps
open closed
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