Hydraulic Tank - Terex Genie GS-3390 Service And Repair Manual

June 2021
11 Using an approved hand-operated pump,
drain the fuel tank into a suitable container.
Refer to Specifications, Machine
Specifications.
Explosion and fire hazard. When
transferring fuel, connect a
grounding wire between the
machine and pump or container.
Note: Be sure to only use a hand operated pump
suitable for use with gasoline and/or diesel fuel.
12 Remove the fuel tank hold down strap
retaining fasteners. Remove the straps from
the fuel tank.
13 Support and secure the fuel tank to an
appropriate lifting device.
14 Remove the fuel tank from the machine.
Component damage hazard.
The fuel tank is plastic and may
become damaged if allowed to
fall.
Note: Clean the fuel tank and inspect for cracks or
other damage before installing.
Part No. 1272222GT
Fuel and Hydraulic Tanks
8-2

Hydraulic Tank

The primary functions of the hydraulic tank are to
cool, clean and deaerate the hydraulic fluid during
operation. It utilizes internal suction strainers for
the pump supply lines and has an external return
line filter with a filter condition indicator.
How to Remove the Hydraulic
Tank
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 Turn the key switch to ground controls and
pull out the red Emergency Stop button to the
on position at both ground and platform
controls.
2 Start the engine and raise the platform
approximately 18 feet / 5.5 m from the
ground.
3 Release the safety arm latch, lift the safety
arm and rotate to a vertical position. Lock the
safety arm in position.
Note: Be sure that the safety arm is locked in the
vertical position.
GS-84 • GS-90
Service and Repair Manual
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.
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