Terex Genie GR-20J, Руководство по обслуживанию

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March 2022 Service Manual
Repair Procedures
Part No. 1312899GT GR ™ -20J • GR ™ -26J 59
4-2 Li ft Cylind er 4-2
Lift Cylinder
How to Remove the Lift Cylinder
Bodily injury hazard. This
procedure requires specific repair
skills and a suitable workshop.
Attempting this procedure without
the specific skills and tools could
result in death or serious injury
and significant component
damage.
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.
Note: Perform this procedure on a firm, level
surface with the machine in the stowed position.
1 Block the non-steer tires.
2 Open and remove the turntable covers of the
machine.
3 Center a lifting jack under the drive chassis at
the steer end of the machine.
4 Raise the steer end of the machine
approximately 10 inches / 25 cm to access
the nut at the bottom of the lift cylinder.
5 Place blocks under the chassis for support.
Lower the machine onto the blocks.
Crushing hazard. The chassis
will fall if not properly supported.
1 mast head cover
2 mast head cover fasteners
3 mast head
4 jib boom
5 proximity sensor
6 lift cylinder
7 mast head fasteners
8 lift cylinder fasteners
6 Remove the nut securing the bottom of the lift
cylinder to the chassis. Set it to the side.
7 Raise the machine slightly. Remove the
blocks from under the chassis and lower the
machine onto the ground. Remove the jack.
8 Remove the fasteners securing the mast head
cover to the mast. Remove the mast head
cover. Set the mast head cover and fasteners
to the side.