Terex Genie S-80 HF Series, Service And Repair Manual

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October 2019 Service and Repair Manual
Platform Components
Part No. 1280490GT S ® -80 XC ™ • S ® -85 XC ™ • S ® - 80 HF • S ® -85 HF 31
Platform Co mpon ents
2-1 Platform
2-1
Platform
How to Remove the Platform
1 Remove the cable clamp from the top of the
platform mounting weldment.
2 Remove the mounting fasteners from the
power to platform outlet box bracket. Lay the
outlet box and bracket assembly off to the
side. Do not disconnect the wiring.
3 Remove the foot switch mounting fasteners.
4 Remove the cover plate from the bottom of the
foot switch to access the foot switch wire
terminals.
5 Tag and disconnect the foot switch wiring from
the foot switch. Remove the cable from the
back of the platform.
Electrocution/burn hazard.
Contact with electrically charged
circuits could result in death or
serious injury. Remove all rings,
watches and other jewelry.
6 Remove the platform control box mounting
fasteners. Lower the control box and set it
aside.
Component damage hazard.
Cables can be damaged if they
are kinked or pinched.
Note: If your machine is equipped with an airline to
platform option, the airline must be disconnected
from the platform before removal.
7 Support and secure the platform to an
appropriate lifting device.
8 Remove the platform mounting fasteners and
remove the platform from the machine.
Crushing hazard. The platform
could become unstable and fall
when it is removed from the
machine if not properly
supported.
2-2 Platform Leveling Slave Cyli nder 2-2
Platform Leveling Cylinder
The slave cylinder and the rotator pivot are the two
primary supports for the platform. The slave
cylinder keeps the platform level through the entire
range of boom motion. It operates in a
closed-circuit hydraulic loop with the master
cylinder. The slave cylinder is equipped with
counterbalance valves to prevent movement in the
event of a hydraulic line failure.
How to Remove the Platform
Leveling Cylinder
Note: Before cylinder removal is considered, bleed
the slave cylinder to be sure there is no air in the
closed loop.
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.
How to R emove the Pl atform Leveling Slave C ylinder
1 Extend the primary boom until the slave
cylinder barrel-end pivot pin is accessible.
2 Raise the primary boom slightly and place
blocks under the platform for support.
3 Lower the primary boom until the platform is
resting on the blocks just enough to support
the platform.
Note: Do not rest the entire weight of the boom on
the blocks.