Terex Genie GS84D-401 User Manual

Service and Repair Manual June 2021
Steer Axle Components
102 GS
™
-84 • GS
™
-90 Part No. 1306587GT
9-2
Steer Cylinder
How to Remove the Steer
Cylinder
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 Tag, disconnect and plug the hydraulic hoses
from the steer cylinder. Cap the fittings on the
cylinder.
Bodily injury hazard
. Spraying
hydraulic oil can penetrate and
burn skin. Loosen hydraulic
connections very slowly to allow
the oil pressur
e to dissipate
gradually. Do not allow oil to
squirt or spray.
2 Remove the pin retaining fasteners from the
barrel-end pivot pin. Place a rod through the
pin and twist to remove the pin.
Note: While removing the pin retaining fasteners,
take note of the quantity and location of the
spacers when removing the pivot pin.
3 Remove the pin retaining fasteners from the
rod-end pivot pin. Place a rod through the pin
and twist to remove the pin.
Note: While removing the pin retaining fasteners,
take note of the quantity and location of the
spacers when removing the pivot pin.
4 Remove the steer cylinder from the machine.
9-3
Oscillating Axle Option - GS-90
Models
How the Oscillating Axle
Functions
When driving the GS-90 with the platform in the
stowed position, the oscillating axle function
ensures that all four wheels maintain solid contact
with the ground, delivering the maximum traction
available.
When driving the GS-90 with the platform raised
above the down limit switch height, the oscillating
axle function is limited in that the oscillating
cylinders only respond to input from the oscillating
axle limit switches, located on the rear axle.
Oscillate Stowed Relay K11
Terminal 30 of the Oscillate Stowed relay, K11,
receives power from the SCON. When the
platform is raised above the down limit height
measured by the height angle sensor, power to
terminal 30 will be cut.
Terminal 86 of K11 is connected to pin J2-C5 at
the ECM. Pin J2-C5 is powered anytime the Brake
Release valve coil Y2 is energized, thus
energizing K11 terminal 87 and, ultimately, all
four oscillating valve coils, allowing oil to pass
between the oscillating cylinders. J2-C5 continues
to power terminal 86 for 0.5 seconds after Y2 is
de-energized.

Terex Genie GS84D-401 Specifications

General

Brand	Terex
Model	Genie GS84D-401
Category	Lifting Systems
Language	English