Check The Oscillate Directional Valve Linkage; Test The Ground Control Override - Genie S-80 Service Manual

February 2017
B-10
Check the Oscillate Directional
Valve Linkage
Genie specifications require that this procedure be
performed every 250 hours or quarterly, whichever
comes first.
Proper axle oscillation is essential to safe machine
operation. If the oscillate directional valve linkage is
not operating correctly, the stability of the machine
is compromised and it may tip over.
1 Remove the drive chassis cover from the
non-steer end of the machine.
2 Locate the oscillate directional valve inside of
the non-steer axle and inspect the linkage for
the following:
• Lock nut is tight against yoke
• Yoke clevis pins are installed
• Cotter pins are installed through clevis pins
• Linkage is properly attached to directional
valve
Part No. 1259369GT
Checklist B Procedures
B-11

Test the Ground Control Override

Genie specifications require that this procedure be
performed every 250 hours or quarterly, whichever
comes first.
A properly functioning ground control override is
essential to safe machine operation. The ground
control override function is intended to allow
ground personnel to operate the machine from the
ground controls whether or not the Emergency
Stop button on the platform controls is in the on or
off position. This function is particularly useful if the
operator at the platform controls cannot return the
boom to the stowed position.
1 Push in the platform red Emergency Stop
button to the off position.
2 Turn the key switch to ground controls.
3 Pull out the red Emergency Stop button to the
on position at the ground controls.
4 From the ground controls, operate each boom
function through a partial cycle.
Result: All boom functions should operate.
5 From the platform, activate the foot switch and
operate each boom function.
Result: No boom functions operate.
6 Pull out the red Emergency stop button to the
on position at the platform controls.
7 Activate the foot switch and operate each
boom function.
Result: No boom functions operate.
S-80 • S-85 • S-80X
Service Manual
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