Test The Ground Control Override - Genie ZX-135/70 Service Manual

Service Manual
Checklist B Procedures
5 Push and release the rpm select button until
low rpm is selected (turtle symbol).
Result: The engine should return to low idle.
1 low idle indicator light
2 foot switch activated high idle indicator
light
3 engine rpm select button
6 Turn the key switch to platform controls.
7 Push the engine rpm select switch until low
idle (turtle symbol) is selected.
Result: The engine should remain at low idle.
8 Press down the foot switch.
Result: The engine should remain at low idle.
9 Push the engine idle select button until the
foot switch activated high idle (rabbit symbol)
is selected.
Result: The engine should not change to high
idle.
10 Press down the foot switch.
Result: The engine should change to high
idle.
42
B-12

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 Start the engine and 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.
ZX-135/70
August 2014
Part No. 218700