Test The Engine Idle Select - Genie S-40 Service Manual

October 2013
Skip to step 3 if the low idle rpm is correct.
2 Loosen the low idle lock nut. Turn the low idle
adjustment screw clockwise to increase the
rpm, or counterclockwise to decrease the rpm.
a b
Tighten the low idle lock nut and confirm the
rpm.
a solenoid boot
b high idle adjustment nut
c clevis
d low idle lock nut and adjustment
screw
3 Move the function enable toggle switch to the
high idle (rabbit symbol) position. Refer to
Section 2 , Specifications .
If high idle rpm is correct, disregard
adjustment step 4.
4 Loosen the yoke lock nut. Turn the high idle
adjustment nut and solenoid boot
counterclockwise to increase the rpm or
clockwise to decrease the rpm. Tighten the
yoke lock nut and re-check the rpm.
Note: Be sure the solenoid fully retracts when
activating high idle.
Part No. 102521
c d
S-40 • S-45
Section 3 • Scheduled Maintenance Procedures
CHECKLIST B PROCEDURES
B-12

Test the Engine Idle Select

Genie specifications require that this procedure be
performed every 250 hours or quarterly, whichever
comes first.
A properly operating engine idle select switch
is essential to good engine performance and safe
machine operation. There are two settings.
Foot switch activated low idle (turtle symbol)
allows the operator to control individual boom
functions.
Foot switch activated high idle (rabbit symbol)
should be used for normal machine operation. This
selection activates high idle only when the foot
switch is pressed down.
1 Pull out the red Emergency Stop button to the
on position at both the ground and platform
controls.
2 Start the engine from the ground controls then
move and hold the function enable/rpm select
toggle switch to the high idle (rabbit symbol).
Result: The engine should change to high idle.
3 Release the function enable/rpm select toggle
switch.
Result: The engine should return to low idle.
4 Turn the key switch to platform controls.
5 Move the engine idle control switch to foot
switch activated high idle (rabbit and foot switch
symbol).
Result: The engine should not change to
high idle.
6 Press down the foot switch.
Result: The engine should change to high idle.
7 Move the engine idle control switch to foot
switch activated low idle (turtle symbol).
Result: The engine should change to low idle.
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