Genie S-60 Service Manual page 213

Section 7 • Repair Procedures
PLATFORM CONTROLS
4 Start the engine from the platform controls.
5 Move the engine idle control toggle switch to
foot switch activated high idle (rabbit and foot
switch symbol).
6 Press down the foot switch and turn the "A"
tripmot adjustment screw counterclockwise to
increase voltage or clockwise to decrease
voltage.
"A" potentiometer specifications - all models
Voltage setting
7 Move the engine idle control toggle switch to
low idle (turtle symbol).
8 Press down the foot switch and turn the "C"
trimpot adjustment screw to obtain a
0.10V DC to 0.13V DC voltage reading.
9 Move the engine idle control toggle switch to
foot switch activated high idle (rabbit and foot
switch symbol).
10 Press down the foot switch and re-adjust the
"A" trimpot to the previous voltage setting in
step 6.
7 - 10
11 Be sure that the boom is in the stowed position,
then drive the machine and observe how the
engine rpm reacts to drive controller movement.
If the engine surges or hunts, adjust the "C"
potentiometer counterclockwise until surging is
minimized.
12 to 12.5V DC
12 Disconnect the volt meter.
13 Raise the boom above horizontal.
14 Drive the machine for 40 feet (12 m) and
record the elapsed time. Repeat this step in
the opposite drive direction.
15 Adjust the "B" trimpot to obtain the correct
raised drive speed of 1 foot per second (0.31 m
per second). Turn the "B" trimpot adjustment
screw counterclockwise to increase speed or
clockwise to decrease speed.
16 Close the platform control box lid and install
the fasteners.
Drive speed: stowed position,
high range
Gasoline/LPG models
Diesel models
Boom raised or extended
all models
Genie S-60 & Genie S-65
Third Edition • First Printing
Under an extreme load, an
excessive counterclockwise
adjustment to the "C" trimpot will
cause the engine to stall. The "C"
trimpot adjustment is a
compromise between engine
stability (surging) and engine
rpm drop.
2WD
40 ft/6.2 sec
12.2 m/6.2 sec12.2 m/9.1 sec
40 ft/6.8 sec
12.2 m/6.8 sec 12.2 m/9.7 sec
12.2m/40 sec
Part No. 65196
4WD
40 ft/9.1 sec
40 ft/9.7 sec
40 ft/40 sec