Genie Z-45/22 Service Manual page 160

Service Manual - Second Edition
800-610-4101
ActionRental.com
6 Press down the foot switch and adjust the "A"
potentiometer counterclockwise to increase
voltage or clockwise to decrease voltage.
"A" potentiometer specifications
Voltage setting - 2WD model
Voltage setting - 4WD model
7 Move the engine speed control switch to low
idle (turtle symbol).
8 Press down the foot switch and then adjust the
"C" potentiometer to obtain a 0.01V DC to
0.03V DC voltage reading.
9 Move the engine speed control switch to foot
switch activated high idle (rabbit and foot
switch symbol).
10 Press down the foot switch and re-adjust the
"A" potentiometer to the previous voltage
setting.
11 Be sure that the boom is in the fully stowed
position, then drive the boom and observe how
the engine rpm reacts to drive control handle
movement. If the machine surges or hunts,
adjust the "C" potentiometer counterclockwise
until surging is minimized.
Under an extreme load, an
excessive counterclockwise
adjustment to the "C"
potentiometer will cause the
engine to stall. The "C"
potentiometer adjustment is a
compromise between engine
stability and engine droop.
12 Disconnect the volt meter.
Part No. 32960
13 Raise the primary boom above the drive limit
switch.
8.0V DC
9.0V DC
14 Drive the boom for 20 feet (6.1 m) and record
the elapsed time. Do this again in the opposite
direction.
15 Adjust the "B" potentiometer to obtain the
correct elevated drive speed of 1 foot per
second (30.5 cm per second).
16 Close the platform control box lid and re-install
the fasteners.
Drive speed specifications
Stowed position, high range, distance: 20 ft / 6 m
2WD
4WD
Boom raised, high range, distance: 20 ft / 6 m
2WD and 4WD
Genie Z-45/22
Section 7 - Repair Procedures
PLATFORM CONTROLS
a
a drive limit switch
2.85 seconds (±0.25 seconds)
2.75 seconds (±0.25 seconds)
1 foot per second
30.5 cm per second
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