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First Edition • Third Printing
B-11
Test the Drive Speed -
Raised Position
Proper drive function movement is essential to
safe machine operation. The drive function should
respond quickly and smoothly to operator control.
Drive performance should also be free of
hesitation, jerking and unusual noise over the
entire proportionally controlled speed range.
Select a test area that is firm, level
and free of obstructions.
1 Create start and finish lines by marking two
lines on the ground 40 feet (12.2 m) apart.
2 Turn the key switch to platform control and pull
out the Emergency Stop button to the
position at both the ground and platform
controls.
3 Press down the foot switch.
4 Move the lift/drive select switch (if equipped) to
the lift position.
Part No. 41314
ON
Genie Z-20/8N & Genie Z-20/8 & Genie Z-25/8
Section 4 • Scheduled Maintenance Procedures
TABLE B PROCEDURES
5 Raise the boom more than 5 feet (1.5 m).
6 Move the lift/drive select switch (if equipped) to
the drive position.
Be sure the drive speed select
switch is set to the
7 Choose a point on the machine; i.e., contact
patch of a tire, as a visual reference for use
when crossing the start and finish lines.
8 Bring the machine to maximum drive speed
before reaching the start line. Begin timing
when your reference point on the machine
crosses the start line.
9 Continue at full speed and note the time when
the machine reference point passes over the
finish line.
Drive speed:
raised position
40 ft/40 sec
position.
HIGH
0.6 mph
0.8 km/h
12.2 m/10.5 sec
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