Test The Drive Brakes - Genie Z-25/8 Service Manual

First Edition • Third Printing
B-9

Test the Drive Brakes

Proper brake action is essential to safe machine
operation. The drive brake function should operate
smoothly, free of hesitation, jerking and unusual
noise. Hydraulically-released individual wheel
brakes can appear to operate normally when not
fully operational.
Select a test area that is firm, level
and free of obstructions.
1 Mark a test line on the ground for reference.
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.
5 Lower the boom into the stowed 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
6 Move the lift/drive select switch (if equipped) to
the drive position.
7 Choose a point on the machine; i.e., contact
patch of a tire, as a visual reference for use
when crossing the test line.
8 Bring the machine to top drive speed before
reaching the test line. Release the drive joystick
when your reference point on the machine
crosses the test line.
9 Measure the distance between the test line and
your machine reference point.
Braking: paved surface
Stopping distance
The brakes must be able to hold
the machine on any slope it is able
to climb.
3 to 4 ft 0.9 to 1.2 m
4 - 15