
Section 3 • Scheduled Maintenance Procedures
Part No. 227656
GR-20J • GR-26J
3 - 15
September 2016
CHECKLIST
B
PROCEDURES
B-7
Test the Drive Brakes
Genie specifications require that this procedure be
performed every 250 hours or quarterly, whichever
comes first.
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.
Note: Perform this procedure with the machine on
a firm, level surface that is 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 red Emergency Stop button to the on
position at both the ground and platform
controls.
Note: Rotate the red Emergency Stop button at
platform control one quarter turn in a clockwise
direction to restore the power supply. The red
Emergency Stop button returns automatically to
the out, or on position.
3 Lower the platform to the stowed position.
4 Press the drive function select button.
a
drive function select button BN130
5 Choose a point on the machine i.e. contact
patch of a tire, as a visual reference for use
when crossing the test line.
6 Bring the machine to top drive speed before
reaching the test line. Release the function
enable switch or the joystick when your
reference point on the machine crosses the test
line.
7 Measure the distance between the test line and
your machine reference point. Refer to
Section 2,
Specifications
.
Note: The brakes must be able to hold the machine
on any slope it is able to climb.
a
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