Test The Drive Brakes - Genie Z-60/34 Service Manual

November 2003
REV A
B-16

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. Hydrostatic brakes and hydraulically-
released individual wheel brakes can appear to
operate normally when they are actually not fully
operational.
Collision hazard. Be sure that the
machine is not in free-wheel or
partial free-wheel configuration.
Refer to B-8, Confirm the Proper
Brake Configuration.
Select a test area that is firm, level
and free of obstructions.
1 Mark a test line on the ground for reference.
2 Start the engine from the platform controls.
3 Move the engine idle control switch to
foot switch activated high idle (rabbit and
foot switch), then lower the boom into the
stowed position.
Part No. 75861
Section 3 • Scheduled Maintenance Procedures
4 Choose a point on the machine; i.e., contact
patch of a tire, as a visual reference for use
when crossing the test line.
5 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.
6 Measure the distance between the test line and
your machine reference point. Refer to
Section 2, Specifications.
Genie Z-60/34
CHECKLIST B PROCEDURES
The brakes must be able to hold
the machine on any slope it is able
to climb.
3 - 29