Maintenance Manual
March 2022
Quarterly Maintenance Procedures
68
S
®
Booms • Z
®
Booms
Part No. 1268489GT
Q-20
Confirm the Proper Brake
Configuration
Genie specifications require that this procedure be
performed quarterly.
Proper brake configuration is essential to safe
operation and good machine performance.
Hydrostatic brakes, hydraulically and electrically
released, spring-applied individual wheel brakes
can appear to operate normally when they are
actually not fully operational.
1 Locate the drive hub disconnect cap.
1 models with tires
2 models with TRAX
2 Check each drive hub disconnect cap to be
sure it is in the engaged position.
1 brake disengaged position
2 brake engaged position
Q-21
Test the Drive Brakes
Genie specifications require that this procedure be
performed quarterly.
Proper brake action is essential to safe machine
operation. The drive brake function should operate
smoothly, free of hesitation, jerking and unusual
noise. Hydraulically and electrically released,
spring applied 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 maintenance procedure,
Confirm the Proper Brake
Configuration
.
Note: Select a test area that is firm, level and free
of obstructions.
1 Mark a test line on the ground for reference.
2 Choose a point on the machine (i.e., contact
patch of a tire) as a visual reference for use
when crossing the test line.
3 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.
4 Measure the distance between the test line
and your machine reference point. Refer to
Specifications,
Performance Specifications
.
Note: The brakes must be able to hold the
machine on any slope it is able to climb.
Summary of Contents for Genie Lift Guard S-40
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