Test The Drive Brakes - Genie GS-2669 RT Service Manual

Section 3 • Scheduled Maintenance Procedures
CHECKLIST B PROCEDURES
B-9

Test the Drive Brakes

Genie requires 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 they
are actually not fully operational.
1 Mark a test line on the ground for reference.
2 Start the engine from platform controls.
3 Choose a point on the machine; i.e., contact
patch of a tire, as a visual reference for use
when crossing the test line.
4 Slowly move the joystick in the direction
indicated by the blue arrow on the control panel
until the machine begins to move, then return
the joystick to the center position.
Result: The machine should move in the
direction that the blue arrow points on the
control panel, then come to an abrupt stop.
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5 Slowly move the joystick in the direction
indicated by the yellow arrow on the control
panel until the machine begins to move, then
return the joystick to the center position.
Result: The machine should move in the
direction that the yellow arrow points on the
control panel, then come to an abrupt stop.
6 Bring the machine to maximum drive speed
before reaching the start line. Release the
function enable switch on the joystick or release
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.
November 2014
Part No. 229753