Test The Drive Brakes; Test The Drive Speed - Stowed Position - Genie S-100 Service Manual

January 2010
REV B
B-19

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.
Collision hazard. Be sure that the
machine is not in free-wheel or
partial free-wheel configuration.
Refer to B-7, 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 Press the engine rpm select button until the foot
switch activated high idle (rabbit and foot switch
symbol) is selected, then lower the boom into
the stowed position.
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
controller 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 .
Part No. 62401
Section 4 • Scheduled Maintenance Procedures
B-20
Test the Drive Speed -
Stowed Position
Proper drive function movement is essential to safe
machine operation. The drive function should
respond quickly and smoothly to operator control.
Drive performance should also be free of hesitation,
jerking and unusual noise over the entire
proportionally controlled speed range.
1 Create start and finish lines by marking two lines
on the ground 40 feet / 12.2 m apart.
2 Start the engine from the platform controls.
3 Press the engine rpm select button until the foot
switch activated high idle (rabbit and foot switch
symbol) is selected. then lower the boom into
the stowed position.
4 Choose a point on the machine; i.e., contact
patch of a tire as a visual reference for use
when crossing the start and finish lines.
5 Bring the machine to top drive speed before
reaching the start line. Begin timing when your
reference point on the machine crosses the
start line.
6 Continue at full speed and note the time when
the machine reference point crosses the finish
line. Refer to Section 2, Specifications .
S-100 & S-105 & S-120 & S-125
CHECKLIST B PROCEDURES
Genie requires that this procedure
be performed every 250 hours or
quarterly, whichever comes first.
Select a test area that is firm, level
and free of obstructions.
Perform this procedure with the
boom in the stowed position.
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