Test The Drive Speed - Raised Position - Genie GS-3390 Service Manual

July 2007
REV G
Models before serial number GS9003-41523,
and after serial number GS9003-41522 with
software revision B1 or lower:
6 Bring the machine to maximum drive speed
before reaching the start line. Begin timing
when your reference point on the machine
crosses the start line.
7 Continue at full speed and note the time when
the machine reference point passes over the
finish line. Refer to Section 2, Specifications.
Models after serial number GS9003-41522 with
software revision C0 or higher:
6 Bring the machine to maximum forward drive
speed before reaching the start line. Begin
timing when your reference point on the
machine crosses the start line.
7 Continue at full speed and note the time when
the machine reference point passes over the
finish line. Refer to Section 2, Specifications.
8 Bring the machine to maximum reverse drive
speed before reaching the start line. Begin
timing when your reference point on the
machine crosses the start line.
9 Continue at full speed and note the time when
the machine reference point passes over the
finish line. Refer to Section 2, Specifications.
Part No. 72863
Section 3 • Scheduled Maintenance Procedures
B-16
Test the Drive Speed -
Raised Position
Genie requires that this procedure be performed
every 250 hours or quarterly, whichever comes
first.
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 Turn the key switch to platform controls and pull
out the red Emergency Stop button to the on
position at both the ground and platform
controls.
3 Start the engine from the platform controls.
4 Press and hold a function enable/speed select
button. Raise the platform approximately
12 feet / 3.6 m from the ground.
5 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.
6 Press and hold the function enable switch and
slowly move the control handle to the full drive
position.
7 Bring the machine to maximum drive speed
before reaching the start line. Begin timing
when your reference point on the machine
crosses the start line.
8 Continue at full speed and note the time when
the machine reference point passes over the
finish line. Refer to Section 2, Specifications.
GS-3390 • GS-4390 • GS-5390
CHECKLIST B PROCEDURES
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