Test The Drive Speed - Raised Or Extended Position - Genie S-80 Service Manual

Section 3 • Scheduled Maintenance Procedures
CHECKLIST B PROCEDURES
B-20
Test the Drive Speed -
Raised or Extended Position
Genie specifications require 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.
Select a test area that is firm, level and free of
obstructions.
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 Move the engine idle select toggle switch to
foot switch activated high idle (rabbit and foot
switch symbol).
4 Press down the foot switch and raise the boom
10° above horizontal.
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 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.
3 - 34
7 Continue at full speed and note the time when
the machine reference point crosses the finish
line. Refer to Section 2, Performance
Specifications .
Note: To adjust the speed, refer to Repair
procedure 1-2, How to Adjust the Joystick Max-out
Setting.
8 Press down the foot switch and lower the boom
to the stowed position.
9 Extend the boom 3 feet / 90 cm.
10 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.
11 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.
12 Continue at top speed and note the time when
the machine reference point crosses the finish
line. Refer to Section 2, Performance
Specifications .
Note: To adjust the speed, refer to Repair
procedure 1-2, How to Adjust the Joystick Max-out
Setting.
S-80 • S-85 • S-80X
February 2012
Part No. 122985