Section 4 • Repair Procedures
REV A
June 2007
Part No. 112657
GS-2668 RT • GS-3268 RT
4 - 79
Enable the descent delay function:
49 Push in the red Emergency Stop button to the
off position at the ground controls.
50 Turn the key switch to ground control.
51 Press and hold both the blue platform up and
yellow platform down buttons. Pull out the red
Emergency Stop button to the on position at the
ground controls.
Result:
TUNE
SPEEDS
is showing in the diagnostic
display window.
52 Use the yellow platform down arrow to scroll to
select options.
Result:
SELECT
OPTIONS
is showing in the
diagnostic display window. The ECM is now in
programming mode.
53 Press the lift function enable button.
Result:
DESCENT
DELAY
OFF
is showing in the
diagnostic display window.
54 Press the lift function enable button to activate
the descent delay option.
Result:
DESCENT
DELAY
ON
is showing in the
diagnostic display window.
55 Push in the red Emergency Stop button to the
off position at the ground controls.
56 Pull out the red Emergency Stop button to the
on position at the ground controls.
Calibrate the down limit switch:
57 Turn the key switch to platform control. Start the
engine.
58 Raise the platform approximately 1 m.
59 Lower the platform until the down limit switch
activates and the platform stops lowering.
Quickly release the controls and then
immediately
attempt to lower the platform to
the stowed position.
Result: The platform stops for 4 to six seconds.
Release the joystick and proceed to step 67.
Result: The platform stops and then will
immediately begin to lower again. The down
limit switch needs to be calibrated. Proceed to
step 60.
60 Raise the platform to approximately 4 m.
61 Rotate the safety arm away from the machine
and let it hang down.
62 Loosen the fasteners securing the down limit
switch just enough to allow movement of the
limit switch.
63 Move the roller head of the down limit switch
1 mm upwards. Tighten the fasteners. Do not
over tighten.
64 Raise the platform approximately 1 m.
65 Return the safety arm to the stowed position.
66 Repeat this procedure beginning with step 59.
PLATFORM OVERLOAD COMPONENTS
Summary of Contents for GS-2668 RT
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