Genie GS-2669 RT Service Manual page 124

Section 4 • Repair Procedures
MANIFOLDS
How to Adjust the Platform Up
Relief Valve
(Models with Platform overload)
Note: Be sure that the hydraulic oil level is within
the top 2 inches / 5 cm of the sight gauge.
Note: This procedure will require a pressure
switch harness assembly.
1 Connect a 0 to 5000 psi / 0 to 350 bar pressure
gauge to test port #1 on the function manifold.
2 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: is showing in the diagnostic
TUNE SPEEDS
display window.
a
a diagnostic display
b blue platform up button
c lift function enable button
d yellow platform down button
3 Use the yellow platform down arrow to scroll to
select options.
Result:
SELECT OPTIONS
diagnostic display window. The ECM is now in
programming mode.
4 - 54
is showing in the
GS-2669 RT • GS-3369 RT • GS-4069 RT
4 Press the lift function enable button.
Result:
DESCENT DELAY
diagnostic display window.
5 Press the lift function enable button to
deactivate the descent delay option.
6 Use the yellow platform down arrow to scroll to
overload.
Result:
OVERLOAD ON
display window.
7 Press the lift function enable button to
deactivate the overload option.
8 Use the yellow platform down arrow to scroll to
return to the main menu.
Result:
RETURN TO MAIN MENU
diagnostic display window.
9 Press the lift function enable button.
b
Result:
SELECT OPTIONS
diagnostic display window.
c
10 Push in the red Emergency Stop button to the
off position at the ground controls.
d
11 Pull out the red Emergency Stop button to the
on position at both the ground controls.
12 Start the engine from the ground controls.
13 Raise the platform approximately 10 feet / 3 m.
14 Lift the safety arm and move it to the center of
the linkage and rotate to a vertical position.
15 Lower the platform onto the safety arm. Push in
the red Emergency Stop button to the off
position.
November 2014
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is showing in the diagnostic
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is showing in the
Part No. 229753