Section 4 • Repair Procedures
REV A
June 2007
4 - 76
GS-2668 RT • GS-3268 RT
Part No. 112657
Set the pressure switch:
16 Using a wrench, turn the nut of the platform
overload pressure switch out of the hydraulic
line until the overload alarm sounds and the
engine stops running.
Note: Turning the nut out of the hydraulic line will
activate the alarm; turning the nut into the hydraulic
line will deactivate the alarm.
17 Slowly turn the nut of the platform overload
pressure switch one-quarter turn into the
hydraulic line.
18 Push in the red Emergency Stop button to the
off position at the ground controls.
19 Pull out the red Emergency Stop button to the
on position at the ground controls. Wait 3
seconds and start the engine.
Result: The alarm doesn't sound and the engine
will start and run. Proceed to step 20.
Result: The engine will not start and an alarm is
sounding. Repeat this procedure beginning with
step 17.
Note: The red Emergency Stop button must be
cycled after each quarter turn of the nut to allow
the platform overload system to reset.
Note: Wait a minimum of 3 seconds between each
quarter turn of the nut to allow the platform
overload system to reset.
20 Return the safety arm to the stowed position.
Lower the platform to the stowed position.
Note: After returning the safety arm to the stowed
position, use the auxiliary down function to lower
the platform.
Set the maximum height limit switch:
21 Using a suitable lifting device, place a test
weight in the center of the platform floor.
Secure the weight to the platform. Refer to the
chart below.
GS-2668 RT
567 kg
GS-3268 RT
454 kg
22 Raise the platform to approximately 4 m.
23 Rotate the safety arm away from the machine
and let it hang down.
24 Remove the maximum height limit switch
fasteners. Remove the maximum height limit
switch and set it to the side so that the limit
switch will not be activated.
25 Raise the platform until it is approximately
65 cm less than full height.
PLATFORM OVERLOAD COMPONENTS
Summary of Contents for GS-2668 RT
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