Service and Repair Manual
November 2016
Platform Overload Components
88
GS-2669 DC • GS-3369 DC • GS-4069 DC
Part No. 1272220GT
12 Remove the supporting device from under the
platform.
13 Raise the platform to 13 ft / 4 m.
14 Lift the safety arm, move it to the center of the
scissor arm and rotate down to a vertical
position.
15 Lower the platform onto the safety arm.
16 Install the cover onto the platform overload
pressure switch or switch box and securely
tighten the cover retaining fasteners. Do not
over tighten.
17 Apply Sentry Seal to one of the cover retaining
fasteners where it contacts the platform
overload pressure switch box.
18 Raise the platform and rotate the safety arm to
the stowed position.
19 Lower the platform to the stowed position.
Check the Maximum Height Limit
Switch
1
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-2669
1500 lb
680 kg
GS-3369
1000 lb
454 kg
GS-4069
800 lb
363 kg
2
Raise the platform to approximately 13 ft / 4 m.
3
Rotate the safety arm away from the machine
and let it hang down.
4
Raise the platform until it activates the
maximum height limit switch.
Result: The platform should stop raising and
the alarm does not sound. Proceed to step 7.
Result: The platform continues to raise OR the
alarm sounds. Proceed to step 5.
5
Lower the scissor assembly until the safety
arm rest on the cross tube.
6
Adjust the maximum height limit switch by
moving it towards the non-steer end of the
machine. Repeat this procedure beginning
with step 2.
7
Lower the platform enough to return the safety
arm to the stowed position.
