November 2016
Service and Repair Manual
Ground Controls
Part No. 1272220GT
GS-2669 DC • GS-3369 DC • GS-4069 DC
37
9
Center a lifting jack under the drive chassis at
the ground controls side of the machine.
10 Raise the machine approximately 4 inches /
10 cm.
11 Place a 1.94 x 10 x 10 inch / 4.93 x 25 x 25 cm
thick steel block under both wheels at the
ground controls side of the machine.
12 Lower the machine onto the blocks.
13 Raise the platform approximately 12 feet / 3.6
m.
Result: The tilt alarm does not sound and all
functions will operate. Proceed to step 15.
Result: The drive function and the lift function
will not operate and the tilt alarm will sound at
180 beeps per minute. Proceed to step 14.
14 Turn the level sensor adjusting nuts just until
the level sensor alarm does not sound.
15 Lower the platform to the stowed position.
16 Raise the machine approximately 4 inches /
10 cm.
17 Remove the blocks from under both wheels.
18 Lower the machine and remove the jack.
19 Center a lifting jack under the drive chassis at
the engine side of the machine.
20 Raise the machine approximately 4 inches /
10 cm.
21 Place a 2.25 x 10 x 10 inch / 5.72 x 25 x 25 cm
thick steel block under both wheels at the
ground controls side of the machine.
22 Lower the machine onto the blocks.
23 Raise the platform approximately 12 feet / 3.6
m.
Result: The drive function and the lift function
will not operate and the tilt alarm will sound at
180 beeps per minute.
Result: If the tilt sensor alarm does not sound,
adjust the tilt level sensor until the alarm just
begins to sound OR the down limit switch may
need to be adjusted.
24 Lower the platform to the stowed position.
25 Push in the red Emergency Stop button to the
off position at both the ground and platform
controls.
26 Turn the key switch to the off position.
27 Raise the machine approximately 4 inches /
10 cm.
28 Remove the blocks from under both wheels.
29 Lower the machine and remove the jack.
