Genie GS-3384 Service Manual page 144

Section 4 • Repair Procedures
GROUND CONTROLS
Confirm the front-to-back level sensor setting:
45 Center a lifting jack under the drive chassis at
the steer end of the machine.
46 Raise the machine approximately
6 inches / 15 cm.
47 Models with RT tires: Place a
4.08 x 10 x 10 inch / 10.36 x 25 x 25 cm thick
steel block under both wheels at the ground
controls side of the machine
Models with flotation tires: Place a
4.58 x 10 x 10 inch / 11.63 x 25 x 25 cm thick
steel block under both wheels at the ground
controls side of the machine.
48 Lower the machine onto the blocks.
49 Raise the platform approximately 16 feet / 5 m.
Result: The platform stops raising and the tilt
alarm will sound at 180 beeps per minute.
Result: The platform does not stop raising and
the tilt alarm does not sound. The level sensor
must be replaced. Repeat this procedure
beginning with step 9.
For reference only, the output of
the level sensor should be
approximately 1.5V DC. To
confirm, connect the positive lead
of a multimeter to the blue wire at
the level sensor, and the negative
lead to the black wire.
50 Lower the platform to the stowed position.
51 Raise the machine slightly.
52 Remove the blocks from under both wheels.
53 Lower the machine and remove the jack.
4 - 60
54 Center a lifting jack under the drive chassis at
the non-steer end of the machine.
55 Raise the machine approximately
6 inches / 15 cm.
56 Models with RT tires: Place a
4.08 x 10 x 10 inch / 10.36 x 25 x 25 cm thick
steel block under both wheels at the ground
controls side of the machine
Models with flotation tires: Place a
4.58 x 10 x 10 inch / 11.63 x 25 x 25 cm thick
steel block under both wheels at the ground
controls side of the machine..
57 Lower the machine onto the blocks.
58 Raise the platform approximately 16 feet / 5 m.
Result: The platform stops raising and the tilt
alarm will sound at 180 beeps per minute.
Result: The platform does not stop raising and
the tilt alarm does not sound. The level sensor
must be replaced. Repeat this procedure
beginning with step 9.
For reference only, the output of
the level sensor should be
approximately 3.4V DC. To
confirm, connect the positive lead
of a multimeter to the blue wire at
the level sensor, and the negative
lead to the black wire.
59 Lower the platform to the stowed position.
60 Raise the machine slightly.
61 Remove the blocks from under both wheels.
62 Lower the machine and remove the jack.
63 Turn the key switch to the off position.
GS-3384
September 2005
REV C
Part No. 82259