Section 4 • Repair Procedures
REV A
September 2016
Part No. 227123 GRC 4 - 11
GROUND CONTROLS
21 Raise the platform approximately 1 foot / 30 cm.
Result: The platform should stop and an alarm
should sound.
Result: The platform does not stop or the level
sensor alarm does not sound. Adjust the level
sensor until the alarm just begins to sound OR
the down limit switch may need to be adjusted.
22 Lower the platform to the stowed position.
23 Raise the machine slightly.
24 Remove the blocks from under both wheels.
25 Lower the machine and remove the jack.
26 Center a lifting jack under the drive chassis at
the steer end of the machine.
27 Raise the machine approximately
2 inches / 5 cm.
28 Place a 2.18 x 6 x 6 inch / 5.54 x 15 x 15 cm
thick steel block under both wheels at the steer
end of the machine.
29 Lower the machine onto the blocks.
30 Raise the platform approximately 1 foot / 30 cm.
Result: The level sensor alarm should not
sound.
Result: The level sensor alarm does sound. The
level sensor is faulty and must be replaced.
Repeat this procedure beginning with step 1.
31 Raise the machine slightly.
32 Remove the blocks from under both wheels.
33 Lower the machine and remove the jack.
34 Center a lifting jack under the drive chassis at
the non-steer end of the machine.
35 Raise the machine approximately
2 inches / 5 cm.
36 Place a 2.4 x 6 x 6 inch / 6.1 x 15 x 15 cm thick
steel block under both wheels at the non-steer
end of the machine.
37 Raise the platform approximately 1 foot / 30 cm.
Result: The platform should stop and an alarm
should sound.
Result: The platform does not stop or the level
sensor alarm does not sound. The level sensor
is faulty and must be replaced. Repeat this
procedure beginning with step 1.
38 Lower the platform to the stowed position.
39 Raise the machine slightly.
40 Remove the blocks from under both wheels.
41 Lower the machine and remove the jack.
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