JLG 1230ES Operator Manual - Manual (Page 25)

SECTION 2 - USER RESPONSIBILITIES, MACHINE PREPARATION AND INSPECTION
3121221 – JLG Lift – 2-5
2.4 FUNCTION CHECK
Perform the Function Check as follows:
1. From the Ground Control Panel with no load in the
platform:
a. Check if the platform/off/ground selector switch
and the platform lift-up/lift-down switch operate
properly.
b. Check that Pot-Hole-Protection system operates
properly, platform raised - bars down, platform
down - bars up.
c. Ensure that all machine functions are disabled
when the Emergency Stop Button is depressed.
d. With platform raised a few feet (meters), check if
the manual descent valve (located at the base of
the mast on the front of the machine), lowers the
platform properly.
2. From the Platform Control Console:
a. Ensure that the control console is firmly secured
in the proper location.
b. Check that all guards protecting switches are in
place.
c. Operate all functions, drive/lift mode select
switch, horn button, enable trigger, and joystick
functions to ensure proper operation.
d. With the platform elevated 6 in. (15cm) or more
on a smooth, firm, and level surface, drive the
machine to check if the high drive cutout speed-
limit is engaged. Drive speed will be reduced from
a top speed of 3mph (4.8 kph) to 0.5 mph (0.8
kph)
e. Ensure that all machine functions are disabled
when the Emergency Stop Button depressed.