JLG 800A_AJ Operator Manual - Manual (Page 35)

SECTION 2 - USER RESPONSIBILITIES, MACHINE PREPARATION, AND INSPECTION
3121209 – JLG Lift – 2-15
e. Attempt to lower the tower base boom while the
tower fly boom is extended. The tower base boom
should not lower and the red boom malfunction
light should illuminate when pressing the tower
down switch.
DISCONTINUE OPERATION IF THE TOWER BASE BOOM LOWERS OR
THE BOOM MALFUNCTION LIGHT DOES NOT ILLUMINATE.
f. Check that all machine functions are disabled when
the Emergency Stop Button is pushed in.
g. Check for proper operation of the auxiliary power
and manual descent system (if equipped). Operate
each function control to ensure proper operation.
From the Platform Control Station:
1. Check that the control console is secure and all guards
protecting the function switches or locks are in place.
Ensure that all function controls and switches return to
the "off" or neutral position when released.
DO NOT OPERATE MACHINE IF GUARDS OR LOCKS ARE MISSING OR
THE SWITCHES DO NOT RETURN TO THE "OFF" OR NEUTRAL POSI-
TION
2. Check the footswitch adjustment and operation as fol-
lows:
a. With engine power shut down, attempt to start
engine. Engine should not attempt to start when
footswitch is activated.
b. Start engine. Activate hydraulic system by depress-
ing footswitch. Activate a boom function. Continue
to activate the function and remove foot from foot-
switch. The motion should stop.
DISCONTINUE OPERATION IF THE FOOTSWITCH DOES NOT OPERATE
PROPERLY.
c. Check adjustment of footswitch. Footswitch must
be adjusted so that functions will operate when
pedal is approximately at its center of travel. If the
footswitch operates within last 1/4" of travel, top or
bottom, it should be adjusted.