JLG 600SC_660SJC Operator Manual - Manual (Page 59)

SECTION 4 - MACHINE OPERATION
3120897 – JLG Lift – 4-5
4.8 BOOM
AN ORANGE TILT ALARM WARNING LIGHT, LOCATED ON THE
CONTROL CONSOLE, LIGHTS WHEN THE CHASSIS IS ON A
SLOPE. DO NOT SWING, EXTEND OR RAISE MAIN BOOM ABOVE
HORIZONTAL WHEN LIT.
DO NOT DEPEND ON TILT ALARM AS A LEVEL INDICATOR FOR
THE CHASSIS. TILT ALARM INDICATES CHASSIS IS ON A SLOPE.
CHASSIS MUST BE LEVEL BEFORE SWINGING.
TO AVOID UPSET, IF ORANGE TILT ALARM WARNING LIGHT
LIGHTS WHEN MAIN BOOM IS EXTENDED OR RAISED ABOVE
HORIZONTAL, RETRACT AND LOWER PLATFORM TO NEAR
GROUND LEVEL. THEN REPOSITION MACHINE SO THAT CHAS-
SIS IS LEVEL BEFORE EXTENDING OR RAISING MAIN BOOM.
TRAVELING WITH MAIN BOOM RETRACTED AND BELOW HORI-
ZONTAL IS PERMITTED ON GRADES AND SIDE SLOPES SPECI-
FIED ON CAUTION PLACARD AT PLATFORM.
TO AVOID SERIOUS INJURY, DO NOT OPERATE MACHINERY IF
ANY CONTROL LEVERS OR TOGGLE SWITCHES CONTROLLING
PLATFORM MOVEMENT DO NOT RETURN TO THE OFF OR NEU-
TRAL POSITION WHEN RELEASED.
TO AVOID A COLLISION AND INJURY IF PLATFORM DOES NOT
STOP WHEN A CONTROL SWITCH OR LEVER IS RELEASED,
REMOVE FOOT FROM FOOTSWITCH OR USE EMERGENCY STOP
TO STOP THE MACHINE.
Swinging the Boom
ASSURE THAT TURNTABLE LOCK IS DISENGAGED BEFORE
STARTING ANY SWING OPERATION.
3. Depress footswitch to swing boom, position SWING
control switch or controller to RIGHT or LEFT for
direction desired.
NOTE: When boom functions are being operated there an
interlock prevents the use of DRIVE and STEER
functions.
Raising and Lowering the Main Boom
To raise and lower Main Boom, position MAIN LIFT control
switch or controller to UP OR DOWN and hold until
desired height is reached.
Telescoping the Main Boom
To extend or retract Main Boom, position MAIN TELE-
SCOPE control switch to IN or OUT and hold until platform
reaches desired position.
4.9 SHUT DOWN AND PARK
1. Drive machine to a protected area.
2. Assure main boom is fully retracted and lowered
over rear (Drive) axle; all access panels and doors
closed and secured.
3. Remove all load and allow engine to operate 3-5
minutes at LOW setting to permit reduction of
engine internal temperatures.
4. At Ground Controls, turn KEY SELECT switch to
(center) OFF. Position, POWER/EMERGENCY STOP
switch (down) to OFF. Remove key.
5. Cover Platform Control console to protect instruction
placards, warning decals and operating controls
from hostile environment.