JLG 600SC_660SJC Operator Manual - Manual (Page 25)

SECTION 2 - USER RESPONSIBILITIES, MACHINE PREPARATION, AND INSPECTION
3121156 – JLG Lift – 2-5
IF THE MACHINE DOES NOT OPERATE PROPERLY, TURN OFF THE
MACHINE IMMEDIATELY! REPORT THE PROBLEM TO THE PROPER
MAINTENANCE PERSONNEL. DO NOT OPERATE THE MACHINE UNTIL IT
IS DECLARED SAFE FOR OPERATION.
Daily Functional Check
A functional check of all systems should be performed, once
the walk-around inspection is complete, in an area free of
overhead and ground level obstructions. First, using the
ground controls, check all functions controlled by the ground
controls. Next, using the platform controls, check all func-
tions controlled by the platform controls.
TO AVOID SERIOUS INJURY, DO NOT OPERATE MACHINE IF ANY CON-
TROL LEVERS OR TOGGLE SWITCHES CONTROLLING PLATFORM
MOVEMENTS DO NOT RETURN TO THE OFF OR NEUTRAL POSITION
WHEN RELEASED.
TO AVOID 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.
NOTE: Perform checks from ground controls first, then from plat-
form controls.
1. Operate machine from ground control.
NOTE: For adjustments see Service Manual, Limit Switch Adjust-
ments.
2. Check elevation limit switch as follows:
While driving in high drive, elevate the boom to approxi-
mately 10 degrees. Drive should cut back to low speed.
The switch should reset when the boom is fully lowered.
3. Check capacity limit switch as follows:
a. Boom Length Switch.
Raise boom to horizontal. Telescope boom out until
500 lb. light comes on. Make sure the switch resets
and the 1000 lb. light comes back on when tele-
scoping in.
b. Boom Angle Switch.
Telescope boom to full extension.
Lift boom up until 1000 lb. light comes on.
Lift boom down using auxiliary power until 500 lb.