JLG 15/20MSP Operator Manual - Manual (Page 25)

SECTION 2 - PREPARATION AND INSPECTION
3121230 – JLG Lift – 2-7
2.5 Function Check
Once the “Walk-Around” Inspection is complete, perform a func-
tion check of all systems in an area free of overhead and ground
level obstructions. Refer to Section 3 for more specific operating
instructions.
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.
Perform a Function Check as follows:
1. From the ground controls with no load in the plat-
form:
a. Operate ground control functions, platform lift up
and lift down.
b. Ensure Pot-Hole-Protection device is fully engaged
(bars down on sides) when the platform is elevated
(See Figure 2-2.).
c. Ensure that all machine functions are disabled
when the Emergency Stop Button is activated.
d. Check Manual Descent Control valve is operating
properly.
2. From the platform control console:
a. Ensure that the control console is properly mounted
and secure.
b. Raise and lower platform 2 ft. to 3 ft. (.61m to .92 m)
several times. Check for smooth elevation and low-
ering of platform.
c. Operate all functions, check all limit, cut-out, and
enable switches are functioning properly:
• Machine Brakes - Drive the machine on a
grade, (do not exceed the rated gradability),
and stop to ensure the brakes hold.
• Tilt Warning Limit - With the platform com-
pletely lowered, drive the machine onto a sur-
face with a tilt of more than 1.5° in any direction
(do not exceed rated gradability). The
Figure 2-2. Pot-Hole-Protection Bars Lowered.