JLG 15VPSP Operator Manual - Manual (Page 20)

SECTION 2 - PREPARATION AND INSPECTION
2-4 – JLG Lift – 3120796
1m) several times. Check for smooth elevation and
lowering of platform.
2. With platform completely lowered, check hydraulic
oil level in hydraulic fluid reservoir. If necessary, add
hydraulic fluid to proper level (full line). NEVER USE
HYDRAULIC BRAKE FLUID, refer to the Lubrication
Chart (Figure 2-4) for specific requirements.
3. Depress EMERGENCY STOP (red) button (next to
key switch), all machine operations will be disabled
if functioning properly. If ok, reset EMERGENCY
STOP for normal operation.
4. Operate the MANUAL BRAKE RELEASE CONTROL
(Over-center handle mounted on the right side of the
mast). When the handle is in the vertical position it is
set for normal operation, brakes ENGAGED. When
the handle is pulled DOWN to a horizontal position,
the brakes are DISENGAGED.
5. Set key switch to PLAT (platform operation, all the
way counterclockwise) and continue with the follow-
ing steps.
Platform Controls Function Check
IMPORTANT
SEE SECTION-3 FOR INFORMATION ABOUT MACHINE CON-
TROLS AND SECTION-4 FOR PROPER OPERATION OF MACHINE.
NOTE: Check that the MANUAL BRAKE RELEASE CON-
TROL (Over-center handle mounted on side of
mast), is set for normal operation (brakes engaged)
before entering platform.
1. Check that the PLATFORM CONTROLLER box is
properly mounted (facing forward) and secure on
the platform’s rail.
2. RESET the EMERGENCY STOP (red) button on the
platform controller, if necessary.
3. On the platform controller box, check the BATTERY
STATUS INDICATOR LED’s for charge status of bat-
teries.
4. Depress and HOLD the JOYSTICK DRIVE BUTTON
(located on top of the joystick knob) and slowly
move the JOYSTICK in all directions. If operating
properly the machine will move in the direction the
JOYSTICK is pointed.
5. While driving the machine forward (platform down),
rotate the SPEED CONTROL knob from maximum to
minimum (clockwise to counterclockwise) check-
ing operation. If operating properly, speed will vary
from 2 mph to 1/2 mph.
6. Depress and HOLD the LIFT ENABLE pad switch,
and operate the platform UP and DOWN pad
switches (up arrow and down arrows) to raise and
lower platform 2 ft. to 3 ft. (.5m to 1m) several times.
If operating properly the platform will elevate/lower
until either button is released. Check for smooth ele-
vation and lowering of platform.
NOTE: A short delay between lift motor starting and platform
movement is normal.
7. With the platform elevated check the JLG Automatic
Pot-Hole-Protection system, if operating properly,
the PHP bars on each side of the machine base will
be automatically engaged (lowered) when the plat-
form is raised approximately 2 ft. (.5 m).
8. With the platform still elevated approximately 2 ft.,
drive machine and check if SPEED CUT-BACK is
operating properly. The machine should drive at one
fourth (1/4) the speed of when the platform was low-
ered.
9. Depress the EMERGENCY STOP (red) button on the
Platform Controller box, all machine operations will
be disabled if functioning properly. RESET the
EMERGENCY STOP.
Tilt Sensor (1.5°) and Drive Brakes
1. With the platform lowered, drive the machine onto a
grade within the allowable grade and slope limits of
the machine (maximum grade of 15% or 8.5°, maxi-
mum side slope of 5°). Stop the machine part of the
way up the grade, check if the drive brakes hold the
machine in place. Also while on the grade (of greater
than 1.5°), attempt to raise the platform. The tilt sen-
sor (1.5°) must prevent the platform from elevating
and will sound a beeping alarm at the platform con-
troller box.
If all machine functions are operating properly, machine is
ready for operation.
2.6 TORQUE REQUIREMENTS
The Torque Chart, Figure 2-6., consists of standard torque
values based on bolt diameter and grade, it also specifies
dry and wet torque values in accordance with recom-
mended shop practices. This chart is provided as an aid
to the user/operator in the event he/she notices a condi-
tion that requires prompt attention during the walk-around
inspection or during operation until the proper service per-
sonnel can be notified. Utilizing this Torque Chart in con-
junction with the Preventive Maintenance and Inspection
Schedule table in the Service Manual, will enhance the
safety, reliability, and performance of the machine.