JLG 20VP (3120727) Operator Manual - Manual (Page 25)

SECTION 3 - USER RESPONSIBILITIES & MACHINE CONTROLS
3120751 – JLG Lift – 3-3
lower the platform. This valve must be closed
(turned all the way clockwise) for normal operation
of the machine. (Refer to Section 6 for Emergency
Descent operating procedures.)
6. HYDRAULIC OIL RESERVOIR
The hydraulic oil reservoir is housed inside the lower
access hole in the rear cover. Check the hydraulic oil
level visually by observing the oil level in the reser-
voir as compared to the FILL TO LINE indicator on
the side of the reservoir. Hydraulic oil can be added
if necessary through the OIL FILL CAP on top of the
reservoir. DO NOT OVERFILL.
NOTE: Always check hydraulic oil level with oil at operating
temperature and with the platform completely low-
ered.
7. ELECTRICAL CIRCUIT BREAKER PANEL & FUSE
(20VP w/UL-EE OPTION ONLY)
20VP machines with the UL-EE option include a cir-
cuit breaker panel with five push button type reset
circuit breakers, (two-5 amp and three-1 amp). The
two (5 amp) breakers add protection on the pump
valve and key switch circuits. The three (1 amp)
breakers add protection to the motion alarm, tilt
alarm, and optional beacon circuits. Also an 80 amp
fuse is mounted near the breaker panel for added
protection on the pump motor circuit. These items
are located under the rear cover on top of the mast
support bracket.
Platform Controller
(See Figure 3-2. & 3-3.)
The platform controller contains all the controls necessary
to operate the lift from the platform.
The following is a description of each function.
1. BATTERY VOLTAGE/FAULT CODE LED INDICA-
TORS.
The LED strip (green when lit) running between the
pad buttons on the controller pad indicates the bat-
tery voltage level when the machine is powered-up.
The graduated LED strip indicates batteries at FULL
CHARGE (25 volts) when lit all the way to the top (F),
and a LOW CHARGE (18 volts) at bottom (E) when
one or two LEDs are illuminated.
NOTE: When voltage drops below 16.5 volts an error code
is indicated, and the batteries will require a recharge.
This LED strip also acts as a fault code indicator to
help diagnose problems with the machines’ electri-
cal system. (See Service Manual Troubleshooting,
for information about reading fault codes).
2. FUNCTION ENABLE SWITCH ( OLD STYLE) (Fig. 3-2)
This switch must be pressed before any of the plat-
form or joystick drive functions can be operated.
Once activated, the operator has approximately
three seconds to activate any of the control func-
tions.
Figure 3-1. Ground Controls.