JLG X23J - X700AJ Service Manual - Manual (Page 555)

SECTION 7 - BASIC ELECTRICAL INFORMATION & SCHEMATICS
7-2 – JLG Lift – 3121448
7.2 A - HOW TO READ THE WIRING
DIAGRAMS
The wiring diagram is shown divided by individual applica-
tion, in order to an easier and faster reading.
Some considerations are valid for all machines, unless
otherwise specified. Specifically, the following should be
remembered:
• Each component is identified by a code; the
meaning of this code is shown in the key.
• Each component describes only the identification
of the connector used and the pins corresponding
to the application in question. The wiring references
are shown on the outside of the connector.
• Each cable describes the color or the identifier
number. When no color is indicated, the cable is
black. Where the number is used, are shown two
digits: the first identifies the wire and is also marked
on the wire itself, the second identifies the number of
wires in the cable (e.g.: 14/18=wire number 14 in an
18-wire cable).
• The Y/G or Y-G(= yellow and green) wires are
always earth wires. The general earth connectors
are located in the control panel, in the control board
box and in the main power supply box.
• The simplest electronic schedules are always
shown with a dashed perimeter. To make the system
easier to understand, the wiring diagram is also
shown inside these electronic schedule.
• The underlined letters show in what pages it is
possible to find the same pin or connector
• The location of the connectors and the pins in the
electronic schedules is shown in section “S”.
• The location of the electrical components is shown
in section “T”.
COLOUR CODES
B = BLACK
BL = BLUE
BR = BROWN
G = GREEN
GR = GREY
OR = ORANGE
R = RED
W = WHITE
Y = YELLOW