TELELIFT 3713 SX
TECHNICAL SPECIFICATIONS
9
Document 57.4402.9200 - 1
st
Edition 10/2006
INDEX
. ARB-I SYSTEM
1.
INTRODUCTION
This technical card describes the procedures for
installing, calibrating and troubleshooting the ARB-I
Overload Warning System.
The manual is meant for trained and qualified personnel:
Terexlift
technicians or technicians from authorised
Terexlift
service centers.
Since the Overload Warning System is a device of
maximum importance for the safety of machine and
personnel, any intervention in contrast with the
procedures or guidelines contained herein is strictly
forbidden.
Circulation of this card is reserved to authorised
Terexlift
service centers and their employees. Reproduction or
disclosure of this technical card or of the information
contained herein is a violation of agreements.
Additional copies of this manual can be ordered to
Terexlift
.
.
SYSTEM OVERVIEW
The ARB-I Overload Warning System includes:
•
a load cell, placed on the rear axle of the machine
•
a main module
•
a display
The main module
A
(Fig.1) contains the electronics and
the trimmers for calibrating the system. The 8-pin screw
connector
B
connects the main module to the electric
system of the machine and to the load cell. The display
D
is connected to the main module
A
by a flat cable
C
.
The connector on the end of the flat cable can be inserted
in the display in one way only.
The display (Fig. 2) indicates the stability of the machine
by means of a five-LED (Light Emitting Diode) bar graph:
three are green (LED1, LED2, LED3), one yellow (LED4)
and one red (LED5). LED1 is always on, therefore
indicating presence of the supply voltage. On the right
of the display a yellow “
S
” (LED6) lights when both
stabilisers are lowered (if fitted on the machine). The
alarm buzzer is contained inside the display. Behind the
display is located the plug for connecting to the main
module.
An external relay, connected to the alarm output, controls
the solenoid valve that locks out the extension and
descent movements of the boom, which would decrease
the stability of the machine.
SPARE PARTS
Part#
Description
637275
637276
main module (A-B-C)
display (D)
A
C
B
A
D
Fig. 1
LED 5
LED 4
LED 3
LED 6
LED 1
LED 2
Fig. 2
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