Service Manual
Remote Control Cable/Radio
559
An LED indicates to the machine operator that the
battery needs to be changed. If the battery is not
changed in approximately 30 minutes, the moni
-
toring circuit blocks the transmitter.
The “coding electronics” converts every switch
operation into an unmistakable transmit signal
which is combined with a special identification
code before being sent by the transmitter.
As is known from the cable remote control system,
the boom speed with PROPORTIONAL CON
-
TROL is dependent on the excursion of the control
lever:
Short excursion = low speed
Long excursion = high speed
By a precise graduation of the ranges of adjust-
ment, the speed is almost continuously variable.
With the respective actuation of the control levers,
several movements can be made simultaneously.
Receiver
The receiver is mounted in the driver’s cabin and is
powered by the truck voltage. The hydraulic com
-
ponent (pilot control) is connected by cable to the
machine control panel via the socket provided.
NOTE: ONLY connect the receiver of the PRO-
PORTIONAL CONTROL to 24 V on-board volt-
ages with negative pole connected to the chassis
(negative to ground). The BLACK-AND-WHITE
CONTROL receiver can be connected to 24 V on-
board voltages with negative to ground or, AFTER
SPECIFIC READJUSTMENTS, to 12 V systems,
or AT ZERO POTENTIAL to systems with posi
-
tive to ground.
NOTE! INCORRECT VOLTAGE, SHORT-CIR-
CUIT, AND OVERLOAD destroy the electronics.
For warranty reasons, we advise against installing
the system by yourself.
The “radio telegram” emitted by the transmitter is
detected and monitored by the receiver. If the
receiver electronics recognizes the “radio tele
-
gram” as correct and complete, the signal is sent to
the connected machine pilot control.
The transmitter and receiver are precisely tuned to
each other. An external transmitter cannot affect
operation because different information (e.g.
equipment no.) belongs to the contents of each
radio telegram, and this is checked by the receiver.
In the event of an electronic fault or loss of tele-
gram, the previous functions initiated are stopped.
The two-colour LED indicates the state of the
receiver electronics: “FAULT”, “READY”,
“OPERATING.” A storage rack incorporating the
recharge electronics for one transmitter battery is
mounted in the receiver housing.
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