Technical information

DRAGLINE ELECTRICAL SYSTEM
Hand start engines and 415 volt electric
motor driven mixers:
From serial numbers:
0843 for 300R & 400R
0313 for 500R
Power for the dragline on later machines
is provided by a 12 volt automotive
alternator and battery. The charging state
is indicated by a warning light. An isolator
switch is fitted to turn the system ON or
OFF.
Do not start the engine or
motor unless the battery is
connected and the isolator
switch is turned ON.
Power is drawn from the alternator and
battery through the shovel mounted
operating switch, back through the plug
and solenoid valve. (See wiring diagram
below.)
The most common causes of electrical
failure are:
1 Break in the two core cable between
the shovel mounted button/switch and
the socket and plug mounted below the
winch motor. (If the cable is shortened
do not reduce the length to less than
19.8 metres, 65 feet.)
2 Isolator switch is in the OFF position.
3 Dirty or loose electrical connections at
the plug and socket, the solenoid valve,
isolator switch or battery.
4 Flat battery.
5 Incorrectly adjusted drive belt.
6 Bad Earth connection.
7 Warning Light has blown.
Voltage Setting Instructions
It is not possible to adjust the voltage
setting but the voltage can be measured
SERVICING 3.22A