Technical information

TS ENGINES (ELECTRIC START)
Electrical fault finding
When an electric start engine is fitted the
charging system built into the engine
provides the electrical power to operate
the dragline solenoid valve.
Power is taken from terminal 2 on the
ignition switch, through two core cable via
a plug and socket through the shovel
mounted operating button/switch, back
through the plug and socket down to the
dragline 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 Ignition Switch in the "Off" position.
3 Dirty or loose electrical connections at
the plug and socket, the solenoid valve,
ignition switch or battery.
4 Flat battery.
5 Charging system failure (See Engine
Workshop Manual).
6 Bad Earth Connections.
Voltage Setting Instructions
It is not possible to adjust the voltage
setting but the voltage can be measured
at the terminal block on the solenoid
valve.
Remove the terminal block, connect a
D.C.. voltmeter to the terminal block and
start the engine. Depress the shovel
mounted button/switch and note the
voltage reading. It should not exceed 14.5
volts. If the voltmeter indicates a negative
reading or reads in the reverse direction
interchange the voltmeter leads.
SERVICING 3.19