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6.2.
24V VEHICLES - DETECTION OF 24V
6.2.1.
Detection of 24 volt on a vehicle where the cables are not visible or where the batteries are located on both sides of the engine bay
(large types of engines), is as follows, fig.9.
6.2.1.1.
Use a voltmeter in position DC: connect the negative to the chassis of the vehicle and the positive to the positive post of a battery.
6.2.1.2.
If the voltmeter indicates 12V, you are NOT connected on the right battery.
6.2.1.3.
If the voltmeter meter indicates 24V the correct battery has been selected, fig.10 and 10A. Connect the cargo booster clamps to the
same points, observing correct polarity.
Batteries side by side
Batteries located on both sides of the vehicle
6.3.
REVERSE POLARITY
6.3.1.
If the polarity is reversed, the buzzer will give a warning signal under the following conditions:
- if the remaining voltage in the batteries of the vehicle, is at least 4v.
- if the voltage connector is not connected.
6.4.
STARTING ATTEMPTS
DO NOT crank for more than 3-8 seconds, wait for a further 1 minute before making a second attempt.
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The reasons are:
1. To allow the voltage of the Roadstart to build up again.
2. To allow gasses inside the batteries to disperse.
3. To allow the batteries to cool down.
NOTE: If you do not wait and /or the starting attempt is too long, you risk losing power, performance is reduced by the second attempt
and there is a risk of the fuse melting (blowing).
If after 3 attempts the engine does not start, if may be necessary to identify a further cause of the breakdown.
NOTE: if the Roadstart is fully charged and the starter turns slowly, the vehicle's battery or that of the Roadstart, may need to be
inspected for a short circuit.
6.5.
Never connect the Roadstart to a battery or a starter motor which is in short circuit.
6.6.
Never disconnect the Roadstart whilst running the engine when there is no battery in the vehicle or when the vehicle's battery is at 0
volt. This may cause failure of the diodes in the alternator.
6.7.
Never connect the Roadstart in short circuit, for example:
1. By connecting the red clamp (+) to the negative terminal of the battery and black clamp (-) to the vehicle's chassis, fig.11.
THE REVERSE POLARITY SIGNAL WILL NOT OPERATE BECAUSE THIS IS NOT A REVERSE POLARITY.
© Jack Sealey Limited
9
fig.10A
9
Original Language Version
fig.10
fig.11
8
PBIW4600, PBIW6200 | Issue:2 (6) 04/11/19
fig.9
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