4.7.
TESTING TRAILER LAMPS AND CONNECTIONS FIG.6
4.7.1.
Connect the unit to a good battery.
4.7.2.
Clip the clip of the auxiliary ground lead to the trailer ground.
4.7.3.
Probe the contacts at the jack while pressing the rock switch’s front part (“ - “).
4.7.4.
This lets you check the operation and orientation of the trailer lamps.
4.8.
ACTIVATING ELECTRICAL COMPONENTS
4.8.1.
Activating components with po) voltage fig.7
Contact the probe tip to the positive terminal of the component, the test indicator should light GREEN.
Whilst monitoring the green indicator, quickly press and release the rock switch’s front part (“ - “ ). If the green indicator changed
instantly from GREEN to RED, proceed with further activation. If the green indicator went off at that instant, the unit has been
overloaded. This could happen for the following reasons:
1. The tip’s contact is a direct ground.
2. The component is short-circuited.
3. The component is a high current component (i.e. starter motor).
WARNING:
Haphazardly applying voltage to certain circuits can cause damage to a vehicle’s electronic components. Therefore, it is
strongly advised to use the correct schematic and diagnosing procedure while performing test.
4.8.2.
Activating electrical components with negative (-) voltag
e fig.8
Contact the probe tip to the negative terminal of the component, the test indicator should light RED.
Whilst monitoring the red test indicator, quickly press and release the rock switch’s rear part ( “= “ ). If the red test indicator changed
instantly from RED to GREEN, proceed with further activation. If the test indicator went off at that instant, the unit has been
overloaded. This could have happened for the following reasons:
1. The tip’s contact is a direct positive voltage.
2. The component is short-circuited.
3. The component is a high amperage component (i.e. starter motor).
WARNING:
With this function a vehicle’s fuse can be blown or tripped if grounding the contact in series with it.
4.9.
JUMPER LEAD FEATURE FIG.9
4.9.1.
The black battery clip and the auxiliary ground lead are connected directly through the unit. By leaving the red battery clip
disconnected from the vehicle’s battery, the unit can be used as a long jumper lead.
4.9.2.
Be careful to avoid short circuit and overloading when using this jumper function. In this configuration, the leads are not protected by
the unit’s built-in circuit breaker.
Original Language Version
© Jack Sealey Limited
fig.6
fig.7
fig.8
fig.9
PPX.V4 Issue 1 06/06/22
