Preparation For The Test; Connections To The Vehicle - tecnotest 138-E Manuel D'utilisation

__________________________________________________________________________ TIMING LIGHT
3.0 -

PREPARATION FOR THE TEST

3.1 -

Connections to the vehicle

•
Connect the DWELL wire to the coil negative pole (36) by using the
special clamp (15).
•
Connect the induction clamp (17) to the plug wire of 1° cylinder (35) making
sure that the arrow on the induction clamp is turned to the plug.
•
Connect the red clamp (14) of the supply cable and the red clamp (16) of the
volt cable to the battery positive pole (33).
•
Connect the black clamp (13) of the supply cable to the battery negative
pole (34).
ATTENTION:
The timing light functions only with a 12 Volt voltage which, under ordinary
conditions, is supplied by the car to be examined.
In case of operation on vehicles having a different voltage, supply the instrument
through an external battery (so as to have a constant 12 Volt voltage) and remember to
connect the battery negative pole to the car chassis.
ATTENTION:
A possible polarity inversion in the connection between clamps and battery
does not allow the instrument functioning but does not damage it.
OPERATING INSTRUCTIONS 33