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Mount the needed number of probe heads on
the car and plug their 3.5mm input jacks into
the six-way amplifier's sockets.
Connect your headphones with the amplifier.
Activation
You can switch on the stethoscope on its left
side. Turn the volume control knob forwards
(there is a slight resistance) until the red LED
lights up.
Now you can dial in the desired testing volume
by turning the control knob.
Test drive
(Ex.: screaking noise from the front right axle)
For this testing procedure you need a second
person.
After mounting the probe heads on various
components of the car, you will now be able to
detect and locate the noise by switching
through all six channels of the amplifier.
A diagnosis is easier if there has been written
down a mapping of channels and probe
heads. Ex.: blue probe head on right
suspension arm yellow probe head on ball
joint green probe head on compression leg
and so on...
Can you hear the screaking noise on one of
the channels? Then write down the channel
number/probe head color. You can stop test
driving.
Evaluation (using the example)
Could the noise be heard on channel 2
(yellow) only, ball joint is malfunctioning.
SW-Stahl und Werkzeugvertriebs GmbH
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