Posted to Educators Forum on 3/24/2013
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Hello Sonny: Since you asked for my thoughts here they are.
Why not test the student in the job he must perform when the
relay circuit is on the vehicle? His job will require he
troubleshoot a relay circuit problem (already assembled) but
with an electrical problems already present. The relay
circuit doesn't have to be on a vehicle to teach him how to
troubleshoot the relay circuiit. You can use a complete
relay circuit such as our Relay Troubleshooting Trainer,
H-115, http://www.veejer.com/relay.html. Or you can create your own.
When a tech encounters a relay circuit problem on a vehicle
the circuit is fully assembled but does not work. Give him 2
minutes to determine why the relay circuit is not operating
properly. Doesn't it make more sense to troubleshoot a relay
circuit that building one? Asking him to build a circuit has
some value in understanding relay operation but not much
help in understanding how a relay circuit fails and how to
find the problem with a DMM. Isn't that what he must do when
in the shop making a living?
I call this electrical troubleshooting training and believe
not enough attention is given to troubleshooting training
simply because many teachers do not understand systematic
electrical troubleshooting. Hope this helps.
Vince Fischelli Educator/Instructor/Technical Writer Veejer Enterprises Garland, Texas, USA
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