7.6.9. Check of a thread of heating of back glass
Establish the ignition switch in the situation ON.
Include a heater of back glass.
|Fig. 7.90. Check of a thread of heating of back glass
The contact of a thread of heating of back glass shchupy a tester can lead to thread damage. Wrap up an aluminum foil round the end щупа and check a thread, concerning it a foil (fig. 7.90);
|Fig. 7.91. Connection щупа a tester by the thread ends
Connect positive щуп a tester by the positive end of each thread, and negative щуп to mass of a body (fig. 7.91)
Moving positive щуп from the positive end of a thread to negative be convinced that tension decreases respectively.
If tension changes quickly, the thread is faulty. Repair a thread.