Service Training
Section 4.9
Page 45
12.05
- Draw out the high-voltage transmission line terminal 4 from the ignition distributor and earth it with an
emergency cable.
- Plug two electric cables into the sockets of the two-pin plug of the induction transmitter, and tap the plus
and minus sides of a 1.5 volt battery with their ends. For each tap a spark should be produced on cable
4. Change the polarity in the battery if necessary.
NOTE: If no spark appears, the cable connection from the plug to switchgear terminal 4 and terminal
5 is to be inspected and, if necessary, corrected. If there is still no spark formation, the
switchgear is defective.
Induction transmitter
Test conditions
- TSZ switchgear in order
- Ignition coil in order.
- Lines between switchgear and ignition distributor in order.
Testing
- Remove the plug of the TSZ switchgear and take a measurement of the resistance between terminals
5 and 6 of the plug.
Target value: 450 – 1000 Ω depending on air gap between stator and rotor arms.
- Switch meter to a.c. voltage and to the millivolt measuring range.
- Connect test prods of meter with sockets 5 and 6 of the switchgear plug.
- Turn the engine with starter motor and read off voltage on meter.
Target value: 300 – 700 mV, depending on starting speed.
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