Alpha Technologies AlphaGen 3.5_5.0kW Kohler COM5 - Manual (Page 46)

TP-6482 8/06 46 Section 5 Component Testing and Adjustment
Use a feeler gauge to check gap between ignition trigger
coil and flywheel. See Figure 5-14 and Figure 5-15.
Verify that the gap is set to 1.02 mm (0.040 in.).
1. Ignition trigger
1
TP6092
Figure 5-14 Ignition Trigger
1. Ignition trigger
1
TP6092
Figure 5-15 Ignition Trigger Adjustment
5.5.2 Ignition Module
Use an ohmmeter to measure the resistances across
the ignition module terminals.
See Figure 5-16 and
Figure 5-17. The ignition module part number is
stamped on the back of the module. If the measured
resistances do not match those shown in Figure 5-17,
replace the module.
Note: The ignition module must be matched with the
appropriate trigger coil. See Section 5.5.1 for
information.
GM14140B-V
2
1. Ground connection
2. Ignition module
3. Ignition coil
3
1
Figure 5-16 Ignition Components
Terminals Ohmmeter Indication
Part Number 278903
W--G 10 kOhms
B--Ground 850 ohms
C--Ground Diode check: Open circuit in one direction,
approximately 2.7 mOhms with the test leads
reversed.
Part Number GM23591
W--G 450 Ohms
B--Ground 850 ohms
C--Ground Diode check: Open circuit in one direction,
approximately 2.7 mOhms with the test leads
reversed.
Figure 5-17 Ignition Module Resistances
Apply a thin coating of thermal compound between the
mounting pad and the module to ensure good heat
transfer. Connect the ground wire to the system ground.