Repair manual

GP Repair Troubleshooting
wc_tx000548gb.fm 71
4.17 Checking AVR’s Sensing Wires
There are two sensing wires feeding the Automatic Voltage Regulator
(AVR), one attached to each of the main windings. If the sensing wires
are shorted or broken, the AVR will not perform correctly. To check the
continuity of the sensing wires, carry out the following procedures:
4.17.1 Stop the engine.
4.17.2 Remove the two screws which secure the end cover to the generator
and remove the end cover.
4.17.3 Disconnect the yellow-, red-, black-, and green-marked wires from the
generator terminal strip (h).
4.17.4 The first sensing wire, represented by the brown wire on the electrical
schematic, is internal to the stator. The AVR connects to this wire at
the connection point at the upper portion of the stator. Access the wire
by disconnecting the plug (a).
4.17.5 To check the first sensing wire, check for continuity between the
connection point (b) where the brown wire from the AVR plug connects
and main winding 2 at the terminal strip (c) where the red-marked wire
usually connects. There should be continuity.