HomeRepair guidesTesting Field Voltage

Compatible — Testing Field Voltage

For these models: HDKAL, HDKAL/HDKAS.

Procedure

  1. Field voltage can be tested at the brush holder terminals with a DC voltmeter.
  2. Test at no load and at full load.
  3. Field voltage should fall between 18 and 60 volts.

Tools required

  • DC voltmeter

Specs & torque values

  • 18 to 60 volts

Source: manual:981-0523B_Onan_HDKAL_HDKAQ_HDKAR_HDKAS_Diesel_Mobile_Genset_Generator__Controls_Service_manual.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.