Checking Generator Capacitors - WACKER Group LTC 4 Repair Manual

Electrical Troubleshooting Procedures

7.25 Checking Generator Capacitors

See Graphic: wc_gr002170
7.25.1 With the unit off, remove the screws securing the protective cover and
7.25.2 Remove the leads from the capacitor and discharge it by placing the
7.25.3 Using a multimeter set to the Farad (F) or capacitance (C) scale (200
wc_tx000429gb.fm
Carry out this procedure with the engine shut down.
The capacitors of the electrical system are mounted to the top of the
generator underneath the protective cover (a).
remove the cover.
blade of an insulated screwdriver across the two spades of the
capacitor.
µF), measure the capacitor's capacitance. On systems with dual
capacitors, each capacitor should measure 18±2 µF. If the reading is
not within this range, replace the capacitor. Also see Alternative
Capacitor Check.
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LTC Repair