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Westerbeke — Flash Generator Fields

Repair & overhaul · Generator field circuit

From a Westerbeke operator's manual covering: 12.5, 7.5, 7.7KW. Check it applies to your exact model before use.

Applies to: Westerbeke 12.5

Before you start

  • Do not connect to AC terminals; this will destroy the rectifier.

Procedure

  1. Stop engine and remove generator end cover.
  2. Locate field coil positive lead connected to + terminal of rectifier and negative lead to opposite unmarked terminal.
  3. Using alligator clips, connect field coil positive to battery positive and field coil negative to battery negative for approximately 10 seconds.
  4. Set will then build voltage and output.

Tools required

Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.

Specs & values

  • Use 6 or 12 volt battery
  • Connect for approximately 10 seconds

Full service-parts list: Westerbeke 12.5 →

Source: Westerbeke operator's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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