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Kohler — FR Activator Replacement

Repair & overhaul

From a Kohler service manual covering: CSG-649, Cummins 4B, Cummins 6B, Ford CSG-649, Ford LSG-423, Ford LSG-875, LSG-423, lsg-875. Check it applies to your exact model before use.

Applies to: Ford CSG-649, Cummins/Onan LSG-423, Cummins/Onan lsg-875

Before you start

  • Do not reverse leads E and C. Ceiling voltage will result, causing equipment damage and possible personal injury.
  • Overtightening FR Activator screws can cause activator failure.
  • Do not bend C and E terminals on FR Activator.

Procedure

  1. Apply a thin coating of thermal compound to back of activator before mounting.
  2. Using new washers, install washers so the convex side is against socket cap screwhead.
  3. Tighten FR Activator mounting screws to 20-26 in. lbs. (2.8-2.8 Nm) or only as necessary to compress washers.
  4. Connect leads to FR Activator; tighten A and F terminal screws to 20-25 in. lbs. (2.3-2.8 Nm).
  5. Secure leads with tie cable; leads rotate with rotor shaft and must be secured.

Specs & values

Full service-parts list: Ford CSG-649 →, Cummins/Onan lsg-875 →

Source: Kohler service 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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