Kohler — FR Activator Replacement (Standard)
Repair & overhaul
From a Kohler service manual — check it applies to your exact model before use.
Browse Kohler generators & specs →
Before you start
- HIGH VOLTAGE! Do not reverse FR activator leads E and C. Ceiling voltage will result causing equipment damage and possible personal injury.
- FR ACTIVATOR DAMAGE! Overtightening FR activator screws can cause activator failure. Do not exceed maximum torque settings.
Procedure
- See “End Bracket Removal and Replacement.”
- Observe label markings on the FR activator. Leads F3 and F4 are generator field leads; leads A1 and A2 are exciter armature leads; lead E (black) is emitter; lead C (red) is collector.
- Apply a thin coating of thermal compound to back of activator before mounting.
- Using new washers install washers so the convex side is against socket cap screwhead.
- Tighten FR activator mounting screws to 20-25 in. lbs. (2.3-2.8 Nm) or only as necessary to compress washers.
- Connect leads to FR activator and tighten A and F terminal screws to 20-25 in. lbs. (2.3-2.8 Nm).
- Secure leads with tie cable.
Specs & values
- 20-25 FridayParts $42.95 in. lbs. (2.3-2.8 Nm)
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.