Kohler — Microswitch Replacement (100/150/200 Amp Single-Phase Models)
Repair & overhaul
From a Kohler service manual — check it applies to your exact model before use.
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Before you start
- Electrostatic discharge damage. Use an approved grounding wrist strap.
Procedure
- To replace the microswitch at the Normal source coil, first move the contactor to the Emergency source position (and vice versa).
- 100 Amp models: loosen the four coil mounting screws by two full rotations without removing the coils.
- Remove the microswitch mounting screw and microswitch.
- Install the new microswitch; push the mounting screw in the direction of the arrow and tighten to 0.44 Nm (4 in. lb.).
- 150/200 Amp models: remove the microswitch mounting screw and microswitch, install the new one, and tighten to 0.44 Nm (4 in. lb.).
Tools required
- Basic electrician's hand tools
- Torque screwdriver Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Microswitch mounting screw torque 0.44 Nm (4 in. lb.)
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.