Kohler — Microswitch Replacement Procedure
Repair & overhaul
From a Kohler service manual — check it applies to your exact model before use.
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Before you start
- Rubber insulating gloves class 0, safety glasses, and electrical hazard safety shoes required.
Procedure
- Prevent all connected generator sets from starting and disconnect power to the transfer switch.
- Open the enclosure and verify zero volts across each phase.
- Note the location of the fast-on connectors and disconnect them.
- Remove the holding screws and the suspect microswitch.
- Install the new microswitch and holding screws; tighten to 0.3 Nm (3 in. lb.).
- Reconnect the fast-on connectors to the terminals noted in step 5.
- Close the enclosure, connect power, and enable the generator set.
- Test the transfer switch operation using the Automatic Operation Test.
Tools required
- Basic electricians hand tools
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Holding screws 0.3 Nm (3 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.