Kohler — Arc Chute Replacement
Repair & overhaul · Arc chute assembly
From a Kohler service manual — check it applies to your exact model before use.
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Before you start
- Hazardous voltage. Only authorized personnel should open the enclosure.
Procedure
- Prevent all connected generator sets from starting (master switch OFF, disconnect battery charger, disconnect starting batteries negative lead first).
- Disconnect power to the transfer switch; open the enclosure and verify zero volts across each phase.
- Remove the arc chute hold down screws and remove the arc chute.
- Inspect the movable contact for damage; order a replacement contactor if damaged.
- Install the new arc chute and holding screws/washers; torque screws to 2.8 Nm (25 in. lb.).
- Manually operate the switch several times to ensure it does not stick.
- Close the enclosure; reconnect power; enable the generator set; move master switch to AUTO; test operation.
Tools required
- Basic electrician's hand tools
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Arc chute screws 2.8 Nm (25 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.