Kohler — Installing Main Circuit Breaker
Installation
From a Kohler service manual — check it applies to your exact model before use.
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Before you start
- Hazardous voltage. Will cause severe injury or death. Disconnect all power sources before opening the enclosure.
Procedure
- Turn off all power supplying the equipment before working on or inside it.
- If replacing an existing breaker, disconnect line conductors from the lugs or main lugs.
- Using a 5/16 in. nut driver, remove the screw holding the existing circuit breaker.
- Remove the two hex nut assemblies and remove the main circuit breaker.
- Push the new circuit breaker toward the top end wall until it locks in place.
- Install the transfer mechanism mounting post; torque the post to 3.4 Nm (30 in. lb.).
- Secure the circuit breaker with two hex nut assemblies using a 7/16 in. nut driver and torque wrench.
- Torque the fasteners to 6-10 Nm (50-90 in. lb.).
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- 3.4 Nm (30 in. lb.)
- 6-10 Nm (50-90 FridayParts $83.21 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.