Kohler 12RES / 8.5RES — Installation Checks - AC Electrical System, Transfer Switch, Batteries and DC Electrical System
Installation · Transfer switch and electrical system
For the Kohler 12RES / 8.5RES, from the Kohler service manual.
Applies to: Kohler 12RES, Kohler 8.5RES
Before you start
- Disconnect all AC sources and operate the transfer switch manually when checking the mechanism.
Parts for this job
Part numbers from the service-parts lists for Kohler 12RES, Kohler 8.5RES. Verify against your serial number before ordering; some links are affiliate links.
Procedure
- Verify nameplate voltage/frequency ratings of generator set and transfer switch match normal/utility source ratings.
- Verify generator set load conductors have adequate ampacity and are correctly connected to breakers and/or emergency side of transfer switch.
- Verify load leads, battery charger cables and AC wiring are installed in separate conduit from engine starting leads and DC wiring.
- Verify battery charger AC circuit is connected to the corresponding voltage.
- Verify equipment is grounded in accordance with local codes.
- Verify transfer switch mechanism operates without binding.
- Verify transfer switch AC conductors are correctly connected and lead designations are verified against the wiring diagrams.
- Verify all other wiring is connected as required.
- Verify battery has the specified CCA rating and voltage.
- Verify engine starting cables are connected to the battery.
Full service-parts list: Kohler 12RES →, Kohler 8.5RES →
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.