Kohler — Installation Procedure, 17/18/20 kW Models
Installation · Carburetor heater
From a Kohler service manual covering: 10RESV, 12RESV, 17RES, 18RES, 20RES, 8RESV. Check it applies to your exact model before use.
Applies to: Kohler 10RESV, Kohler 12RESV, Kohler 17RES, Kohler 18RES, Kohler 20RES, Kohler 8RESV
Before you start
- Disconnect battery cables before working on generator set; remove negative lead first.
- Disconnect all power sources before opening enclosure.
- Install heater before connecting power; allow to cool before servicing.
Procedure
- Open enclosure roof; locate controller and engine air cleaner.
- Turn off generator set: 17/18RES/RESL move master switch OFF; 20RES/RESL press OFF and remove fuse F3; 20RESA/AL/B/C/CL/D press OFF.
- Disconnect AC power by opening circuit breaker in distribution panel.
- Disconnect engine starting battery, negative lead first.
- Check nameplate model/spec; see Figure 4 for heater location. Heater fits threaded opening on carburetor below air cleaner.
- Remove air cleaner cover if easier access needed.
- Disconnect heater element from power cord at plug connector (GM57968 or GM88228).
- Insert heating element into threaded opening on engine and tighten.
- Reconnect power cord to heater.
- For 17/18RES/RESL and 20RES/RESL: remove air intake panel; install bushing X-634-15 or X-634-16; route cord through bulkhead; plug into 120 VAC receptacle under controller.
- For 120 V 20RESA/AL/B/C/CL/D: route cord away from hot parts; plug into receptacle in engine compartment; use 3-way cord GM95628 if multiple accessories; secure excess cable.
- For 240 V 14/20RESA and 20RESC: remove controller screws, remove bulkhead knockout, route cord and insert plug; disconnect 120 VAC harness at 3-pin; connect 3-pin to new 240 VAC connector.
- Replace air cleaner cover if removed; affix decal GM22387 as shown.
- Check master switch OFF (17/18); reconnect battery, negative last; close distribution breaker. 20RES/RESL: reinstall fuse F3.
- For standby, move master switch to AUTO or press AUTO. Reinstall enclosure panels; close and lock roof.
Specs & values
- Bushing X-634-15 for 17/18RES FridayParts $258.90/RESL
- Bushing X-634-16 eBay for 20RES/RESL
- 3-way FridayParts $20.62 extension cord GM95628 eBay
Full service-parts list: Kohler 17RES →, Kohler 18RES →, Kohler 20RES →
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.