Kohler — Storage Procedure
Maintenance · Generator set
From a Kohler service manual covering: 12RES, 8.5/12 RES, 8.5RES. Check it applies to your exact model before use.
Applies to: Kohler 12RES, Kohler 8.5RES, Kohler CH20 engine, Kohler CH 740 engine
Before you start
- Battery electrolyte is a diluted sulfuric acid. Battery acid can cause severe injury or death.
Procedure
- Perform before taking the generator set out of service for three months or longer.
- Lubricating system: run set 30 minutes to warm; stop; drain oil while warm; replace oil filter; refill with oil.
- Run generator set two minutes to distribute clean oil; stop; check and adjust oil level.
- Fuel system: start generator set; with it running shut off gas supply; run until engine stops.
- Place the generator set master switch in the OFF/RESET position.
- Internal engine components: spray fogging agent or SAE 10 oil into air intake while running for about two minutes until engine stops.
- If no fogging agent: remove spark plugs, pour one tablespoon of engine oil into each spark plug hole, install plugs and ground the leads.
- Toggle the master switch to crank the engine two or three revolutions to lubricate cylinders.
- Exterior: clean exterior surface; seal all engine openings except the air intake with nonabsorbent tape.
- Secure a cloth over the air intake; mask electrical connections.
- Spread a light film of oil over unpainted metallic surfaces.
- Battery: place master switch OFF/RESET; disconnect battery(ies), negative lead first; clean battery.
- Place battery in a cool, dry location; connect to a float/equalize charger or charge monthly with a trickle charger.
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.