9NOTE:A minimum of one approved manual shut-off valvemust be installed in the gaseous fuel supply line.The valve must be easily accessible. Local codesdetermine the proper location.1.10 RECONFIGURING THEFUEL SYSTEM1.10.1 8 KW, 410CC ENGINETo reconfigure the fuel system from NG to LP, followthese steps (Figure 1.4):NOTE:The primary regulator for the propane supply isNOT INCLUDED with the generator. A fuel pres-sure of 10 to 12 inches of water column (0.36 to0.43 psi) to the fuel inlet of the generator MUSTBE SUPPLIED.1. Turn off the main gas supply (if connected).2. Open the roof and remove the door.3. Remove the battery (if installed).4. Take the plastic T-handle fuel selector in the polybag supplied with the generator.5. Locate the selector knob on the air box cover,behind the yellow air filter door and powerbulge. The unit comes from the factory in the NG(Natural Gas) position. Grasping the T-handle,insert the pin end into the hole in the selectorknob and pull out to overcome spring pressureand then twist clockwise 90 degrees and allowthe selector to return in once aligned with the LP(Liquid Propane) position.6. Save this tool with the Owner's Manual.7. Install the battery, door and close the roof.8. Reverse the procedure to convert back to naturalgas.Figure 1.4 – Fuel SelectorNOTE:Use an approved pipe sealant or joint compoundon all threaded fittings to reduce the possibilityof leakage.1.10.2 10, 12, 14, 16, 17 AND 20KW, V-TWINENGINESTo reconfigure the fuel system from NG to LP, followthese steps:NOTE:The primary regulator for the propane supply isNOT INCLUDED with the generator. A fuel pres-sure of 10 to 12 inches of water column (0.36 to0.43 psi) to the fuel inlet of the generator MUSTBE SUPPLIED.1. Open the roof.2. For 10kW units: Loosen clamp and slide backthe air inlet hose.Slide fuel selector on carburetor out towards the•back of the enclosure (Figures 1.5 and 1.6).Return the inlet hose and tighten clamp secure-•ly.For 12, 14, 16, 17 and 20kW units: remove the aircleaner cover.Slide the selector lever out towards the back of•the enclosure (Figures 1.7 and 1.8).Return the air cleaner cover and tighten the two•thumb screws.Figure 1.5 - 10kW, GT-530 (Inlet Hose Slid Back)Fuel SelectionLever - "In"Position forNatural GasFuel3. Close the roof.4. Reverse the procedure to convert back to naturalgas.Section 1 — General InformationAir-cooled Generators