Reconfiguring The Fuel System - Generac Power Systems 7 kW NG Repair Manual

GENERAL INFORMATION

RECONFIGURING THE FUEL SYSTEM

8kW, 410cc Engine
To reconfigure the fuel system from NG to LP , follow these steps
(Figure 9):
Note: The primary regulator for the propane supply is NOT
INCLUDED with the generator. A fuel pressure of 10 to 12
inches of water column (0.36 to 0.43 psi) to the fuel inlet of
the generator MUST BE 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 poly bag
supplied with the generator.
5. Locate the selector knob on the air box cover, behind
the yellow air filter door and power bulge. 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 selector knob and pull out to overcome spring
pressure and then twist clockwise 90 degrees and allow
the 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 natural gas.
Figure 9. Fuel Selector
Note: Use an approved pipe sealant or joint compound on
all threaded fittings to reduce the possibility of leakage.
PART 1
10, 13, 14, 15, 16, 17 and 20kw, V-twin Engines
To reconfigure the fuel system from NG to LP , follow these
steps:
Note: The primary regulator for the propane supply is NOT
INCLUDED with the generator. A fuel pressure of 10 to 12
inches of water column (0.36 to 0.43 psi) to the fuel inlet of
the generator MUST BE SUPPLIED.
1. Open the roof.
2. For 10kW units: Loosen clamp and slide back the air
inlet hose.
• Slide fuel selector on carburetor out towards the back of the
enclosure (Figures 10 and 11).
• Return the inlet hose and tighten clamp securely.
For 13, 14, 15, 16, 17 and 20kW units: remove the air
cleaner cover.
• Slide the selector lever towards the back of the enclosure
(Figures 12 and 13).
• Re-install the air cleaner cover and tighten the two thumb
screws.
FUEL SELECTION
LEVER -
"IN" POSITION FOR
NATURAL GAS
Figure 10. 10kW, GT-530 (Inlet Hose Slid Back)
FUEL SELECTION
LEVER -
"OUT" POSITION FOR
LIQUID PROPANE
(VAPOR) FUEL
Figure 11. 10kW, GT-530 (Inlet Hose Slid Back)
Section 1.3
Preparation Before Use
Page 17