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Resumen del manual
of Teeth on Flywheel ........................................................104 Ignition Timing at 1800 rpm ..................................................35 degrees BTDC at 3600 rpm ..................................................43 degrees BTDC Spark Plug Gap ..................................................0.020-0.025 inch Recommended Spark Plugs Champion ....................................................................RN11YC4 Oil Pressure....................................................................30-50 psi Crankcase Oil Capacity........................3.0 U.S. quarts (2.8 liters) Recommended Engine Oil........................................SAE 15W-40 Type of Cooling System ..................Pressurized, closed recovery Cooling Fan ..............................................................Pusher Type Cooling System Capacity ......................2 U.S. gallons (7.6 liters) Recommended Coolant............................Use a 50-50 mixture of ethylene glycol base. 1.11 FUEL CONSUMPTION 25 kW Models Using Natural Gas ........................................441 cu. ft. per hour Using LP Gas..............................175 cubic ft.(4.8 gal.) per hour 20 kW Models Using Natural Gas ........................................359 cu. ft. per hour Using LP Gas ............................143 cubic ft. (4.0 gal.) per hour 15 kW Models Using Natural Gas ........................................277 cu. ft. per hour Using LP Gas..............................110 cubic ft.(3.1 gal.) per hour NOTE: Fuel consumption is given at rated maximum continuous power output when using natural gas rated at 1000 Btu per cubic foot and LP gas rated 2520 Btu per cubic foot. Actual fuel consumption obtained may vary depending on such variables as applied load, ambient temperature, engine conditions and other environmental factors. Fuel pressure for both natural gas and liquid propane set ups should be 11 inches to 14 inches of water column (0.6 psi) at all load ranges. NOTE: A seperate gas line and regulator may be needed to assure proper gas pressure (11-14”) to the generator. Low gas pressure can cause hard starting and could affect engine durability. 1.12 RECONFIGURING THE FUEL SYSTEM NOTE: All models are configured for natural gas from the factory. To reconfigure the fuel system from NG to LP, follow these steps: 1. Turn the main gas supply off. 2. Remove the carburetor fuel hose from the outlet port (Port 1) of the demand regulator (Figure 1.8). 3. Remove the brass hose fitting from the outlet port (Port 1) of the demand regulator. 4. Remove pipe plug from Port 2. 5. Install brass hose fitting into Port 2. 6. Install pipe plug into Port 1. 7. Connect carburetor gas hose to brass fitting. 8. Tighten all clamps and plugs. 9. Make sure fuel supply is of the proper pressure and type for configuration. 10. Reverse the procedure to convert back to natural gas. Figure 1.8 — Reconfigure the Fuel System Port 1 Port 2 FUEL HOSE FUEL HOSE BRASS HOSE PLUG BRASS HOSE PLUG FITTING FITTING OUT OUT PORT 1 PORT 2 HOUSING HOUSING PORTS PORTS NG FUEL SYSTEM LP FUEL SYSTEM Generac® Power Systems, Inc. 7 Guardian Liquid-cooled 15 kW, 20 kW and 25 kW Generators NOTE: Port 1 is for NG only and Port 2 is for LP vapor only. No provision for simultaneous fuels has been made. DANGER ! Serious injury or damage may occur if not configured properly. Please consult an authorized Generac Service Dealer with any questions. 1.13 TORQUE SPECIFICATIONS Cylinder Head ............................................15 (+ 90° + 90°) ft.lb. Intake Manifold ................................................................13 ft.lb. Exhaust Manifold..............................................................13 ft.lb. 1.14 ENGINE OIL RECOMMENDATIONS The unit has been filled with 15W-40 engine oil at the factory. Use a high-quality detergent oil classified “For Service CC, SD, SE, SF.” Detergent oils keep the engine cleaner and reduce carbon deposits. Use oil having the following SAE viscosity rating, based on the ambient temperature range anticipated before the next oil change: Temperature Oil Grade (Recommended) Above 80° F (27° C) SAE 30W or 15W-40 32° to 80° F (-1° to 27° C) SAE 20W-20 or 15W-40 Below 32° F (0° C) SAE 10W or 15W-40 ! Any attempt to crank or start the engine before it has been properly serviced with the recommended oil may result in an engine failure. 1.15 COOLANT RECOMMENDATIONS Use a mixture of half low silicate ethylene glycol base anti-freeze and deionized water. Cooling system capacity is about 8 U.S. quarts (7.6 liters). Use only deionized water and only low silicate anti-freeze. If desired, add a high quality rust inhibitor to the recommended coolant mixture. When adding coolant, always add the recommended 50-50 mixture. ! Do not use any chromate base rust inhibitor with ethylene glycol base anti-freeze or chromiumhydroxide (“green slime”) forms and will cause overheating. Engines that have been operated with a chromate base rus...