Évaluations - 2, GPA: 4.5
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Facilité d'utilisation
See Section 1.5.2 (Page 6) for oil capacities. 4.4 CHANGING THE OIL FILTER Change the engine oil filter as follows: 1. With the oil drained, remove the old oil filter by turning it counterclockwise. 2. Apply a light coating of clean engine oil to the gasket of the new filter. See Section 1.5.1 (Page 6) for recommended filter. 3. Screw the new filter on by hand until its gasket lightly contacts the oil filter adapter. Then, tighten the filter an additional 3/4 to one turn (Figure 4.4). 4. Refill with the proper recommended oil (see Section 4.3.1, Page 15). See Section 1.5.2 (Page 6) for oil capacities. 5. Start the engine and check for leaks. Oil Filter Oil Drain Hose Loosen ! Oil Dipstick Oil Fill Oil Dipstick and Fill ! Section 4 — Maintenance Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators Section 4 — Maintenance Guardian Air-cooled 7 kW, 12 kW and 15 kW Generators • Remove watches, rings or other metal objects; • Use tools with insulated handles; • Wear rubber gloves and boots; • Do not lay tools or metal parts on top of the battery; and • Disconnect charging source prior to connecting or disconnecting battery terminals. ! ! Do not open or mutilate the battery. Released electrolyte has been known to be harmful to the skin and eyes, and to be toxic. The electrolyte is a dilute sulfuric acid that is harmful to the skin and eyes. It is electrically conductive and corrosive. The following procedures are to be observed: • Wear full eye protection and protective clothing; • Where electrolyte contacts the skin, wash it off immediately with water; • Where electrolyte contacts the eyes, flush thoroughly and immediately with water and seek medical attention; and • Spilled electrolyte is to be washed down with an acid neutralizing agent. A common practice is to use a solution of 1 pound (500 grams) bicarbonate of soda to 1 gallon (4 liters) or water. The bicarbonate of soda solution is to be added until the evidence of reaction (foaming) has ceased. The resulting liquid is to be flushed with water and the area dried. Lead-acid batteries present a risk of fire because they generate hydrogen gas. The following procedures are to be followed: • DO NOT SMOKE when near the battery; • DO NOT cause flame or spark in battery area; and • Discharge static electricity from your body before touching the battery by first touching a grounded metal surface. ! Be sure the Auto/Off/Manual switch is set to the OFF position before connecting the battery cables. If the switch is set to AUTO or MANUAL, the generator can crank and start as soon as the battery cables are connected. Be sure the utility power supply is turned off, or sparking may occur at the battery posts as you attach the cables and cause an explosion. 4.8 ADJUSTING VALVE CLEARANCE After the first 50 hours of operation, you should adjust the valve clearance in the engine. Important: If you feel uncomfortable about doing this procedure or you don't have the proper tools, please contact your Generac Authorized dealer for service assistance. This is a very important step to insure longest life for your engine. To adjust valve clearance: • Make sure the engine is at room temperature. • Make sure that the spark plug wire is removed fromthe spark plug and out of the way. • Remove the four screws attaching the valve cover with a #2 or #3 phillips screwdriver. • Make sure the piston is at Top Dead Center (TDC) of its compression stroke (both valves closed). To get the piston at TDC, remove the intake screen at the front of the engine to gain access to the flywheel nut. Use a large socket and socket wrench to rotate the nut and hence the engine. While watching the piston through the spark plug hole. The piston should move up and down. The piston is at TDC when it is up as high as it can go. • Loosen the rocker jam nut. Use an 10mm allen wrench to turn the pivot ball stud while checking clearance between the rocker arm and the valve stem with a feeler gauge. Correct clearance is 0.002-0.004 inch (0.05-0.1 mm). NOTE: You must hold the rocker arm jam nut in place as you turn the pivot ball stud. When valve clearance is correct, hold the pivot ball stud in place with the allen wrench and tighten the rocker arm jam nut. Tighten the jam nut to 174 in/lbs. torque. After tightening the jam nut, recheck valve clearance to make sure it did not change. Generac® Power Systems, Inc. 19 20 Generac® Power Systems, Inc. Figure 4.10 - Valve Clearance Adjustment • Install new valve cover gasket. • Re-attach the valve cover. NOTE: Start all four screws before tightening or you will not be able to get all the screws in place. Make sure the valve cover gasket is in place. • Re-attach the spark plug wire to the spark plug. • Repeat the process for the other cylinder. 4.9 COOLING SYSTEM Air inlet and outlet openings in the generator compartment must be open and unobstructed for continued proper operation. This includes such obstructions as high grass, weeds, brush, leaves and snow. Without suffic...