Generac 00941-3 Service And Adjustments, Battery, Adjusting The Carburetor, Once Weekly, Danger

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3.11 SERVICE AND ADJUSTMENTS

Section 3 – Maintenance

IMPACT-36 plus II Recreational Vehicle Generator

3.11 SERVICE AND ADJUSTMENTS

Do NOT use a forceful spray of water to clean

!the generator. Water will enter the generator interior and cause problems, and may also contaminate the generator fuel system.

3.10 BATTERY

All lead-acid storage batteries will discharge when not in use. Inspect the generator battery as follows:

3.10.1 ONCE WEEKLY

Inspect battery posts and cables for tightness, corro- sion. Clean and/or tighten as necessary.

Also check battery fluid level, and, if necessary, fill with DISTILLED WATER ONLY. DO NOT USE TAP WATER IN BATTERY.

3.10.2 EVERY SIX MONTHS

Have the battery state of charge and condition checked by an automotive service facility. This should be done with an automotive type battery hydrometer.

3.10 BATTERY◆3.10.1 ONCE WEEKLY DANGER

Storage batteries give off explosive hydrogen gas. This can form an explosive mixture around the battery for several hours after charging. The slightest spark can ignite the gas and cause an explosion. Such an explo- sion can shatter the battery and cause blind- ness or other injury. Any area that houses a storage battery must be properly ventilated. Do not allow smoking, open flame, sparks or any spark producing tools or equipment near the battery.

Battery electrolyte fluid is an extremely caus-

!tic sulfuric acid solution that can cause severe burns. Do not permit fluid to contact eyes, skin, clothing, painted surfaces, etc. Wear pro- tective goggles, protective clothing and gloves when handling a battery. If fluid is spilled, flush the affected area immediately with clear water.

Do not use any jumper cables or booster bat-

!tery to crank and start the generator engine. If any battery has discharged, remove it from the vehicle for recharging.

3.11.1 ENGINE SPEED

Engine speed is completely computer-controlled. There is no adjustment for speed on the unit. The computer adjusts the engine speed using an electron- ic governor throttle control. The computer monitors the demand for power and adjusts the engine speed accordingly. This allows the engine to produce only the power required, resulting in fuel economy as well as lowering the overall noise emitted.

NOTE:

The computer will disable the electrical load capabilities of the generator and enter a fault con- dition if the throttle is accelerated manually or any other way.

3.12 ADJUSTING THE CARBURETOR

The carburetor of the generator is preset at the facto- ry. The carburetor should not be tampered with, as this will void the emission control system warranty. If the generator is used at altitudes in excess of 5,000 feet, consult the Generac Authorized Service Facility regarding high altitude jetting changes.

3.13 ADJUSTING VALVE CLEARANCE

After the first 50 hours of operation, adjust the valve clearance in the engine.

When adjusting valve clearance, the engine should be at room temperature and the piston should be at Top Dead Center (TDC) of its compression stroke (both valves closed). Correct clearance is 0.001-0.003 inch

(0.03-0.07mm). Adjust valve clearance as follows:

1.Loosen the rocker arm jam nut. Use an allen wrench to turn the pivot ball stud while checking clearance between the rocker arm and the valve stem with a feeler gauge (Figure 3.8).

Figure 3.8 — Adjusting Valve Clearance

12 Generac® Power Systems, Inc.

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Contents Model No 00941-3 IMPACT-36plus II with Inverter This manual should remain with the unitAir-cooledRecreational Vehicle Generator OPERATION AND MAINTENANCE AUTHORIZED SERVICE DEALER LOCATIONCONTENTS HOW TO OBTAIN SERVICEIMPACT-36plus II Recreational Vehicle Generator Table of ContentsPart II - Installation Instructions GENERAL HAZARDS EXPLOSION HAZARDS ELECTRICAL HAZARDSFIRE HAZARDS 2 11 3 12 4 16 1.1.1 IMPACT-36LPGPLUS II FEATURES1.1GENERATOR IDENTIFICATION REFERENCE NUMBER IDENTIFICATION1.1.2 INVERTER FEATURES PART NO. 0D4885 1.2GENERATOR APPLICABILITY 1.3SAFETY1.4.2 START/STOP SWITCH 1.4GENERATOR CONTROL PANEL1.5ENGINE PROTECTIVE DEVICES 2.1BEFORE STARTING THE ENGINE2.1.4 COOLING AND VENTILATING AIR 2.2STARTING THE GENERATOR2.3STOPPING THE GENERATOR 2.1.5 ENGINE EXHAUST GAS2.11 ENGINE SPECIFICATIONS 2.7OPERATING PRECAUTIONS2.10 LP GENERATOR SPECIFICATIONS 2.5ATTENTION REQUIRED AFTER SUBMERSION3.3CHANGE ENGINE OIL 3.1MAINTENANCE3.2CHECKING ENGINE OIL LEVEL 3.4CHANGE OIL FILTER3.9 CLEANING THE GENERATOR 3.5ENGINE AIR CLEANER3.6CLEAN AIR INTAKE SCREEN 3.7ENGINE SPARK PLUG3.12 ADJUSTING THE CARBURETOR 3.11 SERVICE AND ADJUSTMENTS3.10 BATTERY 3.13 ADJUSTING VALVE CLEARANCE3.15 EXERCISING THE GENERATOR 3.16 OUT OF SERVICE PROTECTION3.17 RETURN UNIT TO SERVICE AFTER STORAGE Figure 3.9 - Tightening Jam Nut14 Generac Power Systems, Inc PART INSTALLATION INSTRUCTIONSSHOULD ATTEMPT INSTALLATION ONLY QUALIFIED ELECTRICIANS OR CONTRACTORSNOTICE TO INSTALLER FIRE HAZARDS 1.3STANDARDS BOOKLETS 1.2SAFETY1.1PURPOSE AND SCOPE OF THE MANUAL 1.4EQUIPMENT DESCRIPTION2.1.2 GENERATOR SUPPORT 2.1LOCATION AND SUPPORT2.1.1 GENERATOR LOCATION 2.1.3 SUSPENDED MOUNTINGFigure 2.3 - Typical Generator Restraint 2.2GENERATOR COMPARTMENTS2.1.4 GENERATOR RESTRAINT Figure 2.4 - Types of Lock SeamsFigure 2.5 - Provide Clearance Around Generator 2.2.1 COMPARTMENT SIZE2.2.2 COMPARTMENT CONSTRUCTION Figure 2.6 - Typical Compartment ConstructionFigure 2.7 - Compartment Floor Cutout 0A6203-A 2.2.3 SOUND INSULATING MATERIALS2.2.4 COMPARTMENT FLOOR CUTOUTS 2.3.1 GENERATOR AIR FLOW 2.3COOLING AND VENTILATING AIR2.2.5 ACOUSTICS Figure 2.8 - Typical Noise Abatement CompartmentFigure 2.11 - Suspended Mount Inlet Door 2.3.2 COOLING AIR INLET OPENINGSFigure 2.12 - Air Inlet Using Ductwork Figure 2.10 - Air Inlet in Compartment Door2.3.3 COMPENSATING FOR RESTRICTIONS 2.3.5 TESTING THE INSTALLATION2.4PROPANE GAS FUEL SYSTEM 2.4.1 PARTS NOT INCLUDED IN FUEL SYSTEM2.4.4 PRIMARY REGULATOR 2.4.2 SOME IMPORTANT CONSIDERATIONS2.4.3 VAPOR WITHDRAWAL 2.4.5 GASEOUS CARBURETION2.4.7 EXCESS FLOW VALVE 2.5EXHAUST SYSTEM2.4.6 FUEL SUPPLY LINES 2.4.8 LEAKAGE TESTS2.5.2 TYPE OF EXHAUST SYSTEM 2.5.3 EXHAUST SYSTEM SAFETY2.6ELECTRICAL CONNECTIONS Figure 2.17 - Exhaust System2.6.4 POWER SUPPLY CORD 2.6.1 WIRING2.6.3 ISOLATING DIFFERENT POWER SOURCES 2.6.2 GENERATOR AC CONNECTION SYSTEMDOCKSIDE POWER Figure 2.20 - Transfer Switch Isolation MethodINVERTER POWER SUPPLY CORD POWER CORD FOR 30 Generac Power Systems, Inc2.7.2 BATTERY CABLES 2.7BATTERY INSTALLATION2.7.1 RECOMMENDED BATTERY 2.6.6 SENSING HARNESS2.7.4 BATTERY COMPARTMENT 2.8OPTIONAL ACCESSORIES2.7.3 BATTERY CABLE CONNECTIONS 2.8.1 REMOTE PLUG-INRECEPTACLE3.2BEFORE INITIAL START UP 3.1POST INSTALLATION TESTS3.4TESTING UNDER LOAD 3.3INITIAL STARTOPTIONAL ACCESSORIES 3.5INSTALLATION CHECKLISTBATTERY INSTALLATION POST INSTALLATION TESTSCAUSE 4.1TROUBLESHOOTING GUIDEPROBLEM CORRECTION36 Generac Power Systems, Inc Section 6 - Electrical Data 38 Generac Power Systems, Inc Generac Power Systems, Inc Section 7 - Exploded Views and Parts Lists 40 Generac Power Systems, IncDESCRIPTION Control Panel - Drawing No. 0E756042 Generac Power Systems, Inc DESCRIPTION 44 Generac Power Systems, Inc GN 220 RV Long Block - Drawing No. 0A6202-G078621 46 Generac Power Systems, Inc DESCRIPTION Section 8 - Warranty YOUR WARRANTY RIGHTS AND OBLIGATIONSPURCHASER’S/OWNER’S WARRANTY RESPONSIBILITIES ATTENTION WARRANTY DEPARTMENTEMISSION CONTROL SYSTEM WARRANTY EMISSION RELATED PARTS INCLUDE THE FOLLOWINGGENERAC POWER SYSTEMS, INC GENERAC POWER SYSTEMS’ THREE-YEARLIMITED WARRANTYWARRANTY SCHEDULE - COMMERCIAL APPLICATIONS FOR GUARDIAN RECREATIONAL VEHICLE GENERATORS