P248V Performer Series
Contents
1. OAOA I aTeTfaT 1 Miaria ar Operator s Manual P248V Performer Series Printed in U S A 965 0183 A WARNING A The engine exhaust from this product contains chemicals known to the State of California to cause cancer birth defects or other reproductive harm Table of Contents SAFETY PRECAUTIONS cet ohio se RT N R RR anes I R NAR AEE RN K eee 2 INTRODUCTION rR RRR R aeien R KR E ARR RR esd R TRR ea eee 4 Abo tthis Manual mers ZK rt hut E 0 T TE eae tee E TR ed e scent 4 Model Identification x sese ee e el eatetenie Det cel eeeeeele 4 Exhaust Non Floorcare Engines cece eee eee ee 4 Exhaust Floorcare Engines lt 2cicitsiaepietee eee tedetictiedeae teed ee 6 Fuel Recomme dations 95 69 556 9 5 K 0 N XR R R 29h 0 9 9 eo N 0 En RR KKR deans aes 7 Engine Oil Recommendations cece eee eee eae 7 Starting Batteries x Kaa RT HR a TAT e RRR a sede ER TR ATR vege 7 OPERATION 24 x R ER R R RR R RR ERER RER R RR R TR esters 8 Prestant CHSC s 05 cen uirre wanes se ane bee ETEEN EEEIEE eh ested eines 8 Staing eesse trpp a SE E S E HSS eee ESSELTE Oe RR RSs E RR oN ee 8 SIOPDPINO 5s cena dee A I E E E T H sass 9 Engine Break icccrdeeeesdiigreediag phate R RR RRR RR RR RRR RRR TN 9 Operation in Dusty Conditions e oes penoes ones sale 9 Operation it Hot Weainel oc iwiovbcedcevdasiienbsctiaisceserehactenend 9 Operation in Cold Weather 00 cece eee eee ees 9 Out of Service Pr2. RETURNING THE ENGINE TO SERVICE 1 Remove the cover and all protective wrapping and the plug from the exhaust outlet Check the tag on the oil base Change the oil if the viscosity is not appropriate for the ex pected ambient temperatures Table 1 Check the fuel filter gasoline engines and fuel lines to make sure they are secure and have no cracks or leaks Check to see that the choke throttle and gov ernor linkages move freely If so equipped clean and check the battery according to the battery or equipment manufacturer s instructions and connect the battery cables positive cable first Start the engine The initial startup may be slow and there may be smoke and rough op eration for a few minutes until the oil in the cyl inder burns off If the engine does not start clean or replace the spark plugs as they may have been fouled by the oil added to the cylin der when the equipment was stored Periodic Maintenance Periodic maintenance is essential for top engine performance Use Table 2 as a guide for normal periodic maintenance Under hot or dusty operat ing conditions some maintenance operations should be performed more frequently as indicated by the footnotes in the table Keep a log of mainte nance performed and the hours run Recording maintenance will help you keep it regular and pro vide a basis for supporting warranty claims Maintenance replacement or repair of emis
3. 0099 2500 01 REFER TO OPERATOR S MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS THIS ENGINE MEETS US EPA PHI AND 1995 1999 CALIFORNIA EMISSION REGULATIONS FOR ULGE ENGINES SN5782U1G2RA 782 cc UNLEADED GASOLINE ONLY FIGURE 2 TYPICAL NAMEPLATE GASOLINE LPG CUTOFF ELECTRIC SOLENOID STARTER LPG CONVERTER THROTTLE REGULATOR CABLE CLAMP AUTO SHUTDOWN eee CONTROL UNIT ae saa ES Sua ARRESTOR BATTERY CHARGING REGULATOR AIR PRECLEANER NAMEPLATE OXYGEN SENSOR BACK OF MUFFLER AIR FILTER HOUSING CATALYTIC MUFFLER i CRANKSHAFT FIGURE 3 TYPICAL CONFIGURATION SHOWING A FLOORCARE ENGINE EXHAUST FLOORCARE ENGINES If the emissions warning light comes on and the engine shuts down emis sions of deadly carbon monoxide gas could be excessive Do not restart the engine See Trou bleshooting An LPG engine for floorcare equipment has an exhaust emissions control system consisting of a catalytic muffler oxygen sensor auto shutdown control unit LPG fuel cutoff solenoid LPG con verter regulator and LPG carburetor Figure 3 The emissions warning light on the control unit Figure 4 will come on if the control unit senses that the exhaust emission levels O2 are out of specification Approximately one minute after the light comes on the control unit will shut down the engine Proper operation and maintenance requires that you e Run the equipment only in well ventilated a
4. Check the following before the first start of the day and after every eight hours of operation 1 Inspect fuel lines and fittings for leaks Repair leaks immediately A leaky exhaust system can result in higher levels of deadly carbon monoxide gas emissions Do not operate the equipment if there is an exhaust leak Look and listen for exhaust system leaks while the engine is running Look for cracks and severe rusting in the muffler and tailpipe Have all leaks repaired before continuing to operate the equipment A clogged air precleaner or flywheel inlet screen can cause the engine to overheat or run rich and shut down Do not operate floor cleaning equipment without the air precleaner in place Keep the cooling fins and air inlet screen clean and wash a precleaner regularly as pre scribed Check the engine for dirt and debris and clean the flywheel air inlet screen and cylinder cool ing fins as necessary On floorcare equipment engines remove the cooling air precleaner element daily every 8 hours and wash it in warm water and mild detergent Rinse it thor oughly and let it dry before reusing it Do not oil Crankcase pressure can blow hot engine oil out the fill tube causing se vere burns Always stop the engine before removing the oil fill cap Check the engine oil level First park the equipment on a level surface stop the engine and wait a minute or so to allow the oil to settle in the crankcase Then
5. in accordance with the equipment manufacturer s specifications LINK THROTTLE CABLE Pull cable sheath to remove slack before clamping LOW IDLE CABLE SPEED STOP CLAMP SCREW CARBURETOR SPEED STOP SCREW FIGURE 12 SPEED ADJUSTMENTS Troubleshooting Many troubleshooting procedures present hazards that can result in severe per sonal injury or death Only qualified service personnel with knowledge of fuels electricity and machinery hazards should perform serv ice procedures Review Safety Precautions Table 3 provides basic troubleshooting guidance If you fail to resolve the problem after taking the corrective actions suggested contact an equip ment dealer or Onan dealer Floorcare Engines lf the emissions warning light comes on and the engine shuts down service the air precleaner air cleaner and spark arrestor Have the engine serviced if that does not restore operation TABLE 3 TROUBLESHOOTING Problem 1 The engine fails to Corrective Action a Release the clutch if so equipped crank b Clean and tighten the positive and negative battery cable con nections at the battery and the engine c Recharge the battery Refer to the equipment or battery manufactur er s recommendations 2 The engine cranks slowly a Release the clutch if so equipped b Clea
6. remove the oil drain plug or open the drain valve Reinstall the plug or close the valve se curely after the oil has drained completely 4 Spin off the oil filter canister making sure the gasket comes off with it Dispose of the used oil and oil filter in accordance with local envi ronmental regulations OIL FILL CAP AND DIPSTICK 5 Thoroughly wipe off the filter mounting sur face on the engine make sure the gasket is in place on the new filter canister apply a thin L film of oil to the gasket and spin on the new fil CA ter cannister Tighten it 1 2 to 3 4 turn past the point where the gasket just touches the block Q es Do not overtighten O JI f 6 Refill with the recommended oil p 7 Check the oil level and add more oil if below the ADD mark or drain oil if above the FULL mark See Specifications for the oil capacity O Secure the fill cap Too much oil can cause high oil consumption high operating tempera tures and oil foaming Too little oil can cause severe engine damage Keep the oil level between the Full and Add marks on OIL DRAIN S the dipstick VALVE OR PLUG a KT T 7 Reconnect the spark plugs and battery and start and run the engine for a short time while FIGURE 3 QIL a eet aad STCK PIETER checking for oil
7. SH CE Also look for the SAE Society of Automotive Engineers viscosity grade Referring to Table 1 choose the viscosity grade appropriate for the ambient temperatures expected during the period of time until the next scheduled oil change Single grade SAE 30 oil is preferable when tem peratures are consistently above freezing Multi grade oils are better when wide temperature varia tions are expected TABLE 1 OIL VISCOSITY VS TEMPERATURE SAE VISCOSITY GRADE EXPECTED AMBIENT TEMPERATURES 32 F 0 C and higher 10 F to 100 F 12 C to 38 C Raye 0 F to 80 F 18 C to 27 C aae 20 F to 50 F 28 C to 10 5W 30 STARTING BATTERIES The engine is equipped with a 12 volt electric start er Prompt starting requires sufficient battery ca pacity and battery cable size Neither cranking performance nor starter service life will be satis factory with an undersized battery Regular monthly maintenance of batteries may be required See Periodic Maintenance and any instructions available from the equipment or bat tery manufacturer It should be noted that as long as the equipment is operated regularly the auto matic battery recharging system on the engine should be able to maintain battery charge See OUT OF SERVICE PROTECTION under Opera tion regarding battery care during storage for pro longed periods Operation EXHAUST GAS IS DEADLY Exhaust gases contain carbon monoxide a
8. disconnect the negative gine is started and after every eight hours of battery cable first and reconnect it last to re operation If the exhaust noise changes shut duce arcing down the engine immediately and have it in MOVING PARTS CAN CAUSE SEVERE spected PERSONAL INJURY OR DEATH e The integral exhaust system must not be e Do not wear loose clothing or jewelry near modified in any way moving parts such as PTO shafts fans belts and pulleys e Do not use engine cooling air to heat a room e Keep hands away from moving parts e Make sure there is ample fresh air when oper e Keep guards in place over fans belts pulleys ating the engine in a confined area etc e floorcare Introduction ABOUT THIS MANUAL This manual covers the operation and mainte nance of the vertical shaft Performer Series of en gines Each operator of the power equipment should study this engine manual carefully and ob serve all of its instructions and precautions Proper use and periodic maintenance are responsibilities of the operator s and are essential for top perfor mance MODEL IDENTIFICATION Whenever contacting an Onan dealer or distribu tor for information parts or service always pro vide the model number and the serial number marked on the nameplate of the engine Figures 1 and 2 illustrate typical engine nameplates Fig ure 3 illustrates a typical engine and the location of the nameplate Genuine Onan replacement par
9. oil EXHAUST GAS IS DEADLY Never operate mobile engine powered equipment indoors without ample fresh air ventilation 2 Use fresh fuel and fill the fuel tank after each day s use to reduce problems with moisture condensation 3 Keep the battery in a well charged condition 4 After each use push the equipment throttle knob or lever if so equipped to the middle of its speed range so that if ice forms on the link age during storage it will be easier to start the engine OUT OF SERVICE PROTECTION Never tip the engine on either side Engine oil can enter the air filter and cause the engine to run rich and shut down Protect an engine that will be out of service for more than 30 days as follows 1 Run the engine until it reaches normal operat ing temperature shut off the fuel supply and let the engine run until it stops Gasoline preservatives stabi lizers are toxic Follow the instructions on the container label Avoid skin contact Wash your hands with soap and water af ter dispensing the fluid Gasoline Engine lf the equipment will not be operated for more than 120 days add a fuel preservative OnaFresh to the gasoline fuel tank Follow the instructions on the con tainer label Unless a preservative stabilizer is added the gasoline will deteriorate causing fuel system corrosion gum formation and varnish like deposits which can lead to hard starting and rough operation LPG leaks inside a garag
10. or service of your engine or equipment is autho rized you should seek assistance from an ap proved Onan engine dealer or an approved dealer for your equipment California engine users may use Table 4 as an aid in locating information related to the California Air Resources Board requirements for emissions control TABLE 4 EMISSIONS CONTROL INFORMATION The California emissions control warranty statement is lo Engine Warranty Information cated in the same packet of information as this manual when the engine is shipped from the factory Engine Valve Lash See Specifications Engine Ignition Timing See Specifications Gasoline engines are certified to operate on unleaded gas Engine Fuel Requirements oline LPG floorcare engines are certified to operate on LPG vapor See Fuel Recommendations in ntroduction Engine Lubricating Oil Requirements See Engine Oil Recommendations in ntroduction Engine Fuel Mixture Settings These engines have precision manufactured carburetors which are not adjustable Engine Adjustments See Adjustments The engine emissions control system consists of internal Engine Emission Control System engine modifications on gasoline engines and a catalytic muffler on LPG floorcare engines Onon Cummins Power Generation 1400 73rd Avenue N E Minneapolis MN 55432 763 574 5000 Fax 763 528 7229 Cummins and Onan are registered trademarks of Cummins Inc
11. ack the cylinder 3 Make sure the air cleaner element is in place to keep dirt out of the engine SPARK PLUG REPLACEMENT Refer to Table 2 for scheduled spark plug replace ment and Specifications for gap specifications To prevent crossthreading the spark plug always thread it in by hand until it seats Then turn it with a wrench an additional 1 16 turn 22 1 2 If you have a torque wrench tighten the spark plugs to 11 lbs ft 14 N m 15 COOLING FINS FIGURE 7 CYLINDER COOLING FINS FIGURE 8 SPARK PLUGS GASOLINE FUEL FILTER REPLACEMENT Refer to Table 2 for scheduled fuel filter replace ment and Figure 3 for the location of the fuel filter if so equipped Also refer to the equipment Oper ator s Manual regarding any supplemental fuel fil ters that may have been provided and the recom mended frequency for their replacement Take care not to spill fuel when disconnecting the fuel line from the filter Allow the engine to cool be fore disconnecting the fuel line so that it cannot ig nite any fuel that may be spilled Close any shutoff valve that may be provided in the fuel line If the fil ter is of the in line type it is usually removable by loosening the inlet and outlet hose clamps Gasoline is
12. and battery negative cable before re setting the engine control cables Push the equipment choke knob to the full open choke position Connect the choke cable to the choke lever The cable will either hook into the choke le ver or be clamped by a screw in a swivel on the choke lever See Figure 11 Pull the slack out of the cable and clamp it Check for smooth movement and full travel of the equipment choke knob Remove the air cleaner element as explained under Periodic Maintenance to see that the choke plate opens and closes fully Reassemble the air cleaner and reconnect the spark plug and battery 17 REAR PULL CHOKE CABLE CHOKE LEVER open position FRONT PULL CHOKE CABLE CHOKE LEVER open position INTERMEDIATE LINK AND LEVER SWIVEL CLAMP FIGURE 11 CHOKE CABLE ENGINE SPEED ADJUSTMENT Normally only the equipment manufacturer will need to make initial engine speed adjustments which must be attempted only by a qualified mechanic using proper tools and meters Moving parts can cause severe personal injury or death Take care use the proper tools and meters and follow the manufacturer s instructions for the tools and meters You must be a qualified mechanic In the absence of specifications it is recom mended that low idle spe
13. e failure severe personal in jury or death FUEL IS FLAMMABLE AND EXPLOSIVE e Keep flames cigarettes sparks pilot lights electrical arc producing equipment and switches and all other sources of ignition well away from areas where fuel fumes are pres ent and areas sharing ventilation e Do not fill the fuel tank while the engine is run ning e Fuel lines must be copper or steel tubing or piping adequately secured and free of leaks e Use approved flexible fuel hose for connec tions at the engine Do not use copper tubing as a flexible connector vibration will cause it to work harden and break Use non con ductive hose if the fuel line could become a path for cranking current e LPG leaks into an inadequately ventilated space can lead to explosive accumulations of gas LPG sinks when released into the air and can accumulate inside basements and other below grade spaces Precautions must be taken to prevent gas leaks and the accumula tion of gaseous fuel in the event of a leak e The fuel line must have a manual shutoff valve unless the highest fuel level in the sup ply tank is lower than the connection at the en gine ENGINE EXHAUST IS DEADLY BATTERY GAS IS EXPLOSIVE e Wear safety glasses and do not smoke while e Learn the symptoms of carbon monoxide poi servicing batteries soning in this Manual e When disconnecting or reconnecting battery e Inspect the exhaust system every time the en cables always
14. e or other inadequately ventilated space or near a pit or basement or other below grade space can lead to explosive accu mulations of gas because LPG sinks when it is released into the air Check for and comply with all local ordinances re garding the storage of LPG containers LPG Engine Store the LPG container as re quired by local ordinance 2 Drain the oil from the engine while it is still warm Refill with fresh oil and attach a tag stating the viscosity of the oil used 3 On a gasoline engine only remove the spark plugs and squirt 2 tablespoons 28 grams of rust inhibitor or SAE 30 oil into each cylinder Crank the engine over a few times and reinstall the spark plugs Do not do this on a floorcare engine The emissions caused by OnaFresh is a trademark of the Onan Corporation 10 the burning oil on startup could cause the engine to shut down 4 Perform air cleaner and precleaner floor care maintenance as instructed in Periodic Maintenance Do not oil the foam wrapper on a floorcare engine Oil can cause the engine to run rich and shut down Clean the governor linkage and wrap it with a clean cloth for protection Plug the exhaust outlet to prevent moisture dirt bugs etc from entering Provide a suitable cover for the entire unit If so equipped disconnect the battery nega tive cable first and follow the battery or equipment manufacturer s storage instruc tions
15. ed be adjusted to 1100 RPM and high idle speed to 3400 RPM Adjust floorcare equipment to a low idle speed of 1500 RPM and a high idle speed of 2800 RPM Adjusting equipment to run at greater than specified speeds may cause operation in violation of Federal and State Standards for Safety for the equipment Referring to Figure 12 adjust speed as follows 1 Start the engine observing all of the equip ment manufacturer s instructions and pre cautions 2 If the throttle cable has already been con nected loosen the clamp at the engine and back out the low idle speed stop screw so that the speed stop screw on the carburetor touches its stop Adjust engine speed to 1000 RPM 1400 RPM for floorcare with the carburetor speed stop screw 3 Turn the low idle speed stop screw to obtain the specified low idle speed 4 Move the engine throttle link up against its stop tang and hold it there while bending the tang as necessary to obtain the specified high idle speed 5 Hook the engine throttle link with the throttle cable pull the slack out of the throttle cable and tighten the clamp Check for full smooth movement of the engine throttle link between its two stop positions when the equipment throttle lever is moved through its full range 18 HIGH IDLE SPEED STOP TANG ENGINE Do not bend the high idle speed stop THROTTLE tang unless you are a qualified mechanic and have an accurate tachometer to set the high idle speed
16. h can result in severe personal injury or death alerts you to a hazard or unsafe practice which can result in personal injury or equipment damage Electricity fuel exhaust moving parts and batter ies present hazards which can result in severe personal injury or death GENERAL PRECAUTIONS e Keep ABC fire extinguishers handy e Make sure all fasteners are secure and torqued properly e Keep the engine and its compartment clean Excess oil and oily rags can catch fire Dirt and gear stowed in the compartment can re strict cooling air e Before working on the engine disconnect the negative battery cable at the battery to prevent starting e Use caution when making adjustments while the engine is running hot moving or electri cally live parts can cause severe personal in jury or death e Used engine oil has been identified by some state and federal agencies as causing cancer or reproductive toxicity Do not ingest inhale or contact used oil or its vapors e Benzene and lead in some gasolines have been identified by some state and federal agencies as causing cancer or reproductive toxicity Do not to ingest inhale or contact gasoline or its vapors e Do not work on the engine when mentally or physically fatigued or after consuming alcohol or drugs e Carefully follow all applicable local state and federal codes This engine is not designed or intended for use in aircraft Such use can lead to engin
17. highly flammable and can cause severe personal injury or death Let the engine cool and close any fuel line shutoff valve before disconnecting the fuel line from the filter Do not smoke if you smell gasoline or are near fuel tanks or gasoline burning equipment or are in an area sharing ventilation with such equipment Keep flames sparks pilot lights electrical arcs and arc producing equipment and all other sources of ignition well away SPARK ARRESTOR CLEANING Refer to Table 2 for scheduled spark arrestor cleaning floorcare engines To clean the spark arrestor remove the retaining screw and pull it from the muffler Use a wire brush or compressed air to clean the spark arrestor Always wear safety glasses when using compressed air to prevent severe eye damage FUEL FILTER FIGURE 9 GASOLINE FUEL FILTER ARRESTOR FIGURE 10 SPARK ARRESTOR Adjustments CARBURETOR ADJUSTMENTS These engines have precision manufactured car buretors which are not adjustable CHOKE CABLE ADJUSTMENT GASOLINE ENGINES Referring to Figure 11 reconnect and reclamp the choke cable as follows 1 Stop the engine and disconnect the spark plugs and if so equipped the battery nega tive cable Accidental starting of the en gine can result in severe personal injury or death Always disconnect the spark plug
18. if this is the first start of the day and add oil as necessary Starting without oil will cause severe engine damage Keep the oil level between the Full and Add marks Fill up with fuel if necessary and open any fuel shutoff valve Connect only to the vapor withdrawal fitting on an LPG container Disengage the clutch if so equipped Pull the choke knob out to its full choke posi tion An LPG engine does not have a choke Note Try starting without the choke in warm weather or when the engine is warm If the equipment has a throttle knob or lever push it to the middle of its speed range Turn the ignition start switch to its start posi tion and hold it there until the engine starts Do not crank for more than 30 seconds at a time Wait at least one minute between crankings See Troubleshooting if the engine does not start after several tries Gasoline Engine As the engine starts keep your hand on the choke knob slowly pushing it to wide open but pulling back as necessary to keep the engine running smoothly The colder the weather the longer it will take Do not operate the equipment until the engine runs smoothly with the choke wide open Floor Care Engine Operate the equipment as intended The emissions warning light on the electronic control unit should go off in about 30 seconds after the engine starts If the light comes on and the engine shuts down do not restart the engine See Troub
19. le shooting If the emissions warning light comes on and the engine shuts down emissions of deadly carbon monoxide gas could be excessive Do not restart the engine See Troubleshooting STOPPING Turn the ignition start switch to OFF and close the LPG tank shutoff valve lf this is a gasoline engine and the fuel tank is higher than the engine close the manual shutoff valve in the supply line ENGINE BREAK IN Engine break in as a result of proper care during the first hours of operation of a new or rebuilt en gine results in the ideal fitting of all internal moving metal parts which is essential for top engine per formance For controlled engine break in 1 Operate the equipment as it is intended to be operated However for the first 3 hours if possible operate the equipment at about half the available engine power occasionally op erating at full engine power for brief periods Also if possible avoid prolonged low speed low power operation during engine break in 2 Proper engine oil p 7 is especially critical during break in because of the higher engine temperatures that can be expected Change the oil if it is not appropriate for the ambient temperatures during the break in period Table 1 3 Check the oil level twice a day or after every 4 hours of operation during the first 25 hours of operation 4 Change the oil and oil filter after the first 25 hours of operation 5 On a floorcare engine have
20. leaks around the drain plug and oil filter Tighten only as necessary to eliminate leaks 13 AIR CLEANER MAINTENANCE Refer to Table 2 for scheduled foam wrapper maintenance and air cleaner element replace ment See Figure 6 Foam Wrapper Maintenance Do not remove the inner air cleaner cover when cleaning or replacing the foam wrapper only Wash the foam wrapper in water and detergent squeeze it dry like a sponge rinse with clean water and let it dry Replace a foam wrapper that is torn or stretched Do not oil the foam wrapper on a floorcare engine Oil can cause the engine to run rich and shut down Floorcare Engines To install stretch the foam wrapper over the paper air cleaner element not leaving any exposed paper pleats Do not oil Non Floorcare Engines Coat the wrapper even ly with one tablespoon 14 grams of SAE 30 en PULL CRANKCASE BREATHER TUBE OUT WHEN REMOVING INNER COVER INNER NUT gine oil Knead the oil into the wrapper and wring out the excess Too heavy a coat will restrict air flow and cause loss of engine power To install stretch the foam wrapper over the paper air cleaner element not leaving any exposed paper pleats Air Cleaner Element Replacement To keep anything from entering the carburetor and engine while the air cleaner element is off place a piece of duct tape over the opening or close the choke if so equipped Remove the outer cover and wipe away loose dust a
21. leaner black smoke b Readjust the choke cable gasoline engines See Adjustments 6 The engine misfires a Replace the spark plugs Specifications Horizontally Opposed 2 Cylinder 4 Stroke Cycle Spark Ignited Side Valve Air Cooled Vertical Shaft Displacement Oil Capacity with filter Intake Valve Clearance cold Exhaust Valve Clearance cold 0 013 inches 0 33 mm Engine Type Spark Plug Gap 0 025 inches 0 64 mm Spark Plug Tightening Torque 11 Ibs ft 14 N m Ignition Timing non adjustable electronic ignition SREE LPG Fuel Supply at the inlet to the engine Vapor Withdrawal at LPG Container Pressure gas pressure regulator 20 200 psi 138 1380 Pal See Periodic Maintenance for oil filling instructions 20 Information for California Engine Users These engines meet the requirements of Califor nia s Exhaust Emissions Standards for 1995 and later for Utility and Lawn and Garden Equipment Engines As a California user of these engines please be aware that unauthorized modifications or replace ment of fuel exhaust air intake or speed control system components that affect engine emissions are prohibited Unauthorized modification remov al or replacement of the engine label is prohibited You should carefully review Operator Owner Installation and other manuals and information you receive with your engine or equipment If you are unsure that the installation use maintenance
22. n odorless colorless gas Carbon monoxide is poisonous and can cause unconsciousness and death Symptoms of carbon monoxide poisoning include s Dizziness lt Headache e Nausea e Weakness and Sleepiness e Vomiting e Inability to Think Clearly IF YOU OR ANYONE ELSE EXPERIENCE ANY OF THESE SYMPTOMS GET OUT INTO FRESH AIR IMMEDIATELY If symptoms per sist seek medical attention Shut down the en gine and do not operate it until it has been in spected and repaired Make certain the exhaust system is properly installed Inspect it every time the engine is started and after every eight hours of opera tion PRE START CHECKS Never tip the engine on either side Engine oil can enter the air cleaner and cause the engine to run rich and shut down Before the first start of the day and after every eight hours of operation perform the maintenance specified under Periodic Maintenance Check for exhaust and fuel system leaks every time you start the equipment Keep a log of maintenance and hours run and perform any maintenance that may be due If the equipment has been in storage see RETURNING THE ENGINE TO SERVICE Moving parts can cause severe personal injury or death Hot exhaust parts can cause severe burns Stay clear and make sure all guards and shields are secure before starting up the equipment Observe all of the equipment manufacturer s operating instruc tions and safety precautions STARTING Check the oil level
23. n and tighten the positive and negative battery cable con nections at the battery and the engine c Recharge the battery Refer to the equipment or battery manufactur er s recommendations d Change engine oil to oil having the proper viscosity for the ambient temperature See Table 1 3 The engine cranks but fails to start a Check the fuel tank or LPG container and fill as necessary b Check and if necessary reconnect the fuel line to the vapor with drawal fitting on the LPG container c Open any closed fuel shut off valve d Check engine oil level and add oil as necessary e Reconnect the spark plug cables if loose f Readjust the choke cable gasoline engines See Adjustments g Service the air cleaner h Replace the gasoline fuel filter if provided i Clean the air precleaner floorcare engines j Replace the spark plugs 4 The engine runs and then stops a Check the fuel tank or LPG container and fill as necessary On cold days an LPG container may have to be warmed up inside to attain the rate of vaporization necessary to keep up with engine demand b Check and if necessary reconnect the fuel line to the vapor with drawal fitting on the LPG container c Check the engine oil level and add oil as necessary Drain excess oil if the level is above the dipstick Full mark d Readjust the choke cable gasoline engines See Adjustments 5 The engine exhausts a Service the air c
24. nd debris from the air cleaner assembly Remove the inner air cleaner mounting nut and cover Remove the air filter paper element and foam wrapper from the engine Wipe off dust and debris from the air cleaner base Remove any duct tape over the opening and install the new paper element and secure it with the inner cover and mounting nut Reinstall the foam wrap per and outer cover Make sure to reconnect the the crankcase breather tube AIR CLEANER ELEMENT AIR CLEANER ASSEMBLY BASE FIGURE 6 AIR CLEANER ASSEMBLY 14 COOLING SYSTEM MAINTENANCE Refer to Table 2 for scheduled cleaning of the cyl inder cooling fins On floorcare equipment engines remove the cool ing air precleaner element every 4 to 8 hours of op eration and wash it in warm water and mild deter gent Rinse it thoroughly and let it dry before reus ing it Do not oil the element A clogged air precleaner or fly wheel inlet screen can cause the engine to overheat or run rich and shut down Do not operate floor cleaning equipment without the air precleaner in place Keep the cooling fins and air inlet screen clean and wash a pre cleaner regularly as prescribed Use compressed air to clean the cylinder cooling fins Take the following precautions 1 Wear safety glasses Always wear safety glasses when using compressed air to prevent severe eye damage 2 Let the engine cool The temperature stresses caused by cleaning a hot engine can cr
25. otection eat dedtaietitesttelteded ebboas ted 10 Returning the Engine to Service 0 0c cece eee eee 10 PERIODIC MAINTENANCE 0 00 c cece ec eens 11 Daily 8 Hour Maintenance nannan ennaa 12 Engine Oil and Filter Change 2363000 od iced ys hoaea betwee eee oa ed 12 Air Cleaner Maintenance 0c cece eet eee 14 Cooling System Maintenance 2 oci sincdeie dead le dwee tba eeceulaerede 15 Spark Plug Replacement 000s cece e eee eee ees 15 Gasoline Fuel Filter Replacement anana 16 Spark Arrestor Cleaning 0 00 cece ee eee eee eens 16 ADJUSTMENTS ee R R NE RR L RRR A TAR Cher wet eee eer ereEe 17 Carburetor Adjustments narenn errana 17 Choke Cable Adjustment Gasoline Engines nn 17 Engine Speed Adjustment 000 cece eee eee 18 TROUBLESHOOTING eR X 0 9 sie roret dates Rhos E ARR et econ RT E 19 SPECIFICATIONS dices sede eede de Saads cca Seeseseeaciaees 20 INFORMATION FOR CALIFORNIA ENGINE USERS 21 Safety Precautions Thoroughly read the OPERATOR S MANUAL before operating the engine Safe operation and top performance can be obtained only with proper operation and maintenance The following symbols in this Manual alert you to potential hazards to the operator service person and equipment alerts you to an immediate hazard which will result in severe personal injury or death alerts you to a hazard or unsafe practice whic
26. reas Refer to ndustrial Ventilation A Manual of Recommended Practice published by the American Conference of Governmen tal Industrial Hygienists The user is responsi ble for complying with indoor carbon monox ide regulations e Attach a CO monitor to the equipment e Keep air cleaners clean Do not apply oil e Do not run the engine if there is an exhaust leak A leak can cause gases to bypass the catalytic element or change the calibration of the auto shutdown system allowing excessive emissions of CO A leaky exhaust system can result in higher levels of deadly carbon monoxide gas emissions Do not operate the equipment if there is an exhaust leak e Do not tip the engine to either side Tipping the engine can allow oil to enter the air cleaner and cause the engine to run rich and shut down e Do not modify or disable any engine function or system e Keep to the maintenance schedule Ani SS i ems Warming Lig t o FIGURE 4 EMISSIONS WARNING LIGHT FUEL RECOMMENDATIONS Gasoline and LPG are highly flam mable fuels and can cause severe personal in jury or death Do not smoke if you smell gas or gasoline or are near fuel tanks or fuel burning equipment or are in an area sharing ventilation with such equipment Keep flames sparks pi lot lights electrical arcs and arc producing equipment and all other sources of ignition well away Gasoline Engines Use clean fresh
27. sion control devices and systems may be performed by any engine repair establishment or individual However warranty work must be completed by an authorized Onan dealer or distributor Never tip the engine on either side Engine oil can enter the air cleaner and cause the engine to run rich and shut down TABLE 2 PERIODIC ENGINE MAINTENANCE SCHEDULE MAINTENANCE FREQUENCY MAINTENANCE OPERATION ALL ENGINES LH H HH H H CT CTS Cd CCS Check Oil Level X CD TCP SY Cd Cean CyinderCooingrins TTT GL TH H H H e H H CTC C H T PT HH CCS G fe H H H mT CT Cd H Replace Air Cleaner Element amp Foam Wrapper x2 Replace Spark Pugs CT S CT To FLOORCARE ENGINES ONLY CleanAirPrecoaner TT TE S S o Replace LPG Fiter oo o TC S Clean Spark Arrestor Oooo x Adjust Valve Clearance Replace Oxygen Sensor Replace Catalytic Muffler Check for oil fuel and exhaust leaks loose parts and unusual noises and vibrations 2 Perform more often when operating in dusty conditions Perform more often when operating in hot conditions See instructions for battery care provided by the equipment or battery manufacturer Must be performed by a qualified mechanic according to the engine Service Manual Clean more often when running the engine continuously under light load Use a carburetor and combustion chamber cleaner every 200 hours of operation Perform as part of engine break in 11 DAILY 8 HOUR MAINTENANCE
28. the valve clear ance readjusted after the first 25 hours of operation OPERATION IN DUSTY CONDITIONS 1 Keep the engine cooling fins and flywheel air inlet screen and precleaner floorcare clean 2 Perform air cleaner maintenance more often than normal as required See Table 2 3 Change the engine oil and oil filter more often than normal See Table 2 OPERATION IN HOT WEATHER Pay particular attention to the following items when operating the engine in temperatures above 100 F 38 C 1 Keep the engine cooling fins and flywheel air inlet screen and precleaner floorcare clean See to it that nothing obstructs air flow to and from the engine 2 Check the oil level more frequently 3 Change the oil and oil filter more often than normal See Table 2 4 Make sure the engine oil viscosity is appropri ate for the ambient temperatures and change the oil if necessary See Table 1 OPERATION IN COLD WEATHER Note Floorcare engines are designed for indoor use only at normal ambient temperatures Pay particular attention to the following items when operating the engine in temperatures below freezing 1 Make sure the engine oil viscosity is appropri ate for the ambient temperatures and change the oil if necessary Table 1 If the tempera ture drops before you have the chance to change the oil warm up the engine by moving the equipment into a heated space before at tempting to start the engine or change
29. ts obtained from an Onan dealer or distributor are recommended Improper service or replacement of parts can result in severe personal injury or death Service personnel must be qualified to perform electrical and mechanical service EXHAUST NON FLOORCARE ENGINES EXHAUST GAS IS DEADLY The equipment op erator is responsible for checking for exhaust leaks on a daily basis and for having the leaks re paired before operating the equipment Mobile Equipment Do not operate engine powered mobile equip ment inside buildings or other enclosed spaces unless there is ample fresh air ventilation Stationary Equipment The exhaust system of a stationary engine pow ered piece of equipment installed inside a building or other enclosed space must be leak free and car ry all exhaust gases to the outside well away from windows doors vents and other openings IMPORTANT ENGINE INFORMATION ONAN CORPORATION 1400 73rd Ave NE Minneapolis MN 55432 Made in Canada Engine Model P248V L 11610H S N L981234567 0099 2500 01 REFER TO OPERATOR S MANUAL FOR MAINTENANCE SPECIFICATIONS AND ADJUSTMENTS THIS ENGINE MEETS US EPA PHI AND 1995 1999 CALIFORNIA EMISSION REGULATIONS FOR ULGE ENGINES SN5782U1L2AA 782 CC LPG FUEL ONLY FIGURE 1 TYPICAL NAMEPLATE LPG IMPORTANT ENGINE INFORMATION ONAN CORPORATION 1400 73rd Ave NE Minneapolis MN 55432 Made in Canada Engine Model P248V I 11264F S N L981234567
30. turn the oil fill cap Figure 5 counterclockwise and lift it from the 12 fill tube Wipe the dip stick clean and push it back into the oil fill tube until the cap seats and withdraw it to check the oil level Add oil of rec ommended type p 7 if the level is below the ADD mark Drain oil if the level is above the FULL mark Secure the fill cap Too much oil can cause high oil consumption high operating tempera tures and oil foaming Too little oil can cause severe engine damage Keep the oil level between the Full and Add marks on the dipstick ENGINE OIL AND FILTER CHANGE State and federal agencies have determined that contact with used engine oil can cause cancer or reproductive toxicity Take care to limit skin contact and breathing of vapors as much as possible Use rubber gloves and wash exposed skin Refer to Table 2 for scheduled oil change and filter replacement and see Figure 5 1 Run the engine until it is warm Stop the en gine and disconnect the spark plugs and if so equipped the battery negative cable Accidental starting of the en gine can result in severe personal injury or death Always disconnect the spark plugs and the battery negative cable before changing oil 2 Remove the oil fill cap Crankcase pressure can blow hot engine oil out the fill opening causing severe burns Always stop the genset be fore removing the oil fill cap 3 Place a pan under the oil drain opening and
31. unleaded gasoline having a mini mum octane rating Anti Knock Index of 87 During some times of the year only mandated ox ygenated gasolines may be available These are acceptable for use but not preferable Leaded gasoline may be used but will result in the extra maintenance required for removing combustion chamber and spark plug deposits Do not use gas oline or gasoline additives de icers containing methanol because methanol can be corrosive to fuel system components Do not use gasoline or gasoline additives containing methanol because meth anol can be corrosive to fuel system compo nents Avoid using highly leaded gasolines and lead additives because of the extra engine mainte nance that will be required LPG Engines Use clean fresh HD 5 grade liquified petroleum gas or equivalent product consisting of at least 90 percent propane Commercial liquified petroleum gas fuels may contain more than 2 5 percent bu tane which can result in poor fuel vaporization and poor engine starting in low ambient temperatures Note LPG must be supplied from a vapor with drawal fitting on the LPG container at container pressure and connected to the engine fuel cut off solenoid regulator assembly by a hose approxi mately 30 inches 76 cm long ENGINE OIL RECOMMENDATIONS Use premium quality motor oil Look for the API American Petroleum Institute classification and use Class SG or SH oil also SG CD SG CE SH CD or
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