GE A-6451 User's Manual
Contents
1. 9 HOW 10 Service u e Io e seco tnde 5 Service Dealer Location sse 5 GENERATOR FAMILIARIZATION Generator Applicability eese 6 51 uu EE 6 6 Generator AC Connection System 6 OPERATION Generator Control Panel a 7 Optional Remote Start Stop 7 Before Starting the 8 Starting the Generator o 8 9 Stopping the Generator sess 9 Applying Loads to Generator 9 10 Additional Information essere 10 11 SPECIFICATIONS Fuel Requirements eoe ori teet reete tees 12 Fuel CORSURDIOFR u a a ivre 12 Engine Oil Requirements sss 12 Engine SDECIICAIONS ipi Hsc iq 12 Generator Specifications esses 12 Generac NP 50LPG Recreational Vehicle Generator MAINTENANCE Checking Engine Oil Level 13 Change Engine Oil 13 Change Oll Filler s Rasa 13 Ar2. Drs 407 Aluminum with cast iron sleeve of Governor eee Mechanical fixed speed Air Cleaner Paper element with foam pre cleaner GIANG aub e i Un 12 volt DC electric SYSIBIT oeste oar E REED atq RE Solid State Recommended Spark Plugs COMIN DION apikani difetto be oer i RC12YC AC so E 455 65 Spark PIU a cod iot ortae de tel s 0 030 inch 0 76mm Recommended Battery 400 CCA GENERATOR Rotor S 3600 alU M 2 Engine RPM HOMERO 2571 Rated Maximum Continuous AC CUEDUL u ita edP 4500 watts 4 5 kW MOM AGC MM 120 volts Rated Maximum Continuous AC Current 37 5 amperes WEM DH RUE single Biz i e 60 Hertz Battery Charge Voltage 14 VDC Battery Charge Current OS 2 Amps Max VOID ad haba aa tas 197 pounds 93 kg LENO 25 inches 635mm 18 5 inches 470 Helghtu as s uy un
3. A 15 75 inches 400mm The unit is reconnectable to 120 and or 240 volts dual voltage output Rated maximum continuous current at 240 volts is 18 8 amps Recreational Vehicle Generator e 12 This section includes information about simple maintenance which includes the following tasks Checking engine oil level Changing engine oil Changing oil filter Clean change the air cleaner Cleaning the air intake screen e Cleaning spark plug CHECKING ENGINE OIL LEVEL Check engine crankcase oil level at least every eight hours of operation or before you use it Be sure the generator is as level as possible Remove OIL DIPSTICK Figure 7 and wipe it dry with clean lint free cloth Install and tighten oil dipstick then remove again Oil level should be at the dipstick FULL mark If necessary add oil to the FULL mark only DO NOT FILL ABOVE THE FULL MARK Install and tighten oil dipstick before operating the engine NOTE See Engine Oil Requirements on Page 12 for rec ommended oils Figure 7 Oil Dipstick and Oil Fill Cap OIL DIPSTICK CHANGE ENGINE OIL Change engine oil after the first 25 hours of operation after the 25 hour break in period Page 11 Thereafter change oil every 50 operating hours Change oil more frequently if oper ating consistently under heavy load or at high ambient temperatures To change oil proceed as follows Run engine for at least
4. Manual No A6451 Air cooled Recreational Vehicle Generator OWNER S MANUAL SAFETY RULES TROUBLE SHOOTING POWER SYSTEMS Model No 00919 1 Series NP 50LPG THIS SYMBOL POINTS OUT IMPORTANT SAFETY INSTRUCTIONS WHICH IF NOT FOLLOWED COULD ENDANGER THE PERSONAL SAFETY AND OR PROPERTY OF YOURSELF AND OTHERS READ AND FOLLOW ALL INSTRUCTIONS IN THE MANUAL BEFORE ATTEMPTING TO OPERATE THIS UNIT Revision 0 8 12 98 Printed in U S A Generac NP 50LPG Recreationa Vehicle Generator POTENTIAL HAZARD AREAS OF THE RECREATIONAL VEHICLE SAFETY SHOULD BE STRESSED TO ALL THE MANUFACTURER SUGGESTS THESE RULES FOR SAFE OPERATION COPIED AND POSTED OPERATORS AND POTENTIAL OPERATORS OF THIS EQUIPMENT WARNING The engine exhaust from this product contains chemicals known to the State of California to cause cancer birth defects or other reproductive harm Study these SAFETY RULES carefully before installing operating or ser vicing this equipment Become familiar with the Owner s Manual and with the generator The generator can operate safely efficiently and reliably only if it is properly installed operated and maintained Many accidents are caused by failing to follow simple and fundamental rules or precautions Generac cannot possibly anticipate every possible circumstance that might involve a hazard The warnings in this Manual an
5. 91638 91633 92586 91161 91636 91637 91649 91645 22473 22097 A7029 Recreational Vehicle Generator 60 29 1 MJ MJ N ASSEMBLY SPRING ADJ BRACKET BOLT TAPTITE M8 x 15 LG NUT LOCKING M5 0 8 LEVER GOVERNOR ARM BOLT HEX HD W LOCK WASHER M6 x 30 LG NUT M6 SPECIAL SPRING GOVERNOR BELLCRANK GOV RODS WASHER FELT BOLT SHOULDER M6 x 15 LG ROD LINKAGE GOV LEVER BELLCRANK ROD LINKAGE BELL CRANK CARB SPRING A L GOV LEVER BELLCRANK BREATHER TUBE M6 FLAT WASHER M6 LOCK WASHER NYLON WASHER 31 x 26 x 13 CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT YOUR WARRANTY RIGHTS AND OBLIGATIONS The California Air Resources Board CARB and Generac Corporation are pleased to explain the Emission Control System W ranty on your new recreational vehicle generator engine In California new recreational vehicle generator must be designed built and equipped to meet the State s stringent anti smog standards Generac Corporation will warrant the emission control system on your recreational vehicle generator for the periods of time listed below provided there has been no abuse neglect unapproved modification or improper maintenance of your recreational vehicle generator engine Your emission control system may include parts such as the carburetor ignition system and exhaust system Also included may be the compression release system and other
6. 1 OHM 25 E it SC STARTER CONTACTOR SM STARTER MOTOR SWI SWITCH START STOP WHITE 120 20A psp SV SWITCH FUEL PRIMER GREEN 1 SPARK PLUG 1 CYL TERMINAL 4 e 180v 30A EE3 CONNECTOR NEUTRAL CONNECTION BY CUSTOMER Recreational Vehicle Generator J m 18 Generac NP 50LPG Recreational Vehicle Generator ELECTRICAL DATA Drawing No 94210 SUPPLIED BY CUSTOMER SUPPLIED BY CUSTOMER O O 1 BATTERY s Z 4 Recreational Vehicle Generator 19 Generac NP 50LPG Recreational Vehicle Generator EXPLODED VIEW BASE AND PULLEYS Drawing No 95865 Recreational Vehicle Generator a _ 20 Generac NP 50LPG Recreational Vehicle Generator REPAIR PARTS BASE AND PULLEYS Drawing No 95865 25 CAPSCR HEX 3 8 24 1 42633 66 STRAIGHT BARB FIT 1 2 x 3 8 63463 ITEM DESCRIPTION PART NO QTY ITEM DESCRIPTION PART NO QTY 1 BASE MOUNTING 92603 1 35 COVER PLATE EXH 92203 1 2 GROUND CABLE 90141 1 36 ADAPTOR UNIVERSAL 91146 1 3 MOUNT RUBBER 46911 4 41 CLAMP EXH 1 1 4 DIA 96289 1 4 CAPSCREW 3 8 16 x 1 2 25017 8 42 HHCS amp LOCKWASH M6 1 0x 16 79246 8 5 LOCKWASHER M10 46526 10 43 GASKET EXH PIPE 77643 2 6 LOCKWASHER M8 22129 4 44 FOAM TAPE 29289 7 SKID RUBBER MOUNT 72391 2 45 LUG GROUNDING 62684 1 8 SAFETY BOL
7. Air Intake Screen CLEAN AREAS ENGINE SPARK PLUG Clean engine spark plug and set gap to 0 030 inch 0 76mm every 100 hours of operation Figure 12 Clean by scraping or wire brushing and washing with commercial solvent DO NOT BLAST CLEAN SPARK PLUG CAUTION Sparking can occur if wire terminal A does not fit firmly on spark plug terminal end If necessary reform wire terminai to obtain a tight fit Figure 12 Setting Spark Plug Gap SET PLUG GAP AT 0 030 inch 0 76 mm fo EN gt t wQ Recreational Vehicie Generator Esc 0 14 Em m m E SPARK ARRESTOR MUFFLER If the generator is not equipped with a spark arrestor exhaust muffler and is to be used on any forest covered brush cov ered or grass covered unimproved land you may have to install a spark arrestor The spark arrestor must be maintained in effective working order by the vehicle owner operator For assistance in ordering installing and maintaining spark arrestor exhaust mufflers contact your nearest authorized service facility Exhaust mufflers supplied by Generac are spark arrestor types Generac exhaust muffler for recreational vehicle gen erators do not have a spark arrestor screen but are of the more efficient toroid or swirl type To remove carbon and com bustion deposits from such mufflers remove the PLUG from the muffler and run engine for about 15 minutes Shut engine d
8. Glean uu aono lt e ii ttes 14 Clean Air Intake Sereen 14 Engine Spark uoo etit is ini ata rea atre e tid 14 Spark Arrestor Muffler 15 Cleaning the Generator 15 SERERE 15 Major Service 16 DIVE BO l 16 Exercising the Generator 16 Out of Service 16 Return the Unit to Service after Storage 16 TROUBLESHOOTING 17 ELECTRICAL DATA 18 19 REPAIR 20 29 EMISSIONS WARRANTY 30 31 BASIC 3 YEAR WARRANTY back cover Recreational Vehicle Generator READ THIS MANUAL READ THIS MANUAL THOROUGHLY If you don t understand any portion of this manual contact Gen erac for a demonstration of actual starting operating and servicing procedures Throughout this publication and on tags and decals affixed to the generator DANGER WARNING and CAUTION blocks are used to alert you to special instructions about a particular oper ation
9. The generator engine gives off DEADLY carbon monoxide gas through its exhaust system This dangerous gas if breathed in sufficient con centrations can cause unconsciousness or even death This exhaust system must have been properly installed in strict compliance with applicable codes and standards Following installation you must do nothing that might render the system unsafe or in non compliance with such codes and standards The generator compartment must be com pletely vapor sealed from vehicle interior There must be no possibility of exhaust fumes entering the vehicle interior Never operate this equipment with a leaking or defective exhaust system Never use the generator or any of its parts as a step Stepping on the unit can stress and break parts and may result in dangerous operating conditions from leaking exhaust gases fuel leakage oil leakage etc Do not smoke around the generator Wipe up any fuel or oil spills imme diately Never leave oily or fuel soaked rags in the generator compartment or on the generator itself Keep the area around the generator clean and free of debris Adequate ventilation is required to expel toxic fumes and fuel vapors from the generator compartment Do not alter the installation of this equip ment in any manner that might obstruct air and ventilation openings Such openings must be kept clear and unobstructed A Some generators may use LP gas propane as a fuel LP gas is highly EXPLOSIVE T
10. battery cables Battery is discharged or defective Defective starter contactor Defective starter motor Defective Controller circuit board Out of fuel Fuel shutoff valve is closed Defective Controller circuit board Spark plug defective Defective ignition coil on engine Defective carburetor Dirty air cleaner Fuel solenoid is defective Dirty air cleaner Defective spark plug Defective ignition coil Engine oil level is low Engine is overheated Defective Low Oil Pressure Switch Defective Controller circuit board Check main line circuit breaker Transfer switch if so equipped is set to wrong position Failure in vehicle electrical system Generator component failure Recreational Vehicle Generator 17 1 2 Do Go moo wol mo dq Ng Replace fuse Tighten clean or replace as necessary Recharge or replace battery Replace if defective Replace if defective Replace if defective Replenish fuel Open fuel shutoff valve Replace if defective Clean regap or replace plug Replace if defective Replace if defective Clean or replace elements as needed Replace or repair Clean or replace elements as needed Clean regap or replace plug Replace if defective Check oil and add oil as needed Check cooling system for blockage Replace defective switch Replace defective board Reset to ON or CLO
11. emission related assemblies Where a warrantable condition exists Generac Corporation will repair your recreational vehicle generator engine at no cost to you for diagnosis parts and labor MANUFACTURER S EMISSION CONTROL SYSTEM WARRANTY COVERAGE Emissions control systems on 1995 and later model year recreational vehicle generator are warranted for two years as hereinafter noted If during such warranty period any emission related part on your engine is defective in materials or workmanship the part will be repaired or replaced by Generac Corporation OWNER S WARRANTY RESPONSIBILITIES As the recreational vehicle generator engine owner you are responsible for the performance of the required maintenance listed in your owners manual Generac Corporation recommends that you retain all receipts covering maintenance on your recreational vehicle generator engine but Generac Corporation will not deny warranty solely due to the lack of receipts or for your failure to provide written evidence of the performance of all scheduled maintenance As the recreational vehicle generator engine owner you should however be aware that Generac Corporation may deny you warranty coverage if your recreational vehicle generator engine or a part thereof has failed due to abuse neglect imprope N maintenance or unapproved modifications You are responsible for presenting your recreational vehicle generator engine to a Generac Corporation Authorized Service Ou
12. fitness for a particular purpose to the extent permitted by law The duration of any implied warranties which cannot be disclaimed is limited to the time period one year as specified in the express warranty Liability for consequential incidental or special damages under any and all warranties is excluded to the extent permitted by law Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or consequential damages so the above limitations or exclusions may not apply to you This warranty gives you specific legal rights and you may also have other rights which vary from state to state For service see your nearest GENERAC authorized warranty service facility or call 1 800 526 2871 Warranty service can be performed only by a GENERAC authorized service facility This warranty will not apply to service at any other facility At the time of requesting warranty service evidence of original purchase date must be presented Generac Corporation oN Box8 Waukesha WI 53187 Telephone 414 473 5514Fax 414 472 6505
13. in the storage tank LP gas may consist of propane butane or a mixture of two gases Using fresh HD 5 LP is recommended Fuel should not contain more than 2 5 butane Propane vaporizes at tem peratures as low as 20 F 29 C but butane returns to its liquid state when the temperature drops below about 32 F 096 For that reason a higher ratio of propane is desired in the gas mixture when temperatures drop below freezing FUEL CONSUMPTION CUBIC FEET PER HOUR The following lists the approximate amount of fuel the unit con sumes at 10096 rated load Actual fuel consumption may vary depending on BTU content of fuel applied load ambi ent conditions engine condition etc PODANE enden ue 47 cubic ft per hour ENGINE OIL REQUIREMENTS Use only high quality detergent oil rated with ser vice classification SF SG or SH The recommended oil weights include the following During summer months SAE 30 An acceptable substitute is SAE 10W 30 During winter months SAE 5W30 DO NOT USE SAE 10W 40 Crankcase and oil filter capacity is about 1400ml or about 1 5 U S quart Use no special additives See Maintenance section for oil level check and fill proce dures SPECIFICATIONS ENGINE Type OL EDOIDO Pa ode beri GN 410 single cylinder Metodo atn C a en i Pula Air cooled Rated Horsepower esee 15 at 4200 RPM
14. loads can require up to 4500 watts of 4 5kW of power but cannot exceed 37 5 AC amperes of current at 120 volts or exceed 18 8 AC amperes at 240 volts CAUTION Do not overload the generator Some installations may require that electrical loads be alternated to avoid overloading Applying exces sively high electrical loads may damage the generator and may shorten its life Add up the rated watts of all electrical lighting appliance tool and motor loads the generator will power at one time This total should not be greater than the wattage capacity of the generator If an electrical device nameplate gives only volts and amps multi ply volts times amps to obtain watts volts x amps watts Some electric motors require more watts of power or amps of current for starting than for continuous operation INSTALLATION This Owner s Manual has been prepared under the assump tion that a competent qualified technician installed the generator We also assume the installer complied with all applicable codes standards and regulations pertaining to installation Generac NP 50LPG Recreational Vehicle Generator Owners Operators must make sure to do nothing that might render the installation unsafe or in noncompliance with applic able codes standards and instructions They should be sure the unit has been installed to allow adequate ventilation for cool ing and exhaust air SAFETY Before attempting to use the generator set carefully
15. read GENERAL SAFETY RULES inside the cover of this Manual Comply strictly with these RULES to prevent accidents and damage to equipment and or property We suggest that copy ing and posting GENERAL SAFETY RULES in potential hazard areas of the vehicle Stress safety to all operators and poten tial operators of this equipment GENERATOR AC CONNECTION SYSTEM This generator set is equipped with dual stator AC power windings These two stator windings supply electrical power to customer electrical loads by means of a dual 2 wire con nection system Note however that neutral is grounded The generator may have been installed so that the unit powers 120 volt AC loads Figure 1 or you can wire them to connect both 120 and or 240 voit AC electrical loads Be sure to install jumper wire between the circuit breakers when reconnecting for 120 240 volts Refer to the Installation Manual for more information Figure 1 Connections for 120 Volts Only e Recreational Vehicle Generator GENERATOR CONTROL PANEL Mounted on the generator control panel Figure 2 are the fol lowing features Figure 2 Generator Control Panel FUSE MAIN START 15 BREAKER FUEL PRIMER Before starting a cold engine if it has not been started in more than two weeks you must press this switch for approximately 5 seconds to bring fuel from the tank to the fuel regulator This rocker type switch spring
16. supply the complete model number and serial number of your unit as given on its data decal The warranty on your generator is included in the Owner s Manuali as well as listings for repair parts SERVICE DEALER LOCATION TO LOCATE THE NEAREST GENERAC SERVIC ING DEALER PLEASE CALL OUR 800 NUMBER ONLY DEALER LOCATION INFORMATION CAN BE OBTAINED AT THIS NUMBER 1 800 333 1322 Recreational Vehicle Generator um 5 GENERAL INFORMA GENERATOR APPLICABILITY These generators have been designed and manufactured for supplying electrical power for recreational vehicles You should not modify the generator or use it for any application other than for what it was designed If there are any questions pertain ing to its application write or call the factory Do not use the unit until you have been advised by a competent authority been properly installed in compliance with 1 ANSI 119 2 1975 NFPA 501C 1974 STANDARD FOR RECREATIONAL VEHICLES PART INSTALLATION OF ELECTRICAL SYSTEMS The generator must also have been installed in strict compliance with the manufacturer s detailed instal lation instructions After installation do nothing that might render the unit in non compliance with such codes standards and instructions DANGER For fire safety the generator must have You can use this generator to supply electrical power for oper ating 120 240 volts single phase 60 Hertz AC electrical loads These
17. 000 Hair uu DR AERE 1200 Table Saw 10 1750 to 2000 Hang Dili uma a umasa as G 1100 Television icai iter tee QU d date cts 1750 to 2000 Hedge iua actori ont p RES SR RI HERE 450 Allow 2 1 2 times the listed watts for starting these devices n EO pet cn des 500 Recreational Vehicle Generator Generac NP 50LPG Recreational Vehicle Generator 4 Induction type motors such as those that run the vehicle s furnace fan refrigerator air conditioner etc need about 2 1 2 time more watts of power for starting than for running for a few seconds during motor starting Be sure to allow for this when connecting electrical loads to the generator First figure the watts needed to start electric motors in the system To that figure add the running wattages of other items that will be operated by the generator Do not apply heavy electrical loads for the first two or three hours of operation ADDITIONAL INFORMATION This section discusses some the the engine protective devices overload protection and breaking in a new generator AUTOMATIC LOW OIL PRESSURE SHUTDOWN The engine is equipped with a normally closed N C oil pres sure switch Figure 4 Engine oil pressure holds the switch open during cranking and operation Should oil pressure drop below a pre set level the switch contacts close and the en
18. 1 4 NPT COVER BASE STARTER SIDE COVER BASE CARB SIDE WRAPPER ENGINE SPARK PLUG WRAPPER STARTER SIDE WRAPPER REAR GEAR CASE WRAPPER CARB SIDE ASSEMBLY WIRE STARTER 16 SUPPORT OIL FILTER BUSHING RUBBER WASHER RUBBER BOLT SHOULDER M6 x 15 LG BOLT SOCKET HD CAPSCR M8 1 25 x 30 LG GASKET OIL FILTER SUP PORT SWITCH OIL PRESSURE 10 PSI SWITCH OIL TEMPERA TURE SCREW PHILIPS PAN HD MACH M3 05 x 5 LG LOCK WASHER M3 FILTER OIL ENGINE LONG BLOCK GN410VSRV KEY WOODRUFF 4 x 19 DIA Generac NP 50LPG Recreational Vehicle Generator EXPLODED VIEW GN 410 ENGINE Drawing No A7894 30 c lt 46 55 43 5 48 77 4 2 amp LN ri MGR L 2 29 01 E Z 10 lt 36 T 33 55 51 P df 3 32 55 __ 60 Sy 58 ib Recreational Vehicle Generator a 26 n5 23 24 25 26 27 28 30 31 32 33 PART 21533 71979 71978 71980 71983 217138 73144 73149 96699 76701 45756 80308 80309 80338 26925 83897 72694 72696 78672 78694 83907 21714 86514 88515 86516 86517 89673 91308 A7081 72655 76361 5776 7308 AD Hf CO ADS AD A DESCRIPTION PISTON RING SET CONNECTING ROD BOLT CONNECTING ROD WITH CAP amp BOLT PISTON PIN PISTON PIN RETAI
19. 5 minutes then shut down Generac NP 50LPG Recreational Vehicle Generator With engine still warm remove oil drain cap from oil drain hose Figure 8 Drain oil completely into a suitable con tainer Figure 8 Location of Oil Drain Cap D i nm TIT When oil has drained install and tighten oil drain cap Remove oil fill cap and fill crankcase with the recommended oil see Page 12 The engine crankcase can hold about 1 4 liters DO NOT FILL ABOVE FULL MARK Install and tighten oil dipstick and oil fill cap before operat ing engine CHANGE OIL FILTER Change engine oil filter after the first 25 hours of operation every 100 operating hours thereafter Turn oil filter counterclockwise to remove Figure 9 Coat gasket of new filter with engine oil Turn new filter clockwise until its gasket contacts lightly with the filter adapter Then tighten with an additional 3 4 to one turn by hand Run engine and check for leaks NOTE Check oil level and fill to full mark after checking for leaks Filter will retain some oil Figure 9 Engine Oil Filter Recreational Vehicle Generator ENGINE AIR CLEANER Clean and re oil the foam pre cleaner every three months or every 25 operating hours whichever comes first Service more frequently if operating under extremely dusty or dirty con ditions Figure 10 Remove both screws to loosen cover Remove the COVER FOAM P
20. 52 1 72 M6 LOCK WASHER 22097 4 33 CAPSCR M5 0 80 x 80MM 77682 1 73 M6 HEX NUT 49813 4 34 SPRING GENERATOR SETMT 75242 4 76 M6 x 16 HEX HD CAPSCR 47411 2 Recreational Vehicle Generator n 21 o xs Drawing No 94106 TO ENGINE GROUND Mer cam SAN e a Y P Recreational Vehicle Generator 22 Generac NP 50LPG Recreational Vehicle Generator REPAIR PARTS ALTERNATOR AND PANEL ITEM DESCRIPTION PART NO QTY ITEM DESCRIPTION PART NO QTY 1 Lower Bearing Carrier 75995 1 36 Vibration Mount 82737 4 2 50 Rotor Assembly 92605H 1 37 M6 1 0 Hex Nut 49813 4 3 50 Stator Assembly 92604H 1 38 M5 0 8 x 16 Capscrew 55440 1 4 Ball Bearing 73159 1 39 M3 Lock Washer 43182 2 5 Ball Bearing 31971 1 40 M5 Special Lock Washer A8475 1 6 Upper Bearing Carrier 72379B 1 41 2 5A ON Circuit Breaker 53623 1 7 Stator Stud 77006 4 42 M5 Shakeproof Washer 22769 1 8 8 1 25 Flange Lock Nut 52858 8 43 Regulator Voltage 83049 1 9 Brush Holder 66386 1 44 M5 Lock Washer 22152 6 10 5 0 8 x 16 Taptite 66849 2 45 M5 0 8 Hex Nut 51716 4 11 Nylon Washer 27756 4 46 20 Circuit Breaker 90144 1 12 Generator Top Housing 86314 1 47 30A All Units Cir Breaker 90145 1 13 Resistor 75234 1 48 6 32 w Lockwasher Screw 25105 4 14 M6 Flat Washer 22473 3 49 Panel Cover 86315 1 15 M6 Lock Washer 22097 5 50 M4 0 7 x 16 Screw w Lock 90734 4 16 M6 1 0 x 60 Capscrew 74095 1 Washer amp Flat Was
21. 98769 65852 91646 8600 92079 22717 A 73132 91643 22717 B 22129 42907 57821 59637 48031 21544 74908 40976 25034 35467 27738 A 55934 T kb anh Drawing No A8058 PART NO QTY DESCRIPTION 91519 91520 91648 43790 47290 35461 69811 90951 90952 91137 90954 90955 90956 74260 10 90892 91159 91160 91161 49821 86999 60108 75281 74027 43182 70185 A7629 82774 ITEM SCROLL FLYWHEEL 30 SCREW TAPTITE M6 1 0 x 31 10 LG SCREW TAPTITE M6 1 0 x 32 12 LG FLYWHEEL 21 DEG 33 WASHER BELLVILLE M20 34 NUT M20 x 1 5 35 3 8 SPECIAL LOCK WASHER 36 SCREW CRIMPTITE 10 37 24 x 5 LG COVER TOP FLYWHEEL _ 38 NP50 39 CLIP HOSE RETAINER DEFLECTOR EXHAUST 40 PORT 41 ASSEMBLY IGNITION COIL SCREW TAPTITE M6 1 0 x 42 25MM 43 GROMMET RUBBER BOOT SPARK PLUG 44 BRACKET INTAKE MANI 45 FOLD SUPPORT 46 GROMMET RUBBER 47 LOCK WASHER M8 CAPSCR HEX HD M8 48 1 25 x 16 LG CAPSCR HEX HD M8 49 1 25 x 40 LG SCREW TAPTITE 3 8 16 x 50 75 LG HOSE CLAMP 51 MOTOR STARTER 12VOLT SCREW TAPTITE M5 0 8 x 52 10 LG SOCKET HD CAPSCR 53 8 1 25 x 20 LG 54 PLUG BUTTON 1 06 55 CLOSE NIPPLE 3 8 NPT PIPE TEE 3 8 NPT 56 CLAMP VINYL COATED Recreational Vehicle Generator a 25 1 TUBE DIPSTICK ASSEMBLY CAP AND DIP STICK OO RING DIA 14 x 3 WALL ELBOW 3 8 1 0 BRASS HOSE 3 8 1 0 BARB FITTING 1 4 NPT 3 8 HOSE CAP
22. Generator Ea The voltage regulator also incorporates a voltage surge pro tection circuit This circuit prevents troublesome surges in the generator AC output voltage Voltage surge is a common cause of damage to electronic equipment 25 HOUR BREAK IN PERIOD The first 25 hours of operation is the break in period for the generator Properly breaking in the generator is essential to minimize fuel consumption and provide maximum engine per formance During this 25 hour break in period follow this procedure Run the unit at varying electrical loads to help seat engine piston rings properly For the 75 hour operation following the break in period avoid light electrical loads Load the generator at 50 or more of its rated wattage capacity Repeated light loads during these 75 hours can cause improper seating of engine piston rings resulting in blowby and high oil consumption Check engine oil level frequently Add oil if needed It is normal for the generator engine to consume more oil than is normal unti the piston rings have properly seated After operating the unit for 25 hours complete the tasks rec ommended under 25 Hour Check Up 25 HOUR CHECK UP After the 25 hour break in period contact an authorized ser vice facility for the following maintenance The vehicle owner is responsible for any charges Change engine crankcase oil and oil filter Check oil level Inspect cooling and
23. NER CYLINDER HEAD GASKET FLANGED HEX HD CAPSCREW M10 x 100MM HEAD BOLT PISTON CRANKCASE GASKET M6 SCREW THD FORMING BREATHER GASKET BREATHER COVER OIL BREATHER SEPARATOR PIPE PLUG 3 8 TAPPET PIVOT BALL STUD JAM NUT ROCKER ARM SEAL VALVE STEM PUSH ROD GUIDE PLATE ROCKER ARM CYLINDER HEAD W VALVE SEATSAND GUIDES VALVE SPRING RETAINER VALVE SPRING KEEPER EXHAUST VALVE INTAKE VALVE WASHER VALVE SPRING VALVE SPRING CAMSHAFT ASSEMBLY CAMSHAFT SEAL THRUST WASHER PRESSURE RELIEF BALL GOVERNOR SPOOL ITEM 35 36 37 39 40 41 42 43 44 45 46 47 48 49 50 51 57 58 59 60 61 63 64 65 PART 78645 78691 74908 83912 5771 B2104 83981A 72654 78658 78659 78699B 78699C 83948 88590 89288C 84430 86002 86026 88396B 90416 90747 71987 92362 79246 83921 77158 80342 76329 86254 93064 Recreational Vehicle Generator a gt gt Drawing No A7894 DESCRIPTION GOVERNOR RETAINER C RING OIL PRESSURE SPRING RETAINER M5 0 80 x 8MM SCREW THD FORMING GOVERNOR GEAR ASSEMBLY OIL PRESSURE SPRING SPRING WASHER OIL SUMP SLEEVE BEARING GOVERNOR ARM R PIN THRUST WASHER SLEEVE DOWEL PIN DIA 12 SLEEVE DOWEL PIN DIA 14 GOVERNOR ARM DOWEL PIN DIA 12 x 20 LONG CRANKCASE SUB ASSEMBLY BALANCER OUTER GEROTOR I
24. NNER GEROTOR PUSH ROD CRANKSHAFT ASSEMBLY BREATHER VALVE ASSEMBLY ROCKER COVER GASKET ROCKER COVER W FILL M6 1 00 x 16MM PAN HD SCR AND LOCKWASHER BEARING TUBE SHAFT OIL SCREEN PICKUP ASSEMBLY O RING 141 0 x 2 4 THICK OIL FILL PLUG O RING 17 81 0 x 2 4 THICK OIL FILL CAP ASSEMBLY Generac NP 50LPG Recreational Vehicle Generator EXPLODED VIEW ENGINE ACCESSORIES Recreational Vehicle Generator Eg 28 Drawing No 95866 ITEM PARTNO QTY DESCRIPTION 1 ow O0 O Q 11 12 13 14 15 16 17 18 90896 91039 68527 72347 89228 A2775A 90970 73108C 91204 59635 66476 92695 73111 81646 73104 B 78609 20139 91554 91554B NJ N MANIFOLD INTAKE GASKET MANIFOLD HEAD BOLT HEX HD CAPSCR amp LOCK WASH M6 1 0 x 20 LG SPARK PLUG CHAMP RC12YC GASKET CARB MANIFOLD L P CARBURETOR GASKET CARB AIR FILTER BASE AIR FILTER PLATE CARB SHIELD SCREW PLASTITE 8 x 37 LG BOLT HEX HD CAPSCR amp LOCK WASHER M6 x 12 LG BOLT CARB MOUNT 80 LG FILTER AIR PRE CLEANER AIR FILTER COVER AIR FILTER BOLT AIR FILTER COVER SNAP BUSHING DECAL A C DATA NP 50G 360 ENGINE ONLY DECAL A C DATA NP 50G 410 ENGINE ONLY Drawing No 95866 ITEM PART QTY DESCRIPTION 39 40 41 42 43 44 45 46 47 48 49 50 52 53 54 56 92164 83512 83503 91916 83532 86681
25. RE CLEANER and PAPER FILTER Remove foam pre cleaner from cover Wash foam pre cleaner in liquid detergent and water Wrap foam pre cleaner in a cloth and squeeze dry Saturate foam pre cleaner in engine oil Squeeze to remove excess oil Do not twist foam pre cleaner Install foam pre cleaner into cover followed by paper filter Install cover foam pre cleaner and paper filter Tighten both screws to retain Once each year or every 100 hours of operation whichever comes first replace the paper filter The new replacement filter must be a flame retardant type Figure 10 Engine Air Cleaner PRE CLEANER CLEAN AIR FILTER Remove air cleaner cover then remove foam pre cleaner service if necessary and remove paper filter Clean air filter by tapping it gently on a solid surface If the filter is too dirty replace it with a new one Dispose of the old filter properly Clean air cleaner cover then insert pre cleaner into cover Next insert new paper filter into cover to hold pre cleaner in place and assemble all of them to the base of the air cleaner CLEAN AIR INTAKE SCREEN Clean all foreign material from air intake screen Figure 11 at least once every 100 hours of operation Clean more often if necessary Inspect the area around the generator exhaust muffler peri odically and remove all grass leaves dirt etc from this area Figure 11 Cleaning
26. SED Reset transfer switch See vehicle manual Contact an authorized service facility Generac NP 50LPG Recreational Vehicle Generator ELECTRICAL DATA Drawing No 94210 BATTERY RED BLK SC 13 _ RED L 16 SM F1 15 14A FP MEME CH 16 J3 Ji 1 2 56 lt Je h J1 3 gt 15 14 4 2 18 2 gt sP J1 5 gt J1 6 gt 17 7 START w O 7 T gt J1 9 2 4 ES HTO 31 10 66 A LDP J1 11 gt 85 HET 85 1 12 0 J1 132 66 REMDTE J1 14 gt gt 18 PANEL J1 15 gt 18 CONNECTOR 0I 1 1 17 e e 14 13 3 18 14 4 gt 2 Z gt uj ty X 45 BETERS TE NAL 77 66 17 0 BATTERY CHARGE WINDING 55 Ri ON 4 POWER WINDING 33 44 LEGEND BCR BATTERY CHARGE RECTIFIER CIRCUIT BREAKER 30A ELECTRONIC 2 CIRCUIT BREAKER 20 VOLTAGE CB3 CIRCUIT BREAKER 2 5 T CH CHOKE HEATER GASOLINE MODELS DNLY S ULATO CS CHOKE SOLENOID GASOLINE MODELS ONLY F1 FUSE 15 a FP FUEL PUMP OR LPG SHUT OFF VALVE 5 9 GT TERMINAL GROUND 4 BLACK 4 METER HOUR OPTIONAL SWITCH HIGH TEMP DIL CLOSES ON HIGH TEMP ON 9 T1 IM IGNITION MAGNETO 2 6 T3 L1 LIGHT RUN OPTIONAL SWITCH LOW PRESSURE CLOSES ON LOW PRESSURED PCB ENGINE CONTROLLER DPE WINDING RI RESISTOR
27. T 5 16 18 x 3 1 2 77603 2 46 WASHER SPRING RETAINER 75237 4 9 NUT HEX 5 16 18 22259 2 47 COVER AIR OPENING 75226 1 10 NUT FLANGED LOCK M8 1 25 52858 6 48 SCREW CRIMPTITE 10 24 5 56893 12 11 8 1 25 6 51730 2 49 GASKET FOAM SLIDE 75229 1 12 SPRING BELT TENSION 29459 2 50 PAN SLIDE 75227 1 13 WASHER SPRING CNTR 75215 2 51 FLAT WASHER M6 22473 4 14 SLIDE NYLON 73146 4 52 COVER EXHAUST OUTLET 72384 1 15 SUPPORT NYLON SLIDE 75209 2 53 LOCK WASHER SHAKEPR M6 22447 2 16 MANIFOLD EXHAUST 91032 1 57 NUT FLANGE 5 16 18 SPECIAL 81105 2 17 GASKET EXHAUST MANIFOLD 90239 1 58 DECAL GROUND 67210A 1 18 CAPSCR M8 1 25 x 65 LG 57636 2 59 SCREW TAPTITE M5 0 8x 10 74908 9 19 GASKET COLLECTOR PAN 92645 1 60 SCREW TAPTITE M6 1 0x10 45756 5 20 COVER PLATE 90859 1 61 FLAT WASHER M10 22131 1 21 PULLEY ENGINE 75224 B 1 62 REGULATOR MOUNT BRACK 78864 1 22 PULLEY ALT 73106 B 1 63 REGULATOR 75211 1 23 BELT POLY V 4L 40 75216 1 64 FUEL SOLENOID 12VDC A2666 1 24 WASHER PULLEY RETAINER 49451 1 65 45 STREET ELBOW 3 4 25425 1 1 1 26 GUIDE BLOWER HOUSING 77017 1 67 HOSE CLAMP SIZE 8 57822 1 27 CAPSCR 3 8 24 x 2 A8250 1 68 FUEL HOSE 1 2 DIA 8 50 74994 1 28 SCREW TAPTITE M6 1 00 x 20 74906 2 69 90 STREET ELBOW 3 4 26307 3 30 HOUSING BLOWER 72375 1 70 PIPE NIPPLE 3 4 3 LG 26881 1 31 SPACER BLOWER HOUSING 73185 1 71 M6 1 0 x 30 CAP SCREW 38750 2 32 LOCKWASHER M5 221
28. d cables for tightness corrosion Clean and or tighten as needed Also check battery fluid level and if necessary fill with DIS TILLED WATER ONLY DO NOT USE TAP WATER IN BATTERY EVERY SIX MONTHS Have battery state of charge and condition checked This should be done with an automotive type battery hydrometer DANGER Storage batteries give off explosive hydrogen gas This gas can form an explosive mix ture around the battery for several hours after charging The slightest spark can ignite the gas and cause an explosion Such an explosion can shatter the battery and cause blindness 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 DANGER Battery electrolyte fluid is an extremely caustic sulfuric acid solution that can cause severe burns Do not permit fluid to contact eyes skin clothing painted surfaces etc Wear protec tive goggles protective clothing and gloves when handling a battery If you spill the fluid flush the affected area immediately with clear water DANGER Do not use any jumper cables or booster battery to crank and start the generator engine If any battery has discharged remove it from the vehicle for recharging Recreational Vehicle Generator hec oco al MAJOR SERVICE MANUAL To obtain a service manual for your generator order it from your deal
29. d on tags and decals affixed to the unit are therefore not all inclusive If you use a procedure work method or operating technique Generac does not specifically recommend you must satisfy yourself that it is safe for you and others You must also make sure the procedure work method or operating technique that you choose does not render the generator to be unsafe Forfire safety the generator must be installed and maintained properly Installation must always comply with applicable codes standards laws and regulations Adhere strictly to local state and national electrical and building codes Comply with regulations the Occupational Safety and Health Administration OSHA established Also the generator and related components must be installed completely in conformance with the manufacturer s instructions and recommendations Following proper installation do nothing that might alter a safe installation and render the unit in non compliance with such codes standards laws and regulations Recreational Vehicle Generator produces extremely high and dangerous electrical voltages and can cause dangerous and possi bly fatal electrical shock Avoid contact with bare wires terminals etc while the unit is running If you must work around an operating gen erator stand on an insulated dry surface to reduce shock hazard Never work on this equipment or handle any electrical device while standing in water while barefoot or whil
30. e hands or feet are wet Dan gerous electrical shock will result Have the generator properly grounded bonded during installation onto the vehicle either by solid mounting to the vehicle frame or chassis or by means of an approved bonding conductor DO NOT disconnect the bonding conductor if so equipped DO NOT reconnect the bonding con ductor to any generator part that might be removed or disassembled during routine maintenance If the grounding conductor must be replaced use only a flexible conductor that is of No 8 AWG copper wire minimum Keep hands feet clothing etc away from drive belts fans and other moving parts of this equipment Never remove any drive belt or fan guards while the unit is operating Inspect the generator periodically Repair or replace all damaged or defective parts immediately A case of accident caused by electric shock shut down the source of electrical power at once If this cannot be done free victim from live conductor AVOID DIRECT CONTACT WITH THE VICTIM Use a dry board dry rope or other non conducting implement to free the victim from live conductor If victim is unconscious apply first aid and get medical help Inspect fuel system frequently for leaks or damage Repair or replace any damaged or leaking component immediately Never attempt to change alter or modify the generator fuel system in any way that might affect safety or compliance with applicable codes and standards A
31. er distributor or contact the factory Be sure to iden your MODEL NUMBER SERIAL NUMBER DRIVE BELT The engine drives the generator rotor by means of a pulley and drive belt arrangement The drive belt and pulleys are war ranted for the life of the generator Drive belt tension was properly adjusted before the unit was shipped from the fac tory If you suspect that drive belt tension is incorrect contact an authorized service facility EXERCISING THE GENERATOR Generac recommends that you start and operate the genera tor at least once every seven days Let the unit run for at least 30 minutes to exercise the engine OUT OF SERVICE PROTECTION If you cannot exercise the generator every seven days and it is to be out of service longer than 30 days prepare the gen erator for storage as follows Start the engine and let it warm up Close the fuel shutoff valve in the fuel supply line and let the engine run out of fuel While the engine is still warm from running drain the oil com pletely Refill crankcase with SAE 10W30 oil having classification For Service SF Attach a tag to the engine indicating the viscosity and clas sification of the oil in the crankcase Generac NP 50LPG Recreational Vehicle Generator e Remove spark plug and pour about two or three table spoons of clean fresh engine oil into spark plug threaded opening Crank engine several times to distribute oil then ins
32. erac s receipt from the original owner a completed Warranty Registration Card prior to the expiration of the warranty period This card is the only valid registration identification and must be presented at time of requesting Warranty service Claims will not be accepted without presentation of this Registration Card THREE YEAR WARRANTY SCHEDULE All generators used in a recreational vehicles shall be warranted for a period of three 3 years or 2 000 hours of operation whichever occurs first All parts labor removal and reinstallation shall be covered for the first two years Parts and labor on selected generator and engine parts shall be covered during the third year or 2 000 hours whichever occurs first These selected parts are limited to the main Rotor and Stator Computer Control board if applicable with regard to the generator the Cylinder Block Cylinder Head Crankshaft Piston Valve Valve Lifter and Manifolds with regard to the engine w 2 The drive belt and pulleys if so equipped on air cooled generator used in recreational vehicles shall be warranted against failure due to defec tive materials or normal usage for the life of the generator For the original owner this drive belt and pulley warranty shall include parts and labor plus 50 00 payment upon return of the failed belt or pulley by the original owner For succeeding owners this drive belt warranty shall cover belt or pulley parts only 3 Rental units demons
33. facturer s application for certification C The ECS Warranty only pertains to emissions related parts on your engine as follows 1 Any warranted emissions related parts which are not scheduled for replacement as required maintenance in the Owner s Manual shall be warranted for the ECS Warranty Period If any such part fails during the ECS Warranty Period it shall be repaired or replaced by Generac Corporation according to Subsection 4 below Any such part repaired or replaced under the ECS Warranty shall be warranted for any remainder of the ECS Warranty Period 2 Any warranted emissions related part which is scheduled only for regular inspection as specified in the Owner s Manual shall be warranted for the ECS Warranty Period A statement in such written instructions to the effect of repair or replace as nec essary shall not reduce the ECS Warranty Period Any such part repaired or replaced under the ECS Warranty shall be warranted for any remainder of the ECS Warranty Period 3 Any warranted emissions related part which is scheduled for replacement as required maintenance in the Owner s Manual shall be warranted for the period of time prior to first scheduled replacemerit point for that part If the part fails prior to the first scheduled replacement the part shall be repaired or replaced by Generac Corporation according to Subsection 4 below Any such emissions related part repaired or replaced under the ECS Warranty shall be warran
34. fety of all vehicle occupants We strongly recommend that the operator read this Owner s Manual and thoroughly under stand all instructions before using this equipment We also strongly recommend instructing other occupants in the vehi cle to properly start and operate the generator This prepares them if they need to operate the equipment in an emergency OPERATION AND MAINTENANCE It is the operator s responsibility to perform all safety checks to make sure that all maintenance for safe operation is per formed promptly and to have the equipment checked by an Authorized Dealer periodically Norma maintenance service and replacement of parts are the responsibility of the Owner Operator and as such are not considered defects in materials or workmanship within the terms of the warranty Indi vidual operating habits and usage contribute to the need for maintenance service Proper maintenance and care of your recreational vehicle generator assures a minimum number of problems and keeps your operating expenses at a minimum See your authorized Dealer Distributor for service aids and accessories HOW TO OBTAIN SERVICE When your recreational vehicle generator requires servicing or repairs simply contact an Authorized Service Facility for assistance Service technicians are factory trained and are capable of handling all of your service needs When contacting an Authorized Service Facility or the factory about parts and service always
35. gine automatically shuts down HIGH TEMPERATURE SHUTDOWN A temperature switch Figure 4 with normally open N O con tacts is mounted near the oil filter If engine temperature were to exceed about 284 F 140 C the switch contacts close and the engine shuts down Figure 4 Switches for Engine HIGH TEMPERATURE SWITCH FIELD BOOST The Controller Circuit Board houses a field boost diode and resistor which are part of a field boost circuit Figure 5 During engine cranking only a positive DC battery voltage is delivered through the diode resistor brushes and slip rings and the generator rotor Application of this voltage to the rotor flashes the field whenever it is started Flashing of the field each time the generator starts makes sure that a suffi ciently strong magnetic field is available to produce pick up voltage in the stator windings Figure 5 Field Boost Circuit OVERVOLTAGE PROTECTION A solid state voltage regulator Figure 6 controls the gener ator s AC output voltage This regulator supplies an excitation current to the rotor By regulating the rotor s excitation cur rent the strength of its magnetic field is regulated and in turn the voltage delivered to connected electrical loads is controlled When the AC frequency is 60 Hz voltage is reg ulated at 120 volts voltage to frequency ratio is 2 to 1 Figure 6 Solid State Voltage Regulator Recreational Vehicle
36. he gas is heavier than air and tends to settle in low areas where even the slightest spark can ignite the gas and cause an explosion Before performing any maintenance on the generator set disconnect its battery cables to prevent accidental start up Disconnect the cable from the battery post indicated by a NEGATIVE NEG or first Reconnect that cable last Recreational Vehicie Generator gt Generac NP 50LPG Recreational Vehicle Generator IDENTIFI CATION RECORD Please record the following information from the generator DATA DECAL or information decal 1 Model Number 2 Serial Number 3 kW Rating 4 Rated Voltage SIDE VIEW 15 6 REFERENCE NUMBER IDENTIFICATION 1 Generator Air Intake Screen 10 Fuel Primer Switch 2 Data Decal 11 Circuit Breakers 3 Oil Dipstick 12 Fuse 4 Oil Filler Cap 13 Engine Start Stop Switch 5 Oil Drain Plug 14 Air Cleaner 6 Oil Filter 15 Remote Panel Receptacle 7 Fuel Regulator 16 Generator AC Output Leads 8 Fuel Solenoid 17 Starter Contactor 9 Fuel Inlet Recreational Vehicle Generator 3 SAFETY RULES uuu nro inside front cover IDENTIFICATION RECORD 3 GENERAL FEATURES 3 READ THIS MANUAL Read This Manual Thourough y 5 Operation and Maintenance
37. her 17 Ground Cable 90141 2 51 M4 Flat Washer 22985 1 18 Shakeproof Lock Washer 22447 1 52 Fuse Holder 32300 1 19 M6 1 0 x 20 Taptite 74906 4 53 15A AGC Fuse 22676 1 20 P C B Controller 94039 1 54 6A Start Stop S P D T 87798 1 21 Starter Cable 10 74260 1 Switch 22 5 16 Lock Washer 22129 2 55 S P D T Switch Fuel Pump 92113 1 23 5 16 18 Hex Nut 22259 2 56 Terminal Block 75210A 1 24 Panel Sheet Metal 86316 1 57 M4 Shakeproof Washer 23365 1 25 4 Pin Connector 53650 1 58 M4 0 7 Hex Nut 51715 1 26 Connector 91915 1 59 30A CB Rating Decal 90157 1 27 Remote Harness 75244 1 60 20A CB Rating Decal 90156 1 28 M6 1 0 x 12mm Capscrew 66476 2 61 Cust Connection Decal 89438A 1 w Lock Washer 62 Hose Clamp 31791 1 29 Starter Contactor 86729 1 63 M5 Flat Washer 23365 1 30 M4 0 7 x 16 Capscrew 75476 3 64 M5 x 10 Taptite 74908 2 31 M4 Lock Washer 22264 4 65 Bushing 23484S 1 32 Battery Charge Rectifier 65795 1 66 Battery Cable Boot 75763A 1 33 M3 0 5 x 15 Capscrew 90987 2 67 Plastic Spacer 94070 1 34 Panel Support Bracket 86317A 1 68 M6 0 8 x 110 PPHMS 94071 1 35 M5 0 8 x 30 Capscrew 75235 3 69 M5 Flat Washer 51713 2 Recreational Vehicle Generator 23 Recreational Vehicle Generator um 26 24 Drawing No A8058 Generac NP 50LPG Recreational Vehicle Generator REPAIR PARTS ENGINE ENCLOSURE ITEM PART NO QTY DESCRIPTION NOOO Go co 90953 45756 90388 91222 D 67198 N 67890 A4456 56893
38. loads using whatever means provided in your vehicle such as a main line circuit breaker or trans fer switch NOTE If starting from the generator panel turn OFF loads by setting the generator s main circuit breaker to OFF or OPEN If starting from a Remote Panel turn OFF loads using whatever means is provided in the vehicle such as a main cir cuit breaker Electrical load circuits will be turned ON after the generator has started stabilized and warmed up 2 If you have not started the engine in more than two weeks press the Fuel Primer switch and hold it for about 30 seconds to prime fuel system However if the engine is warm skip Step 2 Recreational Vehicle Generator EEE 8 3 Hold the engine Start Stop Switch at START to crank engine Release the switch when the engine starts been cranking for 15 seconds release the start stop switch and try again Holding the switch for longer than 15 seconds can damage the starter motor 4 Let the engine run at no load for a few minutes to stabilize and warm up 5 Turn ON electrical loads using whatever means provided such as a main circuit breaker or transfer switch STOPPING THE GENERATOR 1 Turn OFF all electrical loads using whatever means pro vided such as a main circuit breaker or transfer switch 2 Let unit run a few minutes to stabilize temperature 3 Hold the Start Stop switch in its STOP position until engine comes to a comple
39. nel Model 9042 e GENERAC R V GENERATOR GEN Q RUN Recreational Vehicle Generator 7 BEFORE STARTING THE ENGINE IMPORTANT Instructions and information in this manual assume the generator has been properly installed connected serviced tested and adjusted by a qualified installation tech nician or installation contractor INSTALLATION Generator installation must have been properly completed so it complies with all applicable codes standards and regula tions and with the manufacturer s recommendations ENGINE LUBRICATION Have engine crankcase properly serviced with recommended oil before starting Refer to MAINTENANCE and SPECIFI CATIONS sections for oil servicing procedures and recommendations CAUTION Any attempt to crank or start the engine before you have properly serviced it with the recom mended oil may result in an engine failure FUEL SUPPLY The engine must have adequate supply of proper fuel to oper ate Before starting check that sufficient fuel is available COOLING AND VENTILATING AIR Air inlet and outlet openings in generator compartment must be open and unobstructed for continued proper operation Without sufficient cooling and ventilating air flow the engine generator quickly overheats which causes it to shutdown and it could damage the generator ENGINE EXHAUST GAS Before starting the generator engine you should be sure there is no way for exhaus
40. own let the muffler cool and install the plug WARNING Be sure to re install the plug from the muffler tightly Engine vibration could cause a loose plug to fall out Without the plug in place hot engine exhaust is directed out the opening This hot exhaust depending on the installation could be directed to areas not able to withstand the extreme heat such as wooden floor boards or other flamma ble material This could result in a fire CLEANING THE GENERATOR Keep your generator set as clean and dry as possible Dirt and moisture that are permitted to accumulate on electrical windings have an adverse affect on the insulation resistance of those windings Moisture that is allowed to remain in contact with windings will be retained in voids and cracks of the windings Dirt makes the problem worse since it tends to hold the moisture into con tact with the windings Salt as from sea air worsens the problem since it tends to absorb moisture from the air The combination of salt and moisture makes a good electrical con ductor CAUTION Do NOT use a forceful spray of water to clean the generator Water will enter the generator interior and cause problems and may also conta minate the generator fuel system Generac NP 50LPG Recreational Vehicle Generator BATTERY All lead acid storage batteries will discharge when not in use The generator battery should be inspected as follows ONCE WEEKLY Inspect battery posts an
41. porting the products to and from the place where the inspection and or warranty work is performed The purchaser shall be responsible for any damage or loss incurred in connection with the transportation of any engine or any part s thereof submitted for inspection and or warranty work EMISSION CONTROL SYSTEM WARRANTY Emission Control System Warranty ECS Warranty for 1995 and Later Model Year recreational vehicle generator A Applicability This warranty shall apply to 1995 and later model year recreational vehicle generator The ECS Warranty Period ECS Warranty Period shall begin on the date the new engine or equipment is delivered to its original end use purchaser and shall begin on the date the new engine or equipment is delivered to its original end use purchaser and shall continue for 24 consecutive months thereafter F B General Emissions Warranty Coverage Generac Corporation warrants to the original end use purchaser of the new engine equipment and to each subsequent purchaser that each of its recreational vehicle generator is 1 Designed built and equipped so as to conform with all applicable regulations adopted by the Air Resources Board pursuant to its authority and 2 Free from defects in materials and workmanship which at any time during the ECS Warranty Period will cause a warranted emissions related part to fail to be identical in all material respects to the part as described in the engine manu
42. s back into its original position when you release it START STOP SWITCH To crank and start the engine hold this switch at its START position Release the switch when the engine starts To stop an operating engine press and hold the switch in its STOP position until the engine shuts off The switch center position is the RUN position FUSE Protects the engine DC control circuit against electrical over load If the fuse element has melted open due to overloading the engine cannot be cranked If you must replace it use only an identical replacement fuse MAIN BREAKER Protects generators AC output circuit against overload and pro vides a method of turning OFF the generators 120 240 volts AC output to vehicle circuits The NP 50LPG has one 20 amp breaker and one 30 amp breaker NOTE If the Series NP 50LPG has been reconnected for dual voltage AC output 120 240 volts you can install line break ers having an amperage rating that is different than stated above The replacement line breakers consist of two sepa rate breakers with a connecting piece between the breaker handles so that both breakers will operate at the same time If the unit is reconnected for dual voltage IT IS NO LONGER RVIA LISTED OPTIONAL REMOTE START STOP PANEL remote mounted Start Stop Panel is available which allows you to start and stop the generator engine conveniently from inside the vehicle Figure 3 Optional Remote Pa
43. shall not be liable hereunder for failures of any warranted parts of a Generac Corporation engine caused by the use of such an unapproved add on or modified part EMISSION RELATED PARTS INCLUDE THE FOLLOWING 1 Fuel Metering System 2 Air cleaner assembly a Gasoline carburetor assembly if so equipped a Air filter element 1 FuelFilter if so equipped b Intake pipe 2 Carburetor gaskets 3 Ignition system including 3 Fuelpump a Spark plug b LP Natural gas carburetion assembly b ignition module 1 Fuel controller 4 Catalytic muffler if so equipped 2 Mixer and its gaskets if so equipped a Muffler gasket if so equipped 3 Carburetor and its gaskets if so equipped b Exhaust manifold if so equipped 4 Primary gas regulator if so equipped 5 Crankcase breather assembly and its components 5 LP liquid vaporized if so equipped a Breather connection tube Generac s Three Year Limited Warranty For Recreational Vehicle Generators Generac warrants to the original owner and subsequent purchasers from the date of purchase by the original owner that its generators will be free from defects in materials or workmanship for the period as set forth below During said warranty period Generac will at its option repair or reple any part which upon examination by Generac or a Generac Authorized Distributor and or Dealer thereof is found to be defective from norma use service This warranty is only effective upon Gen
44. t exhaust gases from entering rooms or areas occupied by people or animals EFFECTS OF MOISTURE AND DIRT Keep the generator set as clean and dry as possible Protect the unit against excessive dust dirt corrosive vapors road splash etc Permitting dirt and moisture to accumulate on generator windings will have an adverse effect on the insula tion resistance of those windings When moisture is allowed to remain in contact with windings some of the moisture will be retained in voids and cracks in the insulation This causes a reduced insulation resistance and will eventually cause problems Dirt will make the problem Worse since dirt tends to hold moisture in contact with wind ings Salt as from sea air will also worsen the problem since it tends to absorb moisture from the air Salt and moisture when combined form a good electrical conductor Recreational Vehicle Generator nnm FUEL REQUIREMENTS The NP series generator is equipped with a liquefied petro leum LP gas fuel system LP gas is usually supplied as a liquid in pressure tanks NP series generators require a vapor withdrawal type fuel system This type of gaseous fuel system uses the vapors forming above the liquid fuel in the storage tank Air temper ature around the storage tank must be high enough to sustain adequate fuel vaporization In colder climates you may need lo use an independent heat source to be sure the fuel suffi ciently vaporizes
45. t gases to enter the vehicle interior and endanger people or animals Close windows doors and other openings in the vehicle that if open might permit exhaust gases to enter the vehicle Generac NP 50LPG Recreational Vehicle Generator DANGER The generator engine gives off DEADLY carbon monoxide gas through its exhaust system This dangerous gas if breathed in sufficient con centrations can cause unconsciousness or even death DO NOT OPERATE THE GENERATOR IF THE EXHAUST SYSTEM IS LEAKING OR HAS BEEN DAMAGED SYMPTOMS OF CARBON MONOXIDE POISONING ARE a inability to think coherently b vomiting c twitching muscles d throbbing temples e dizziness f headaches g weakness and sleepiness IF YOU FEEL ANY OF THESE SYMPTOMS MOVE INTO FRESH AIR IMMEDIATELY IF SYMPTOMS PERSIST GET MED ICAL HELP STARTING THE GENERATOR IMPORTANT Read the vehicle manufacturer s instructions The owner operator should become familiar with the vehicle in which the generator is installed Differences exist between vehicles For example some vehicles may use a transfer switch to isolate dockside power from the generator while other vehicles may use an isolating receptacle Some vehicles may be equipped with a DC converter which allows the generator to power certain DC lighting and other DC loads To start the generator from either the generator control panel or from the optional Remote Panel proceed as follows 1 Turn OFF electrical
46. tall and tighten spark plug Remove the battery and store in a cool dry room a wooden board Never store the battery on concrete or earth floors Clean and wipe the entire generator RETURN THE UNIT TO SERVICE AFTER STORAGE To return the unit to service after storage proceed as follows Check tag on engine for oil viscosity and classification Verify that the correct recommended oil is used in engine If necessary drain and refill with proper oil Check battery Fill all cells to the proper level with distilled water DO NOT USE TAP WATER IN THE BATTERY Recharge battery to 10096 state of charge or if defective replace the battery Turn OFF all electrical loads add fuel if necessary then start the engine Let the engine warm up Apply electrical loads to at least 5096 of the unit s rated wattage capacity When engine is thoroughly warmed up shut it down THE GENERATOR IS NOW READY FOR SERVICE Recreational Vehicle Generator a 16 TROUBLE SHOOTING Generac NP 50LPG Recreational Vehicle Generator TROUBLESHOOTING POINTS CORRECTION PROBLEM Engine won t crank Engine cranks but won t start Engine starts hard runs rough Engine starts shuts down when Start Stop switch is released No AC output from generator CAUSE 1 2 Cc gt co ro 4 Go gt 15 fuse blown Loose corroded or defective
47. te stop APPLYING LOADS TO GENERATOR When applying electrical loads to the generator observe these guidelines Before applying electrical loads let the generator stabilize and warm up for a minute or two DO NOT overload the generator A CAUTION If the engine does not start after it has Generac NP 50LPG Recreational Vehicle Generator LET ENGINE STABILIZE The generator supplies correct rated voltage only at proper governed speed Some electrical appliances may be extremely sensitive to voltage Incorrect voltages can damage those appliances If electrical loads are applied at reduced operating speeds such loads imposed on the engine when sufficient power is not available may shorten engine life Never turn ON electrical loads until after the generator engine has started and stabi lized ON speed DO NOT OVERLOAD THE GENERATOR You can read the rated wattage amperage capacity of your gen erator on the generator data decal see Identification Record on Page 3 Applying electrical loads in excess of the unit s rated capac ity will cause the engine generator to automatically shutdown To avoid overloading add up the wattage of all connected elec trical lighting appliance tool and motor loads This total should not be greater than the generator s rated wattage capacity Most lighting appliance tool and motor loads indicate their required watts on their nameplate or data plate For light bulbs simply note
48. ted for the remainder of the ECS Warranty Period prior to the first scheduled replacement point for such emissions related part 4 Repair or Replacement of any warranted emissions related part under this ECS Warranty shall be performed at no charge to the owner at a Generac Corporation Authorized Service Outlet 5 The owner shall not be charged for diagnostic labor which leads to the determination that a part covered by the ECS War ranty is in fact defective provided that such diagnostic work is performed at a Generac Corporation Authorized Service Outlet 6 Generac Corporation shall be liable for damages to other original engine components or approved modifications proximately caused by a failure under warranty of any emission related part covered by the ECS Warranty 7 Throughout the ECS Warranty Period Generac shall maintain a supply of warranted emission related parts sufficient to meet the expected demand for such emission related parts 8 Any Generac Corporation authorized and approved emission related replacement part may be used in the performance of any ECS warranty maintenance or repairs and will be provided without charge to the owner Such use shall not reduce Gen erac Corporation ECS warranty obligations 9 Unapproved add on modified parts may not be used to modify or repair a Generac Corporation engine Such use voids this ECS Warranty and shall be sufficient grounds for disallowing an ECS Warranty claim Generac Corporation
49. that may be hazardous if performed incorrectly or carelessly Observe them carefully These safety warnings cannot eliminate the hazards that they indicate Strict compliance with the special instructions while performing the service plus common sense are major mea sures to prevent accidents The following definitions apply to DANGER WARNING CAU TION and NOTE blocks found throughout the manual DANGER After this heading you can read handling installing operating or servicing instructions that if not complied with will result in personal injury WARNING After this heading you can read handling installing operating or servicing instructions that if not complied with may result in personal injury CAUTION After this heading you can read instruc tions for handling installing operating or servicing the generator that if not strictly complied with may result in damage to equipment and or property NOTE After this heading you can read explanatory statements that require special emphasis These symbols indicate the following Points out important safety information and if not fol Al lowed could endanger personal safety and or property of yourself and others Potential explosion hazard Potential fire hazard Potential electrical shock hazard Generac NP 50LPG Recreational Vehicle Generator The operator owner is responsible for proper and safe use of the vehicle equipment on the vehicle and the sa
50. the wattage rating of the bulb If a load does not show its rated wattage multiply that load s rated VOLTS times AMPS to obtain WATTS WATTAGE REFERENCE GUIDE RUNNIN RUNNING WATT WATT Air Conditioner 12 000 1700 WOW CT uon iic 1200 Battery Charger 20 amp 900 uU l l u l PN 100 Bell Sander 9 isenana v not 1000 Microwave 700 Chain SaW oon iod 1200 oett 1100 Circular Saw 46 12 80010 1000 Burner on Furnace 300 Coffee Maker a att eit atis 1000 Oil Fired Space Heater 140 000 Btu 400 Compressor cu u uuu ua noctis 2000 Paint Sprayer Airless 1 3 600 Deep FIBBZG AR e a ve odds SUU Hae amu 50 to 200 Disc Sander 9 u uu s 1200 Refrigerators uncertain 600 Electric Range one element 1500 SION GOOKIN 200 Electrie k u a 1250 Submersible Pump 1 1 2 HP 2800 Furnace Fan 1 3 HP 1200 Submersible Pump 1 HP T 2
51. tlet as soon as a problem exists The warranty repairs should be completed in a reasonable amount of time not to exceed 30 days Warranty service can be arranged by contacting either a Generac Corporation Authorized Service Outlet or by contacting Gen erac Corporation at GENERAC CORPORATION P O BOX 8 WAUKESHA 53187 IMPORTANT NOTE This warranty statement explains your rights and obligations under the Emission Control System Warranty ECS Warranty which is provided to you by Generac Corporation pursuant to California law See also the Generac Corpora tion Limited Warranties for Generac Corporation which is enclosed herewith on a separate sheet and also is provided to you by Generac Corporation The ECS Warranty applies only to the emission control system of your new engine To the extent that there is any conflict in terms between the ECS Warranty and the Generac Corporation Warranty the ECS Warranty shall apply except in any circumstances in which the Generac Corporation Warranty may provide a longer warranty period Both the ECS War ranty and the Generac Corporation Warranty describe important rights and obligations with respect to your new engine Warranty service can only be performed by a Generac Corporation Authorized Service Outlet At the time of requesting war ranty service evidence must be presented of the date of the sale to the original purchaser The purchaser shall pay any charges for making service calls and or for trans
52. trators prime power or commercial applications such as construction or utility are warranted for 1 one year or 2 000 hours whichever comes first 4 This transferable warranty is in effect for all Recreational Vehicle Generators purchased after Jan 1 1998 THIS WARRANTY DOES NOT COVER e Costs of maintenance installation and start up Failures due to a normal wear and tear from GN engine or b accident misuse abuse negligence or improper installation Products which are modified or altered in a manner not authorized by Generac in writing JS Any incidental consequential or indirect damages caused by defects in materials or workmanship or any delay in repair or replacement c defective parts Failure due to misapplication Telephone telegraph teletype or other communication expense Living or travel expenses of persons performing service Any and all transportation travel expenses Rental equipment used while warranty repairs are being performed Overtime labor Starting batteries fuses light bulbs and engine fluids NORMAL WEAR As with all mechanical devices the GN Serles engines need periodic parts service and replacement to perform well This warranty will not cover repair when normal use has exhausted the life of a part or an engine There is no other express warranty Generac hereby disclaims any and all implied warranties including but not limited to those of merchantability and
53. ventilation openings Check engine carburetor Check engine ignition system Inspect entire electrical system Inspect the engine exhaust system OPERATION IN HIGH GRASS OR BRUSH WARNING Never operate the generator while the vehicle is parked in high grass weeds brush or leaves Such materials can ignite and burn from the heat of the exhaust system The generator exhaust becomes extremely hot during operation and remains hot for a long t Generac NP 50LPG Recreational Vehicle Generator ATTENTION REQUIRED AFTER SUBMERSION If the recreational vehicle generator has been submerged in water it must NOT be started or operated Following any sub mersion in water have an authorized Generac Service Facility thoroughly clean and dry the generator OPERATING PRECAUTIONS Never operate the generator set while the vehicle is parked over dry leaves dry grass or any other combustible substance The generator s exhaust system becomes extremely hot and can cause fire if it is too close to combustible materials The generator s exhaust system gives off DEADLY carbon monoxide gas this dangerous gas if breathed in sufficient concentrations can cause unconsciousness and even death never operate the generator set with the vehicle inside any garage or enclosed area Never operate the generator if it has a leaky exhaust system Close windows in the vicinity of the generator exhaust outlet and take any other steps to preven
Download Pdf Manuals
Related Search