Manual No. A5596 ® GENERAC Air-cooled Recreational Vehicle Generator OWNER’S MANUAL General Information Information ® GENERAC CORPOR ATION Model No. 00919-0 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 1 (6/1/98) Printed in U.S.A.
® G C E O N R P E O R R A A T C IO N Generac NP-50LPG Recreational Vehicle Generator THE MANUFACTURER SUGGESTS THAT THESE “RULES” FOR SAFE OPERATION BE COPIED AND POSTED IN POTENTIAL HAZARD AREAS OF THE RECREATIONAL VEHICLE. SAFETY SHOULD BE STRESSED TO ALL OPERATORS AND POTENTIAL OPERATORS OF THIS EQUIPMENT. • Inspect the generator periodically. Repair or replace all damaged or defective parts immediately.
® C E O N R P E O R R A A T C IO N Generac NP-50LPG Recreational Vehicle Generator IDENTIFICATION G 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__________________ 14 1 13 12 15 SIDE VIEW 2 3 11 16 10 4 9 17 5 8 7 6 REFERENCE NUMBER IDENTIFICATION 1. 2. 3. 4. 5. 6. 7. 8. 9.
® G C E O N R P E O R R A A T C IO N Generac NP-50LPG Recreational Vehicle Generator TABLE OF CONTENTS SAFETY RULES................................................................2 MAINTENANCE ........................................................13-16 IDENTIFICATION RECORD..............................................3 Checking Engine Oil Level ........................................................13 Change Engine Oil ....................................................................
® R E AD T H IS MA N UAL G C E O N R P E O R R A A T C IO N Generac NP-50LPG Recreational Vehicle Generator READ THIS MANUAL THOROUGHLY The operator (owner) is responsible for proper and safe use of the vehicle, equipment on the vehicle, and the safety of all vehicle occupants. We strongly recommend that the operator read this Owner’s Manual and thoroughly understand all instructions before using this equipment.
® GENERAL INFORMATION G C E O N R P E O R R A A T C IO N Generac NP-50LPG Recreational Vehicle Generator GENERATOR APPLICABILITY Owners/Operators must make sure to do nothing that might render the installation unsafe or in noncompliance with applicable codes, standards and instructions. They should be sure the unit has been installed to allow adequate ventilation for cooling and exhaust air. These generators have been designed and manufactured for supplying electrical power for recreational vehicles.
® G C E O N R P E O R R A A T C IO N Generac NP-50LPG Recreational Vehicle Generator GENERATOR CONTROL PANEL MAIN BREAKER Mounted on the generator control panel (Figure 2) are the following features: Protects generators AC output circuit against overload and provides 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.
® G C E O N R P E O R R A A T C IO N 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 concentrations, can cause unconsciousness or even death. DO NOT OPERATE THE GENERATOR IF THE EXHAUST SYSTEM IS LEAKING OR HAS BEEN DAMAGED.
® G C E O N R P E O R R A A T C IO N Generac NP-50LPG Recreational Vehicle Generator 3. Hold the engine Start/Stop Switch at START to crank engine. Release the switch when the engine starts. 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.
® G C E O N R P E O R R A A T C IO N Generac NP-50LPG Recreational Vehicle Generator Induction type motors (such as those that run the vehicle’s furnace fan, refrigerator, air conditioner, etc.) need about 21/2 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.
® G C E O N R P E O R R A A T C IO N Generac NP-50LPG Recreational Vehicle Generator The voltage regulator also incorporates a “voltage surge protection circuit.” This circuit prevents troublesome surges in the generator AC output voltage. Voltage surge is a common cause of damage to electronic equipment. ATTENTION REQUIRED AFTER SUBMERSION If the recreational vehicle generator has been submerged in water, it must NOT be started or operated.
® G C E O N R P E O R R A A T C IO N Generac NP-50LPG Recreational Vehicle Generator FUEL REQUIREMENTS SPECIFICATIONS The “NP” series generator is equipped with a liquefied petroleum (LP) gas fuel system. LP gas is usually supplied as a liquid in pressure tanks. ENGINE Type of Engine ....................................................GN-410, single-cylinder Cooling Method ........................................................................Air-cooled Rated Horsepower .............................
® G C E O N R P E O R R A A T C IO N Generac NP-50LPG Recreational Vehicle Generator This section includes information about simple maintenance which includes the following tasks. • • • • • • • With engine still warm, remove oil drain cap from oil drain hose (Figure 8). Drain oil completely into a suitable container.
® G C E O N R P E O R R A A T C IO N Generac NP-50LPG Recreational Vehicle Generator ENGINE AIR CLEANER 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 and re-oil the foam pre-cleaner every three months or every 25 operating hours, whichever comes first.
® G C E O N R P E O R R A A T C IO N Generac NP-50LPG Recreational Vehicle Generator SPARK ARRESTOR MUFFLER BATTERY If the generator is not equipped with a spark arrestor exhaust muffler and is to be used on any forest covered, brush covered 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. All lead-acid storage batteries will discharge when not in use.
® G C E O N R P E O R R A A T C IO N Generac NP-50LPG Recreational Vehicle Generator MAJOR SERVICE MANUAL • Remove spark plug and pour about two or three tablespoons of clean, fresh engine oil into spark plug threaded opening. Crank engine several times to distribute oil, then install and tighten spark plug. • Remove the battery and store in a cool, dry room on a wooden board. Never store the battery on concrete or earth floors. • Clean and wipe the entire generator.
® G C E O N R P E O R R A A T C IO N Generac NP-50LPG Recreational Vehicle Generator TROUBLESHOOTING POINTS PROBLEM CAUSE CORRECTION Engine won’t crank. 1. 15 amp fuse blown. 2. Loose, corroded or defective battery cables 3. Battery is discharged or defective. 4. Defective starter contactor. 5. Defective starter motor. 6. Defective Controller circuit board 1. Replace fuse. 2. Tighten, clean or replace as necessary. 3. Recharge or replace battery. 4. Replace if defective. 5 Replace if defective. 6.
ELECTRICAL DATA Drawing No.
ELECTRICAL DATA Drawing No.
EXPLODED VIEW — BASE AND PULLEYS ® G C E O N R P E O R R A A T C IO N Generac NP-50LPG Recreational Vehicle Generator R e c r e a t i o n a l Ve h i c l e G e n e ra t o r 20 Drawing No.
REPAIR PARTS — BASE AND PULLEYS Drawing No. 95865 ® G C E O N R P E O R R A A T C IO N Generac NP-50LPG Recreational Vehicle Generator ITEM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 30 31 32 33 34 35 DESCRIPTION PART NO. QTY. ITEM BASE, MOUNTING GROUND CABLE MOUNT, (RUBBER) CAPSCREW, .-3/8"-16 x 1/2" LOCKWASHER-M10 LOCKWASHER-M8 SKID, RUBBER MOUNT SAFETY BOLT 5/16"-18 x 3 1/2" NUT, HEX-5/16-18 NUT, FLANGED LOCK-M8-1.25 CAPSCR. -M8-1.
EXPLODED VIEW — ALTERNATOR AND PANEL ® G C E O N R P E O R R A A T C IO N Generac NP-50LPG Recreational Vehicle Generator R e c r e a t i o n a l Ve h i c l e G e n e ra t o r 22 Drawing No.
REPAIR PARTS — ALTERNATOR AND PANEL Drawing No. 94106 ® G C E O N R P E O R R A A T C IO N Generac NP-50LPG Recreational Vehicle Generator ITEM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 DESCRIPTION PART NO. QTY. Lower Bearing Carrier 50 Rotor Assembly 50 Stator Assembly Ball Bearing Ball Bearing Upper Bearing Carrier Stator Stud M8-1.25 Flange Lock Nut Brush Holder M5-0.
EXPLODED VIEW — ENGINE ENCLOSURE ® G C E O N R P E O R R A A T C IO N Generac NP-50LPG Recreational Vehicle Generator R e c r e a t i o n a l Ve h i c l e G e n e ra t o r 24 Drawing No.
REPAIR PARTS — ENGINE ENCLOSURE Drawing No. 94108 ® G C E O N R P E O R R A A T C IO N Generac NP-50LPG Recreational Vehicle Generator ITEM PART NO. QTY.
EXPLODED VIEW — GN-410 ENGINE ® G C E O N R P E O R R A A T C IO N Generac NP-50LPG Recreational Vehicle Generator R e c r e a t i o n a l Ve h i c l e G e n e ra t o r 26 Drawing No.
REPAIR PARTS — GN-410 ENGINE Drawing No. B2195 ® G C E O N R P E O R R A A T C IO N Generac NP-50LPG Recreational Vehicle Generator ITEM PART NO. QTY.
EXPLODED VIEW — ENGINE ACCESSORIES ® G C E O N R P E O R R A A T C IO N Generac NP-50LPG Recreational Vehicle Generator R e c r e a t i o n a l Ve h i c l e G e n e ra t o r 28 Drawing No.
REPAIR PARTS — ENGINE ACCESSORIES Drawing No. 95866 ® G C E O N R P E O R R A A T C IO N Generac NP-50LPG Recreational Vehicle Generator ITEM PART NO. QTY. DESCRIPTION 1 2 3 90896 91039 68527 1 1 2 4 72347 1 5 6 7 8 9 10 11 89228 A2775A 90970 73108C 91204 59635 66476 1 1 1 1 1 2 2 12 13 14 15 16 17 18 92695 73111 81646 73104-B 78609 20139 91554 2 1 1 1 2 1 1 91554B 1 ITEM MANIFOLD, INTAKE GASKET, MANIFOLD/HEAD BOLT, HEX HD. CAPSCR. & LOCK WASHER-M6-1.
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 Warranty 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.
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.
® G C E O N R P E O R R A A T C IO N Generac NP-50LPG Recreational Vehicle Generator Generac’s Three-Year Limited Warranty For Recreational Vehicle NP Generators GENERAC warrants to the original purchaser that its generators will be free from defects in materials or workmanship for the period set forth below from the date of original purchase.
