Page 2 - The engine exhaust from this product; WA; GENER
Study these SAFETY RULES carefully before installing, operating or ser-vicing this equipment. Become familiar with the Owner’s Manual and withthe generator. The generator can operate safely, efficiently and reliably onlyif it is properly installed, operated and maintained. Many accidents arecaused b...
Page 3 - CATION; REFERENCE NUMBER IDENTIFICATION
3 R e c r e a t i o n a l V e h i c l e G e n e r a t o r 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...
Page 4 - TABLE
4 R e c r e a t i o n a l V e h i c l e G e n e r a t o r Generac NP-50LPG Recreational Vehicle Generator TABLE OF CONTENTS SAFETY RULES................................................................2 IDENTIFICATION RECORD ..............................................3 GENERAL FEATURES ..............
Page 5 - READ THIS MANUAL THOROUGHLY; OPERATION AND MAINTENANCE; SERVICE DEALER LOCATION
5 R e c r e a t i o n a l V e h i c l e G e n e r a t o r READ THIS MANUAL THOROUGHLY If you don't understand any portion of this manual, contact Gen-erac for a demonstration of actual starting, operating andservicing procedures. Throughout this publication and on tags and decals affixed tothe gener...
Page 6 - GENERATOR APPLICABILITY; Figure 1 — Connections for 120 Volts Only
6 R e c r e a t i o n a l V e h i c l e G e n e r a t o r Generac NP-50LPG Recreational Vehicle Generator GENERATOR APPLICABILITY These generators have been designed and manufactured forsupplying electrical power for recreational vehicles. You shouldnot modify the generator or use it for any applica...
Page 7 - GENERATOR CONTROL PANEL; Figure 2 — Generator Control Panel; FUEL PRIMER; IT IS NO LONGER; OPTIONAL REMOTE; Figure 3 — Optional Remote Panel (Model 9042)
7 R e c r e a t i o n a l V e h i c l e G e n e r a t o r Generac NP-50LPG Recreational Vehicle Generator GENERATOR CONTROL PANEL Mounted on the generator control panel (Figure 2) are the fol-lowing features: Figure 2 — Generator Control Panel FUEL PRIMER Before starting a cold engine (if it has not...
Page 8 - BEFORE STARTING THE ENGINE; INSTALLATION; STARTING THE GENERATOR
8 R e c r e a t i o n a l V e h i c l e G e n e r a t o r BEFORE STARTING THE ENGINE IMPORTANT: INSTRUCTIONS AND INFORMATION IN THISMANUAL ASSUME THE GENERATOR HAS BEEN PROP-ERLY INSTALLED, CONNECTED, SERVICED, TESTED ANDADJUSTED BY A QUALIFIED INSTALLATION TECHNICIANOR INSTALLATION CONTRACTOR. INST...
Page 9 - STOPPING THE GENERATOR; LET ENGINE STABILIZE; WATTAGE REFERENCE GUIDE
9 R e c r e a t i o n a l V e h i c l e G e n e r a t o r 3. Hold the engine Start/Stop Switch at START to crank engine. Release the switch when the engine starts. CAUTION: If the engine does not start after it hasbeen cranking for 15 seconds, release thestart/stop switch and try again. Holding the ...
Page 10 - ADDITIONAL INFORMATION; HIGH TEMPERATURE SHUTDOWN; Figure 4 — Switches for Engine; FIELD BOOST; Figure 5 — Field Boost Circuit; OVERVOLTAGE PROTECTION; Figure 6 — Solid State Voltage Regulator
10 R e c r e a t i o n a l V e h i c l e G e n e r a t o r Induction type motors (such as those that run the vehicle’sfurnace 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 allowfo...
Page 11 - 5-HOUR BREAK IN PERIOD
11 R e c r e a t i o n a l V e h i c l e G e n e r a t o r The voltage regulator also incorporates a “voltage surge pro-tection circuit.” This circuit prevents troublesome surges in thegenerator AC output voltage. Voltage surge is a common causeof damage to electronic equipment. 25-HOUR BREAK IN PER...
Page 12 - FUEL REQUIREMENTS; ENGINE
12 R e c r e a t i o n a l V e h i c l e G e n e r a t o r FUEL REQUIREMENTS The “NP” series generator is equipped with a liquefied petro-leum (LP) gas fuel system. LP gas is usually supplied as aliquid in pressure tanks. “NP” series generators require a “vapor withdrawal” type fuelsystem. This type...
Page 13 - CHECKING ENGINE OIL LEVEL; Figure 7 —Oil Dipstick and Oil Fill Cap; CHANGE ENGINE OIL; Figure 8 — Location of Oil Drain Cap; CHANGE OIL FILTER; Figure 9 — Engine Oil Filter
13 R e c r e a t i o n a l V e h i c l e G e n e r a t o r This section includes information about simple maintenancewhich includes the following tasks. • Checking engine oil level• Changing engine oil• Changing oil filter• Clean or change the air cleaner• Cleaning the air intake screen• Cleaning sp...
Page 14 - ENGINE AIR CLEANER; Figure 10 — Engine Air Cleaner; CLEAN OR REPLACE AIR FILTER; CLEAN AIR INTAKE SCREEN; Figure 11 — Cleaning Air Intake Screen; ENGINE SPARK PLUG; Figure 12 — Setting Spark Plug Gap
14 R e c r e a t i o n a l V e h i c l e G e n e r a t o r ENGINE AIR CLEANER Clean and re-oil the foam pre-cleaner every three months orevery 25 operating hours, whichever comes first. Servicemore frequently if operating under extremely dusty or dirty con-ditions (Figure 10): • Remove both screws t...
Page 15 - SPARK ARRESTOR MUFFLER; ONCE WEEKLY
15 R e c r e a t i o n a l V e h i c l e G e n e r a t o r SPARK ARRESTOR MUFFLER If the generator is not equipped with a spark arrestor exhaustmuffler and is to be used on any forest covered, brush cov-ered or grass covered unimproved land, you may have toinstall a spark arrestor. The spark arresto...
Page 17 - TROUBLESHOOTING POINTS; PROBLEM
17 TROUBLESHOOTING POINTS PROBLEM CAUSE CORRECTION Engine won’t crank. 1. 15 amp fuse blown. 1. Replace fuse. 2. Loose, corroded or defective 2. Tighten, clean or replace battery cables as necessary. 3. Battery is discharged or defective. 3. Recharge or replace battery. 4. Defective starter contacto...
Page 18 - ELECTRICAL DATA
ELECTRICAL DATA Drawing No. 94210 18 R e c r e a t i o n a l V e h i c l e G e n e r a t o r Generac NP-50LPG Recreational Vehicle Generator GENER A C ® CORPOR A TION
Page 20 - EXPLODED VIEW — BASE AND PULLEYS
20 R e c r e a t i o n a l V e h i c l e G e n e r a t o r Generac NP-50LPG Recreational Vehicle Generator EXPLODED VIEW — BASE AND PULLEYS Drawing No. 95865 GENER A C ® CORPOR A TION
Page 21 - REPAIR PARTS — BASE AND PULLEYS
ITEM DESCRIPTION PART NO. QTY. ITEM DESCRIPTION PART NO. QTY. 21 R e c r e a t i o n a l V e h i c l e G e n e r a t o r 1 BASE, MOUNTING 92603 1 2 GROUND CABLE 90141 1 3 MOUNT, (RUBBER) 46911 4 4 CAPSCREW, .-3/8"-16 x 1/2" 25017 8 5 LOCKWASHER-M10 46526 10 6 LOCKWASHER-M8 22129 4 7 SKID, RU...
Page 22 - EXPLODED VIEW — ALTERNATOR AND PANEL
22 R e c r e a t i o n a l V e h i c l e G e n e r a t o r Generac NP-50LPG Recreational Vehicle Generator EXPLODED VIEW — ALTERNATOR AND PANEL Drawing No. 94106 GENER A C ® CORPOR A TION
Page 23 - REPAIR PARTS — ALTERNATOR AND PANEL
ITEM DESCRIPTION PART NO. QTY. ITEM DESCRIPTION PART NO. QTY. 23 R e c r e a t i o n a l V e h i c l e G e n e r a t o r 1 Lower Bearing Carrier 75995 1 2 50 Rotor Assembly 92605G 1 3 50 Stator Assembly 92604G 1 4 Ball Bearing 73159 1 5 Ball Bearing 31971 1 6 Upper Bearing Carrier 72379 1 7 Stator S...
Page 24 - EXPLODED VIEW — ENGINE ENCLOSURE
24 R e c r e a t i o n a l V e h i c l e G e n e r a t o r Generac NP-50LPG Recreational Vehicle Generator EXPLODED VIEW — ENGINE ENCLOSURE Drawing No. 94108 GENER A C ® CORPOR A TION
Page 25 - REPAIR PARTS — ENGINE ENCLOSURE
ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION 25 R e c r e a t i o n a l V e h i c l e G e n e r a t o r 1 90953 1 SCROLL, FLYWHEEL 2 45756 8 SCREW, TAPTITEM6-1.0 x 10 LG 3 90388 1 SCREW, TAPTITEM6-1.0 x 12 LG 4 91222-A 1 FLYWHEEL (20 DEG.) 5 67198-N 1 WASHER, BELLVILLE M20 6 67890 1...
Page 26 - EXPLODED VIEW — GN-410 ENGINE
26 R e c r e a t i o n a l V e h i c l e G e n e r a t o r Generac NP-50LPG Recreational Vehicle Generator EXPLODED VIEW — GN-410 ENGINE Drawing No. B2195 GENER A C ® CORPOR A TION
Page 27 - REPAIR PARTS — GN-410 ENGINE
27 R e c r e a t i o n a l V e h i c l e G e n e r a t o r Generac NP-50LPG Recreational Vehicle Generator ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION 1 71977 1 PISTON RING SET 2 71979 2 CONNECTING ROD BOLT 3 72637 1 CONNECTING ROD WITH CAP AND BOLT 4 71980 1 PISTON PIN 5 71983 2 P...
Page 28 - EXPLODED VIEW — ENGINE ACCESSORIES
28 R e c r e a t i o n a l V e h i c l e G e n e r a t o r Generac NP-50LPG Recreational Vehicle Generator EXPLODED VIEW — ENGINE ACCESSORIES Drawing No. 95866 GENER A C ® CORPOR A TION
Page 29 - REPAIR PARTS — ENGINE ACCESSORIES
ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION 29 R e c r e a t i o n a l V e h i c l e G e n e r a t o r 1 90896 1 MANIFOLD, INTAKE 2 91039 1 GASKET, MANIFOLD/HEAD 3 68527 2 BOLT, HEX HD. CAPSCR. &LOCK WASHER-M6-1.0 x 20 4 72347 1 SPARK PLUG, CHAMPION#RC12YC 5 89228 1 GASKET, CAR...
Page 30 - CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT; YOUR WARRANTY RIGHTS AND OBLIGATIONS
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 War-ranty on your new recreational vehicle generator engine. In California, new recreatio...
Page 31 - EMISSION CONTROL SYSTEM WARRANTY; EMISSION RELATED PARTS INCLUDE THE FOLLOWING:
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...
Page 32 - THREE YEAR WARRANTY SCHEDULE; Generac Corporation
GENER A C ® CORPOR A TION 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 theperiod set forth below from the date of original purchase. During said wa...
