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.
Model No. 00919-0 Series NP-50LPG
GENERAC
®
CORPORATION
OWNER’S MANUAL
Manual No. A5596
General
General
Inf
Inf
ormation
ormation
Revision 1 (6/1/98) Printed in U.S.A.
GENERAC
®
Air-cooled Recreational
Vehicle Generator
Study these SAFETY RULES carefully before installing, operating or servicing this equipment. Become familiar with the Owner’ s Man ual and with
the generator. The generator can operate saf ely , efficiently and reliab ly 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 ev ery possible circumstance that might
involve a hazard. The w arnings in this Manual and 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 f or y ou 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.
• For fire safety, the auxiliary generator must be installed and maintained
properly . Installation must always comply with applicab le 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.
The Recreational Vehicle Generator produces extremely high and
dangerous electrical voltages and can cause dangerous, and possibly fatal, electrical shock. A void contact with bare wires, terminals, etc.
while the unit is running. If you must work around an operating generator, 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 baref oot, or while hands or feet are wet. Dangerous 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 NO T reconnect the bonding conductor 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.
In 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. A V OID 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 wa y that might
affect safety or compliance with applicable codes and standards.
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 ev en 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 completely 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 immediately . Nev er leave oily or fuel soaked r ags in the generator compartment
or on the generator itself. K eep the area around the generator clean and
free of debris.
• Adequate ventilation is required to expel to xic fumes and fuel vapors from
the generator compartment. Do not alter the installation of this equipment in any manner that might obstruct air and ventilation openings. Such
openings must be kept clear and unobstructed.
Some generators may use LP gas (propane) as a fuel. LP gas is highly
EXPLOSIVE. The 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.
2
Recreational Vehicle Generator
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.
The engine exhaust from this product
contains chemicals known to the State
of California to cause cancer, birth
defects, or other reproductive harm.
WWAARRNNIINNGG::
GENERAC
®
CORPORATION
3
Recreational Vehicle Generator
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__________________
REFERENCE NUMBER IDENTIFICATION
1. Generator Air Intake Screen
2. Data Decal
3. Oil Dipstick
4. Oil Filler Cap
5. Oil Drain Plug
6. Oil Filter
7. Fuel Regulator
8. Fuel Solenoid
9. Fuel Inlet
10. Fuel Primer Switch
11. Circuit Breakers
12. Fuse
13. Engine Start/Stop Switch
14. Air Cleaner
15. Optional Remote Panel Receptacle
16. Generator AC Output Leads
17. Starter Contactor
1
2
3
4
5
6
7
8
9
10
11
13
14
15
16
GENERAC
®
CORPORATION
12
SIDE VIEW
17
4
Recreational Vehicle Generator
Generac NP-50LPG Recreational Vehicle Generator
TABLE
OF
CONTENTS
SAFETY RULES................................................................2
IDENTIFICATION RECORD..............................................3
GENERAL FEATURES ....................................................3
READ THIS MANUAL THOROUGHLY ............................5
Operation and Maintenance........................................................5
How to Obtain Service ................................................................5
GENERATOR FAMILIARIZATION ....................................6
Generator Applicability................................................................6
Installation ..................................................................................6
Safety..........................................................................................6
Generator AC Connection System..............................................6
OPERATION ................................................................7-11
Generator Control Panel ............................................................7
Optional Remote Start/Stop Panel..............................................7
Before Starting the Engine..........................................................8
Starting the Generator ............................................................8-9
Stopping the Generator ..............................................................9
Applying Loads to Generator ................................................9-10
Additional Information..........................................................10-11
SPECIFICATIONS ..........................................................12
Fuel Requirements....................................................................12
Engine Oil Requirements..........................................................12
Engine Specifications................................................................12
Generator Specifications ..........................................................12
MAINTENANCE ........................................................13-16
Checking Engine Oil Level ........................................................13
Change Engine Oil....................................................................13
Change Oil Filter ......................................................................13
Engine Air Cleaner....................................................................14
Clean Air Intake Screen............................................................14
Engine Spark Plug ....................................................................14
Spark Arrestor Muffler ..............................................................15
Cleaning the Generator ............................................................15
Battery ......................................................................................15
Major Service Manual ..............................................................16
Drive Belts ................................................................................16
Exercising the Generator ..........................................................16
Out of Service Protection..........................................................16
Return the Unit to Service after Storage ..................................16
TROUBLESHOOTING ....................................................17
REPAIR PARTS..........................................................20-29
ELECTRICAL DATA ..................................................18-19
EMISSIONS WARRANTY ..........................................30-31
BASIC 3-YEAR WARRANTY ...........................back cover
GENERAC
®
CORPORATION
5
Recreational Vehicle Generator
READ THIS MANUAL THOROUGHLY
If you don't understand any portion of this manual, contact Generac for a demonstration of actual starting, operating and
servicing procedures.
Throughout this publication and on tags and decals affixed to
the generator, D ANGER and CA UTION blocks are used to alert
you to special instructions about a particular operation 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 measures to prevent accidents.
The following definitions apply to D ANGER, WARNING, CA UTION 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 instructions 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:
The operator (owner) is responsible for proper and safe use
of the vehicle, equipment on the v ehicle, 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. We also strongly recommend instructing other occupants in the vehicle 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 performed promptly; and to have the equipment checked by an
Authorized Dealer periodically. Normal 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 . Individual 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 minim um. See your authorized
Dealer/Distributor for service aids and accessories.
HOW TO OBTAIN SERVICE
When your recreational vehicle generator set 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 f actory
about parts and ser vice, always 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
Manual, as well as listings for repair parts.
Generac NP-50LPG Recreational Vehicle Generator
RR
EE AA
DD
TT
HHII
SS
MM
AANNUUAA
LL
Points out important safety information and, if not followed, could endanger personal safety and/or property
of yourself and others.
Potential explosion hazard.
Potential fire hazard.
Potential electrical shock hazard.
GENERAC
®
CORPORATION
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
6
Recreational Vehicle Generator
Generac NP-50LPG Recreational Vehicle Generator
GENERATOR APPLICABILITY
These generators have been designed and manuf actured f or
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 pertaining to its application, write or call the factory. Do not use the
unit until you have been advised by a competent authority.
DANGER: FOR FIRE SAFETY, THE GENERATOR
MUST HAVE BEEN PROPERLY INSTALLED IN
COMPLIANCE WITH (1) ANSI 119.2-1975/NFPA
501C-1974 “STANDARD FOR RECREATIONAL
VEHICLES, PART III, “INSTALLATION OF ELECTRICAL SYSTEMS.” THE GENERATOR ALSO MUST
HAVE BEEN INSTALLED IN STRICT COMPLIANCE
WITH THE MANUFACTURER’S DETAILED INSTALLATION INSTRUCTIONS. AFTER INSTALLATION,
DO NOTHING THAT MIGHT RENDER THE UNIT IN
NON-COMPLIANCE WITH SUCH CODES, STANDARDS AND INSTRUCTIONS.
You can use this generator to supply electrical power for operating 120/240 volts, single phase, 60 Hertz, AC electrical
loads. These 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 excessively 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, multiply 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 assumption that a competent, qualified technician installed the
generator. We also assume the installer complied with all
applicable codes, standards and regulations pertaining to
installation.
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 f or cooling and exhaust air.
SAFETY
Before attempting to use the generator set, carefully 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. W e suggest that copying and posting GENERAL SAFETY RULES in potential hazard
areas of the vehicle. Stress saf ety to all operators and potential 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 connection system. Note, however, that neutral is grounded.
The generator may hav e been installed so that the unit powers
120 volt AC loads (Figure 1); or y ou can wire them to connect
both 120 and/or 240 volt 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
GENERAL
INFORMA-
TION
GENERAC
®
CORPORATION
7
Recreational Vehicle Generator
Generac NP-50LPG Recreational Vehicle Generator
GENERATOR CONTROL PANEL
Mounted on the generator control panel (Figure 2) are the following features:
Figure 2 — Generator Control Panel
FUEL PRIMER
Before starting a cold engine (if it has not been started in more
than two weeks), you must press this s witch to bring fuel from
the tank to the fuel regulator. This roc ker type s witch springs
back into its original position when you release it.
START/STOP SWITCH
To crank and star t 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 overload. 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 ov erload 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.
NOTE: If the Series NP-50LPG has been reconnected for dual
voltage AC output (120/240 volts), you can install line breakers having an amperage rating that is different than stated
above. The replacement line breakers consist of two separate 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
A 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 Panel (Model 9042)
GENERAC
®
CORPORATION
8
Recreational Vehicle Generator
BEFORE STARTING THE ENGINE
IMPORTANT: INSTRUCTIONS AND INFORMATION IN THIS
MANUAL ASSUME THE GENERATOR HAS BEEN PROPERLY INST ALLED , CONNECTED , SERVICED , TESTED AND
ADJUSTED BY A QUALIFIED INSTALLA TION TECHNICIAN
OR INSTALLATION CONTRACTOR.
INSTALLATION
Generator installation must have been properly completed so
it complies with all applicable codes, standards and regulations and with the manufacturer's recommendations.
ENGINE LUBRICATION
Have engine crankcase properly serviced with recommended
oil before starting. Refer to MAINTENANCE and SPECIFICATIONS sections for oil servicing procedures and
recommendations.
CAUTION: Any attempt to crank or start the engine
before you have properly serviced it with the recommended oil may result in an engine failure.
FUEL SUPPLY
The engine must have adequate supply of proper fuel to operate. 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 enginegenerator quickly ov erheats 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 exhaust 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.
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. 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 MEDICAL 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 e xist between
vehicles. For example, some vehicles may use a transfer
switch to isolate dockside pow er from the generator, while other
vehicles may use an isolating receptacle . Some vehicles ma y
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 loads, using whatev er means provided
in your vehicle (such as a main line circuit breaker or tr ansfer switch).
NOTE: If star ting 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 pro vided in the vehicle (such as a main circuit 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.
Generac NP-50LPG Recreational Vehicle Generator
GENERAC
®
CORPORATION
9
Recreational Vehicle Generator
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 has
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 fe w min utes to stabiliz e
and warm up.
5.Tur n ON electrical loads, using whatever means provided
(such as a main circuit breaker or transfer switch).
STOPPING THE GENERATOR
1.Tur n OFF all electrical loads, using whatever means provided (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 complete 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.
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 stabilized ON-speed.
DO NOT OVERLOAD THE GENERATOR
You can read the rated wattage/amperage capacity of your generator on the generator data decal (see “Identification Record”
on Page 3).
Applying electrical loads in excess of the unit’s rated capacity will cause the engine-generator to automatically shutdown.
T o av oid overloading, add up the wattage of all connected electrical lighting, appliance, tool and motor loads. This total should
not be greater than the generator’ s r ated w attage capacity.
Most lighting, appliance, tool, and motor loads indicate their
required watts on their nameplate or data plate. For light
bulbs, simply note 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.
Generac NP-50LPG Recreational Vehicle Generator
RUNNING
WATTS
*Air Conditioner (12,000 Btu)..........................................1700
Battery Charger (20 amp) ................................................500
Belt Sander (3”) ..............................................................1000
Chain Saw ......................................................................1200
Circular Saw (6-12”) ............................................800 to 1000
Coffee Maker ..................................................................1000
*Compressor (1HP) ........................................................2000
*Deep Freeze....................................................................500
Disc Sander (9”)..............................................................1200
Electric Range (one element) ........................................1500
Electric Skillet..................................................................1250
*Furnace Fan (1/3 HP)....................................................1200
Hair Dryer........................................................................1200
Hand Drill (1”)..................................................................1100
Hedge Trimmer ................................................................450
Impact Wrench..................................................................500
RUNNING
WATTS
Lawn Mower....................................................................1200
Light Bulb..........................................................................100
Microwave Oven................................................................700
*Milk Cooler ....................................................................1100
Oil Burner on Furnace ......................................................300
Oil Fired Space Heater (140,000 Btu) ..............................400
*Paint Sprayer, Airless (1/3 HP)........................................600
Radio........................................................................50 to 200
*Refrigerator......................................................................600
Slow Cooker......................................................................200
*Submersible Pump (1-1/2 HP) ......................................2800
*Submersible Pump (1 HP) ............................................2000
*Table Saw (10”) ................................................1750 to 2000
Television ..........................................................1750 to 2000
* Allow 2-1/2 times the listed watts for starting these devices.
WATTAGE REFERENCE GUIDE
GENERAC
®
CORPORATION
10
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 fe w 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 pressure switch (Figure 4). Engine oil pressure holds the switch
open during cranking and operation. Should oil pressure drop
below a pre-set lev el, the switch contacts close and the engine
automatically shuts down.
HIGH TEMPERATURE SHUTDOWN
A temperature switch (Figure 4) with normally-open (N.O.) contacts is mounted near the oil filter. If engine temperature w ere
to exceed about 284°F (140°C), the switch contacts close
and the engine shuts down.
Figure 4 — Switches for Engine
Safety Shutdown
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 sufficiently 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 generator’s A C output voltage. This regulator supplies an e xcitation
current to the rotor. By regulating the rotor’s excitation current, 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 regulated at 120 volts (voltage-to-frequency ratio is 2-to-1).
Figure 6 — Solid State Voltage Regulator
Generac NP-50LPG Recreational Vehicle Generator
HIGH TEMPERATURE
SWITCH
LOW OIL PRESSURE SWITCH
GENERAC
®
CORPORATION
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Recreational Vehicle Generator
The voltage regulator also incorporates a “voltage surge protection circuit. ” This circuit prev ents troublesome surges in the
generator AC output v oltage. V oltage 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 performance. 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 until the piston rings have properly seated.
• After operating the unit for 25 hours, complete the tasks recommended under “25-Hour Check Up.”
25-HOUR CHECK UP
After the 25-hour break-in period, contact an authorized service facility for the following maintenance. The vehicle o wner
is responsible for any charges:
• Change engine crankcase oil and oil filter.
Check oil level.
• Inspect cooling and 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 TIME AFTER IT
HAS SHUT DOWN.
ATTENTION REQUIRED AFTER SUB-
MERSION
If the recreational vehicle generator has been submerged in
water, it must NOT be started or operated. Following any submersion 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 prevent
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 insulation 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 windings. 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.
Generac NP-50LPG Recreational Vehicle Generator
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Recreational Vehicle Generator
FUEL REQUIREMENTS
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.
“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 temperature around the storage tank must be high enough to sustain
adequate fuel vaporization. In colder climates, you ma y need
to use an independent heat source to be sure the fuel sufficiently vaporizes 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 temperatures as low as -20°F (-29°C), but butane returns to its
liquid state when the temperature drops below about 32°F
(0°C). 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 appro ximate amount of fuel the unit consumes at 100% rated load. Actual fuel consumption may
vary depending on BTU content of fuel, applied load, ambient conditions, engine condition, etc.
Propane ..............................................47 cubic ft. per hour
ENGINE OIL REQUIREMENTS
Use a high quality detergent oil classified “For Service SF” and
with an oil viscosity rating of SAE 10W-30 oil. Do not pour in
any additives to the recommended oil. Engine crankcase
capacity is 1.5 U.S. quarts (1.4 liters). See MAINTENANCE
section for oil level check and filling procedures.
SPECIFICATIONS
ENGINE
Type of Engine ....................................................GN-410, single-cylinder
Cooling Method ........................................................................Air-cooled
Rated Horsepower..........................................................15 at 4200 RPM
Displacement ..................................................................................407cc
Cylinder Block ........................................Aluminum with cast iron sleeve
Type of Governor................................................Mechanical, fixed speed
Air Cleaner ....................................Paper element with foam pre-cleaner
Starter..........................................................................12 volt DC electric
Ignition System........................................................................Solid State
Recommended Spark Plugs
Champion................................................................................RC12YC
AC ................................................................................................R45S
Autolite ..............................................................................................65
Spark Plug Gap........................................................0.030 inch (0.76mm)
GENERATOR
Rotor RPM ........................................................................................3600
Rotor Poles..............................................................................................2
Engine RPM......................................................................................2571
Rated Maximum Continuous
AC Output ................................................................4500 watts (4.5 kW)
Voltage ......................................................................................120 volts*
Rated Maximum Continuous AC Current............................37.5 amperes
Phase ..............................................................................................single
Frequency....................................................................................60 Hertz
Weight ...................................................................... 197 pounds (93 kg)
Length ...................................................................... 25 inches (635mm)
Width...................................................................... 18.5 inches (470mm)
Height ....................................................................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.
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Recreational Vehicle Generator
This section includes information about simple maintenance
which 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 spark plug
CHECKING ENGINE OIL LEVEL
Check engine crankcase oil lev el at least ev ery 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 NO T FILL ABO VE THE
“FULL” MARK.
• Install and tighten oil dipstick before operating the engine.
NOTE: See “Engine Oil Requirements” on Page 12 for recommended oils.
Figure 7 —Oil Dipstick and Oil Fill Cap
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 operating consistently under heavy load or at high ambient
temperatures. To change oil, proceed as follows:
• Run engine for at least 5 minutes, then shut down.
• With engine still warm, remove oil drain cap from oil drain
hose (Figure 8). Drain oil completely into a suitable container.
Figure 8 — Location of Oil Drain Cap
• 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 operating 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.
• T urn 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
Generac NP-50LPG Recreational Vehicle Generator
OIL DIPSTICK
GENERAC
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CORPORATION
OIL FILL CAP
OIL DRAIN CAP
14
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 conditions (Figure 10):
• Remove both screws to loosen cover.
• Remove the COVER, FOAM PRE-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 b y 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
CLEAN OR REPLACE 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 periodically and remove all grass leaves, dirt, etc.from this area.
Figure 11 — Cleaning Air Intake Screen
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
does not fit firmly on spark plug terminal end. If
necessary, reform wire terminal to obtain a tight fit.
Figure 12 — Setting Spark Plug Gap
Generac NP-50LPG Recreational Vehicle Generator
CLEAN AREAS
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Recreational Vehicle Generator
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 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.
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 generators do not have a spark arrestor screen, but are of the more
efficient “toroid” or “swirl” type. To remove carbon and combustion deposits from such mufflers, remove the PLUG from
the muffler and run engine for about 15 minutes. Shut engine
down, 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 FLAMMABLE 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 adv erse 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 contact 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 conductor.
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 contaminate the generator fuel system.
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 and cables for tightness, corrosion.
Clean and/or tighten as needed.
Also check battery fluid level, and, if necessary, fill with DISTILLED 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 MIXTURE 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
PROTECTIVE 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 FOR RECHARGING.
Generac NP-50LPG Recreational Vehicle Generator
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Recreational Vehicle Generator
MAJOR SERVICE MANUAL
To obtain a ser vice manual for your generator, order it from
your dealer/distributor or contact the factory. Be sure to identify your MODEL NUMBER and 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 warranted for the life of the generator. Drive belt tension was
properly adjusted before the unit was shipped from the factory . 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 generator 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 generator 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 completely. Refill crankcase with SAE 10W30 oil having API
classification “For Service SF.”
• Attach a tag to the engine indicating the viscosity and classification of the oil in the crankcase.
• Remove spark plug and pour about two or three tablespoons of clean, fresh engine oil into spark plug threaded
opening. Crank engine sev eral times to distribute oil, then
install and tighten spark plug.
• Remove the battery and store in a cool, dry room on a
wooden board. Nev er 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 100% state of charge, or, if defective,
replace the battery.
• T urn OFF all electrical loads, add fuel if necessary, then start
the engine.
• Let the engine warm up.
• Apply electrical loads to at least 50% of the unit’s rated
wattage capacity.
• When engine is thoroughly warmed up, shut it down.
THE GENERATOR IS NOW READY FOR SERVICE.
Generac NP-50LPG Recreational Vehicle Generator
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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 contactor. 4. Replace if defective.
5. Defective starter motor. 5 Replace if defective.
6. Defective Controller circuit board 6. Replace if defective.
Engine cranks but won't start 1. Out of fuel 1. Replenish fuel.
2. Fuel shutoff valve is closed. 2. Open fuel shutoff valve.
3. Defective Controller circuit board 3. Replace if defective.
4. Spark plug defective. 4. Clean, regap or replace plug.
5. Defective ignition coil on engine 5. Replace if defective.
6. Defective carburetor 6. Replace if defective.
7. Dirty air cleaner. 7. Clean or replace elements as
needed.
8. Fuel solenoid is defective. 8. Replace or repair.
Engine starts hard, runs rough. 1. Dirty air cleaner. 1. Clean or replace elements as
needed.
2. Defective spark plug. 2. Clean, regap or replace plug.
3. Defective ignition coil. 3. Replace if defective.
Engine starts, shuts down when 1. Engine oil level is low. 1. Check oil and add oil as needed.
Start/Stop switch is released. 2. Engine is overheated. 2. Check cooling system for blockage.
3. Defective Low Oil Pressure Switch 3. Replace defective switch.
4. Defective Controller circuit board. 4. Replace defective board.
No AC output from generator. 1. Check main line circuit breaker. 1. Reset to ON or CLOSED.
2. Transfer switch (if so equipped) is set 2. Reset transfer switch.
to wrong position.
3. Failure in vehicle electrical system. 3. See vehicle manual.
4. Generator component failure. 4. Contact an authorized service
facility.
Recreational Vehicle Generator
Generac NP-50LPG Recreational Vehicle Generator
GENERAC
®
CORPORATION
ELECTRICAL DATA Drawing No. 94210
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Recreational Vehicle Generator
Generac NP-50LPG Recreational Vehicle Generator
GENERAC
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CORPORATION
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Recreational Vehicle Generator
Generac NP-50LPG Recreational Vehicle Generator
ELECTRICAL DATA Drawing No. 94210
GENERAC
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CORPORATION
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Recreational Vehicle Generator
Generac NP-50LPG Recreational Vehicle Generator
EXPLODED VIEW — BASE AND PULLEYS Drawing No. 95865
GENERAC
®
CORPORATION
ITEM DESCRIPTION PART NO. QTY. ITEM DESCRIPTION PART NO. QTY.
21
Recreational Vehicle Generator
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, RUBBER MOUNT 72391 2
8 SAFETY BOLT 5/16"-18 x 3 1/2" 77603 2
9 NUT, HEX-5/16-18 22259 2
10 NUT, FLANGED LOCK-M8-1.25 52858 6
11 CAPSCR. -M8-1.25 x 60MM 51730 2
12 SPRING, BELT TENSION 29459 2
13 WASHER, SPRING CNTR. 75215 2
14 SLIDE (NYLON) 73146 4
15 SUPPORT, NYLON SLIDE 75209 2
16 MANIFOLD, EXHAUST 91032 1
17 GASKET, EXHAUST MANIFOLD 90239 1
18 CAPSCR.,-M8-1.25 x 65 LG. 57636 2
19 GASKET, COLLECTOR PAN 92645 1
20 COVER PLATE -EXTERNAL 90859 1
21 PULLEY, ENGINE 75224-B 1
22 PULLEY, ALT. 73106-B 1
23 BELT (POLY V 4L)-40" 75216 1
24 WASHER, PULLEY RETAINER 49451 1
25 CAPSCR., HEX HD. 3/8"-24 x 1" 42633 1
26 GUIDE, BLOWER HOUSING 77017 1
27 CAPSCR., 3/8"-24 x 2-1/2" 73118 1
28 SCREW (TAPTITE)-M6-1.00 x 20 74906 2
30 HOUSING, BLOWER 72375 1
31 SPACER, BLOWER HOUSING 73185 1
32 LOCKWASHER, M5 22152 1
33 CAPSCR. -M5-0.80 x 80MM 77682 1
34 SPRING, GENERATOR SET MT 75242 4
35 COVER PLATE, EXH. BASE 92203 1
36 ADAPTOR, UNIVERSAL EXH. 91146 1
41 CLAMP, EXH. PIPE-1-1/4 DIA. 96289 1
4 2 HHCS & LOCK WASH.- M6-1.0 x 16 . 79246 8
43 GASKET, EXH. PIPE 77643 2
44 FOAM TAPE 29289 10FT.
45 LUG, GROUNDING 62684 1
46 WASHER, SPRING RETAINER 75237 4
47 COVER, AIR OPENING 75226 1
48 SCREW(CRIMPTITE) #10-24 x .5 56893 12
49 GASKET, FOAM-SLIDE PAN 75229 1
50 PAN, SLIDE 75227 1
51 FLAT WASHER-M6 22473 4
52 COVER, EXHAUST OUTLET 72384-C 1
53 LOCK WASHER, SHAKEPR.-M6 22447 2
57 NUT, FLANGE-5/16-18 (SPECIAL) 81105 2
58 DECAL, GROUND 67210A 1
59 SCREW, TAPTITE M5-0.8 x 10 . 74908 9
60 SCREW, TAPTITE M6-1.0 x 10 45756 5
61 FLAT WASHER-M10 22131 1
62 REGULATOR MOUNT .BRACK. 78864 1
63 REGULATOR 75211 1
64 FUEL SOLENOID 12VDC A2666 1
65 45° STREET ELBOW-3/4" 25425 1
66 STRAIGHT BARB. FIT.-1/2 x 3/8" 63463 1
67 HOSE CLAMP-SIZE-#8 57822 1
68 FUEL HOSE-1/2" DIA. x 8.50" 74994 1
69 90 °STREET ELBOW-3/4" 26307 3
70 PIPE, NIPPLE-3/4" x 3" LG 26881 1
71 M6-1.0 x 30 CAP SCREW 38750 2
72 M6 LOCK WASHER 22097 4
73 M6 HEX NUT 49813 4
74 FLEX SLEEV.-3/8" x 9" Lg. 84409 1
75 PIPE JOINT COMPOUND 55162 A/R
76 M6 x 16 HEX HD. CAPSCR. 47411 2
Generac NP-50LPG Recreational Vehicle Generator
REPAIR PARTS — BASE AND PULLEYS Drawing No. 95865
GENERAC
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CORPORATION
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Recreational Vehicle Generator
Generac NP-50LPG Recreational Vehicle Generator
EXPLODED VIEW — ALTERNATOR AND PANEL Drawing No. 94106
GENERAC
®
CORPORATION
ITEM DESCRIPTION PART NO. QTY. ITEM DESCRIPTION PART NO. QTY.
23
Recreational Vehicle Generator
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 Stud 77006 4
8 M8-1.25 Flange Lock Nut 52858 8
9 Brush Holder 66386 1
10 M5-0.8 x 16 Taptite 66849 2
11 Nylon Washer 27756 4
12 Generator Top Housing 86314 1
13 Resistor 75234 1
14 M6 Flat Washer 22473 3
15 M6 Lock Washer 22097 5
16 M6-1.0 x 60 Capscrew 74095 1
17 Ground Cable 90141 2
18 Shakeproof Lock Washer 22447 1
19 M6-1.0 x 20 Taptite 74906 4
20 P.C.B. Controller 94039 1
21 Starter Cable 10-74260 1
22 5/16 Lock Washer 22129 2
23 5/16-18 Hex Nut 22259 2
24 Panel Sheet Metal 86316 1
25 4-Pin Connector 53650 1
26 Connector 91915 1
27 Remote Harness 75244 1
28 M6-1.0 x 12mm Capscrew 66476 2
w/Lock Washer
29 Starter Contactor 86729 1
30 M4-0.7 x 16 Capscrew 75476 3
31 M4 Lock Washer 22264 4
32 Battery Charge Rectifier 65795 1
33 M3-0.5 x 15 Capscrew 90987 2
34 Panel Support Bracket 86317 1
35 M5-0.8 x 30 Capscrew 75235 3
36 Vibration Mount 82737 4
37 M6-1.0 Hex Nut 49813 4
38 M5-0.8 x 16 Capscrew 55440 1
39 M3 Lock Washer 43182 2
41 2.5A.-ON Circuit Breaker 53623 1
42 M5 Shakeproof Washer 22769 2
43 Regulator Voltage 83049 1
44 M5 Lock Washer 22152 6
45 M5-0.8 Hex Nut 51716 4
46 20A. Circuit Breaker 90144 1
47 30A All Units Cir. Breaker 90145 1
48 #6-32 w/Lockwasher Screw 25105 4
49 Panel Cover 86315 1
50 M4-0.7 x 16 Screw w/Lock 90734 4
Washer & Flat Washer
51 M4 Flat Washer 22985 1
52 Fuse Holder 32300 1
53 15A. AGC Fuse 22676 1
54 6A (Start/Stop) S.P.D.T. 87798 1
Switch
55 S.P.D.T. Switch (Fuel Pump) 92113 1
56 Terminal Block 75210A 1
57 M4 Shakeproof Washer 23365 1
58 M4-0.7 Hex Nut 51715 1
59 30A. CB Rating Decal 90157 1
60 20A. CB Rating Decal 90156 1
61 Cust. Connection Decal 89438A 1
62 Hose Clamp 31791 1
63 M5 Flat Washer 23365 1
64 M5 x 10 Taptite 74908 2
65 Bushing 23484S 1
66 Battery Cable Boot 75763A 1
67 Plastic Spacer 94070 1
68 M6-0.8 x 110 PPHMS. 94071 1
Generac NP-50LPG Recreational Vehicle Generator
REPAIR PARTS — ALTERNATOR AND PANEL Drawing No. 94106
GENERAC
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CORPORATION
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Recreational Vehicle Generator
Generac NP-50LPG Recreational Vehicle Generator
EXPLODED VIEW — ENGINE ENCLOSURE Drawing No. 94108
GENERAC
®
CORPORATION
ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION
25
Recreational Vehicle Generator
1 90953 1 SCROLL, FLYWHEEL
2 45756 8 SCREW, TAPTITE
M6-1.0 x 10 LG
3 90388 1 SCREW, TAPTITE
M6-1.0 x 12 LG
4 91222-A 1 FLYWHEEL (20 DEG.)
5 67198-N 1 WASHER, BELLVILLE M20
6 67890 1 NUT, M20 x 1.5
7 A4456 1 3/8” SPECIAL LOCK
WASHER
8 56893 23 SCREW, CRIMPTITE
#10-24 x .5 LG
9 98769 1 COVER,TOP FLYWHEEL
NP50
11 91646 1 DEFLCT., EXHAUST PORT
12 92572 1 ASSY., IGNITION COIL
13 92079 2 SCREW, TAPTITE
M6-1.0 x 25MM
14 22717-A 1 GROMMET, RUBBER
15 73132 1 BOOT, SPARK PLUG
16 91643 1 BRACKET, INTAKE
MANIFOLD SUPPORT
17 22717-B 1 GROMMET, RUBBER
18 22129 8 LOCK WASHER-M8
19 42907 2 CAPSCR., HEX HD.
M8-1.25 x 16 LG
20 57821 2 CAPSCR., HEX HD.
M8-1.25 x 40 LG
21 59637 2 SCREW, TAPTITE
3/8-16 x .75 LG
23 21544 1 MOTOR, STARTER-12VOLT
26 40976 2 SOCKET HD. CAPSCR.,
M8-1.25 x 20 LG
28 25034 1 PLUG, BUTTON-1.06
29 35467 1 CLOSE NIPPLE 3/8 NPT
30 27738-A 1 PIPE TEE 3/8” NPT
31 22145 2 FLAT WASHER
32 55934-T 1 CLAMP-VINYL COATED
33 91519 1 TUBE-DIPSTICK
34 91520 1 ASSY., CAP AND DIPSTICK
35 91648 1 <169>O<170> RING DIA.
14 x 3 WALL
36 43790 1 ELBOW, 3/8 I.D. -BRASS
37 47290 1 HOSE, 3/8 I.D.
38 35461 1 BARB FITTING-1/4” NPT
3/8 HOSE
39 69811 1 CAP-1/4” NPT
40 90951 1 COVER-BASE, STARTER
SIDE
41 90952 1 COVER-BASE, CARB. SIDE
42 91137 1 WRAPPER, ENGINE
SPARK PLUG
43 90954 1 WRAPPER, STARTER SIDE
44 90955 1 WRAPPER, REAR GEAR
CASE
45 90956 1 WRAPPER, CARB. SIDE
46 74260-10 1 ASSEMBLY., WIRE
STARTER(#16)
47 90892 1 SUPPORT, OIL FILTER
48 91159 1 BUSHING, RUBBER
49 91160 1 WASHER, RUBBER
50 91161 1 BOLT, SHOULDER
M6 x 15 LG
51 49821 2 BOLT, SOCKET HD.
CAPSCR.-M8-1.25 x 30 LG
52 86999 1 GASKET, OIL FILTER
SUPPORT
53 60108 1 SWITCH, OIL PRESSURE
10 PSI
54 75281 1 SWITCH, OIL TEMP.
55 74027 2 SCREW, PHILIPS PAN HD.
MACH.-M3-.05 x 5 LG
56 43182 2 LOCK WASHER-M3
57 70185 1 FILTER, OIL
58 90783-A 1 ENGINE, LONG BLOCK
GN360RV
99673 1 ENGINE, LONG BLOCK
GN410VSRV
59 82774 1 KEY, WOODRUFF
4 x 19 DIA.
60 65852 1 CLIP, HOSE RETAINER
61 74908 1 SCREW, TAPTITE
M5-0.8 x 10 LG
62 48031E 2 HOSE CLAMP
Generac NP-50LPG Recreational Vehicle Generator
REPAIR PARTS — ENGINE ENCLOSURE Drawing No. 94108
GENERAC
®
CORPORATION
26
Recreational Vehicle Generator
Generac NP-50LPG Recreational Vehicle Generator
EXPLODED VIEW — GN-410 ENGINE Drawing No. B2195
GENERAC
®
CORPORATION
27
Recreational Vehicle Generator
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 PISTON PIN RETAINER
6 73142 1 CYLINDER HEAD GASKET
7 73144 8 FLANGED HEX HD. CAPSCREW
8 73149 4 M10 x 100MM HEAD BOLT
9 76339 1 PISTON
10 76701 1 CRANKCASE GASKET
11 78698 2 M6 SCREW (THD. FORMING)
12 80308 2 BREATHER GASKET
13 80309 1 BREATHER COVER
14 80338 1 OIL BREATHER SEPARATOR
15 20527 1 DECAL, ENGINE
IDENTIFICATION
16 83897 2 TAPPET
17 72694 2 PIVOT BALL STUD
18 72696 2 JAM NUT (ROCKER ARM)
19 78672 1 SEAL, VALVE STEM
20 78694 1 PUSH ROD GUIDE PLATE
21 83907 2 ROCKER ARM
22 83923 1 CYLINDER HD. W/VALVE SEATS
AND GUIDES
23 86514 2 VALVE SPRING RETAINER
24 86515 4 VALVE SPRING KEEPER
25 86516 1 EXHAUST VALVE
26 86517 1 INTAKE VALVE
27 89673 2 WASHER, VALVE SPRING
28 91308 2 VALVE SPRING
29 83932 1 CAMSHAFT ASSEMBLY
30 72655 2 CRANKSHAFT SEAL
31 76361 1 THRUST WASHER
32 76362 1 PRESSURE RELIEF BALL
33 76365 1 GOVERNOR SPOOL
34 78645 1 GOVERNOR RETAINER (C-RING)
35 78691 1 OIL PRESSURE SPRING
RETAINER
36 74908 1 M5-0.80 x 8MM SCREW (THD.
FORMING)
37 83912 1 GOVERNOR GEAR ASSEMBLY
38 83918 1 OIL PRESSURE SPRING
39 72662 1 GOVERNOR SHAFT
40 83961A 1 OIL SUMP
41 72654 1 SLEEVE BEARING
42 78658 1 GOVERNOR ARM “R” PIN
43 78659 2 THRUST WASHER
44 78699B 1 SLEEVE DOWEL PIN DIA. 12
45 78699C 2 SLEEVE DOWEL PIN DIA. 14
46 83948 1 GOVERNOR ARM
47 87710 1 DOWEL PIN DIA. 12 x 20 LONG
48 89288A 1 CRANKCASE SUB ASSEMBLY
49 84430 1 BALANCER
50 86002 1 OUTER GEROTOR
51 86026 1 INNER GEROTOR
52 88396B 2 PUSH ROD
53 90416 1 CRANKSHAFT ASSEMBLY
54 90747 1 BREATHER VALVE ASSEMBLY
55 71987 1 ROCKER COVER GASKET
57 92362 1 ROCKER COVER W/FILL
58 92287 4 M6-1.00 x 16MM PAN HD. SCR.
AND LOCKWASHER
59 83921 1 BEARING TUBE SHAFT
60 77158 1 OIL SCREEN PICKUP ASSEMBLY
61 80342 2 “O” RING 14 I.D. x 2.4 THICK
63 76329 1 OIL FILL PLUG
64 86254 1 “O” RING 17.8 I.D. x 2.4 THICK
65 93064 1 OIL FILL CAP ASSEMBLY
REPAIR PARTS — GN-410 ENGINE Drawing No. B2195
GENERAC
®
CORPORATION
28
Recreational Vehicle Generator
Generac NP-50LPG Recreational Vehicle Generator
EXPLODED VIEW — ENGINE ACCESSORIES Drawing No. 95866
GENERAC
®
CORPORATION
ITEM PART NO. QTY. DESCRIPTION ITEM PART NO. QTY. DESCRIPTION
29
Recreational Vehicle Generator
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, CARB./MANIFOLD
6 A2775A 1 L/P CARBURETOR
7 90970 1 GASKET, CARB./AIR FILTER
8 73108C 1 BASE, AIR FILTER
9 91204 1 PLATE, CARB. SHIELD
10 59635 2 SCREW, PLASTITE #8 x .37"
11 66476 2 BOLT, HEX HD. CAPSCR., &
LOCK WASHER-M6 x 12 LG
12 92695 2 BOLT, CARB. MOUNT 80 LG
13 73111 1 FILTER, AIR
14 81646 1 PRE-CLEANER, AIR FILTER
15 73104-B 1 COVER, AIR FILTER
16 78609 2 BOLT, AIR FILTER COVER
17 20139 1 SNAP BUSHING
18 91554 1 DECAL, A/C DATA NP-50G
(360 ENGINE ONLY)
91554B 1 DECAL, A/C DATA NP-50G
(410 ENGINE ONLY)
39 92164 1 ASSEMBLY, GOV. SPRING
ADJ. BRACKET
40 83512 2 BOLT, TAPTITE M8 x 15 LG
41 83503 1 NUT, LOCKING M5- 0.8
42 91916 1 LEVER, GOVERNOR ARM
43 83532 1 BOLT, HEX HD. WASHER
/LOCK WASHER-M6 x 30
44 86681 1 NUT, M6 SPECIAL
45 91638 1 SPRING, GOVERNOR
46 91633 1 BELLCRANK, GOV. RODS
47 92586 2 WASHER, FELT
48 91161 1 BOLT, SHOULDER M6 x 15
49 91636 1 ROD, LINKAGE GOV.
LEVER-BELLCRANK
50 91637 1 ROD, LINKAGE BELLCRANK
-CARB.
51 91649 2 SPRING, A/L GOV. LEVER-
BELLCRANK
52 91645 1 BREATHER TUBE
53 22473 4 M6 FLAT WASHER
54 22097 2 M6 LOCK WASHER
55 A4009 1 SPRING WASHER
56 A7029 1 NYLON WASHER, .31 X .26
X .13
Generac NP-50LPG Recreational Vehicle Generator
REPAIR PARTS — ENGINE ACCESSORIES Drawing No. 95866
GENERAC
®
CORPORATION
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. 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 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 , improper
maintenance or unapproved modifications.
You are responsible for presenting your recreational vehicle generator engine to a Generac Corporation Authorized Service Outlet
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 Generac Corporation at:
GENERAC CORPORATION PH: (414) 544-4811
P.O. BOX 8 FAX: (414) 544-0179
WAUKESHA, WI 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 Corporation 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 Warranty 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 warranty 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 transporting 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.
IF YOU HAVE ANY QUESTIONS REGARDING YOUR WARRANTY RIGHTS AND RESPONSIBILITIES, YOU SHOULD CONTACT GENERAC CORPORATION AT 1-800-222-3136
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.
B. General Emissions Warranty Coverage: Generac Corporation warrants to the original, end-use purchaser of the new engine or
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 manufacturer'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 necessary" 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 replacement 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 warranted 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 Warranty 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 Generac 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 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
a. Gasoline carburetor assembly (if so equipped)
1) Fuel Filter (if so equipped)
2) Carburetor gaskets
3) Fuel pump
b. LP/Natural gas carburetion assembly
1) Fuel controller
2) Mixer and its gaskets (if so equipped)
3) Carburetor and its gaskets (if so equipped)
4) Primary gas regulator (if so equipped)
5) LP liquid vaporized (if so equipped)
2. Air cleaner assembly
a. Air filter element
b. Intake pipe
3. Ignition system including:
a. Spark plug
b. Ignition module
4. Catalytic muffler (if so equipped)
a. Muffler gasket (if so equipped)
b. Exhaust manifold (if so equipped)
5. Crankcase breather assembly and its components.
a. Breather connection tube
GENERAC
®
CORPORATION
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. During said warranty period, Generac will, at its option, repair or replace
any part which, upon examination by Generac or Generac A uthorized Distributors and/or Dealers, is found to be defective under
normal use and service.
This warranty is effective only upon Generac’s receipt prior to expiration of the warranty period of a completed Warranty Registration Card. This card is the only valid registration identification and must be presented at time of service. Claims will not be
accepted without presentation of Registration Card.
THREE YEAR WARRANTY SCHEDULE
1. All NP Series generators used in a recreational vehicle 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.
2. The drive train belt and pulleys (if so equipped) on NP air-cooled generator used in recreational vehicles shall be
warranted against failure due to defective materials or normal usage for the life of the generator. For the original
owner, this drive train 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 power train warranty shall cover belt or pulley parts only.
3. Rental units, demonstrators, prime power, or commercial applications, such as construction or utility, are warranted
for (1) one year or 2,000 hours, whichever comes first.
THIS WARRANTY DOES NOT COVER:
• 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.
• Any incidental, consequential or indirect damages caused by defects in materials or workmanship, or any delay in repair or replacement of 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-Series 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 fitness for a particular purpose to the extent permitted by law. The dur ation 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 1-800-333-1322. 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
P.O. Box 8 Waukesha, WI 53187 Telephone: (414) 544-4811 Fax: (414) 544-4851
Generac NP-50LPG Recreational Vehicle Generator
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