Centurion 04791-0 Operating instructions

®
Owner’s Manual and
Installation Instructions
CENTURION 3500
Air-cooled, Prepackaged
Automatic Standby Generator
• Model: 04791-0
3.4kW LP
Not intended for use as Primary Power in place of utility
or in life-support applications.
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This manual should
remain with the unit.
DEADLY EXHAUST FUMES. OUTDOOR INTALLATION ONLY!!
DANGER

Generac®Power Systems, Inc.
INTRODUCTION
Thank you for purchasing this model of the CENTU-
RION product line by Generac Power Systems Inc.
This model is designed and manufactured to supply
electrical power for residences.
READ THIS MANUAL THOROUGHLY
If any portion of this manual is misunderstood, con-
tact the nearest Generac Authorized Service Dealer
for starting, operating and servicing procedures.
Throughout this publication, and on tags and decals
affixed to the generator, DANGER, WARNING, CAU-
TION and NOTE blocks are used to alert personnel to
special instructions about a particular operation that
may be hazardous if performed incorrectly or care-
lessly. Observe them carefully. Their definitions are
as follows:
After this heading, read instructions that, if not
strictly complied with, will result in serious person-
al injury, including death, as well as property dam-
age.
After this heading, read instructions that, if not
strictly complied with, may result in serious person-
al injury or property damage.
After this heading, read instructions that, if not
strictly complied with, could result in damage to
equipment and/or property.
NOTE:
After this heading, read explanatory statements
that require special emphasis.
These safety warnings cannot eliminate the hazards
that they indicate. Common sense and strict compli-
ance with the special instructions while performing
the service are essential to preventing accidents.
Four commonly used safety symbols accompany the
DANGER, WARNING and CAUTION blocks. The type
of information each indicates follows:
This symbol points out important safety infor-
mation that, if not followed, could endanger
personal safety and/or property of others.
This symbol points out potential explosion haz-
ard.
This symbol points out potential fire hazard.
This symbol points out potential electrical
shock hazard.
CONTENTS
This manual contains pertinent owner’s information,
including warranty, electrical diagrams, exploded
views and lists of repair parts for generator model
numbers 04791-0. In addition, the latter portion of
this manual contains information necessary for the
proper installation of these generators.
OPERATION AND MAINTENANCE
It is the owner'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 periodically by a Generac
Authorized Service Dealer. Normal maintenance ser-
vice and replacement of parts are the responsibility of
the owner and, as such, are not considered defects in
materials or workmanship within the terms of the
warranty. Individual operating habits and usage con-
tribute to the need for maintenance service.
Proper maintenance and care of the generator ensure
a minimum number of problems and keep operating
expenses at a minimum.
HOW TO OBTAIN SERVICE
When your generator requires servicing or repairs,
simply contact a Generac Authorized Service Dealer
for assistance. Service technicians are factory trained
and are capable of handling all service needs.
When contacting a Generac Authorized Service
Dealer about parts and service, always supply the
complete model number and serial number of the
unit as given on its data decal, which is located on the
generator.
Model No. ____________ Serial No. ______________
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DANGER
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AUTHORIZED SERVICE
DEALER LOCATION
To locate the nearest GENERAC AUTHORIZED
SERVICE DEALER, please call this number:
1-800-333-1322
ONLY DEALER LOCATION INFORMATION
CAN BE OBTAINED AT THIS NUMBER.

Table of Contents
CENTURION 3500 Home Standby Generator
Generac®Power Systems, Inc. 1
Part I – Owner’s Manual
Introduction ........................................Inside Front Cover
Read This Manual Thoroughly ....................................IFC
Contents ......................................................................IFC
Operation and Maintenance ........................................IFC
How to Obtain Service..................................................IFC
Authorized Service Dealer Locator Number ................IFC
Safety Rules ........................................................................2
Section 1 - General Information ....................................4
1.1 Generator Identification ........................................4
1.2 Unpacking/Inspection............................................5
1.3 Safety ....................................................................6
1.4 Protection Systems................................................6
1.5 Location ................................................................6
1.6 Specifications ........................................................6
Section 2 - Operation........................................................7
2.1 Generator Control Panel........................................7
2.2 Before Starting the Engine ....................................8
2.3 Battery Connection................................................8
2.4 The Battery ..........................................................9
2.5 Before Initial Start-up............................................9
2.6 Stopping the Generator ......................................10
2.7 Applying Loads to Generator ..............................10
2.8 Do Not Overload the Generator ..........................10
2.9 Protection Systems..............................................10
2.10 Additional Information ........................................12
Section 3 - Maintenance ................................................12
3.1 Checking the Engine Oil Level ............................12
3.2 Changing the Engine Oil and/or Oil Filter ..........12
3.3 Maintaining the Engine Air Cleaner ....................13
3.4 Clean Air Intake ..................................................14
3.5 Checking the Engine Spark Plug ........................14
3.6 Clean Spark Arrestor ..........................................14
3.7 Cleaning the Generator ......................................15
3.8 Battery Maintenance............................................15
3.9 Exercising the Generator ....................................16
3.10 Out of Service Procedure ....................................16
3.11 Adjusting Valve Clearance ..................................17
3.12 Generator Service Interval ..................................17
Part II – Installation Instructions
Safety Rules ......................................................................19
Section 1 - General Information ..................................21
1.1 Tools Required ....................................................21
1.2 Items That Must Be Purchased ..........................21
1.3 Plan the Location of the Generator......................21
Section 2 - Installation ..................................................22
2.1 Site Preparation and Generator Placement ........22
2.2 Power Cord Installation ......................................22
2.3 Mount Power Transfer Motor ..............................23
2.4 Install Propane Tanks ........................................23
2.5 Set System for Automatic Operation ..................25
2.6 How to Keep the Regulator Operating
Efficiently & Safely ..............................................25
2.7 What is Regulator Freeze Up?..............................25
Appendix 1 - Troubleshooting ......................................26
Appendix 2 - Notes..........................................................27
Appendix 3 - Electrical Data ........................................30
Appendix 4 - Exploded Views and Parts Lists ..........34
Appendix 5 - Warranty ..................................................48

2 Generac®Power Systems, Inc.
Study these SAFETY RULES carefully before
installing, operating or servicing this equipment.
Become familiar with this manual and with the unit.
The generator can operate safely, efficiently and reli-
ably only if it is properly installed, operated and
maintained. Many accidents are caused by failing to
follow simple and fundamental rules or precautions.
Generac cannot possibly anticipate every possibility
that might involve a hazard. The warnings in this
manual, and on tags and decals affixed to the unit,
are, therefore, not all-inclusive. If using a procedure,
work method or operating technique Generac does
not specifically recommend, satisfy yourself that it is
safe for others. Also make sure the procedure, work
method or operating technique chosen does not ren-
der the generator unsafe.
Despite the safe design of this generator, oper-
ating this equipment imprudently, neglecting
its maintenance or being careless can cause
possible injury or death. Permit only responsi-
ble and capable persons to operate or maintain
this equipment.
Potentially lethal voltages are generated by
these machines. Ensure all steps are taken to
render the machine safe before attempting to
work on the generator.
Parts of the generator are rotating and/or hot
during operation. Exercise care near running
generators.
GENERAL HAZARDS
• For safety reasons, Generac recommends that the
maintenance of this equipment is carried out by a
Generac Authorized Service Dealer.
• The generator engine releases DEADLY carbon
monoxide gas through its exhaust system. This
dangerous gas, if breathed in sufficient concentra-
tions, can cause unconsciousness or even death.
Never operate the generator inside any garage or
other enclosed area. 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) nausea, (c) vomit-
ing, (d) twitching muscles, (e) throbbing temples,
(f) dizziness, (g) headaches, (h) weakness, and (i)
sleepiness. IF EXPERIENCING ANY OF THESE
SYMPTOMS, MOVE INTO FRESH AIR IMMEDI-
ATELY. IF SYMPTOMS PERSIST, GET MEDICAL
HELP. Shut down the generator and do not operate
it until it has been inspected and repaired.
• The engine exhaust fumes contain carbon monox-
ide, which can be DEADLY. This dangerous gas, if
breathed in sufficient concentrations, can cause
unconsciousness or even death. This exhaust sys-
tem must be installed properly, in strict compli-
ance with applicable codes and standards.
Following installation, do nothing that might ren-
der the system unsafe or in noncompliance with
such codes and standards. Never operate this
equipment with a leaking or defective exhaust sys-
tem.
• Keep hands, feet, clothing, etc., away from drive
belts, fans, and other moving or hot parts. Never
remove any drive belt or fan guard while the unit is
operating.
• Adequate, unobstructed flow of cooling and venti-
lating air is critical to correct generator operation
and is required to expel toxic fumes and fuel vapors
from the generator. Without sufficient cooling air-
flow, the engine/generator overheats, which causes
serious damage to the generator. Do not alter the
installation or permit even partial blockage of ven-
tilation provisions, as this can seriously affect safe
operation of the generator.
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DANGER
Safety Rules
CENTURION 3500 Home Standby Generator
SAVE THESE INSTRUCTIONS – 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.
WARNING:
!!
This product contains or emits chemicals
known to the state of California to cause
cancer, birth defects or other reproductive harm.
WARNING:
!!
SAVE THESE INSTRUCTIONS – This manual contains important instructions that should be
followed during installation and maintenance of the generator and batteries.
!
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Generac®Power Systems, Inc. 3
• When working on this equipment, remain alert at
all times. Never work on the equipment when
physically or mentally fatigued.
• Inspect the generator regularly, and contact the
nearest Generac Authorized Service Dealer immedi-
ately for parts needing repair or replacement.
• Before performing any maintenance on the genera-
tor, disconnect its battery cables to prevent acci-
dental start up. Disconnect the cable from the bat-
tery post indicated by a NEGATIVE, NEG or (–)
first. Reconnect that cable last.
• 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 con-
ditions from leaking exhaust gases, fuel leakage,
oil leakage, etc.
ELECTRICAL HAZARDS
• The generator covered by this manual produces
dangerous electrical voltages and can cause fatal
electrical shock. Avoid contact with bare wires, ter-
minals, connections, etc., while the unit is running.
Ensure all appropriate covers, guards and barriers
are in place before operating the generator. If work
must be done around an operating unit, stand on
an insulated, dry surface to reduce shock hazard.
• Do not handle any kind of electrical device while
standing in water, while barefoot, or while hands
or feet are wet. DANGEROUS ELECTRICAL
SHOCK MAY RESULT.
• During installation, have the generator properly
grounded (bonded) by means of an approved
bonding conductor. DO NOT disconnect the bond-
ing conductor. DO NOT reconnect the bonding
conductor to any generator part that might be
removed or disassembled during routine mainte-
nance. If the grounding conductor must be
replaced, use only a flexible conductor that is of
No. 12 American Wire Gauge (AWG) copper wire
minimum.
• In case of accident caused by electric shock, imme-
diately shut down the source of electrical power. If
this is not possible, attempt to free the victim from
the live conductor. AVOID DIRECT CONTACT
WITH THE VICTIM. Use a nonconducting imple-
ment, such as a dry rope or board, to free the vic-
tim from the live conductor. If the victim is uncon-
scious, apply first aid and get immediate medical
help.
• Never wear jewelry when working on this equip-
ment. Jewelry can conduct electricity resulting in
electric shock, or may get caught in moving com-
ponents causing injury.
FIRE HAZARDS
• For fire safety, the generator must be installed and
maintained properly. Installation always must
comply with applicable codes, standards, laws and
regulations. Adhere strictly to local, state and
national electrical and building codes. Comply
with regulations the Occupational Safety and
Health Administration (OSHA) has established.
Also, ensure that the generator is installed in
accordance with the manufacturer’s instructions
and recommendations. Following proper installa-
tion, do nothing that might alter a safe installation
and render the unit in noncompliance with the
aforementioned codes, standards, laws and regu-
lations.
EXPLOSION HAZARDS
• Do not smoke around the generator. Wipe up any oil
spills immediately. Ensure that no combustible
materials are left in the generator compartment, or
on or near the generator, as FIRE or EXPLOSION
may result. Keep the area surrounding the genera-
tor clean and free from debris.
Safety Rules
CENTURION 3500 Home Standby Generator

4 Generac®Power Systems, Inc.
1. Generator Air Intake
2. Engine AUTO/OFF/MANUAL Switch
3. Fuse
4. LED Indicator
5. Demand Regulator (Inside Compartment)
6. Change-over Regulator
7. Circuit Breakers
8. Starter Contactor
9. Fuel Inlet
10. Tank Hook-ups.
11. Battery (In Compartment)
12. Oil Filter
13. Oil Drain (From Underside)
14. Oil Dipstick
15. Air Filter (Behind Access Panel)
16. Oil Fill
17. Spark Plug
18. Tank Hold Down Brace
19. Exhaust Hood
(Tailpipe and Spark Arrestor Inside)
20. Ground Lug
21. Data Decal (Located inside compartment)
Section 1 – General Information
CENTURION 3500 Home Standby Generator
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 __________________
0
72
3
4
7
0.8L/0.84
QT
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7
.5A
1.1 GENERATOR IDENTIFICATION
Model: 004700-0 — QUIETPACT 40G
21
18
10
19 13 14, 16 12 817 437
2
15
1
9
6
5
1
11
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Generac®Power Systems, Inc. 5
Section 1 – General Information
CENTURION 3500 Home Standby Generator
1.1.1 POWER TRANSFER MONITOR
The Power Transfer Monitor controls the automatic
function of the Centurion 3500 generator set. It’s six
foot utility sensing cord monitors the utility line when
it is plugged into a standard household 120 volt out-
let.
NOTE:
Automatic start-up upon utility power outage will
not occur if six foot sensing cord is not plugged
into a utility powered 120 volt outlet.
Figure 1.2 — Power Transfer Monitor
1. Generator Power Conduit (15 foot)
2. Circuit Breaker Reset (2)
3. Generator Power Indicator Lamp
4. Utility Power Indicator Lamp
5. Generator Exercise Switch
6. Switched GFCI Outlet
7. Standby GFCI Outlet
8. Utility Sensing Cord (6 foot)
1.1.1.1 Generator Power Conduit
This conduit connects the Power Transfer Monitor,
which is located inside the home, to the generator
outside.
1.1.1.2 Circuit Breaker Reset
If the generator should experience an overload for
any reason, the circuit breaker(s) will trip. The cir-
cuit breaker reset(s) should be pushed to reset after
overload condition has been corrected.
1.1.1.3 Generator Power Indicator Lamp
This lamp will illuminate when the generator has
started and is supplying power to the Power Transfer
Monitor’s GFCI outlets.
1.1.1.4 Utility Power Indicator Lamp
This lamp will be illuminated when normal utility
power is available.
1.1.1.5 Generator Exercise Switch
This switch activates the exercise cycle of the genera-
tor. Make sure the combined loads do not exceed gen-
erator capacity.
1.1.1.6 Switched GFCI Outlet
This outlet is powered by the utility and by the gen-
erator. When utility power is present is acts as anoth-
er normal household outlet. When the generator is
supplying power this outlet is then being supplied
with power from the generator.
NOTE:
There will be a momentary “No Power” period
between the time of utility failure and the genera-
tor start up.
1.1.1.7 Standby GFCI Outlet
This outlet is ONLY powered by the generator. Use it
for additional items during a utility power outage
when the generator is providing backup electricity for
the home.
1.1.1.8 Utility Sensing Cord
When plugged into a standard grounded 120 volt out-
let this cord allows the Power Transfer Monitor to
sense the utility line condition and react to a power
outage.
1.2 UNPACKING/INSPECTION
After unpacking, carefully inspect the contents for
damage.
• This standby generator set has been factory sup-
plied with a weather protective enclosure that is
intended for outdoor installation only.
• This standby generator set is prepackaged with an
automatic power transfer monitor. The power
transfer monitor is prewired with 15 foot conduit
and six foot utility sensing cord with plug. The
Power Transfer Monitor is for indoor installation
only.
If any loss or damage is noted at time of delivery, have
the person(s) making the delivery note all damage on
the freight bill or affix his or her signature under the
consignor’s memo of loss or damage.
If loss or damage is found after delivery, separate the
damaged materials and contact the carrier for claim
procedures if applicable.
Use this generator to supply electrical power for
operating 120-volt, single-phase, 60 Hertz, AC elec-
trical loads. These loads can require up to 3,400
watts (3.4 kW) of power, but cannot exceed 28.3 AC
amperes of current at 120 volts.
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6 Generac®Power Systems, Inc.
Section 1 – General Information
CENTURION 3500 Home Standby Generator
Do not overload the generator. Some installa-
tions may require that electrical loads be alter-
nated to avoid overloading. Applying exces-
sively high electrical loads may damage the
generator and may shorten its life. Add up the
rated watts of all electrical lighting, appliance,
tool and motor loads the generator will power
at one time. This total should not be greater
than the wattage capacity of the generator. If
an electrical device nameplate gives only volts
and amps, 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.
1.3 SAFETY
Before attempting to use the generator set, carefully
read the “Safety Rules” section of this manual.
Comply strictly with these rules to prevent accidents
and damage to equipment and/or property. We sug-
gest copying and posting the “Safety Rules” in poten-
tial hazard near the generator. Stress safety to all
operators and potential operators of this equipment.
1.4 PROTECTION SYSTEMS
Unlike an automobile engine, the generator may have
to run for long periods of time with no operator pre-
sent to monitor engine conditions. For that reason,
the engine is equipped with the following systems
that protect it against potentially damaging condi-
tions:
1. Overcrank
2. Overspeed
3. Low Oil Pressure Sensor
4. High Temperature Sensor
5. Underspeed
There is an LED readout on the control panel to noti-
fy personnel that one of these faults has occurred.
Detail of of the protection systems can be found in
Section 2.9.
1.5 LOCATION
Install the generator set, in its protective enclosure,
outdoors, where adequate cooling and ventilating air
is always available. Consider these factors:
• Install the unit where air inlet and outlet openings
will not become obstructed by leaves, grass, snow,
etc. If prevailing winds will cause blowing or drift-
ing, consider using a windbreak to protect the unit.
• Install the generator on high ground where water
levels will not rise and endanger it.
• Allow sufficient room on all sides of the generator
for maintenance and servicing. A good rule is to
allow three feet of space on all sides.
• Where strong prevailing winds blow from one
direction, face the generator air inlet openings to
the prevailing winds.
1.6 SPECIFICATIONS
1.6.1 FUEL REQUIREMENTS AND RECOM-
MENDATIONS
With LP gas, use only the LP vapor withdrawal sys-
tem. This type of system uses the vapors formed
above the liquid fuel in the storage tank.
Recommended fuel should have a BTU content of at
least 2,520 BTU's per cubic foot. Ask the LP fuel sup-
plier for the BTU content of the fuel.
This generator has been designed for a specific type
of tank. Acceptable tank types are DOT-4BA240 and
DOT-4BW240. Any deviation in tank type may not
allow the tank to fit in the LP enclosure.
Gaseous fuels such as liquid propane (LP) gas
are highly explosive. Even the slightest spark
can ignite such fuels and cause an explosion.
No leakage of fuel is permitted. LP gas, which
is heavier than air tends to settle in low areas.
1.6.2 FUEL CONSUMPTION
Fuel consumption is in gal/hr.
1.6.3 ENGINE OIL REQUIREMENTS
Use only high quality detergent oil rated with
American Petroleum Institute (API) Service
Classification SF, SG or SH. The recommended oil
weights include the following:
• During summer months: SAE 30. An acceptable
substitute is SAE 10W-30.
• During winter months: SAE 5W-30. DO NOT USE
SAE 10-W40.
Crankcase and oil filter capacity is approximately
800 mL or .84 U.S. quarts. Do NOT use special addi-
tives. See Sections 3.1 and 3.2 for oil level check and
fill procedures.
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DANGER
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Model 1/2 Load Full Load
Centurion 3500 0.55 0.73
(04791-0)

Generac®Power Systems, Inc. 7
Section 2 – Operation
CENTURION 3500 Home Standby Generator
1.6.4 ENGINE
Type of Engine ............................GN-220, Single-cylinder
Cooling Method..................................................Air-cooled
Rated Horsepower ..................................7.8 @ 4,200 rpm
Displacement............................................................220cc
Cylinder Block ....................Aluminum w/Cast Iron Sleeve
Type of Governor ........................Mechanical, Fixed Speed
Air Cleaner ..................Paper Element w/Foam Precleaner
Starter ................................................12-volt DC Electric
Ignition System ................Solid-state w/Flywheel Magneto
Recommended Spark Plug
Champion ..........................................................RC12YC
AC ..........................................................................R45S
Fram Autolite ..............................................................65
Spark Plug Gap ..................................0.03. inch (76 mm)
Recommended Minimum
Battery ......................................235cc Amperes @ 32°F/
195cc Amperes @ 0° F
1.6.5 GENERATOR
Rated Maximum Continuous
AC Output (LP)................................3,400 Watts (3.4kW)
Rated Voltage ................................................120 Volts AC
Rated Maximum Continuous
AC Current (LP) ........................................28.3 Amperes
Phase ......................................................................Single
Rotor RPM................................................................3,600
Number of Rotor Poles ....................................................2
Engine RPM..............................................................3,600
Rated AC Frequency ................................................60 Hz
Battery Charge Voltage ....................................14 Volts DC
Battery Charge Current ..........................2 Amperes (max)
Length ..................................................843 mm (33.2 in.)
Width ....................................................504 mm (19.8 in.)
Height ......................................................966 mm (38 in.)
Weight ......................................................90 kg (275 lbs.)
2.1 GENERATOR CONTROL PANEL
The following features are mounted on the generator
control panel (Figure 2.1):
Figure 2.1 — Generator Control Panel
2.1.1 SHUT DOWN INDICATOR
This LED will flash a specific number of times to indi-
cate a specific failure. Shutdowns and their failure
codes follow in Section 2.9, Protection Systems. These
codes can also be referenced on the decal located on
the air filter cover, located below the control panel.
2.1.2 AUTO/OFF/MANUAL SWITCH
2.1.2.1 Auto Position
Selecting this switch position activates fully automat-
ic system operation. It also allows the user the abili-
ty to start and exercise the generator from the remote
Power Transfer Monitor.
2.1.2.2 Off Position
This switch position shuts down the engine. This
position also prevents the engine from starting.
2.1.2.3 Manual Position
Selecting this switch position will crank and start the
engine. Transfer to standby power will not occur
unless there is a utility failure.
With the switch set to AUTO, the engine may
crank and start at any time without warning.
Such automatic starting normally occurs when
utility power source voltage drops below a pre-
set level or during the normal exercise cycle. To
prevent possible injury that might be caused by
such sudden starts, always set the switch to
OFF and remove the fuse before working on or
around the generator or transfer switch. Then,
place a “Do Not Operate” tag on the generator
panel and on the transfer switch.
2.1.3 FUSE
The generator panel's 7.5 amp fuse protects the DC
control circuit against overload. The fuse is wired in
series with the battery output lead to the panel. If the
fuse element has melted open, the engine cannot
crank or start. The same fuse also protects the bat-
tery charge circuit against overload. If the fuse ele-
ment has melted open, battery charging will not be
possible. Replace the fuse using only an identical 7.5
amp fuse.
2.1.4 MAIN BREAKERS
The main breakers protect the generator’s AC output
circuit against overload and provide a method of
turning OFF the generator’s 120-volt AC output to the
Power Transfer Monitor’s outlets. The CENTURION
3500 has two (2) 15-amp breakers.
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15 15
PULL TO DISCONNECT
GENERATOR POWER
CONTROL CENTER
AUTO
DETAILS OFF
SEE CHART
BELOW FOR
DOWN
INDICATOR
SHUT
MAN.
GREEN BAR INDICATES TRIP
PUSH TO RESET
GENERATOR
POWER
FUSE
7.5A
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8 Generac®Power Systems, Inc.
Section 2 – Operation
CENTURION 3500 Home Standby Generator
2.2 BEFORE STARTING THE ENGINE
NOTE:
Instructions and information in this manual
assume the generator has been properly installed
and connected.
2.2.1 ENGINE LUBRICATION
Have the engine crankcase properly serviced with the
recommended oil before starting. Refer to Section
1.6.2 and Sections 3.1 and 3.2, for oil servicing pro-
cedures and recommendations.
Any attempt to crank or start the engine before
it has been properly serviced with the recom-
mended oil may result in an engine failure.
2.2.2 FUEL SUPPLY
The engine must have an adequate supply of proper
fuel to operate. Before starting it, check that sufficient
fuel is available.
2.2.3 COOLING AND VENTILATING AIR
Air inlet and outlet openings in the generator com-
partment must be open and unobstructed for contin-
ued proper operation. Without sufficient cooling and
ventilating airflow, the engine/generator overheats,
which causes it to shut down and may damage the
generator.
2.2.4 ENGINE EXHAUST GAS
Before starting the generator engine, be sure there is
no way for exhaust gases to endanger people or ani-
mals. Close windows, doors near the generator that,
if open, might permit exhaust gases to do so.
The generator engine releases DEADLY carbon
monoxide gas through its exhaust system. This
dangerous gas, if breathed in sufficient concen-
trations, can cause unconsciousness or even
death. Never operate the generator set inside
any enclosed area. make sure THE EXHAUST
SYSTEM IS not LEAKING AND HAS NOT BEEN
DAMAGED. SYMPTOMS OF CARBON MONOX-
IDE POISONING ARE (a) inability to think coher-
ently, (b) nausea, (c) vomiting, (d) twitching
muscles, (e) throbbing temples, (f) dizziness, (g)
headaches, (h) weakness, and (i) sleepiness. IF
EXPERIENCING ANY OF THESE SYMPTOMS,
MOVE INTO FRESH AIR IMMEDIATELY. IF SYMP-
TOMS PERSIST, GET MEDICAL HELP. Shut down
the generator and do not operate it until it has
been inspected and repaired.
2.3 BATTERY CONNECTION
Before connecting the battery, complete the following
steps:
1. Set the generator's AUTO/OFF/MANUAL switch to
OFF.
2. Make sure the Power Transfer Monitor’s sensing
cord (6 foot) is not plugged into an electrical out-
let.
If the AUTO/OFF/MANUAL switch is not set to
its OFF position, the generator can crank and
start as soon as the battery cables are connect-
ed. If the utility power supply is not disabled
by unplugging the 6 foot sensing cord from
electrical outlet, sparking can occur at the bat-
tery posts and cause an explosion.
Battery cables were factory connected at the genera-
tor (Figure 2.2). Connect the cables to the battery
posts using the hardware supplied in the manual bag
as follows:
3. Slide the red battery terminal boot over the bat-
tery cable, then connect the cable (from the
starter contactor) to the battery post indicated by
a positive, POS or (+).
4. Connect the black battery cable (from frame
ground) and the two green grounding wires (from
the control panel) to the battery post indicated by
a negative, NEG or (-).
NOTE:
Damage will result if battery connections are made
in reverse.
Figure 2.2 — Battery Cable Connections
DANGER
!
DANGER
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