DEK G5000D User manual
Owner’s Manual
This manual contains important safety instrucons for gasoline generator models: G5000D, G8000D
that should be followed during installaon and maintenance of the generator and baeries.
READ SAFETY WARNINGS AND OPERATING INSTRUCTIONS CAREFULLY, SAVE THESE INSTRUCTIONS.
Contents:
2 BEAST Product Lines
3-4 Warnings
5 Warnings and Specicaons
6-7Component Idencaon
8 Wheel Kit Installaon & Baery Commissioning
9Controls
10-11 Operang the Generator
12 Maintenance
13 Maintenance, Transporng and Storage
14-15 Troubleshoong
16 Warranty and Service
HAVE QUESTIONS OR NEED HELP?
call our help-line: [1] 919-550-3259
or go to www.portablegenerator911.com or www.GXiOutdoorPower.com
DO NOT RETURN THIS GENERATOR
TO THE STORE
Date of Purchase: _______________________
Locaon of Purchase: _______________________
Serial #: _______________________
Have the following informaon ready when you call us:
2 of 16
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DEK is a registered trademark of The DEK Works or its aliates and are used under license by GXi Outdoor Power LLC.
No part of this publicaon can be printed or copied without wrien permission.
3 of 16Rev. Oct2016
Models: G5000D & G8000D
This owner’s manual is considered a permanent part of the generator
and should remain with the generator if resold. The informaon and
specicaons included in this publicaon were in eect at the me of
approval for prinng.
GXi Outdoor Power, LLC, reserves the right to disconnue or change
specicaons or design at any me without noce and without incur-
ring any obligaon whatever. No part of this publicaon may be re-
produced without wrien permission.
The engine exhaust from this product contains chemicals known to
the State of California to cause cancer, birth defects or other repro-
ducve harm.
SAFETY LABEL LOCATIONS
These labels warn you of potenal hazards that can cause serious
injury. Read them carefully. If a label comes o or becomes hard to
read, contact your DEK generator dealer for a replacement.
SAFETY INFORMATION
DEK generators are designed to give safe and dependable ser-
vice if operated according to instrucons. Read and under-
stand this owner’s manual before operang your generator.
OPERATOR RESPONSIBILITY
Know how to stop the generator quickly in case of emergency. Under-
stand the use of all generator controls, output receptacles, and con-
necons. Be sure that anyone who operates the generator receives
proper instrucon. Do not let children operate the generator.
Fire and Burn Hazards
The exhaust system gets hot enough to ignite some materials.
Keep the generator at least 3 feet (1 meter) away from buildings
and other equipment during operaon.
Do not enclose the generator in any structure.
Do not smoke when refueling.
Keep ammable materials away from the generator.
The muer becomes very hot during operaon and remains hot
for a while aer stopping the engine. Be careful not to touch the
muer while it is hot.
Let the engine cool before storing the generator indoors.
Refuel in a well venlated area with the engine stopped.
Fuel vapors are extremely ammable and may ignite aer the
engine has started. Make sure that any spilled fuel has been
wiped up before starng the generator.
EMISSION CONTROL SYSTEM INFORMATION
The U.S. and California Clean Air Acts
EPA and California regulaons require all manufacturers to furnish
wrien instrucons describing the operaon and maintenance of
emission control systems. The following instrucons and procedures
must be followed in order to keep the emissions from your DEK en-
gine within the emission standards. Maintenance, replacement, or
repair of the emission control devices and systems may be performed
by any engine repair establishment or individual, using parts that are
‘‘cered’’ to EPA standards.
DANGER
To connect directly to a building’s electrical system the generator
must be installed by a qualied electrician and connected to transfer
equipment as a separately derived system in accordance with the
Naonal Electrical Code, NFPA 70. The generator shall be connected
through transfer equipment that switches all conductors other than
the equipment grounding conductor. The frame of the generator shall
be connected to an approved grounding electrode.
Improper connecons to a building electrical system can allow electri-
cal current from the generator to back-feed into the ulity lines. Such
back-feed may electrocute ulity company workers or others who
contact the lines during a power outage, and the generator may ex-
plode, burn, or cause res when ulity power is restored.
Ground System
DEK portable generators have a system ground that connects generator
frame components to the ground terminals in the AC output recepta-
cles. The system ground is connected to the AC neutral wire.
Special Requirements
There may be Federal or State Occupaonal Safety and Health Admin-
istraon (OSHA) regulaons, local codes, or ordinances that apply to
the intended use of the generator. Please consult a qualied electri-
cian, electrical inspector, or the local agency having jurisdicon.
This generator does not meet US Coast Guard regulaon 33 CFR-183
and should not be used on marine applicaons.
CARBON MONOXIDE GAS
Exhaust contains poisonous carbon monoxide, a colorless and odor-
less gas. Breathing exhaust can cause loss of consciousness and may
lead to death. To keep exhaust gas from accumulang, use in an
area with adequate venlaon. DO NOT use this generator in a
garage, basement, crawlspace, enclosed shed, or any other area that
does not have adequate venlaon. DO NOT use this generator
near venlaon ducts or open windows that may allow exhaust
gasses to enter your home or business. ONLY operate this
generator outdoors.
Electrocuon hazard - Electricity can cause DEATH or SERIOUS INJU-
RY.
Do not operate the generator in standing water.
This product is not safe to operate when parally or totally sub-
merged in water.
Ensure proper drainage in the region surrounding this genera-
tor.
Properly ground the generator and verify ground is in place be-
fore each use. Grounding regulaons vary by locaon, consult a
qualied local electrician for proper grounding instrucons.
Power cords and electrical equipment pose a risk of shock and
electrocuon, especially if they are operated in wet condions.
Inspect all equipment prior to every use and use only as di-
rected by the manufacturer.
Use a cord with GFCI protecon when using the power outdoors
or when moisture is present.
Generators vibrate in normal use. During and aer the use of
the generator, inspect the generator as well as extension cords
and power supply cords connected to it for damage resulng
from vibraon. Have damaged items repaired or replaced as
necessary. Do not use plugs or cords that show signs of damage
such as broken or cracked insulaon or damaged blades.
NEVER START OR STOP THE ENGINE WITH DEVICES CONNECTED TO
THE GENERATOR.
WARNING
WARNINGS
DANGER
DANGER WARNING
DEK is a registered trademark of The DEK Works or its aliates and are used under license by GXi Outdoor Power LLC.
No part of this publicaon can be printed or copied without wrien permission.
4 of 16Rev. Oct2016
Models: G5000D & G8000D
WARNINGS
(I) WARNING: USING A GENERATOR INDOORS CAN KILL YOU IN MINUTES;
(II) GENERATOR EXHAUST CONTAINS CARBON
MONOXIDE, POISONOUS GAS YOU CANNOT SEE OR SMELL;
(III) NEVER USE IN THE HOME OR IN PARTLY ENCLOSED AREAS SUCH AS GAR-
AGES; AND USE ONLY OUTSIDE AND FAR FROM OPEN WINDOWS,
DOORS, AND VENTS.
(IV) THERE IS A PERMANENT CONDUCTOR BETWEEN THE GENERATOR
(STATOR WINDING) AND THE FRAME. THE SYSTEM GROUND IS CON-
NECTED TO THE AC NEUTRAL WIRE.
(V) FOR CANADIAN CUSTOMERS: CAUTION: FOR STANDBY SERVICE, CON-
NECT THE GENERATOR OUTPUT TO A SUITABLY RATED TRANSFER
SWITCH IN ACCORDANCE WITH THE CANADIAN ELECTRICAL CODE, PART
I. CONTACT A CERTIFIED ELECTRICIAN, ELECTRICAL INSPECTOR, OR CERTI-
FIED AGENCY THAT CAN CONNECT A TRANSFER SWITCH IN ACCORDANCE
WITH ALL LOCAL AND FEDERAL LAWS.
CSA and UL Warning
DANGER
DEK is a registered trademark of The DEK Works or its aliates and are used under license by GXi Outdoor Power LLC.
No part of this publicaon can be printed or copied without wrien permission.
5 of 16Rev. Oct2016
Models: G5000D & G8000D
WARNINGS
Failure to properly follow maintenance instrucons and pre-
cauons can cause serious injuries or death. Always follow
the inspecon and maintenance recommendaons and
schedules in this owner’s manual.
Safety Precauons:
Make sure the engine is o before you begin any maintenance
or repairs. This will eliminate several potenal hazards:
Carbon monoxide poisoning from engine exhaust.
Be sure there is adequate venlaon whenever you
operate the engine.
Burns from hot parts.
Let the engine and exhaust system cool before touch-
ing.
Injury from moving parts.
Do not run the engine unless instructed to do so.
In the State of California a spark arrestor is required by law.
Other states may have similar laws. Federal laws apply on all
federal lands. If you equip the muer with a spark arrestor, it
must be maintained in eecve working order. See page 12.
Rapid retracon of the recoil starter cord can pull the starter
cord back faster than you can let go. When starng the en-
gine, pull the cord slowly unl resistance is felt then pull rap-
idly to avoid kickback.
AC Applicaons
Before connecng an appliance or power cord to the genera-
tor:
1. Make sure that appliances are in good working order.
Faulty appliances or power cords can create a potenal for
electrical shock. If an appliance begins to operate abnor-
mally, becomes sluggish or stops suddenly, turn it o im-
mediately.
2. Disconnect the appliance, and determine whether the
problem is the appliance, or if the rated load capacity of
the generator has been exceeded.
3. Make sure that the electrical rang of the tool or appli-
ance does not exceed that of the generator. Never exceed
the maximum power rang of the generator. Power levels
between rated and maximum may be used for no more
than 30 minutes.
Substanal overloading will open the circuit breaker. Exceed-
ing the me limit for maximum power operaon or slightly
overloading the generator may not switch the circuit breaker
or circuit protector OFF, but will shorten the service life of the
generator.
Limit operaon requiring maximum power to 30 minutes. For
connuous operaon (longer than 30 minutes), do not exceed
80% of the rated power balanced equally on the A&B sides of
Changing the speed of the generator by adjusng the governor can cause damage to the generator,
devices aached to the generator, and may result in bodily injury. Do not adjust or tamper with
the engine speed seng.
Product Specicaons
DANGER
WARNING
Generator G5000D G8000D
Rated frequency 60 Hz 60 Hz
Rated voltage 120V / 240V 120V / 240V
Max connuous output power 5.0 kW (Max.) 8.0 kW (Max)
AC output (Max.) 20.8A 33.3A
Engine type OHV 4-Stroke OHV 4-Stroke
displacement 270 cc 420 cc
Compression rao 8.2:1 8.0:1
Rated rotaon speed 3600 RPM 3600 RPM
Rated power 10 Hp 15 Hp
Starng system Recoil Recoil and electric starter
Rotaon direcon Counter clockwise Counter clockwise
Fuel type Unleaded gasoline Unleaded gasoline
Low oil shutdown Yes Yes
Fuel tank size 12 gallons 12 gallons
Oil type / Capacity SAE 10W-30 0.9 quarts SAE 10W-30 1.1 quarts
Gross weight 207 lbs (94 kg) 235lbs (107kg)
Baery N/A 12 AH 12 VDC
Integrated voltmeter Yes Yes
DANGER
DEK is a registered trademark of The DEK Works or its aliates and are used under license by GXi Outdoor Power LLC.
No part of this publicaon can be printed or copied without wrien permission.
6 of 16Rev. Oct2016
Models: G5000D & G8000D
Fuel Tank Fuel Cap
Fuel Valve
Digital Meter
Baery (electric start opon only)
L14-30 240V/120V
Twist Lock Connector
Recoil Starter (Assembly)
Air Filter
Choke Lever
Ground Lug
Valve Cover
Muer Guard
Alternator
Exhaust Pipe
Generator models may have
dierent features and/or opons than
shown in these diagrams. DEK reserves
the right to alter product features and
specicaons without noce.
Component Idencaon
Pull Out Handle Bars
ON/OFF Switch
On/ O & Start Switch
(electric start opon)
Main Breaker
Carburetor
Main Breaker
Remote Generator Panel
DEK is a registered trademark of The DEK Works or its aliates and are used under license by GXi Outdoor Power LLC.
No part of this publicaon can be printed or copied without wrien permission.
7 of 16Rev. Oct2016
Models: G5000D & G8000D
Note: A spark arrestor was supplied with your generator and must be installed for use within the State of California. See supplemental instruc-
Addional equipment required to safely operate this generator:
1. Gas can.
2. Unleaded gasoline.
3. SAE 10W-30 - 1.1 quarts for DEK 11hp, 13hp, 14hp, and 15hp engines, 0.9 quarts required for DEK 10 HP.
4. An oil ll funnel.
5. Gasoline fuel stabilizer (for storing your generator).
6. 120V and/or 240V extension cords.
7. An adjustable wrench or a 12mm socket for oil changes.
Component Idencaon
Access panel latches
Weather Shield
Alternator
Access Panel
Oil drain bolt
Oil ll plug
Engine Serial Number stamped on the engine
block.
NOTE: The serial number is also located on the
box the generator was packaged in.
DEK is a registered trademark of The DEK Works or its aliates and are used under license by GXi Outdoor Power LLC.
No part of this publicaon can be printed or copied without wrien permission.
8 of 16Rev. Oct2016
Models: G5000D & G8000D
Commissioning the Baery
WARNING
Lead acid storage baeries contain sulfuric acid which can cause serious
injuries. The baery also gives o explosive gases. Keep sparks, ames
and cigarees away. Provide adequate venlaon when charging or using
baeries. Baery posts, terminals and related accessories contain lead
and lead compounds. Avoid spills of electrolyte and wash hands thorough-
ly aer handling.
Use gloves and safety glasses when handling and installing lead acid
baeries.
If you get electrolyte in your eyes, ush your eyes with clean water for 15
minutes and seek medical aenon. Keep out of reach of children.
The baery is an oponal feature. The baery is used to start a generator
equipped with an electric starter. Not all generators are sold with baeries.
Please verify with your retailer if you believe the baery is missing.
FOR YOUR SAFETY AND CONVENIENCE, THE
BATTERY WAS SHIPPED SEALED AND
PRE-CHARGED.
The baery is ready to be connected to the generator.
Approximate assembly me is 5
minutes.
Supplied with your generator:
1. Two(2) foot assemblies with two (2)
13 mm nuts.
2. Two (2) wheel axle assemblies.
Wheel Kit Assembly
Two pre-assembled, retractable, handle bars, one on
each side of the generator frame. Twist to lock / un-
lock. Pull or push to extend / retract.
Insert each foot assembly through
holes in the frame. Tighten nut with
13mm wrench or socket.
Step
1
Pre-assembled wheel / axle
assembly.
Insert each axle and ghten the
bolt to secure in place using a 13
mm wrench or socket.
Baery Terminals
Baery
Step
2
To connect the baery:
If the baery is secured in the frame, remove the baery.
Remove the heat shield beneath the engine; there are 2 bolts that
hold it in place.
Use an adjustable wrench or 8 mm socket to secure the BLACK wire to
the negave (-) terminal and the RED wire to the posive (+) terminal.
Place the baery in the baery tray.
Replace the heat shield by bolng it onto the engine.
Secure the baery with the hold down, rods, and wing nuts. Do not allow the wrench to contact any other part of the
generator when ghtening the baery terminals.
WARNING
DEK is a registered trademark of The DEK Works or its aliates and are used under license by GXi Outdoor Power LLC.
No part of this publicaon can be printed or copied without wrien permission.
9 of 16Rev. Oct2016
Models: G5000D & G8000D
Controls
Recoil Starter
To start the engine, pull the starter grip lightly unl resistance is felt,
then pull briskly.
NOTICE:
Do not allow the starter grip to snap back against the engine. Return
it gently to prevent damage to the starter.
The recoil starter is used to start the engine if the generator is not
equipped with a 12 volt baery to operate the starter motor, or if the
baery does not contain adequate charge to operate the starter mo-
tor.
Fuel Valve Lever
The fuel valve is locat-
ed between the fuel
tank and carburetor.
When the valve lever
is in the ON posion,
fuel is allowed to ow
from the fuel tank to
the carburetor. Be
sure to return the fuel
valve lever to the OFF
posion aer stopping
the engine.
Choke Rod
The choke is used to
provide an enriched
fuel mixture when
starng a cold engine.
It can be opened and
closed by operang
the choke rod manual-
ly. Pull the rod out
toward CLOSED to
enrich the mixture for
cold starng. Open
once the engine is
running.
WARNING
The engine was shipped without engine oil. DO NOT START THE
ENGINE WITHOUT FILLING THE ENGINE WITH OIL. Use SAE 10W-30
for normal condions and SAE 5W-30 when the ambient tempera-
ture is below 32° F.
Engine Switch
To start and stop the engine.
Engine ON / OFF / Start Switch
(electric start shown)
Turn clockwise to
turn fuel valve
on.
Oil Alert System
The Oil Alert system is designed to prevent engine damage caused by
an insucient amount of oil in the crankcase. Before the oil level in
the crankcase can fall below a safe limit, the Oil Alert system will au-
tomacally stop the engine (the engine switch will remain in the ON
posion). The Oil Alert system should not take the place of checking
the oil level before each use. If the engine stops and will not restart,
check the engine oil level (see page 14) before troubleshoong in
other areas.
Ground Terminal
The generator ground terminal is connected to
the frame of the generator, the metal non-current
-carrying parts of the generator, and the ground
terminals of each receptacle.
Before using the ground terminal, consult a qualied electrician,
electrical inspector or local agency having jurisdicon for local codes
or ordinances that apply to the intended use of the generator.
WARNING
RECOIL STARTER
STARTER GRIP
NOTE: SYSTEM GROUND IS CONNECTED TO THE AC NEUTRAL ON
THIS GENERATOR. CONSULT AN ELECTRICIAN WHEN CONNECTING
THIS GENERATOR TO YOUR HOME OR BUSINESS ELECTRICAL PANEL
TO ENSURE GROUNDING MEETS THE LOCAL ELECTRICAL CODE
DEK is a registered trademark of The DEK Works or its aliates and are used under license by GXi Outdoor Power LLC.
No part of this publicaon can be printed or copied without wrien permission.
10 of 16Rev. Oct2016
Models: G5000D & G8000D
Step 1.
Ensure all electrical loads are removed from the generator. Discon-
nect all the extension cords and ensure the main breaker is in the OFF
posion. Remove all ammable materials and debris from the area.
Make sure the generator is level.
Step 2.
Check the oil level.
Put the generator on a level surface with the engine stopped.
Remove the oil ller cap.
Check the oil level. If the oil level is low, ll it unl the oil is over-
owing. It will take approximately 0.9 - 1.5 quarts of oil depend-
ing on the model of generator.
If addional oil is need, SAE 10W-30 engine oil is recommended for
most general purpose applicaons. In cold weather climate, use SAE
5W-30.
Step 3.
Make sure there is fuel in the gasoline tank. Look at the fuel level
indicated by removing the fuel cap to inspect the contents of the fuel
tank. The fuel lter can also be inspected once the fuel cap is re-
moved. Ensure the fuel lter is clean of dirt and debris. Tightly se-
cure the fuel cap aer your inspecon is complete.
Fuel can damage paint and plasc. Be careful not to spill fuel when
lling your fuel tank. Damage caused by spilling fuel is not covered
under warranty. Use unleaded gasoline with a pump octane rang of
86 or higher. This engine is cered to operate on unleaded gasoline
only. Unleaded gasoline produces fewer engine and spark plug de-
posits and extends exhaust system life. Never use stale or contami-
nated gasoline or an oil/gasoline mixture. Avoid geng dirt or water
in the fuel tank.
CARBON MONOXIDE GAS
Using a generator indoors CAN KILL YOU IN MINUTES.
Generator exhaust contains carbon monoxide (CO). This is a
poison you cannot see or smell. If you can smell the genera-
tor exhaust, you are breathing CO. But even if you cannot
smell the exhaust, you could be breathing CO.
NEVER use a generator inside homes, garages, crawlspaces,
or other partly enclosed areas. Deadly levels of carbon mon-
oxide can build up in these areas. Using a fan or opening win-
dows and doors does NOT supply enough fresh air.
ONLY use a generator outside and far away from windows,
doors, and vents. These openings can pull in generator ex-
haust.
Even when you use a generator correctly, CO may leak into
the home. ALWAYS use a baery-powered or baery-backup
CO alarm in the home.
If you start to feel sick, dizzy, or weak aer the generator has
been running, move to fresh air RIGHT AWAY. See a doctor.
You could have carbon monoxide poison.
DANGER
Operang the Generator
DO NOT overll the tank. Leave a 1 inch air gap in the tank.
Gasoline is highly ammable and explosive. You can be burned or
seriously injured when refueling.
Stop engine and keep heat, sparks, and ame away.
Refuel only outdoors.
Wipe up spills immediately.
This portable generator is not for use with gasoline/ethanol blends
with over 15% ethanol.
WARNING
WARNING
Electrocuon hazard - Electricity can cause DEATH or SERIOUS INJURY.
Do not operate the generator in standing water.
This product is not safe to operate when parally or totally sub-
merged in water.
Ensure proper drainage in the region surrounding this generator.
Properly ground the generator and verify ground is in place before
each use. Grounding regulaons vary by locaon, consult a quali-
ed local electrician for proper grounding instrucons.
Power cords and electrical equipment pose a risk of shock and
electrocuon, especially if they are operated in wet condions.
Inspect all equipment prior to every use and use only as directed
by the manufacturer.
Use a cord with GFCI protecon when using the power outdoors
or when moisture is present.
Generators vibrate in normal use. During and aer the use of the
generator, inspect the generator as well as extension cords and
power supply cords connected to it for damage resulng from
vibraon. Have damaged items repaired or replaced as necessary.
Do not use plugs or cords that show signs of damage such as bro-
ken or cracked insulaon or damaged blades.
NEVER START OR STOP THE ENGINE WITH DEVICES CONNECTED TO
THE GENERATOR.
DANGER
DEK is a registered trademark of The DEK Works or its aliates and are used under license by GXi Outdoor Power LLC.
No part of this publicaon can be printed or copied without wrien permission.
11 of 16Rev. Oct2016
Models: G5000D & G8000D
Operang the Generator
Step 4.
Set the fuel valve lever to the ON posion by rotang it clockwise.
Step 5.
Pull the choke lever to the CLOSED posion. See page 7 for a diagram
of the choke lever.
Step 6.
Turn the generator ON/OFF switch to the “ON” posion.
Step 7.
Start the engine
1. If you have an electric starter, turn the switch to the START posi-
on, hold it there for 5 seconds and let it come to rest in the ON
posion once the engine has started.
2. If you are using the recoil starter, pull slightly on the cord unl
you feel some pressure. Once you feel the back-pressure build-
ing, rapidly pull the cord.
Step 8.
Once the generator is running, push the choke lever into the OPEN
posion.
Step 9.
Let the generator warm up for approximately 3 minutes before apply-
ing any electrical loads.
Step 10.
Apply loads to the generator one at a me, allowing the generator to
stabilize aer you add each incremental load. Add the loads with the
largest surge power requirement rst. This would include refrigera-
tors, air-condioners, large motors, and pumps. Add smaller loads
once the generator has stabilized with the larger loads.
ALWAYS UNPLUG APPLIANCES AND REMOVE ALL ELECTRICAL LOADS
BEFORE REFUELING. THEN FOLLOW STEPS 2 - 10.
Connecng a load larger than this
generator’s power rang may damage the circuit breakers, alternator
and sensive appliances.
Connuously loading this generator above 80% of its maximum output
power will shorten the life of the generator.
Balance the load evenly between the A and B outlets to maximize the
output power.
Appliances with electric motors require an addional 150%
power when they are starng up (indicated by an * and in bold
in the following chart ).
To determine maximum load that you may safely connect to this
generator:
1. Calculate the maximum connuous power required by adding up
the running power of each appliance. The total running power of
your appliances cannot exceed the maximum output power of
this generator.
2. Calculate the surge power by:
i) Adding up the running power of each appliance with an *
and in bold below.
ii) Mulplying the total by 1.5.
iii) Adding this to the total running power calculated in step 1
above.
The surge power requirements of your appliances cannot exceed
the surge power rang of this generator.
Typical Residenal Loads
Appliance Running Power
Light bulbs (each) 75 Was
Stove element (each) 1000 Was
Microwave 1500 Was
Coee maker 700 Was
Television 750 Was
VCR 250 Was
Computer & monitor 800 Was
Space heater 1500 Was
Washing machine 1000 Was
NG clothes dryer 750 Was
Electric clothes dryer 5500 Was
Dishwasher 1850 Was
Water heater 5000 Was
Electric furnace 5000 Was
Toaster 1200 Was
Box fan* 750 Was
Window A/C - 8000 BTU* 2400 Was
Central A/C (per ton)* 2800 Was
Furnace blower* 850 Was
2 hp well pump* 2000 Was
Refrigerator* 1000 Was
Freezer* 1000 Was
STOPPING THE GENERATOR
In normal use:
1. Turn the AC circuit breaker to the OFF posion (if applicable).
2. Disconnect all loads and extension cords.
3. Allow the engine to run with no load for 3 minutes.
4. Turn the engine switch to the OFF posion.
5. Turn the fuel valve lever to the OFF posion.
6. Allow the generator to cool o before touching any engine or alter-
nator components. It may take as long as 30 minutes before the
generator is cool enough to touch safely.
WARNING
For power outages, permanently installed staonary generators are
beer suited for providing backup power to the home. Even a proper-
ly connected portable generator can become overloaded. This may
result in overheang or stressing the generator components, possibly
leading to a generator failure.
In an emergency:
To stop the engine in an emergency, move the engine switch to the
OFF posion and turn the fuel valve OFF.
WARNING
DEK is a registered trademark of The DEK Works or its aliates and are used under license by GXi Outdoor Power LLC.
No part of this publicaon can be printed or copied without wrien permission.
12 of 16Rev. Oct2016
Models: G5000D & G8000D
Maintenance
MAINTENANCE
The Importance of Maintenance
Good maintenance is essenal for safe, economical, and trouble-
free operaon. It will also help reduce air polluon.
To help you properly care for your generator, the following pages
include a maintenance schedule, roune inspecon procedures, and
simple maintenance procedures using basic hand tools. Other ser-
vice tasks that are more dicult, or require special tools, are best
handled by professionals and are normally performed by a DEK
technician or other qualied mechanic.
The maintenance schedule applies to normal operang condions.
If you operate your generator under severe condions, such as sus-
tained high-load or high-temperature operaon, or use it in unusu-
ally wet or dusty condions, consult your servicing dealer for recom-
mendaons applicable to your individual needs and use.
Maintenance, replacement, or repair of the emission control devic-
es and systems may be performed by any engine repair establish-
ment or individual, using parts that are ‘‘cered’’ to EPA stand-
ards.
Replacement Parts
The emission control systems on your DEK engine were designed,
built, and cered to conform with EPA and California emission regu-
laons. We recommend the use of genuine DEK parts whenever you
have maintenance done. These original-design replacement parts are
manufactured to the same standards as the original parts, so you can
be condent of their performance. The use of replacement parts that
are not of the original design and quality may impair the eecveness
of your emission control system.
A manufacturer of an aermarket part assumes the responsibility
that the part will not adversely aect emission performance. The
manufacturer or rebuilder of the part must cerfy that use of the part
will not result in a failure of the engine to comply with emission regu-
Maintenance Schedule
* Should be performed by an authorized DEK service center.
Item Before
each use
20 hrs or
3
months
50 hrs or
3
months
100 hrs
or 6
months
300 hrs
or 1
year
Engine oil (Check) X
Engine Oil (Change) X
Air Cleaner (Check) X
Air Cleaner Wash X
Fuel lter Cup (Clean) X
Spark Plug (Clean) X
Spark Plug (Change) X
Oponal Spark Arrestor (Clean) X
Valve Clearance (Adjust) X*
Fuel Tank and Filter (Clean) X*
Fuel Tube (Check)
Combuson Chamber (Clean)
Every 2 yrs (replace if necessary)*
Aer every 250 hrs*
Engine Oil Change
Drain the oil while the engine is warm to assure rapid and complete
draining.
1. Remove the drain plug and sealing washer, remove the oil ller
cap, and drain the oil.
2. Reinstall the drain plug and sealing washer. Tighten the plug
securely.
3. Rell with the recommended oil (SAE 10W-30 ) and check the oil
level.
Dispose of used motor oil in a manner that is compable with the
environment. Do not throw it in the trash, pour it on the ground, or
down a drain.
Air Cleaner Service
A dirty air cleaner will restrict air ow to the carburetor. To prevent
carburetor malfuncon, service the air cleaner regularly. Service more
frequently when operang the generator in extremely dusty areas.
NOTICE:
Never run the generator without the air lter. Rapid engine wear will
result.
1. Unsnap the air cleaner cover clips, remove the air cleaner cover,
and remove the element.
2. Wash the air cleaner element in a soluon of household deter-
gent and warm water, then rinse thoroughly, or wash in nonam-
mable or high ashpoint solvent. Allow the air cleaner element to
dry thoroughly.
3. Soak the air cleaner element in clean engine oil and squeeze out
the excess oil. The engine will smoke during inial startup if too
much oil is le in the air cleaner element.
4. Reinstall the air cleaner element and the cover.
Fuel Filter Cleaning
The fuel lter cup / screen prevents dirt which may be in the fuel from
entering the carburetor. The fuel lter should be inspected and
cleaned on a regular basis. For best results, clean the lter with gaso-
line and a toothbrush or blow the debris out of the lter with air pres-
Spark Plug Service
In order to service the spark plug, you will need a spark plug wrench.
Recommended spark plugs: BPR5ES (NGK) and W16EPR-U (DENSO).
To ensure proper engine operaon, the spark plug must be properly
gapped and free of deposits.
If the engine has been running, the muer will be very hot. Be careful
not to touch the muer.
1. Remove the spark plug cap.
2. Clean any dirt from around the spark plug base.
3. Use a spark plug wrench to remove the spark plug.
DEK is a registered trademark of The DEK Works or its aliates and are used under license by GXi Outdoor Power LLC.
No part of this publicaon can be printed or copied without wrien permission.
13 of 16Rev. Oct2016
Models: G5000D & G8000D
4. Visually inspect the spark plug. Discard
it if the insulator is cracked, chipped or
fouled.
5. Measure the plug gap with a feeler
gauge. Correct as necessary by carefully
bending the side electrode. The gap
should be: 0.028 to 0.031 in (0.70 to
0.80 mm)
6. Check that the spark plug washer is in good condion, and
thread the spark plug in by hand to prevent cross-threading.
7. Aer the spark plug is seated, ghten with a spark plug wrench
to compress the washer.
If installing a new spark plug, ghten 1/2 turn aer the spark plug
seats to compress the washer. If reinstalling a used spark plug, ghten
1/8 to 1/4 turn aer the spark plug seats to compress the washer.
NOTICE:
The spark plug must be securely ghtened. An improperly ghtened
spark plug can become very hot and could damage the engine. Use
only the recommended spark plugs or equivalent.
Oponal Spark Arrestor Maintenance
If the generator has been running, the muer will be very hot. Allow
it to cool before proceeding. The spark arrestor must be serviced
every 50 hours to keep it funconing as designed.
Clean the spark arrestor as follows:
1. Loosen the screw by the exhaust port of the muer and remove
the spark arrestor.
2. Use a brush to remove carbon deposits from the spark arrestor
screen. Inspect the screen for breaks or tears and replace it if
necessary.
3. Install the spark arrestor in the reverse order of removal.
Maintenance
TRANSPORTING
When transporng the generator, turn the engine switch and the fuel
valve OFF. Keep the generator level to prevent fuel spillage. Fuel va-
por or spilled fuel may ignite.
Take care not to drop or strike the generator when transporng. Do
not place heavy objects on the generator. When transporng the
generator by loading it on to a vehicle, secure to the generator frame
DANGER
Contact with a hot engine or
exhaust system can cause seri-
ous burns or res. Let the en-
gine cool before transporng or
storing the generator.
STORING
Before storing the unit for an extended period:
1. Be sure the storage area is free of excessive humidity and dust.
2. Service according to the table below:
STORAGE TIME Service Procedures to prevent hard starng:
1 to 2 months Fill with fresh gasoline and add gasoline stabilizer*.
2 to 12 months Fill with fresh gasoline and add gasoline stabilizer*.
Drain the carburetor oat bowl.
1 year or longer
Fill with fresh gasoline and add gasoline stabilizer*.
Drain the carburetor oat bowl.
Remove the spark plug. Put a tablespoon of engine oil
into the cylinder. Turn the engine slowly with the recoil
starter to distribute the oil. Reinstall the spark plug.
Change the engine oil.
Aer removal from storage, drain the stored gasoline
into a suitable container, and ll with fresh gasoline
before starng.
* Use gasoline stabilizers that are formulated to extend storage life. Con-
tact your authorized DEK generator dealer for condioner recommenda-
ons.
WARNING
Gasoline is extremely ammable and is explosive under certain con-
dions. Perform this task in a well-venlated area with the engine
stopped. Do not smoke or allow ames or sparks in the area during
this procedure.
SPARK ARRESTOR
SCREW
DEK is a registered trademark of The DEK Works or its aliates and are used under license by GXi Outdoor Power LLC.
No part of this publicaon can be printed or copied without wrien permission.
14 of 16Rev. Oct2016
Models: G5000D & G8000D
Troubleshoong
Symptom: Potenal Causes Soluon
Engine won't start Fuel valve o/out of fuel Fill tank with fuel and turn fuel valve on
Engine Switch in o posion Turn engine switch to on posion
Spark arrestor clogged Remove spark arrestor, clean and replace.
Choke is open Close choke by pulling choke handle out.
Open choke aer starng.
Oil level too low Fill oil to top of opening with recommend-
ed grade of oil.
Oil oat stuck in shipment Fill oil to top of opening, disconnect the
yellow wire from the low oil level switch.
The switch is located on the engine above
the oil drain plug. It is a small gold colored
box with a yellow and a black wire.
Start the unit and run it for one hour mini-
mum - this will get enough movement of
hot oil to free the oat if this is the cause.
Re-aach the yellow wire and run the unit.
Fuel lter is dirty Check for fuel ow to carburetor by remov-
ing drain screw. Clean or replace fuel lter.
Fuel is contaminated Drain fuel tank and carburetor. Replace or
clean lter and carburetor oat bowl. Fill
tank with clean fuel.
Spark plug boot o/loose Press spark plug boot rmly on spark plug.
Spark plug fouled or failed Remove spark plug, clean or replace
Carburetor clogged Remove oat bowl and clean components
and jets. Replace carburetor if varnish or
gum has accumulated from improper stor-
age.
Recoil is hard to pull Spark arrestor clogged Remove, clean and replace.
Engine ooded with fuel aer storage with
fuel valve in on posion
Remove spark plug and slowly pull recoil to
discharge excess fuel. Clean and re-install
spark plug.
Valve clearance too large Rest exhaust valve clearance to .008", call
customer help line.
Engine starts, but then shuts o
aer running for short me
Remove/Clean spark arrestor Remove, clean and replace.
Oil level too low Fill oil to top of opening with recommend-
ed grade of oil.
Fuel valve o/out of fuel Fill tank with fuel and turn fuel valve on
Spark plug fouled or failed Remove spark plug, clean or replace
Engine runs: rough/vibrang/
oscillang
Remove/Clean spark arrestor Remove, clean and replace.
The choke is not open Push choke lever in.
Over loading generator Disconnect some appliances
Air lter is dirty Clean air lter
Fuel lter is dirty Check for fuel ow to carburetor by remov-
ing drain screw. Clean or replace fuel lter.
Fuel is contaminated Drain fuel tank and carburetor. Replace or
clean lter and carburetor oat bowl. Fill
tank with clean fuel.
DEK is a registered trademark of The DEK Works or its aliates and are used under license by GXi Outdoor Power LLC.
No part of this publicaon can be printed or copied without wrien permission.
15 of 16Rev. Oct2016
Models: G5000D & G8000D
Troubleshoong
Symptom: Potenal Causes Soluon
Engine runs, low speed, bogs
down under load or does not
maintain 60Hz
Remove/Clean spark arrestor Remove, clean and replace.
Choke is not open Push choke lever in
Over loading generator Disconnect some appliances / devices
Air lter is dirty Clean air lter
Fuel lter is clogged Contaminates will clog lter, not allowing
fuel to get to engine
Fuel lter is dirty Check for fuel ow to carburetor by remov-
ing drain screw. Clean or replace fuel lter.
Fuel is contaminated Drain fuel tank and carburetor. Replace or
clean lter and carburetor oat bowl. Fill
tank with clean fuel.
Engine oil leak Oil ll cap loose or cross threaded Wipe all oil o unit, remove both oil ll
caps, inspect and replace. Tighten securely.
Oil drain plug loose ghten both drain plugs
Debris under oil drain plug gasket Remove drain plug and debris. Inspect gas-
ket for damage and replace if damaged.
Loose crankcase bolt(s) Tighten crankcase bolts
Valve cover bolt loose Tighten bolt
Oil leaking from sha Oil seals failed, call customer help line
Fuel leak at tank shut-o Shut-o valve loose Tighten nut on shut-o valve/replace shut-
o valve
Fuel leaking out of carburetor Fuel drain screw loose Tighten fuel drain screw
Carburetor oat seat not seang Flush with clean fuel
Engine runs, Volt meter shows 0
Volts, no power to outlets
Breaker tripped Disconnect all loads and turn breaker to o
and back to on to reset.
Disconnected or damaged wiring inside unit Call customer helpline
Engine runs and volt meter
shows 240VAC but no power
goes to connected devices
Faulty extension cord/power strip Use dierent power strip or extension
cord
Breaker or GFCI tripped on extension cord or
power strip
Rest breaker and remove loads from power
strip
Voltage too high/low Engine speed low or high Verify frequency reading is 58Hz to 62Hz
on meter. Call customer helpline if fre-
quency is above 58Hz. See engine speed
troubleshoong if engine speed is below
58Hz.
Alternator damaged Call customer helpline
Speed screw damaged or bent Call customer helpline
Voltage is 120 VAC on 1 phase
but too high/low on other phase
Alternator phase is damaged Call customer helpline
DEK is a registered trademark of The DEK Works or its aliates and are used under license by GXi Outdoor Power LLC.
No part of this publicaon can be printed or copied without wrien permission.
16 of 16Rev. Oct2016
Models: G5000D & G8000D
Limited Warranty & Service
PRODUCTS COVERED BY THIS WARRANTY: LENGTH OF WARRANTY:*
(FROM THE DATE OF ORIGINAL RETAIL PURCHASE)
NONCOMMERCIAL/
NONRENTAL COMMERCIAL RENTAL
Engine 24 months / 200 hours 6 months / 200 hours 3 months / 200 hours
Baery 3 months 3 months 3 months
Alternator 24 months / 200 hours 6 months / 200 hours 3 months / 200 hours
Electrical and Frame Components 24 months / 200 hours 6 months /200 hours 3 months / 200 hours
Emission Controls 24 months 24 months 24 months
*LENGTH OF WARRANTY: All warranty coverage except emission controls expires when the operang hours exceed 200 hours.
TO QUALIFY FOR THIS WARRANTY:
The product must be purchased in the United States from a dealer authorized by GXi Outdoor Power, LLC to sell those products. This warranty applies to rst
retail purchaser / owner during the applicable warranty me period. SAVE YOUR PROOF OF PURCHASE RECEIPT.
WHAT DEK POWER EQUIPMENT WILL REPAIR OR REPLACE UNDER WARRANTY:
DEK will repair or replace, at its opon, any part that is proven to be defecve in material or workmanship under normal use during the applicable warranty me
period subject to the exclusions stated herein. This warranty is void if the owner fails to follow the prescribed maintenanc e and operang procedures described
in this manual. This specically refers to ensuring roune oil changes are made, that fuel stabilizer is used for long-term storage, that the generator is not over-
loaded, and that the generator loads are distributed evenly between the A and B outlets. Dirty carburetors, spark plugs, air lters, fuel lters, and freight or
handling damage are not covered under warranty.
DEK has the right to recover warranty administraon costs from the owner if the root cause of the malfuncon was found to be other than defecve material or
workmanship. In parcular, this warranty does not cover: contaminants in the fuel or oil; damage caused by not following the prescribed warnings and operang
pracces; failure to follow proper maintenance and storage procedures; and physical damage due to shipping or handling or storage. Damage to the generator
that occurs as a result of connecng a DEK generator to household wiring without the use of a UL approved transfer switch device that is connected to the home
or business and grounded as per applicable local electrical codes, is not covered by this warranty.
Warranty repairs will be made without charge for parts and labor for the rst year. Aer the rst year, this limited warranty covers the costs of replacement
parts only.
TO OBTAIN WARRANTY SERVICE:
You must take the DEK Power Equipment product, accessory, replacement part, apparel or the power equipment on which the accessory or replacement part is
installed, and proof of purchase, at your expense, to any DEK Power Equipment service locaon in the United States, who is a uthorized to service that product,
during the service locaon’s normal business hours. If you are unable to obtain warranty service, or are dissased with t he warranty service you receive, take the
following steps: First, contact the manager of the service center involved; normally this will resolve the problem. However, if you should require further assistance,
EXCLUSIONS:
THIS WARRANTY DOES NOT EXTEND TO PARTS AFFECTED OR DAMAGED BY ACCIDENT AND/OR COLLISION, NORMAL WEAR, FUEL CONTAMINATION, USE IN AN
APPLICATION FOR WHICH THE PRODUCT WAS NOT DESIGNED OR ANY OTHER MISUSE, NEGLECT, INCORPORATION OR USE OF UNSUITABLE ATTACHMENTS OR
PARTS, UNAUTHORIZED ALTERATION, OR ANY CAUSES OTHER THAN DEFECTS IN MATERIAL OR WORKMANSHIP OF THE PRODUCT. Consumable parts such as oil,
spark plugs, lters, carburetors, are not covered by this warranty.
DISCLAIMER OF CONSEQUENTIAL DAMAGE AND LIMITATION OF IMPLIED WARRANTIES:
DEK DISCLAIMS ANY RESPONSIBILITY FOR LOSS OF TIME OR USE OF THE PRODUCT, TRANSPORTATION, COMMERCIAL LOSS, OR ANY OTHER INCIDENTAL OR CON-
SEQUENTIAL DAMAGE. ANY IMPLIED WARRANTIES ARE LIMITED TO THE DURATION OF THIS WRITTEN LIMITED WARRANTY.
This warranty is void if the manufacturing date and the serial number on the equipment has been removed or the equipment has been modied.
EMISSION CONTROL SYSTEM INFORMATION
The U.S. and California Clean Air Acts
EPA and California regulaons require all manufacturers to furnish wrien instrucons describing the operaon and maintenance of emission control systems.
The following instrucons and procedures must be followed in order to keep the emissions from your DEK engine within the emission standards. Maintenance,
replacement, or repair of the emission control devices and systems may be performed by any engine repair establishment or individual, using parts that are
‘‘cered’’ to EPA standards.
The emission control systems on your DEK engine were designed, built, and cered to conform with EPA regulaons. We recommend the use of genuine DEK
parts whenever you have maintenance done. These original-design replacement parts are manufactured to the same standards as the original parts, so you can
be condent of their performance. The use of replacement parts that are not of the original design and quality may impair the eecveness of your emission
control system. A manufacturer of an aermarket part assumes the responsibility that the part will not adversely aect emission performance. The manufacturer
or re-builder of the part must cerfy that use of the part will not result in a failure of the engine to comply with emission regulaons.
Emission controls are covered by this warranty for all uses for a period of 2 years from original retail purchase date, this coverage extends to subsequent owners
of the product with proof of original purchase. For emissions warranty service call 1-800-393-0668 or e-mail customerservice@gxioutdoorpower.com .
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