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DEK® is registered trademark of GXi Outdoor Power, LLC   Clayton, NC 27520 USA.  

No part of this publication can be printed or copied without written permission. 

4 of 16 

Rev. 1/2010 

Heavy Duty Power Equipment 

4550 Pro, 5650, 6500(EL), 7550 Pro 

This owner‟s manual is considered a permanent part of the gen-

erator and should remain with the generator if resold. The infor-

mation and specifications included in this publication were in 

effect at the time of approval for printing.  

GXi Outdoor Power, LLC, exclusive marketer of DEK Heavy 

Duty Power Equipment, reserves the right  to discontinue or 

change specifications or design at any time without notice and 

without incurring any obligation whatever. No part of this publi-

cation may be reproduced without written permission. 

The engine exhaust from this product contains chemicals 
known to the State of California to cause cancer, birth de-
fects or other reproductive harm.  

SAFETY LABEL LOCATIONS 

These labels warn you of potential hazards that can cause seri-

ous injury. Read them carefully.  If a label comes off or becomes 

hard to read, contact your DEK generator dealer for a replace-

ment. 

SAFETY INFORMATION 

DEK generators are designed to give safe and dependable ser-

vice if operated according to instructions. Read and understand 

this owner‟s manual before operating your generator.  

 

OPERATOR RESPONSIBILITY 

Know how to stop the generator quickly in case of emergency. 

Understand the use of all generator controls, output receptacles, 

and connections. Be sure that anyone who operates the genera-

tor receives proper  instruction. 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 operation. 

 

Do not enclose the generator in any structure. 

 

Do not smoke when refueling. 

 

Keep flammable materials away from the generator. 

 

The muffler becomes very hot during operation and remains 

hot for a while after stopping the engine. Be careful not to 

touch the muffler while it is hot.  

 

Let the engine cool before storing the generator indoors. 

 

Refuel in a well ventilated area with the engine stopped. 

 

Fuel vapors are extremely flammable and may ignite after 

the engine has started. Make sure that any spilled fuel has 

been wiped up before starting the generator. 

EMISSION CONTROL SYSTEM INFORMATION 

The U.S. and California Clean Air Acts 

EPA and California regulations require all manufacturers to fur-

nish written instructions describing the operation and mainte-

nance of emission control systems. The following instructions 

and procedures must be followed in order to keep the emissions 

from your DEK engine within the emission standards. Mainte-

nance, replacement, or repair of the emission control devices 

and systems may be performed by any engine repair establish-

ment or individual, using parts that are „„certified‟‟ to EPA stan-

dards. 

DANGER 

Connections to a Building Electrical System 

Connections for standby power to a building electrical system 

must be made by a qualified electrician. The connection must 

isolate the generator power from utility power, and must comply 

with all applicable laws and electrical codes. A transfer switch, 

which isolates generator power from utility power, is available 

through any of GXi‟s authorized dealers of DEK generators. 

 

 

 

 

 

Generator must be installed by a qualified electrician and 

connected to transfer equipment as a separately derived sys-

tem in accordance with the National Electrical Code, NFPA 

70. The generator shall be connected through transfer equip-

ment that switches all conductors other than the equipment 

grounding conductor. The frame of the generator shall be 

connected to an approved grounding electrode. 

 

Improper connections to a building electrical system can 

allow electrical current from the generator to backfeed into 

the utility lines. Such backfeed may electrocute utility com-

pany workers or others who contact the lines during a power 

outage, and the generator may explode, burn, or cause fires 

when utility 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 receptacles. The system ground is not connected to the 

AC neutral wire. If the generator is tested by a receptacle tester, it 

will not show the same ground circuit condition as for a home 

receptacle where the ground and neutral are connected. 

 

Special Requirements 

There may be Federal or State Occupational Safety and Health 

Administration (OSHA) regulations, local codes, or ordinances 

that apply to the intended use of the generator. Please consult a 

qualified electrician, electrical inspector, or the local agency hav-

ing jurisdiction.  

CARBON MONOXIDE GAS 

 

Exhaust contains poisonous carbon monoxide, a colorless 

and odorless gas. Breathing exhaust can cause loss of con-

sciousness and may lead to death. To keep exhaust gas 

from accumulating, use in an area with adequate ventila-

tion.  DO NOT use this generator in a garage, basement, 

crawlspace, enclosed shed, or any other area that does not 

have adequate ventilation.  DO NOT use this generator near 

ventilation ducts or open windows that may allow exhaust 

gasses to enter your home or business.  ONLY operate this 

generator outdoors. 

Electrocution Hazard 

 

Keep the generator dry.  

 

DO NOT use the generator in wet conditions, rain or 

snow, or near a pool or sprinkler system 

 

DO NOT use when your hands are wet 

 

NEVER START OR STOP THE ENGINE WITH DEVICES CON-

NECTED TO THE GENERATOR. 

WARNING 

WARNINGS 

DANGER 

DANGER 

WARNING 

Summary of Contents for 4550Pro

Page 1: ...tents 1 Tools and Accessories 2 DEK Product Lines 3 Missing Parts Request Form 4 Warnings 5 Warnings and Specifications 6 Component Identification 7 Wheel Kit Assembly Commissioning the Battery 8 Comm...

Page 2: ...dates most common handle bar designs The cover keeps water ice snow dust and dirt from damaging your genera tor when it is in storage It can also be used as a rain cover to protect the generator when...

Page 3: ...s Rental Grade Chipper Shredders For more information or where to purchase DEK outdoor power equipment visit us at www DEKPowerUSA com Comments Please indicate the part that you are missing Hardware b...

Page 4: ...engine within the emission standards Mainte nance replacement or repair of the emission control devices and systems may be performed by any engine repair establish ment or individual using parts that...

Page 5: ...nce or power cord to the generator 1 Make sure that appliances are in good working order Faulty appliances or power cords can create a potential for electrical shock If an appliance begins to operate...

Page 6: ...120V 12V DC Outlet Recoil Starter Assembly Air Filter Choke Lever Ground Lug Engine Serial Number stamped on the engine block Choke Lever Valve Cover Muffler Guard Alternator Exhaust Pipe Generator m...

Page 7: ...r sits idle for more than two 2 months it is best to recharge the battery to ensure it is fully charged when you need it and to increase battery life The battery is an optional feature The battery is...

Page 8: ...e from the battery negative terminal 2 Connect the other end of the positive battery cable to the generator positive terminal 3 Connect the positive battery cable to the battery posi tive terminal 4 C...

Page 9: ...HE ENGINE WITHOUT FILLING THE ENGINE WITH OIL Use SAE 10W 30 for normal conditions and SAE 5W 30 when the ambient temperature is below 32 F Engine Switch To start and stop the engine Engine ON OFF Swi...

Page 10: ...ts and extends exhaust system life Never use stale or contaminated gasoline or an oil gasoline mixture Avoid getting dirt or water in the fuel tank CARBON MONOXIDE GAS CARBON MONOXIDE Using a generato...

Page 11: ...nd B outlets to maxi mize the output power Appliances with electric motors require an additional 150 power when they are starting up indicated by an and in bold in the chart below To determine maximum...

Page 12: ...every 6 months 300 hrs or every 1 year Engine oil Check X Engine Oil Change X Air Cleaner Check X Air Cleaner Wash X Fuel filter Cup Clean X Spark Plug Clean X Spark Plug Change X Optional Spark Arres...

Page 13: ...vent fuel spillage Fuel vapor or spilled fuel may ignite Take care not to drop or strike the generator when transporting Do not place heavy objects on the generator When transporting the generator by...

Page 14: ...o service Call DEK for parts service Camshaft detent has failed Call DEK for parts service Head valve timing is off Call DEK for parts service Symptom Engine starts but then shuts off before 10 second...

Page 15: ...emove clean and replace Voltage not measured correctly Voltage must be measured between hot and neutral not hot and ground the ground is isolated Speed screw bent Call DEK for parts service Symptom Vo...

Page 16: ...BTAIN 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 purc...

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