STANLEY is a registered trademark of The Stanley Works or its affiliates and are used under license by GXi Outdoor Power LLC. 
No part of this publication can be printed or copied without written permission. 
4 of 16 Rev. 5/2010 
Models: G5000S & G8000S 
This owner’s manual is considered a permanent part of the generator 
and should remain with the generator if resold. The information and 
specifications included in this publication were in effect at the time of 
approval for printing.  
GXi Outdoor Power, LLC, reserves the right  to discontinue or change 
specifications or design at any time without notice and without incur-
ring any obligation whatever. No part of this publication may be repro-
duced without written permission. 
The engine exhaust from this product contains chemicals known to 
the State of California to cause cancer, birth defects or other re-
productive harm.  
SAFETY LABEL LOCATIONS 
These labels warn you of potential hazards that can cause serious 
injury. Read them carefully.  If a label comes off or becomes hard to 
read, contact your STANLEY generator dealer for a replacement. 
SAFETY INFORMATION 
STANLEY generators are designed to give safe and dependable 
service if operated according to instructions. Read and under-
stand this owner’s manual before operating 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-
nections. Be sure that anyone who operates the generator 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 muf-
fler 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 en-
gine 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 furnish 
written instructions describing the operation and maintenance of emis-
sion control systems. The following instructions and procedures must 
be followed in order to keep the emissions from your STANLEY 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 
‘‘certified’’ to EPA standards. 
DANGER 
 
Generator must be installed by a qualified electrician and con-
nected to transfer equipment as a separately derived system in ac-
cordance with the National 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 connections to a building electrical system can allow 
electrical current from the generator to backfeed into the utility 
lines. Such backfeed may electrocute utility company workers or 
others who contact the lines during a power outage, and the gen-
erator may explode, burn, or cause fires when utility power is re-
stored.   
 
Ground System 
STANLEY portable generators have a system ground that connects gen-
erator frame components to the ground terminals in the AC output re-
ceptacles. The system ground is connected to the AC neutral wire.  
 
Special Requirements 
There may be Federal or State Occupational Safety and Health Admini-
stration (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 having jurisdiction.  
 
This generator does not meet US Coast Guard regulation 33 CFR-183 
and should not be used on marine applications. 
 
CARBON MONOXIDE GAS 
Exhaust contains poisonous carbon monoxide, a colorless and 
odorless gas. Breathing exhaust can cause loss of consciousness 
and may lead to death. To keep exhaust gas from accumulating, 
use in an area with adequate ventilation.  DO NOT use this genera-
tor 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. 
Electocution hazard - Electricity can cause DEATH or SERIOUS 
INJURY. 
•  Do not operate the generator in standing water. 
•  This product is not safe to operate when partially 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 be-
fore each use. Grounding regulations vary by location, consult a 
qualified local electrician for proper grounding instructions. 
•  Power cords and electrical equipment pose a risk of shock and 
electrocution, especially if they are operated in wet conditions. 
Inspect all equipment prior to every use and use only as directed 
by the manufacturer.  
•  Use a cord with GFCI protection when using the power outdoors 
or when moisture is present.  
•  Generators vibrate in normal use. During and after the use of the 
generator, inspect the generator as well as extension cords and 
power supply cords connected to it for damage resulting from 
vibration. Have damaged items repaired or replaced as neces-
sary. Do not use plugs or cords that show signs of damage such 
as broken or cracked insulation or damaged blades. 
 
NEVER START OR STOP THE ENGINE WITH DEVICES CONNECTED 
TO THE GENERATOR. 
WARNING 
WARNINGS 
DANGER 
DANGER 
WARNING