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Generac Generator QT07039GVSN

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STANDBY GENERATOR
OWNER'S MANUAL
This manual should remain with the unit.
A new standard of reliability
Serial Number QT
3.9L
70kW
Models
Cover003 Rev. 0 08/05 Part No. 0F3443
Standby Generator Sets
Table of Contents
SECTION PAGE
SAFETY RULES ................................................ 1-1
INTRODUCTION .....................................................1-3
Read this Manual Thoroughly ...................................1-3
Operation and Maintenance ......................................1-3
How to Obtain Service ..............................................1-3
IDENTIFICATION RECORD .....................................2-1
Data Label ................................................................2-1
EQUIPMENT DESCRIPTION ...................................3-1
Equipment Description ................................................3-1
Engine Oil Requirements .............................................3-1
Coolant Recommendations...........................................3-1
ENGINE PROTECTIVE DEVICES ............................4-1
High Coolant Temperature Switch ............................4-1
Low Coolant Level Sensor .........................................4-1
Low Oil Pressure Switch ...........................................4-1
Overcrank Shutdown ................................................4-1
Overspeed Shutdown ................................................4-1
RPM Sensor Loss Shutdown .....................................4-1
DC Fuse ....................................................................4-1
FUEL SYSTEMS .....................................................5-1
Fuel Requirements ....................................................5-1
Natural Gas Fuel System ..........................................5-1
Propane Vapor Withdrawal Fuel System....................5-1
LP Fuel System .........................................................5-1
SPECIFICATIONS ...................................................6-1
Generator .................................................................6-1
Engine.......................................................................6-1
Cooling System .........................................................6-1
Fuel System ..............................................................6-1
Electrical System ......................................................6-1
Cold Weather Kit .......................................................6-2
GENERAL INFORMATION .......................................7-1
Generator AC Lead Connections ..................................7-1
Four-lead, Single-phase Stator ..................................7-1
Alternator Power Winding Connections ........................7-1
3-phase Alternators ..................................................7-1
INSTALLATION .......................................................8-1
Installation ...................................................................8-1
Preparation Before Start-up .........................................8-1
Prior to Initial Start-up .............................................8-1
Initial Inspection for QT Genset Start-up .....................8-1
Start-up Inspection ...................................................8-2
OPERATION ...........................................................9-1
Generator Control and Operation ................................9-1
Operating Unit with Manual Transfer Switch ...............9-1
Engine Start-up and Transfer ...................................9-1
Retransfer and Shutdown .........................................9-1
Operating Unit with Automatic Transfer Switch ...........9-1
MAINTENANCE .....................................................10-1
Maintenance Performed by Authorized
Service Facilities .....................................................10-1
Cooling System ..........................................................10-1
Checking Fluid Levels ................................................10-1
Check Engine Oil ....................................................10-1
Battery Fluid ...........................................................10-1
Engine Coolant .......................................................10-1
Maintenance Owner/Operator Can Perform ................10-2
Check Engine Oil Level ...........................................10-2
Check Battery .........................................................10-2
Exercise System ......................................................10-2
Inspect Cooling System ...........................................10-2
Check Engine Coolant Level....................................10-2
Perform Visual Inspection .......................................10-2
Inspect Exhaust System ..........................................10-2
Check Fan Belt ........................................................10-2
Inspect Engine Governor ........................................10-2
Changing Engine Oil ...............................................10-2
Changing the Engine Air Cleaner ............................10-3
Spark Plugs ............................................................10-3
Coolant Change .......................................................10-3
Miscellaneous Maintenance ........................................10-3
Cleaning the Generator ...........................................10-3
Battery ....................................................................10-3
Battery Maintenance ...............................................10-4
Battery Replacement ...............................................10-4
SERVICE SCHEDULE ...........................................11-1
20 kW - 40 kW Standby Gas Engine
Driven Generator Sets ............................................11-1
TROUBLESHOOTING ...........................................12-1
Troubleshooting Guide ...............................................12-1
NOTES
EXPLODED VIEWS & PARTS LISTS
WIRING DIAGRAMS & SCHEMATICS
WARRANTY
Content002 Rev. 0 08/05
Study these SAFETY RULES carefully before install-
ing, operating or servicing this equipment. Become
familiar with this Owner’s 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.
The manufacturer cannot anticipate every possible
circumstance that might involve a hazard. The warn-
ings in this manual, and on tags and decals affixed
to the unit are, therefore, not all inclusive. If a pro-
cedure, work method or operating technique is used
that the manufacturer does not specifically recom-
mend, ensure that it is safe for others. Also make
sure the procedure, work method or operating tech-
nique utilized does not render the generator unsafe.
DANGER
Despite the safe design of this generator,
operating this equipment imprudently, neglect-
ing its maintenance or being careless can cause
possible injury or death. Permit only responsible
and capable persons to install, operate or main-
tain 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, the manufacturer recommends
that this equipment be installed, serviced and
repaired by an Authorized Service Dealer or other
competent, qualified electrician or installation tech-
nician who is familiar with applicable codes, stan-
dards and regulations. The operator also must
comply with all such codes, standards and regula-
tions.
Installation, operation, servicing and repair of this
(and related) equipment must always comply with
applicable codes, standards, laws and regulations.
Adhere strictly to local, state and national electri-
cal and building codes. Comply with regulations
the Occupational Safety and Health Administration
(OSHA) has established. Also, ensure that the
generator is installed, operated and serviced in
accordance with the manufacturer’s instructions
and recommendations. Following installation, do
nothing that might render the unit unsafe or in
noncompliance with the aforementioned codes,
standards, laws and regulations.
The engine exhaust fumes contain carbon mon-
oxide gas, which can be DEADLY. This dangerous
gas, if breathed in sufficient concentrations, can
cause unconsciousness or even death. For that
reason, adequate ventilation must be provided.
This should be considered prior to installing the
generator. The unit should be positioned to direct
exhaust gasses safely away from any building
where people, animals, etc., will not be harmed.
Any exhaust stacks that ship loose with the unit
must be installed properly per the manufacturer's
instruction, and in strict compliance with appli-
cable codes and standards.
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 in any room or building hous-
ing the generator to prevent buildup of explosive
gases and to ensure correct generator operation.
Do not alter the installation or permit even partial
blockage of ventilation provisions, as this can seri-
ously affect safe operation of the generator.
Keep the area around the generator clean and
uncluttered. Remove any materials that could
become hazardous.
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 promptly
repair or replace all worn, damaged or defective
parts using only factory-approved parts.
SAVE THESE INSTRUCTIONS The manufacturer suggests that these rules for safe
operation be copied and posted in potential hazard areas. Safety should be stressed to all
operators, potential operators, and service and repair technicians for 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:
 
1-1
Standby Generator Sets
Important Safety Instructions
Safety 001 Rev. A 08/07

Produktspecifikationer

Varumärke: Generac
Kategori: Generator
Modell: QT07039GVSN

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