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1.2
OPERATION AND MAINTENANCE
It is the operator's responsibility to perform all safe-
ty checks; to make sure that all maintenance for safe
operation is performed promptly; and to have the
equipment checked by an Authorized Dealer periodi-
cally. We strongly recommend that the operator read
this Owner's Manual and thoroughly understand all
instructions before using this equipment.
It is the owner/operator's responsibility for the fol-
lowing:
• Perform all safety checks.
• For safe operation, promptly perform all mainte-
nance.
• Have equipment checked periodically.
1.3
SAFETY
Before attempting to use the generator set, carefully
read GENERAL SAFETY RULES inside the cover of
this Manual. Comply strictly with these RULES to
prevent accidents and damage to equipment and/or
property. We suggest that copying and posting GEN-
ERAL SAFETY RULES in potential hazard areas.
Stress safety to all operators and potential operators
of this equipment.
1.4
GENERATOR APPLICABILITY
This generator has been designed and manufactured
for supplying electrical power. You should not modify
the generator or use it for any application other than
for what it was designed. If there are any questions
pertaining to its application, write or call the factory.
Do not use the unit until a competent authority has
advised you.
1.5
SPECIFICATIONS
Engine
Type ........................................................Generac GT 990
Rated HP ..................................................30 at 3600 RPM
Displacement ..........................................................992 cc
Cylinder Block ..............Aluminum With Cast Iron Sleeves
Cooling Method ................................................Air Cooled
Type of Governor ........................Mechanical Fixed Speed
Air Cleaner ............Paper Element with Foam Pre-Cleaner
Starter ......................................................12V DC Electric
Ignition System ............Solid State with Flywheel Magneto
Spark Plug Gap ................................0.030 Inch (0.8 mm)
Recommended Spark Plugs ................Champion RC12YC
Oil Sump Capacity ......................................1.5 US Quarts
Recommended Oil ....................................5W-30 Synthetic
Generac APS 6.0 DC Auxiliary Power System
Fram Autolite 65
Section 1 — General Information
Generator
Rated kW ......................................................................6.0
Output Voltage......................................27.2V DC Nominal
Output Current ..........................................220A Full Load
Stator ..................................................6 Phase - Rectified
Rotor RPM ................................................................3600
Engine RPM ..............................................................2700
Weight ..................................................................550 lbs.
Length ................................................................1355 mm
Width....................................................................980 mm
Height ..................................................................730 mm
1.6
FUEL SYSTEM
The unit has been designed to be mounted above a
propane enclosure. A dividing plate has been sup-
plied to be placed under the unit to separate the gen-
erator from the propane tank. During installation it is
important that this dividing plate be positioned
beneath the generator and bolted into place.
The fuel supply line has been supplied with a bulk-
head fitting which should be attached to the dividing
plate with the locking nut provided (Figure 1.1).
Figure 1.1 — Propane Tank Connection
Once installed the bulkhead fitting will provide a
3/4"-16, 37° JIC fitting to which the propane tank can
be connected. The fuel pressure to the unit must be
regulated to 11-14" WC for the unit to perform as
designed.
With LP gas, use only the vapor withdraw type sys-
tem. This type of system uses the vapor formed above
the liquid fuel in the storage tank.
The engine has been fitted with a carburetion system
which meets the specifications of the 1997 California
Air Resources Board for tamer proof dual fuel sys-
tems. The unit will run on natural gas or propane fuel
and has been factory set to run on LP gas. Should the
primary fuel need to be changed to natural gas, then
the fuel system needs to be reconfigured (Figure 1.2
on page 6).
Generac
®
Power Systems, Inc.
5
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