Product Manual

General Information
Owner’s Manual for Stationary Generators 9
Reconfiguring the Fuel System
While some models are created fuel specific for either
Natural gas (NG) or Liquid Propane vapor (LPV) and are
not fuel convertible, others are configured at the factory
for NG, but are field convertible to LPV. Units fitted with a
dual fuel carburetion system are generally configured for
the selected fuel source during installation.
To reconfigure the fuel system, change the jet in the
d
e
mand regulator, and then navigate to the appropriate
menu to assign the new fuel type. Before proceeding, be
aware that the fuel conversion software is password
protected.
NOTE: Gener
ac recommends that fuel conversion be
done by an IASD or a qualified, competent installation
contractor or electrician who is familiar with applicable
codes, standards, and regulations.
Fuel Conversion Procedure from NG to LPV
1. Turn off the main gas supply.
2. Remove battery negative cable (black) from battery
n
egative (-) terminal.
3. Remove carburetor fuel hose from outlet port. See
Figu
re 2-3
4. Remove screw at front of power wire connector
a
nd pull connector from fuel solenoid.
5. Expand spring clamp on fuel enrichment hose and
r
emove from hose barb.
NOTE: On 5
.4L (48 kW) units, remove two screws (with
flat washers, lock washers and hex nuts) to release fuel
inlet flange from frame rail. This will provide adequate
access to the regulator for jet conversion.
A
B
C
D
E
F
G
H
I
009674
Figure 2-3. Demand Regulator Assembly
A. Carburetor Fuel Hose F. Jet Keeper Port
B. Solenoid Body G. Outlet Port
C. Connector Screw H. Fuel Jet
D. Spring Clamp I. Black Pipe Assembly
E. Fuel Enrichment Hose
6. Remove black pipe assembly from outlet port. If
clearance is not sufficient, first remove fuel
solenoid assembly.
7. Rotate N
G fuel jet counterclockwise to remove
from the outlet port.
NOTE: Both the NG and LP fuel jets are slotted so that
they
may be removed and installed using an ordinary flat
blade screwdriver.
8. Rotate L
P fuel jet counterclockwise to remove from
the jet keeper port.
NOTE: The orifice size is stamped on each jet. The jet
wit
h the larger orifice is used for running on NG.
9. Rotate L
P fuel jet clockwise to install in the outlet
port.
10. Rotate N
G fuel jet clockwise to install in the jet
keeper port.
11. Install fuel solenoid assembly, if removed.