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3. Remove the brass hose fitting from the outlet port
(Port 1) of the demand regulator.
4. Remove pipe plug from Port 2.
5. Install brass hose fitting into Port 2.
6. Install pipe plug into Port 1.
7. Connect carburetor gas hose to brass fitting.
8. Tighten all clamps and plugs.
9. Make sure fuel supply is of the proper pressure
and type for configuration.
10. Reverse the procedure to convert back to natural
gas.
Port 1 is for NG only and Port 2 is for LP vapor
only. No provision for dual fuel has been made.
DANGER
Serious injury or damage may occur if not con-
figured properly. Please consult an Authorized
Service Dealer with any questions.
1.13 TORQUE SPECIFICATIONS
Tighten the bolts from the middle out, in a criss-
cross pattern.
Cylinder Head .....................................50 ft.lb./105 ft.lb./105 ft.lb.
Intake Manifold .................................... 48 in.lb./84 in.lb./84 in.lb.
Exhaust Manifold ............................................................. 25 ft.lb.
1.14 ENGINE OIL RECOMMENDATIONS
The unit has been filled with 15W-40 engine oil at
the factory. Use a high-quality detergent oil classified
"For Service CC, SD, SE, SF ." Detergent oils keep the
engine cleaner and reduce carbon deposits. Use oil
having the following SAE viscosity rating, based on
the ambient temperature range anticipated before the
next oil change:
Temperature
Above 80° F (27° C)
32° to 80° F (-1° to 27° C)
Below 32° F (0° C)
5W-30 full synthetic oil is highly recommended
in any element with temperatures above 90° F or
below 30° F .
Any attempt to crank or start the engine before
it has been properly serviced with the recom-
mended oil may result in an engine failure.
8
Section 2 — Installation
40kW Liquid-cooled Generators
NOTE:
Oil Grade (Recommended)
SAE 15W-40
SAE 15W-40
SAE 15W-40
NOTE:
1.15 COOLANT RECOMMENDATIONS
Use a mixture of half low silicate ethylene glycol base
anti-freeze and half de-ionized water. Cooling system
capacity is about 20 U.S. quarts (19.3 liters). Use only
de-ionized water and only low silicate anti-freeze. If
desired, add a high quality rust inhibitor to the rec-
ommended coolant mixture. When adding coolant,
always add the recommended 50-50 mixture.
Do not use any chromate base rust inhibitor
with ethylene glycol base anti-freeze or chro-
miumhydroxide ("green slime") forms and will
cause overheating. Engines that have been oper-
ated with a chromate base rust inhibitor must
be chemically cleaned before adding ethylene
glycol base anti-freeze. Using any high silicate
anti-freeze boosters or additives will also cause
overheating. It is also recommend that any solu-
ble oil inhibitor is NOT USED for this equipment.
1.16 BEFORE INSTALLATION
Before installing this equipment, check the ratings
of both the generator and the transfer switch. Read
"Emergency Isolation Method" and "Total Circuit
Isolation Method".
The generator's rated wattage/amperage capacity
must be adequate to handle all electrical loads that
the unit will power. The critical (essential) loads may
need to be grouped together and wired into a sepa-
rate "emergency" distribution panel.
This generator can be installed in conjunction with
an engineered "GTS" type transfer switch, if neces-
sary.
The standard transfer switch has no sensing or con-
trolling circuit boards. Instead, the generator control
console houses a "Printed Circuit Board Assembly",
which controls all phases of operation, including
engine start up and load transfer.
2.1
STANDBY GENERATOR
INSTALLATION
DANGER
Connecting this generator to an electrical system
normally supplied by an electric utility shall be
by means of a transfer switch, so as to isolate
the electric system from the utility distribution
system when the generator is operating. Failure
to isolate the electric system by these means
will result in damage to the generator and may
also result in injury or death to utility workers
due to backfeed of electrical energy.
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