Winco PSS6HEE - Manual (Page 8)

8201-00 Page 6 60707-116
Remember that whichever fuel delivery system or type
of vapor fuel used, the fuel pressure at the fuel solenoid
valve installed on the engine generator must be
between 4 and 6 oz. (7-11 inches of water column).
Any lower pressure and the unit will starve for fuel
under load. Any higher and the unit will ‘flood’ when
attempting to start.
LP TANK SIZING
Once above the minimum acceptable size, the size of
LP tank used will generally depend on how long you
want the unit to run without refilling. The tank sizes
shown below are the smallest recommended tank sizes
based on the outside temperature. Keep in mind the
colder it gets the slower L.P. will vaporize. This is the
reason for the larger tanks at low temperature.
Minimum sizing is not based on running time.
Temp 60 deg f. 30 deg f. 0 deg f. -20 deg f.
PSS6HE 40 gal 50 gal 125 gal 350 gal
CHANGING FUEL TYPES
These engine generator sets are designed to run on
three different fuels; gasoline, natural gas or LP vapor.
They may be easily changed from one fuel to another.
FROM GASOLINE TO LP/NG
1. With the engine running, turn off the gasoline fuel
valve.
2. Run the engine until it runs out of fuel.
3. Remove the plastic plug from the fuel solenoid
valve.
4. Install locally approved flexible fuel line.
5. Connect the LP/NG vapor fuel line.
6. Units have two different hose fittings on the top of
the demand requlator. One is for LP and one is for
Natural Gas. Make sure the hose is attached to the
proper fitting.
7. Turn on the vapor fuel.
8. Start the engine.
9. Apply the load to the generator.
FROM LP/NG TO GASOLINE
1. With the engine running turn off the LP/NG fuel
supply.
2. Run the engine until it runs out of fuel.
3. Remove the flexible fuel line from the fuel solenoid
valve.
4. Reinstall the plastic plug in the fuel valve.
5. Check to be sure the gasoline fuel valve is off.
6. Fill the gasoline fuel tank.
7. Turn on the gasoline fuel valve.
8. Start the engine.
9. No adjustment should be necessary as the engine
has been tested on gasoline.
Wheel Kit
The wheel kit is shipped loose and must be
assembled. The wheel kit comes with instructions and
parts list. After installing the wheel kit, file the
instructions and parts list in the back of this manual for
future reference.
INITIAL START UP
Use the following checklist to verify the correct
preparation of the engine generator before starting.
Before Starting always Check:
1.
Engine oil, fill as required with correct grade and
quantity.
2. Fuel level, fill as required with clean fresh fuel.
3. Visually for loose parts.
STARTING
NOTICE: TRI-FUEL STARTING
Tri-Fuel generators operating on vapor fuel, (either
LP or NG) must be started using the electric start system
provided. You cannot hand crank the unit fast enough to
develop the proper vacuum to make the vapor fuel
system work. In addition the electric fuel solenoid valve
requires a battery to operate. For starting the black
button on the fuel control relay panel must be depressed.
WHEN USING VAPOR FUEL NEVER USE THE
CHOKE. Use of the choke will prevent the air and fuel
from properly mixing.
The throttle control on these generators is preset and
locked to operate at 3600 RPM (nominal) with no load
speed set at 3750 RPM. Only a trained service techni-
cian should be allowed to adjust this speed setting. See
“Operating Speed” section for additional information.
NOTICE: ENGINE START LOCKOUT
This unit will not start if it is low on oil. The lubricating oil
level must be at the full mark before the engine will start.
MANUAL STARTING - (For Gasoline Only)
Refer to the engine manual for additional starting,
operating, and stopping instructions.
1. Turn on the GASOLINE supply.
2. Move the choke to the full "on" position. A warm
engine will require less choking than a cold engine.
3. Grasp starter grip and pull slowly until starter
engages, then pull cord rapidly to overcome
compression, prevent kickback and start the engine.
Repeat if necessary.
4. When the engine starts, open the choke gradually.
5. The engine should promptly come up to operating
speed.