Briggs & Stratton 040298, Руководство по обслуживанию и устранению неисправностей

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2
5. Remove the pipe plug in the regulator test port ( A )
and install Briggs & Stratton Vacuum Tester #19495
(Figure 25).
Figure 25
6. Ensure the fuel supply valves are ON .
7. Using a jumper wire, connect 12VDC to Wire #14 at
the fuel solenoid. Fuel pressure should measure 11-
14 in. wc (LPG) or 5-7 in. wc (NG) .
Voltage can be supplied to the solenoid by cranking the
engine. However, if this method is used, fuel pressure
readings will be lower than the fuel inlet specification,
resulting in an inaccurate reading.
• If no fuel pressure is measured, replace the fuel
solenoid.
• If fuel pressure is measured within specifications,
the solenoid is good. Proceed to TEST 6- Check
Fuel Regulator.
8. Set meter to read DC Volts.
9. Remove the screws to gain access to the control
panel.
10. Connect positive (+) meter lead to Pin #4, Wire #14.
Connect negative (-) meter lead to Pin #2, Wire #0
(
A , Figure 26).
Figure 26
11. Measure DC volts while cranking.
• If no voltage is measured at the control panel,
replace the control panel.
• If voltage is measured at the control panel, but
not at the solenoid, repair or replace the wiring
between the control panel board and the fuel
solenoid (Wire #14).
TEST 6 - Check Fuel Regulator
The fuel regulator has two atmospheric vent holes ( A , Figure
27) that balance diaphragm pressures.
Figure 27
1. Install a 1/8 NPT barbed fitting into one hole. Attach a
2 ft. length of hose to the fitting.
2. Plug the other vent hole, then gently blow into the
hose.
When the fuel solenoid is energized (open) with battery
voltage, this gentle pressure will allow fuel to pass through
the regulator and will be indicated on the manometer as a
decrease in pressure.
• If no fuel flow is detected, replace the fuel
regulator.
• If fuel flow is detected, proceed to TEST 6 - Check
Ignition Spark.
Not
for
Reproduction