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Replace the filter as needed.
Check the cover gasket, and if damaged, replace it.
Clean the magnet
and cover thoroughly.
To remove the plunger, first remove the spring retainer
(6) from the
plunger
tube
(12).
Then
remove
the washer
(7),
O-ring seal
(8),
valve (9), plunger spring (10) and plunger (11) from inside the tube.
Wash these parts in clean diesel oil and remove the oil and other con-
taminants using compressed air.
CAUTION:
THE TUBE (12) HAS VERY SMALL WALL THICKNESS.
BE CAREFUL NOT
TO
DEFORM THE TUBE DURING REMOVAL OF THE PLUNGER AND THE RELATED
PARTS.
CAREFULLY
HANDLE
THE
PLUNGER TO
PREVENT
IT FROM BEING
DENTED OR
OTHERWISE DAMAGED.
Assembling
(1)
To assemble, install the plunger, plunger spring, valve, O-ring
and
washer
in
that
order,
and
finally
secure
them
with
the
retainer so that they will not come out.
(2)
Install the filter element, and then the magnet and gasket in the
base cover and tighten the cover with a 17 mm wrench to the ends
of the slotted stop.
Servicing and Checking the Electric Fuel Pump
(1)
Changing the Filter
After the first 50 hours of operation and thereafter every 200 hours,
remove the lower cap of the pump using a 17 mm wrench and replace the
filter element.
(2)
Checking the Electric Fuel Pump Operation
Turn on the ignition switch (generator - preheat).
The pump should
produce a clicking sound.
If the pump does not produce any operating
sound, check with a DC voltmeter to determine that 12 volts is being
supplied to the pump.
If 12 volts is being supplied to the pump and
the pump still does not make any operating sound, replace the fuel
pump assembly.
If 12 volts is not present at the pump, check the unit
circuit breaker, electrical connections and switch.
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