Toyotomi Toyoset NS-2800, Service Manual, Page: 27 / 47

27
4. Unscrew the
“
F
”
cap nut (on the
suction side of the fuel pump) and
that on the discharge side of the
pump to disconnect their respective
pipe. Sufficient care must be taken
not to contaminate these connection
areas with dust.
5. The fuel pump is fixed on the spring
plate with one screw at one point.
Take pump apart from the heater
unit by using a screwdriver. Remove two
terminals from the fuel pump.
6. Reassemble the parts.
6-3. Troubleshooting Guide III
Note 6: Igniter in wrong connection
The proper geometry of the D-cut in
the igniter is shown in the right hand
figure. If the D-cut is installed in
reverse, the heater coil is located too
far away from the ignition point to be
ignited. The igniter terminal
⑱
is
applied with approximately DC 11.5V
at the time of ignition.
Note 7: If the power cord is extended excessively, the heater may experience a voltage
drop which may often cause ignition failure. If this trouble is caused, shorten
the power cord.
Note: If the heater has failed ignition repeatedly, the burner must have a large
amount of fuel left. Before lighting the heater, remove the fuel from the
burner through the igniter installing hole, in accordance with the
“
How To
Replace Igniter
”
on page 30.