37
Remove the element cover assembly
and the nozzle with the provided
wrench.
Heating
Element
Element cover
Nozzle
Nut
The element cover
assembly is held to
the nozzle changing
tool by pressing this
part from both sides.
(The nozzle is not
held to the nozzle
changing tool. Be
careful when removing them.）
2. Disassemble the heating element.
CAUTION
The heating element is
very hot during operation.
●
When the filter pipe is cool to the touch, push down on the release knob at the back
of the handpiece and remove the filter pipe.
4. Replace the filters.
●
Turn the power switch OFF.
●
Examine the seals (front and filter holders) at each end of the filter pipe.
Replace : Stiff and/or cracked.
●
Examine the Pre-filter: Remove solder adhering to the waste collector.
●
Examine the ceramic paper filter (L).
Replace : Ceramic paper filter (L) is showing signs of stains from flux, is stiff,
or contains any solder.
CAUTION
The filter pipe is very hot.
Front holder
Filter holder
Ceramic paper
filter (L)
FRONT
Pre-filter
3. Clean out the tube in the heating
element with the provided cleaning
pin.
●
Turn the power off after cleaning.
Scrape away all oxidation from the tube in the heating
element until the cleaning pin passes cleanly through
the tube.
CAUTION
・
Be sure the solder in the tube in the heating element is completely heated, before
cleaning the tube.
・
If the cleaning pin does not pass through the tube in the heating element, replace
the heating element.
Summary of Contents for FR-702
Page 71: ...70 MEMO...
