23
C
Suction gauge Sign of clogging
CHK
7. MAINTENANCE
WARNING
Since the desoldering tool can reach a very high temperature, please work carefully.
Except when cleaning the nozzle and heating element, ALWAYS turn the power switch
OFF and disconnect the power plug before performing any maintenance procedure.
Properly maintained, the HAKKO FR-400 desoldering tool should provide years of good
service. Efficient desoldering depends upon the temperature, Solder, Flux selection,
and proper routine maintenance. Perform the following service procedures as dictated
by the conditions of the station's usage.
During suction, the gauge indicating suction force
is shown at the bottom of the screen.
If "CHK" appears on the display, check the nozzle
and heater for restrictions.
If the nozzle or heater are clogged, clean or replace
them.
Replacing the filter pipe
Replace the filter pipe as shown following
steps A to C. During operation, the filter
pipe is very hot. Wait until the filter pipe is
cool before replacing the filter or cleaning.
We recommend keeping a second filter pipe
containing new filters handy, and replacing
the installed filter pipe with this secondary
filter pipe.
B. Automatically
goes back
A. Lower the
lock knob
C. Replace the entire filter pipe with
a secondary filter pipe.
CAUTION
The section from the heating element
to the filter pipe is provided with pipes
through which melted solder passes,
so it may become very hot. Be very
careful when handling this section.
CAUTION: HOT AREA
Release Knob
24
Use the proper size cleaning
pin or cleaning drill for the
nozzle diameter.
Solder plating part
The diameter of the
nozzle has expanded
due to erosion.
The solder plating has come off.
The nozzle hole has eroded.
Cleaning with the nozzle cleaning pin
Cleaning with the cleaning drill
●
Before cleaning
●
After cleaning
The cleaning pin passes
completely through the
hole.
Insert the bit while turning it
clockwise.
Pull the drill bit out straight
without turning it.
Nozzle Maintenance
1. Inspect and clean the nozzle
Turn the power switch ON and let the
nozzle heat up.
● Clean out the hole of the nozzle with the
nozzle cleaning pin.
● If the cleaning pin does not pass through the
hole in the nozzle, clean with the cleaning
drill.
● Check the condition of the solder plating on
the nozzle tip.
● Check visually if the nozzle was eroded.
CAUTION
The handpiece may be extremely hot. During maintenance, please work carefully.
The cleaning pin will not pass through the
nozzle until the solder inside the nozzle is
completely melted.
CAUTION
CAUTION
・If the cleaning drill is forced into the nozzle, the drill bit
could break or be damaged.
・Please use the proper size cleaning pin or cleaning drill
for the nozzle diameter.
CAUTION
・Since erosion cannot be checked visually,
exchange the nozzle if the level of
workability drops.
・The inside and surface of the nozzle hole
is covered in special plating, but erosion
will occur if the nozzle is exposed to high
temperature solders for long periods of
time, disabling it from maintaining normal
temperatures.
* If the nozzle is still in a good condition, put some fresh solder on the nozzle tip to
protect solder plated area from oxidation.
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