31
10. TROUBLE SHOOTING GUIDE
NOTE :
When repairs are needed, please send both the handpiece and the station to
your sales agent.
WARNING
Before checking the inside of the HAKKO FR-400 or replacing parts, be sure to disconnect the power
plug. Failure to do so may result in electric shock.
● Display does not turn
on.
● Pump does not
operate.
● Solder is not being
absorbed.
● The nozzle does not
heat up.
CHECK :
ACTION :
CHECK :
ACTION :
CHECK :
ACTION :
CHECK :
ACTION :
CHECK :
ACTION :
CHECK :
ACTION :
CHECK :
ACTION :
CHECK :
ACTION :
CHECK :
ACTION :
CHECK :
ACTION :
Is the power supply cable or connection plug disconnected?
Connect it tightly.
Is the fuse blown?
Replace the fuse. If the fuse blows again,
please send the entire product back to us for repair.
Is the power supply cable or connection plug disconnected?
Connect it tightly.
Is the nozzle or hole in the heating element clogged?
Clean it.
Is the filter pipe full of solder?
Clean it.
Is the ceramic paper filter hardened?
Replace it with a new one.
Is there a vacuum leak?
Check the connections and filter pipe seals and
replace any worn parts.
Is the heater tube or nozzle clogged?
Clean it.
Is the desoldering gun cord assembly properly connected?
Connect it tightly.
Is the heating element damaged?
Replace it with a new one.
11. PARTS LIST
32
①
①
Pump assembly
②
②
③
③
④
⑤
⑤
⑥
⑦
⑦
⑧
⑧
⑨
⑨
⑩
⑪
⑪
⑫
⑫
⑬
⑮
⑭
⑯
⑰
⑱
⑲
⑳
21
22
External tooth lock
washer DN3 (3)
Tapping screw
P tight
DN3×8 (5)
Tapping screw
P tight
DN2.6×6 (4)
Binding head screw
M3×6 (4)
Binding head screw
M3×6 (6)
Pan head screw
M4×6 (2)
SEMS screw M4×12 P3 (8)
Countersunk head screw
M4×8 (4)
Countersunk head screw
M4×12 (2)
SEMS screw M3×6 P2 (3)
SEMS screw M3×6 P2
Hexagon socket set screw
M4×6
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