Hakko 474 User Manual
Desoldering Tool
Instruction Manual
Thank you for purchasing the HAKKO 474 Desoldering
Tool.
Please read the manual before using the HAKKO 474.
Store the manual in a safe, easily accessible place for
future reference.
CAUTION :
Remove the pump securing screws (M4x25 marked red)
from the bottom of the station.
Failure to do so may result in serious problems.
Table of Contents
Packing List··················································
Precautions··················································
Part Names
Operation
Maintenance
Replacement Parts
Parts List
Specifications, Wiring·······························
(Desoldering Gun)···················
(Station)···································
(Preparation Assembly and Connection)
(Desoldering)························
(Cleaning during Operation)
(Problems during Desoldering
(
Post-operation Maintenance
(Troubleshooting Guide)········
(Desoldering Gun)············
(Station)····························
(Replacing Heating Element)
(Station)···························
(Desoldering Gun)·················
····
······
5·6
7·8
········
)
)···
12~14
15~16
17~18
19~20
1
2
3
4
9
10
11
21
22
Packing List
Please check to make sure that all the items listed below
are included in the HAKKO 474 package.
Station····················································
Desoldering Gun····································
Iron Holder Base····································
Spring Iron Holder··································
Cleaning Sponge····································
Filter Pipe···············································
1
Ceramic Paper Filter (S)·····································
1
Ceramic Paper Filter (L)·····································
1
Spring Filter·······················································
1
Cleaning Pin (for Ø1.0mm [0.04 in] nozzle)········
1
Cleaning Pin (for Heating Element)····················
1
Cleaning Pin Holder············································
Cleaning Drill (for Ø1.0mm [0.04 in] nozzle)·······
SIlicone Grease··················································
Spanner······························································
Instruction Manual··············································
SpannerStation
Iron Holder Base Spring Iron Holder Cleaning Sponge
2
4
3
1
1
1
1
1
1
1
Filter Pipe
Cleaning Pin for Ø1.0 mm (0.04 in) Nozzle
Cleaning Drill for Ø1.0 mm (0.04 in) Nozzle
1
Ceramic Paper Filter (S)
Ceramic Paper Filter (L)
Cleaning Pin for Heating Element
Silicone Grease Desoldering Gun
Spring Filter
Cleaning Pin Holder
Precautions
In this instruction manual, "WARNING" and "CAUTION" are defined as follows.
WARNING
WARNING: Misuse may potentially cause death of, or serious injury to the user.
CAUTION : Misuse may potentially cause injury to the user or physical damage to the
objects involved.
For your own safety, be sure to comply with these precautions.
CAUTION
Remove the pump securing screws (M4 x 25 marked red)
from the bottom of the station.
Failure to do so may result in serious problems.
When the power is on, the nozzle temperature is between
380˚C/716˚F and 480˚C/896˚F.
Since mishandling may lead to burns or fire, be sure to comply with
the following precautions.
·Do not touch the metallic parts near the nozzle, nearby plastic parts and
the spring iron holder .
·Do not use the product near flammable items.
·Advise other people in the work area that the unit can reach a very high
temperature and should be considered potentially dangerous.
·Turn the power off while taking breaks and when finished using the unit.
·Before replacing parts or storing the unit, turn the power off and allow the
unit to cool to room temperature.
To prevent damage to the unit and ensure a safe working
environment, be sure to comply with the following precautions.
·Do not use the unit for applications other than desoldering.
·Do not rap the desoldering gun against the work bench to shake off
residual solder, or otherwise subject the iron to severe shocks.
·Do not modify the unit.
·Use only genuine HAKKO replacement parts.
·Do not wet the unit or use the unit when your hands are wet.
·Set the ceramic paper filter (S) for the filter retainer (station), and the
ceramic paper filter (L) for the filter pipe (gun).
·Maintain the desoldering gun and the station.
·While using the unit, don't do anything which may cause bodily harm
or physical damage.
2
(Refer to p.19,20,21 for part nos.)Part Names
Desoldering Gun
Nozzle
Transmits heat for melting solder.
Entrance for melted solder.
Expendable part
Heating Element
Inside requires cleaning.
Trigger
Squeeze to start absorption.
Do not pull the trigger before
fully heating the nozzle.
Filter Pipe
Set the ceramic paper filter (L) (No. A1033).
Contains melted solder and flux using filters.
Filter are expendable parts.
Back Holder
Assembly
Secures the filter
pipe.
Release Knob
Push down to
remove the filter
pipe.
Indicator
Indicates when
nozzle and heating
element need
cleaning and when
filters need replacing.
(refer to p.9)
Hose
Connects to the vacuum outlet cap (station).
Cord Assembly
Connects to the receptacle (station).
3
Station
Temperature Control Knob
Provides nozzle temperature
control. (refer to p.7)
Temperature Control Set
Screw Clamp
Prevents the temperature
control knob from being reset.
(refer to p.7)
Power Lamp
Lights up when the
power switch is
turned to ON.
Power Switch
When turned to ON,
the heating element
starts to heat up.
CAL (Calibration)
Used for calibrating
the temperature
after replacing the
Heating Element.
Vacuum Outlet Cap
Set the ceramic paper filter (S)
(No, A1009).
Connects with the hose, Filter
inside vacuum outlet cap is
expendable.
Receptacle
Connector for the cord
assembly.
Fuse Holder
·100,110V unit
contain 125V-2A fuse.
·120V unit contains
250V-2A (U) fuse.
·220,230V unit contain
250V-1A fuse.
·Australian 240V unit
contains 250V-1A S
fuse.
Power Cord
4
Operation
Preparation-Assembly and Connection
Assemble the HAKKO 474 on a flat surface.
Remove the pump securing
screws (M 4 x 25 marked red)
from the bottom of the station.
Assemble the iron holder.
·Set the spring iron holder and
cleaning pin holder in the iron
holder base.
·Dampen the cleaning sponge
with water and then squeeze
it dry.
Cleaning Sponge
Spring Iron Holder
(No. B1094)
Tube (red)
Cleaning Pin Holder
(No. B1095)
Securely insert the
cleaning pin holder.
CAUTION
The sponge is compressed.
It will swell when moistened with water.
Be sure to dampen the sponge with
water before use.
Be sure to remove the round portion
of the sponge.
Insert the desoldering gun
and cleaning pins.
·Fully insert the desoldering
gun into the spring iron holder.
CAUTION
The spring iron holder becomes
extremely hot during operation of the
desoldering gun. Do not touch the
spring iron holder during and
immediately after using the gun.
Iron Holder Base
5
Connections
CAUTION
Be sure to turn off the power switch
before connecting or disconnecting
the cord assembly and the power
plug. Failure to do so may damage
the P.W.B.
·Connect the cord assembly to
the receptacle (marked "IRON").
·Connect the hose to the
vacuum outlet cap (marked
"VACUUM").
Insert the cord
assembly by keying
the plug to the key
on the receptacle.
Secure the plug by
turning it clockwise.
Power switch
·Confirm that the power switch
is set in the OFF position, then
connect the power plug to the
power source.
CAUTION
The entire unit is constructed of
conductive materials. Always ground
the unit.
·Turn the power switch to ON.
The power lamp should light
up.
·The nozzle begins to heat up
as soon as the power switch
is turned to ON.
After turning the power
switch to ON, wait 3
minutes before beginning
desoldering operations.
The power lamp
lights up.
The nozzle heats up.
CAUTION :
The desoldering gun must be placed in the iron
holder when not in use.
Fully insert the hose
into the vacuum
outlet cap.
The power lamp doesn't
light up.
1. Is the power cord properly
connected?
2. Is the fuse blown?
The nozzle doesn't heat up.
1. Is the cord assembly
properly connected?
2. Is the heating element
broken?
6
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