Hakko Electronics 373 User manual

Thank you for purchasing the HAKKO 373 Self Feeder.
Please read this manual carefully before operating the
HAKKO 373. Store the manual in a safe, easily accessible
place for future reference.
CAUTION: You must install the Solder Dia. Adjustment Ring before use.
SELF FEEDER
TABLE OF CONTENTS
Precautions ................................................................. 1
Specifications .............................................................. 1
Names of Parts ........................................................... 2
Setting Up the HAKKO 373 ......................................... 3
Operation .................................................................... 6
Replacement of Parts .................................................. 8
Options & Replacement Parts ..................................... 9
Parts List ................................................................... 11
Troubleshooting Guide .............................................. 13

1
Precautions
CAUTION
Setting up should be done while the soldering iron is cool, or you may get burnt.
Do not force the guide pipe bend or turn as this may result in damage.
Do not operate with tube bending or holding in sharp angle. It may cause to clogging.
Input of switching is no-voltage input. Do not apply voltage to the jack for switch.
Periodically, remove the guide pipe and clean out clogged flux.
Do not force the adjustment screw to adjust the amount of solder return. It may cause to damage.
If the power cord is damaged, it must be replaced by the manufacturer, its service agent or similarly
qualified person in order to avoid personal injury or damage to the unit.
Specifications
Usable Solder
Usable solders are as follows. Some of the parts should be changed according to the diameter of
solder desired to use.
(mm)
(inch)
0.6, 0.65, 0.8, 1.0, 1.2, 1.6
0.024, 0.025, 0.031, 0.039, 0.047, 0.063
Maximum quantity of usable solder is 1 kg (2.2 pounds).
Dia. of
solder
Usable Soldering Iron
Soldering Iron
HAKKO 900M (For HAKKO 926, 927, 928)
HAKKO 900L (For HAKKO 926, 927, 928)
HAKKO 902 (For HAKKO 931)
HAKKO 903 (For HAKKO 939)
HAKKO 904 (For HAKKO 929)
HAKKO DASH
HAKKO MACH-I
HAKKO 907 (For HAKKO 936, 937)
HAKKO 908 (For HAKKO 936, 937)
Remarks
Operationable only with Foot Switch
Specifications
Power Consumption
Motor Rate
6 W
DC 24 V 3.2W
0~7 sec.
4.5~26 mm (0.14~1 in.)/sec.
0~182 mm (0~7.2 in.)
0~5 mm (0~0.2 in.) (Fixed Speed)
107(W) x 110(H) x 215(D)
Approx.1.5 kg/3.3 pounds
Solder Feed Time
Solder Feed Speed
Solder Feed Quantity
Solder Return Quantity
Outer Dimensions
Weight

Names of Parts
Jack for Switch
Feed Speed Control Knob
Feed Time Control Knob
Mode Switch
Power Switch
Release Lever
Securing Screw
Tension Adjustment Knob
Tension Gear Guide Shaft
Adjustment for the amount of solder return
Feed Gear
Supply Nozzle
Solder Bobbin Shaft
Solder Dia. Adjustment Ring
Tension Gear
2

Setting Up the HAKKO 373
1. Install the Solder Dia.
Adjustment Ring
1. Remove the tension gear guide shaft.
2. Attach the solder dia. adjustment ring according to the
diameter of your desired solder and attach the tension
gear guide shaft.
Solder Dia.
Adjustment Ring
Tension Gear Guide Shaft
Tension Gear
2. Setting the Guide Pipe
Asse’y
Set the guide pipe asse’y between the nipple (or nut) and
handle, and secure it. Washer may need depend on the type
of iron. Please refer to the following figure.
3
Setting up should be done while the soldering iron is cool, or you may get burnt.
Do not force the guide pipe bend or turn as this may result in damage.
Do not operate with tube bending or holding in sharp angle. It may cause to clogging.
Guide Pipe Asse’y
Handle
Nut
HAKKO 900, HAKKO DASH SERIES & 907, 908
Handle
Guide Pipe Asse’y
Nipple Wave Washer (No. B2684)
HAKKO 902, 903, 904
Handle
Guide Pipe Asse’y
Nut Ring Washer
HAKKO MACH-I SERIES
(for 918 – No. B2685)
(for 920, 921, 922 – No. B2686)

4
3. Setting the Tube Unit
The tube is double structure. Insert the inside tube into the
hole of the connection, and the outside black tube should
fully cover the screw part of the connection. Be sure that not
to bend the tube.
(a) Attach the Tube to Guide Pipe
Asse’y.
(b) Set the Attachment on the
Handle of Soldering Iron.
NOTE
The Attachment is not necessary if you use HAKKO
MACH-.
i. Position the attachment on the handle of iron. Decide which
outlet of attachment should use for the tube as the tube
can be pulled out from either way of the attachment. Find
the best position where can connect the tube straight to
the pipe. Be careful not to damage the inner wiring if
replace the tube inside of the attachment.
ii. Secure the attachment. Set the attachment on the handle
securely with clips and adhesive tape on backside of the
attachment. Refer to the following figure on the setting
position of the attachment and the guide pipe. Pay attention
on the setting angle of the guide pipe and the attachment.
4. Connect the Feeding
Nozzle
Insert the feeding nozzle into the feeding unit on the top of
the station, and secure it with screw.
NOTE
Securing the screw excessively may break the feeding
nozzle.
5. Connect the Mini-plug Insert the mini-plug branching from the tube unit into the
jack of the station.
NOTE
Connect the mini-plug of foot switch to the station if you
use HAKKO MACH-.
Nozzle
Guide Pipe
Securing Nut for Guide Pipe Connection
Tube Attachment
ClipsGuide Pipe Holder
Setting Up the HAKKO 373

5
Setting Up the HAKKO 373
6. Setting the Solder Set a new solder after pull the old solder out when the old
one left in tube.
(a) Remove the tension gear guide shaft. And attach the
solder dia. adjustment ring according to the diameter of
your desired solder.
(b) Insert the solder bobbin shaft in the solder bobbin and
mount it on rear of the station. Solder should be fed over
the bobbin as the following figure.
(c) Insert the solder from the supply nozzle.
(d) With pressing release lever, put the inserted solder of
approx. 10 mm/0.4 in. into the feeding nozzle through
between tension gears.
(e) Power switch on, and set MODE to MANUAL .
(f) Press the trigger switch, and feed the solder.
7. Changing the Solder
Diameter
Replace the solder dia. adjustment ring, when using the
soldering iron continuously but desire to change the
diameter of solder. The guide pipe asse’y should change
according to the diameter of solder. Refer to the section
“Replacement of Parts”.
(a) Power switch off. Open the release lever and roll back the
left solder to the bobbin.
(b) Remove the tension gear guide shaft, and replace the
solder dia. adjustment ring according to desired solder
dia. Remove the tension gear guide shaft turning with a
spanner or pliers.
(c) Replace the guide pipe asse’y if it’s necessary.
8. Use in Vertical Vertical use is available. Fixing in vertical is as following figure.
46mm 2- 4.2

6
Operation
Solder will be fed by pressing the feed switch (or foot switch).
MODE AUTO MODE
If you press the feed switch, solder will be fed with set time
and speed independently of length of pressing time.
MANUAL MODE
Solder will be fed with set speed during pressing the feed
switch.
Setting for Feeding Time
and Speed
Set the speed before the time. For the setting speed, both
AUTO
& MANUAL are effective, but only
AUTO
is effective
for setting time.
Adjustment for the
Amount of Solder
Return
After feed solder, specific length of solder can be returned.
This solder return function permits use for simple robots.
Amount of solder return is adjustable within 0~13 mm
(0~0.51 in.). Solder should be rolled back if the amount of
solder return is bigger than the amount of solder feed. Please
set the amount of solder return as small as possible. If the
tip of the returning solder reaches to the guide pipe, flux will
easily accumulate at this point. Be sure that it will not happen.
Insert a driver into a adjustment hall on the side of the station.
Turn left for smaller and turn right for bigger amount.
Adjustment of Tension When adjust the tension, be sure that not the gear to be
slipped during feed solder, or do not force to feed solder
slipping gear when solder clog.
Set the tension gear loosely for fine solder ( 0.6mm, 0.8mm/
0.024 in., 0.031 in.). Refer to the following chart.
Solder Dia. 0.6mm
maximum
1.0mm
14mm
1.6mm
10mm

7
Operation
Usage of Iron Holder
If you use HAKKO 926, refer to the following figure to set the
iron holder. (As for the HAKKO 926, the setting is available
only on it’s left.)
• HAKKO 926
• HAKKO 631 Simply replace the iron holder if you use with iron holder
HAKKO 631 for except HAKKO 926.
• HAKKO 907, 908 Place the soldering iron in the iron holder so that the right
side of the guide pipe holder fits to the right side of the iron
receptacle.
When you want to fit it to the left side of the iron receptacle,
remove the securing nut for the guide pipe and the
connection; then reattach them in the opposite side.
Iron Receptacle
Spring Iron Holder
or
Holder Mounting Base
Thumb screw
Set the iron receptacle in the spring iron holder keeping the
iron tip and the guide pipe horizontally.

8
Replacement of Parts
1. When you change the
Solder Diameter
Please replace the parts indicated on the following chart when
you change solder diameter.
Solder Dia.
Adjustment Ring
replace
replace
replace
replace
Changing matter
From the range of 0.6~1.0mm to the range of 0.6~1.0mm
From the range of 1.2~1.6mm to the range of 1.2~1.6mm
From the range of 0.6~1.0mm to the range of 1.2~1.6mm
From the range of 1.2~1.6mm to the range of 0.6~1.0mm
Nozzle
replace
replace
replace
replace
Guide
Pipe
same
same
replace
replace
Tube
Unit
same
same
replace
replace
2. When you change the
Soldering Iron
Please replace the tube unit and guide pipe asse’y, when
you change the soldering iron. It is not necessary to replace
the parts if the items are in the same frame in the following
chart. Foot switch is necessary if you use the HAKKO
MACH-I.
Tube Unit
Guide Pipe Asse’y
900M, 900L, N452, N453, N454 902, 903, 904
N452, N453, 900M N454, 900L 920, 921, 922 918
918, 920, 921, 922 907, 908
902, 903, 904 907 908

9
Options & Replacement Parts
Part No.
B1626
B1627
B1628
B1629
B1630
B1631
B1672
B1632
B1673
B1957
B1958
B2143
B2144
B1674
B1675
B1676
B1677
B1678
B1679
B1680
B1681
B1682
B1683
B1684
B1685
B1686
B1687
B1688
B1689
B1690
B1691
B1692
B1693
Part Name
Solder Dia. Adjustment Ring
Solder Dia. Adjustment Ring
Solder Dia. Adjustment Ring
Solder Dia. Adjustment Ring
Solder Dia. Adjustment Ring
Tube Unit A/with Switch
Tube Unit B/with Switch
Tube Unit C
Tube Unit D
Tube Unit E/with Switch
Tube Unit F/with Switch
Tube Unit J/with Switch
Tube Unit K/with Switch
Guide Pipe Asse’y
Guide Pipe Asse’y
Guide Pipe Asse’y
Guide Pipe Asse’y
Guide Pipe Asse’y
Guide Pipe Asse’y
Guide Pipe Asse’y
Guide Pipe Asse’y
Guide Pipe Asse’y
Guide Pipe Asse’y
Guide Pipe Asse’y
Guide Pipe Asse’y
Guide Pipe Asse’y
Guide Pipe Asse’y
Guide Pipe Asse’y
Guide Pipe Asse’y
Guide Pipe Asse’y
Guide Pipe Asse’y
Guide Pipe Asse’y
Guide Pipe Asse’y
Dia. of Solder
0.6, 0.65mm
0.8mm
1.0mm
1.2mm
1.6mm
0.6~1.0mm
1.2~1.6mm
0.6~1.0mm
1.2~1.6mm
0.6~1.0mm
1.2~1.6mm
0.6~1.0mm
1.2~1.6mm
0.6, 0.65mm
0.8mm
1.0mm
1.2mm
1.6mm
0.6, 0.65mm
0.8mm
1.0mm
1.2mm
1.6mm
0.6, 0.65mm
0.8mm
1.0mm
1.2mm
1.6mm
0.6, 0.65mm
0.8mm
1.0mm
1.2mm
1.6mm
Soldering Iron
-
-
-
-
-
900M, 900L, DASH
MACH-I
902, 903, 904
907, 908
900M, N452, N453
900L, N454
920, 921, 922
918