Hakko Electronics 951 User Manual

English
®
Instruction Manual
Thank you for purchasing the Hakko 951/952 soldering gun.
This soldering gun has a built-in feeding mechanism that enables soldering with one hand.
Please read this manual before operating the Hakko 951/952.
Keep this manual readily accessible for reference.
CAUTION
● When using this unit for the first time, be sure to calibrate the tip temperature. Specific
information can be found in the instruction manual for your particular Hakko station.
● When inserting solder, be sure to push up the trigger and insert the solder until the end of
the solder protrudes from the guide nozzle.
■ Packing List
Soldering gun
■ Applicable Models
In order to function, the Hakko 951/952 must be connected to one of
the following Hakko stations: Hakko 700, 701, 702, 702B, 926, 927,
928, 936, 937.
■ Specifications
Name
Power consumption
Temperature range
Tip to ground
resistance
Tip to ground potential
Heating Element
Standard tip
Standard guide nozzle
(Solder diameter)
Usable solder diameter
Cord assembly
Total length (w/o cord)
H × W × D
Weight (w/o cord)
Hakko 951
AC 24 V 50 W
200°C–480°C/392°F–896°F
Under 2 Ω
Under 2 mV(TYP. 0.6 mV)
Ceramic heater
Shape-3C
Pre-tinned surface 55°
(No.900M-T-S10)
ø1.0 mm (0.039 in.)
ø0.6, 0.8, 1.0, 1.2 1.6 mm
(ø0.024, 0.031, 0.039, 0.047, 0.063 in.)
1.1 m (3.6 ft.)
180 × 170 × 23 mm (7.1 × 6.7 × 0.9 in.)
177 g (0.39 lbs.)
Hakko 952
Shape-B
(No.900L-T-B)
187 g (0.41 lbs.)
*Specifications and design are subject to change without notice.
■ Precautions
WARNING
Warnings and cautions are placed at critical points in this manual
to direct the operator’s attention to significant items. They are
defined as follows:
WARNING: Failure to comply with a WARNING may result in serious
injury or death.
CAUTION: Failure to comply with a CAUTION may result in injury
to the operator, or damage to the items involved. Two
examples are given below.
CAUTION
When power is ON, tip temperatures will be between 200°C and
480°C. (392°F to 896°F.) To avoid injury or damage to personnel
and items in the work area, observe the following:
● Do not touch the tip or the metal parts near the tip.
● Do not allow the tip to come close to, or touch, flammable materials.
● Inform others in the area that the unit is hot and should not be
touched.
● Turn the power off when not in use, or left unattended.
● Turn the power off and allow the unit to cool to room temperature
when changing parts or storing the Hakko 951/952.
CAUTION
To prevent accidents or damage to the Hakko 951/952, be sure to
observe the following:
● Do not use the unit for applications other than those specifically
described in the instruction manual.
● Before using the Hakko 951/952 for the first time, calibrate the tip
temperature.
● Do not strike the gun against hard objects to remove excess solder.
This will damage the gun.
● Do not modify the Hakko 951/952.
● Use only genuine Hakko replacement parts.
● Do not allow the Hakko 951/952 to become wet, or use it when hands
are wet.
● Be sure the work area is well ventilated. Soldering produces smoke.
● Remove power and gun cords by holding the plug – not the wires.
1

Hakko Electronics 951 Specifications

General

Type	Soldering Station
Temperature Range	32° - 896°F (0° - 480°C)
Power Consumption	75 W
Input Voltage	120 V
Temperature Stability	±1.8°F (1°C) at idle temperature

Summary

Precautions and Safety Information

Understanding Warning and Caution Levels

Defines WARNING and CAUTION levels to highlight potential hazards and risks during operation.

General Operational Safety

Provides crucial safety advice for operating the soldering gun, including temperature management and avoiding flammable materials.

Unit Integrity and Maintenance Safety

Outlines precautions for maintaining the unit's condition and ensuring safe handling during maintenance.

Applicable Models

Specifications

Troubleshooting Guide

Diagnosing Solder Clogging

Offers solutions for common solder clogging issues encountered during use.

Checking Heating Element and Cord

Explains how to test the heating element and cord assembly for proper function using resistance measurements.

Broken Soldering Gun Cord

Details methods for testing and identifying faults in the soldering gun's power cord.

Operation Instructions

Inserting and Feeding Solder

Details the correct method for inserting solder and how to feed it using the trigger mechanism.

Adjusting Solder Feed and Guide Nozzle

Explains how to adjust the solder feed pitch and the guide nozzle position for optimal performance.

Changing Solder Diameter and Connections

Covers switching solder diameter, connecting the unit, and initial calibration.

Parts List: Soldering Tips

951 Model Tip Compatibility

Details the specific soldering tips compatible with the Hakko 951 model and their characteristics.

952 Model Tip Compatibility

Details the specific soldering tips compatible with the Hakko 952 model and their characteristics.

Parts List: Internal Components

Component Identification

Provides a diagram and list of internal components and their part numbers for the Hakko 951/952.

Optional Accessories

Lists available optional accessories for the Hakko soldering gun, such as iron holders.