YIHUA 8786D 2-in-1 Rework Station - Operation Instructions

SPECIFICATION

I. APPLICATION

1. This unit is great for desoldering and soldering applications on small components, such as SOIC, CHIP, QFP, PLCC, BGA, SMD packaging, and more. This unit is especially suited for desoldering operations on sockets in in-line packaging.
2. The unit's applications include heat shrinking, drying, paint removal, glue removal, defrosting, pre-heating, glue soldering, and more.

II. CONTROL PANEL

Refer to the diagram for the control panel layout:

• 1. Display
• 2. Temperature Increase Button (Hot Air Rework Station)
• 3. Temperature Decrease Button (Hot Air Rework Station)
• 4. Power Switch (Hot Air Rework Station)
• 5. Receptacle (Hot Air Rework Station)
• 6. Receptacle (Soldering Station)
• 7. Power Switch (Soldering Station)
• 8. Air Volume Adjustment Knob
• 9. Temperature Decrease Button (Soldering Station)
• 10. Temperature Increase Button (Soldering Station)
• 11. Hot/Cool Air Switch

III. OPERATION

Hot Air Rework Station

1. Set the station correctly. Install the hot air gun holder to the left side of the station, and place the hot air gun onto the holder.
2. Install the required nozzle (Use of large diameter nozzles is recommended), and connect the station's power cord to an electrical outlet.
3. Turn ON the master power switch at the rear of the station, then turn on the power switch (hot air rework station). The temperature display shows "---" to indicate the hot air gun in standby mode. Use the temperature increase and decrease buttons to set the desired temperature, and then pick up the hot air gun. The hot air gun enters its standard operation status, and the hot air gun's operation indicator light (the dot located at the bottom-right corner of the temperature display) turns ON. The indicator stays ON when station heating up, blinks rapidly when the temperature is stabilized and turns OFF when station cooling. Adjust the air volume adjustment knob to set the appropriate airflow, and begin operation once the temperature has stabilized. The operation indicator blinks rapidly when the temperature enters stabilization. At this point, the precision PID program tracks and compensates the hot air gun's actual temperature every millisecond. The hot air gun is now in the high-precision thermostatic state.
4. When the operation is complete, place the hot air gun back to the holder. Turn OFF the power switch (hot air rework station), and the operation indicator light of the hot air gun turns OFF. The hot air gun now enters cool air mode to cool the heating element. When the temperature drops below 100°C/212°F, the hot air gun rework station temperature display turns OFF. If the station is not in use for an extended period, turn OFF the station's master switch and DISCONNECT the station's power plug.

Soldering Station

1. Connect the soldering iron to the station, then place the soldering iron into the iron holder.
2. Turn ON the master power switch at the rear of the station, then turn ON the power switch (soldering station). The soldering station's heating element will begin heating properly, and the station's operation indicator light (the dot located at the bottom-right corner of the soldering station's display) turns ON. The indicator light stays ON when station heating, blinks rapidly when the temperature is stabilized, turns OFF when station cooling. Begin with the operation when the soldering station's operation indicator light blinks rapidly to indicate temperature stabilization.

CAUTION:

Upon the first use of a new soldering tip, set the temperature to 250°C/482°F. When the soldering iron tip is just hot enough to melt the solder, coat the soldering iron tip with a layer of solder (the use of rosin core solder is recommended), then set the temperature to your desired value.

3. When the operation is complete, use a wet sponge or metal wool ball to clean the soldering iron tip. Tin the tip with a new layer of solder again, then put the soldering iron back to the holder. Turn OFF the power switch (soldering station). If the station is not in use for an extended period, turn OFF the station's master switch and DISCONNECT the power cord.

Temperature Calibration

Temperature discrepancies may occur due to the change in the environment's temperature or due to the replacement of the heating element and other components. You can correct the discrepancies with this function. The temperature calibration function can help improve work efficiency and prolong the lifespan of the soldering iron.

1. When the hot air rework station (soldering station) enters temperature stabilization, press and hold both the hot air rework station (soldering station) temperature increase and decrease buttons for approximately 2 seconds. The display will show the set temperature, along with three dots.
2. Press the hot air rework station(soldering station) temperature increase or decrease button to enter the measured temperature value.
3. Press both the hot air rework station (soldering station) temperature increase and decrease buttons to confirm entry. The system will calibrate the temperature automatically and exit the calibration interface.

Fahrenheit / Celsius Display

This function complies with different user preferences for users in different regions.

1. Turn ON the power switch for either the soldering station or the hot air rework station.
2. Press and hold both the soldering station's and the hot air rework station's temperature increase buttons for approximately 2 seconds. The display will show "C" to indicate the station in the Celsius display mode. Press the hot air rework station's or soldering station's temperature increase or decrease button to select the Celsius or Fahrenheit display mode.
3. Press the hot/cool air switch to confirm entry. The system will automatically save the setting data and exit the setting interface.

Zero-Air Protection (Hot Air Rework Station)

When the hot air gun stops putting out air abnormally during an operation, the system will automatically cut off the power to the heating element. This is to prevent the burn damages on the handle due to heat accumulation coming from not putting air out. This function further improves the safety factor of the product.

10-Minute Sleep Mode (Soldering Station)

The station can automatically detect its own operation status. When the station is detected to be static and not in use for longer than 10 minutes, the soldering iron will automatically cool to below 200°C/392°F and enter sleep mode. This function helps prevent the oxidization of the soldering iron tips effectively, extends the lifespan of the soldering iron tip, conserves energy, and protects the environment.

To wake the soldering station:

• A. Shake the soldering iron a couple of times,
• B. Press any button on the station's panel,
• Or C. Turn OFF, then turn ON the station's master power switch;

IV. MAINTENANCE & PRECAUTIONS

Hot Air Rework Station

1. Keep the air outlet clear and free of blockages at all times.
2. The installation of the hot air nozzles MUST be carried out ONLY when the steel pipe and nozzle have cooled. Install the nozzle correctly, DO NOT install the nozzle with brute force, pull the edge of the nozzle with tweezers, or over-tighten the screws.
3. Select the appropriate nozzle based on your operation requirement (temperature may vary when you using nozzles in different diameters). When using nozzles smaller than the standard machine nozzles, you MUST use the maximum air volume with a relatively lower temperature setting. Complete this operation in the shortest possible duration to avoid damaging the hot air gun.
4. Keep a minimum distance of 2mm between the object and the hot air gun's air outlet.
5. DO NOT allow the hot air to come in direct contact with facial parts, and beware of the danger of burn injuries. Upon the first use, the hot air gun may emit white fumes, and the white fume will dissipate in a short while.

NOTE:

The station's hot air gun and soldering iron handles use high-strength stainless steel tubes. The station goes through 4 times or more testing, inspection, and calibration procedures before rolling off the assembly line. The steel tube may exhibit light bronze color as a result of our quality control efforts. It is normal to have a slightly bronzed steel tube when using a brand-new station, rest assured for regular usage.

Soldering Station

1. If a layer of oxidization forms on the surface of the soldering iron tip, a misconception can be created that the tip cannot heat up properly to melt the solder and do the tinning. However, the actual temperatures of both the heating element and tip are high. In such an instance, please do not increase the temperature value confusedly but use a metal wool ball to remove the oxidization following the steps below:

• A. Set the temperature to 300°C (572°F).
• B. Once the temperature stabilizes, gently rub the soldering iron tip inside the metal wool ball.
• C. When the oxidization is partially removed, continue applying solder onto the soldering iron tip while rubbing it until the tip is completely coated with solder. If the tip is too severely oxidized beyond cleaning, replace it with a new one.

2. DO NOT use metal files to remove the oxidization on the soldering iron tip. If the soldering iron tip deforms or rusts, replace the soldering iron tip with a new tip.
3. DO NOT apply excessive force on the soldering iron tip when soldering. Doing this will NOT IMPROVE the heat transfer but damage the soldering iron tip instead.
4. When placing the soldering iron back in the holder to idle after a high-temperature operation, adjust the temperature to 250°C (482°F) or below for idling. Failure to do so, and leaving the soldering iron tip to idle in a high-temperature setting will cause the accelerated aging of the heating element and shorten the lifespan of the heating element and soldering iron tip.
5. After every operation, clean the soldering iron tip, then tin the tip with a new layer of solder to prevent oxidization.

V. TROUBLESHOOTING

1. "S-E" - This is an indication that the soldering iron's or the hot air gun's sensor module is faulty. You need to replace the heating element (the heating element and the sensor modules). Or it may be that the soldering iron has not been connected (Turn OFF the power, connect the soldering iron, then turn ON the station again.).
2. "F-1/F-2" - The hot air gun is in the zero-air protection mode. Check the hot air gun and its power circuitry.
3. "SLP" - An indication that the soldering iron is in sleep mode
4. When replacing the heating element, take note of the original connecting order and colors of the wires which MUST NOT be connected incorrectly.

Nozzle Style (specifications and sizes)

The nozzles sizes match with their corresponding IC sizes.

Hot Air Nozzles:

Tip Style (Specifications and Sizes)

900M Series Tip Out Diam Ø 6.5mm