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4.

 

Apply solder to the joint, not the tip when soldering. The flux is naturally caustic 
and thus will eat away the tip. 

5.

 

Never clean the tip with a file or abrasive materials. 

6.

 

Do not use fluxes which contain chloride or acid. Use only rosin or resin activated 
fluxes. 

7.

 

If an oxide film forms on the tip, it can be removed by careful buffing with a 
600-800 grit emery cloth, isopropyl alcohol or equivalent and then wrapping rosin 
core solder around the newly exposed surfaces. Coat the tinned areas with rosin-core 
solder after the resin-core has melted. 

                                     
                                                  NEW TIPS 

Applying the following steps will lead to optimum life. 
1.

 

Set temperature to min. then turn the main power switch to the “ON” position. 

2.

 

Coat the tinned surfaces with rosin-core solder after reaching 25

0℃

3.

 

Set to desired temperature after allowing the unit to idle at 25

0℃

  for 3 minutes. 

4.

 

The iron will be ready for use once it reaches the preset temperature. 

 

IMPORTANT

: Remove and clean the tip daily. If a new tip is installed, remove any 

loose build up in the barrel assembly, otherwise the tip may fuse to the heating element 
or retaining barrel. 
 
   

MAINTENANCE 

 

TIP MAINTENANCE AND DRESSING 
Tips can be changed or replaced simply by unscrewing the knurled nut barrel assembly. 
The station must be switched off and allowed to cool before this operation as damage 
may result if the system is left on without the tip in place! 
After removing the tip, blow out any oxide dust that may have formed in the tip 
retaining area of the barrel. Be careful to avoid getting this dust in your eyes. Replace 
the tip and screw back the knurled nut barrel assembly using only firm hand pressure to 
tighten. Pliers should only be used to tighten the nut to avoid burning your fingers, but 
care should be taken not to over-tighten as this could damage the element. 

GENERAL CLEANING

 

The outer cover of the iron and station may be cleaned with a damp cloth using small 
amounts of liquid detergent. Never submerse the unit in liquid or allow any liquid to 
enter the case of the station. Never use any solvent to clean the case. 
 

SERVICE 

If the iron or station should become faulty or, for some reason not operate normally, the 
system should be returned to the service department of your authorized dealer or service 
agent. Or a similarly qualified person in order to avoid a hazard.   

Summary of Contents for LF-3500

Page 1: ...INSTRUCTION MANUAL FOR LF 3500 High Frequency Soldering Station...

Page 2: ...ating element or the metal parts near the tip Do not allow the tip to come close to or touch flammabe materials Inform others in the area that the unit is hot and should not be touched Turn the power...

Page 3: ...current and transient voltage spikes commonly produced by less efficient mechanically switched stations DETACHABLE AC POWER CORD WITH PLUG Engineered AC outlet for alternating AC power cord with plug...

Page 4: ...onents CMOS devices etc against damaging current and transient voltage spikes commonly produced by less efficient mechanically switched stations The power unit is isolated from the A C line by a trans...

Page 5: ...se 10 Earth Jack Fig 1 Soldering iron introduction Heating element With the high frequency heating get the rapid heat up time and great recovery Sensor Ahead of the tip greatly sense the temperature T...

Page 6: ...the iron s working temperature is set within the parameters suitable for the type of solder being used a good joint is assured Too low of a temperature will slow the rate of solder flow while a high...

Page 7: ...damaged or the soldering station becomes faulty discontinue use immediately To comply with safety standards the power lead must only be replaced by authorized technicians as special purpose tools are...

Page 8: ...F 2 and flashes that the unit enters the Temperature Correction Mode At this moment the LED displays preset correction value A Operation of Centigrade temperature correction Range 99 99 Press or key t...

Page 9: ...2 The tip working surfaces are not tinned while the iron idling 3 Lack of flux in soldering wicking repairing and touch up operations 4 Wiping the tip on a high sulfur content dirty or dry sponges an...

Page 10: ...may fuse to the heating element or retaining barrel MAINTENANCE TIP MAINTENANCE AND DRESSING Tips can be changed or replaced simply by unscrewing the knurled nut barrel assembly The station must be sw...

Page 11: ...10 INTERCHANGEABLE TIPS...

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