Equipment/ReworkStation: Difference between revisions

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KADA 852D rework station
{{EquipmentInfobox
|name=Hot-air rework station <!-- Name of the item. -->
|image=KADA-852-rework.jpeg <!-- Image of the item. Leave with placeholder image if none exists. -->
|model=KADA-852 <!-- Model -->
|category=Equipment <!-- Main category. Please leave alone to keep item in this category -->
|subcat=Defunct<!-- Sub-category if one exists. Please check main listing to see other categories contained within the main one -->
|status=Out of order -- blows cold air, broken element suspected
|consumables=Unknown <!-- Any items used up in normal operation, such as; ink, paper, saw-blades, cutting disks, oil, etc.. -->
|accessories=Unknown <!-- Any items associated with the equipment but not consumable, such as; drill bits, safety gloves, goggles, etc.. -->
|reqtraining=no
|trainlink=Unknown <!-- If training is required, provide a link to training signup or contact page. Otherwise leave blank. -->
|acnode=no
|owner=Unknown <!-- Provide a link to owners members page if other than LHS -->
|origin=Unknown <!-- If via pledge, please link to the completed pledge page on the wiki -->
|location=Ground floor, electronics area near the front door<!-- Floor, room/zone and location within that area -->
|maintainers=Mentar, Mr_Ed<!-- NO LINKS PLEASE; it currently breaks the template. If someone is nominated as managing the upkeep of this item, please list them here. -->
|template_ver=1.1 <!-- Please do not change. Used for tracking out-of-date templates -->
}}


{{EquipmentInfobox
|name=Hot-air rework station <!-- Name of the item. -->
|image=hotair.jpg <!-- Image of the item. Leave with placeholder image if none exists. -->
|model=WEP 852D+ <!-- Model -->
|category=Equipment <!-- Main category. Please leave alone to keep item in this category -->
|subcat=Electronics<!-- Sub-category if one exists. Please check main listing to see other categories contained within the main one -->
|status=Working
|consumables=Unknown <!-- Any items used up in normal operation, such as; ink, paper, saw-blades, cutting disks, oil, etc.. -->
|accessories=Unknown <!-- Any items associated with the equipment but not consumable, such as; drill bits, safety gloves, goggles, etc.. -->
|reqtraining=no
|trainlink=Unknown <!-- If training is required, provide a link to training signup or contact page. Otherwise leave blank. -->
|acnode=no
|owner=Unknown <!-- Provide a link to owners members page if other than LHS -->
|origin=Unknown <!-- If via pledge, please link to the completed pledge page on the wiki -->
|location=Ground floor, electronics area near the front door<!-- Floor, room/zone and location within that area -->
|maintainers=Mentar, Mr_Ed<!-- NO LINKS PLEASE; it currently breaks the template. If someone is nominated as managing the upkeep of this item, please list them here. -->
|template_ver=1.1 <!-- Please do not change. Used for tracking out-of-date templates -->
}}
==Status==
==Status==


Iron has a new tip, but hot air part still not working.  
WARNING! Do NOT switch the unit off at the wall when it is still hot otherwise you will destroy the unit. To move the unit, switch off on the front panel and wait until the fan stops and the lights switch off.


Now fitted with [http://shop.ebay.co.uk/good-helper/m.html?_nkw=heating+element+850+220&_sacat=0&_odkw=heating+element+850&_osacat=0&_trksid=p3911.c0.m270.l1313 a new element].
The hot air element is said to be easily burnt out at low airflow rates. Presumably the temperature control is not fast enough to turn the heater off in time. Please be careful, especially at low airflow / high heat settings to avoid damage.


However, there's a further problem:


The hot air element apparently runs at mains potential. It's insulated from the earthed casing of the hot air gun by a glass (??) tube .. all except for the end, which tends to sit in the holes at the end of the tube.
===New gun (KADA 852D+)===
Air flow will only start when you remove the unit from the cradle.


It MAY be possible to position the element so that it doesn't short, but there's nothing obvious stopping it. I suspect there should be a small glass or ceramic spacer at the tip to stop this, and this has been lost.
==Specification==
* New gun: WEP 852D+
* Old gun: KADA 852D


At present, if you connect the element, the rework station will instantly blow a 13A plug fuse. Curiously, it never seems to blow the rework station fuse and always seems to blow the fuses in 4-way blocks/plugs rather than the actual rework station plug. I have disconnected the heater INSIDE THE CONTROL BOX to avoid this happening. Do not reconnect without solving the insulation problem.  
==Supplies==
'''Tips'''
 
*It appears that Kada don't sell tips, you are supposed to use [http://shop.ebay.co.uk/i.html?LH_AvailTo=3&_nkw=hakko+900m+tips&_arm=1&_armm=63&_ruu=http%3A%2F%2Fshop.ebay.co.uk%2Fi.html%3F_nkw%3Dhakko%2B900m%2Btips%26_arr%3D1&_rdc=1 Hakko 900M tips]. The last batch bought were [http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=370459046419 these].
 
'''Heating elements'''
 
The new gun is similar to the old one. The following information may or may not be applicable. Please use with care


Suggested solutions :


* Try to find the missing insulator. Is it with the heater that was removed ?
* Try some substitute, such as a ring cut from a ceramic tube (eg a plug fuse)
* Attempt to buy a replacement insulator
* Buy a replacement handle
* Buy a replacement soldering station


* Hot-air elements can be found cheaply on eBay: [http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=260750664990&ssPageName=STRK:MEWAX:IT example 1], [http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=310305476387&ssPageName=STRK:MEWAX:IT example 2]. Note that the part for the model 852D is different from that for the 852D+, possibly in the way the connections are made to the cable.


The seller of the replacement element also sells a [http://shop.ebay.co.uk/good-helper/m.html?_nkw=kada+852d+handle&_sacat=0&_odkw=kada+852d&_osacat=0&_trksid=p3911.c0.m270.l1313 complete hot-air handle unit] which may be required. However, I don't think it's a straight plug-in on the model we have.
Installation is a little fiddly.
* Undo screws holding handle together
** Pay close attention to the position of plastic plate through which the wires pass. This plate holds the element in the correct position and stops it from shorting out on the metal nozzle.
* Cut away heatshrink sleeving over 2 wires leading to heater
* Unplug bared crimp terminals
** Earth terminal should just unplug if necessary
** Power terminals are soldered as well as pushed together. Heat while unplugging.
* Unplug white plug block (thermistor connection)
* Remove element
* Replace element (teabot, can you add some notes since you found out how do do this right ?)
* Thread new heatshrink sleeving over power wires
** Note that wires are easily confused as both one of the power wires and the earth wire are black. Do not mix these up. Check continuity to earth pin on mains plug if unsure.
* Connect thermistor plug
* Connect power pins. Solder pins together. (I don't know why this is needed but that's how it was ..)
* Replace heatshrink over pins. Note that there is mains voltage on these pins so be careful that the sleeving is undamaged and will not be pinched.
* Reassembly is the reverse of disassembly.
* Hide leftover parts


I later found [http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=260750664990&ssPageName=STRK:MEWAX:IT these] [http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=310305476387&ssPageName=STRK:MEWAX:IT two] which appear to be the same element at a much lower price.
==Log book for old gun==
===9th May 2011 - Elliot===
* The earth lead had become detached from the nozzle. This had been spot welded and could not be soldered (the solder would melt). The nozzle was drilled and riveted instead.
* The element was moved further into the nozzle and secured with the internal plastic spacer (this holds the wire and is not near the element). Consequently the element doesn't arc now.


==Supplies==
===28th April 2011 - Adrian===
* Fitted with [http://shop.ebay.co.uk/good-helper/m.html?_nkw=heating+element+850+220&_sacat=0&_odkw=heating+element+850&_osacat=0&_trksid=p3911.c0.m270.l1313 a new element] but this was shorting and blowing a fuse because I had the element too close to the end of the tube. I thought there might be a ceramic spacer at the tip but there wasn't.
* The seller of the replacement element also sells a [http://shop.ebay.co.uk/good-helper/m.html?_nkw=kada+852d+handle&_sacat=0&_odkw=kada+852d&_osacat=0&_trksid=p3911.c0.m270.l1313 complete hot-air handle unit] which may be required. However, I don't think it's a straight plug-in on the model we have.
 
===18th November 2014===
 
Old KADA 852D was destroyed: overheat caused glass insulation to crack
 
===January 2015===
 
Someone (who? claim credit for awesomeness!) found a replacement heater head.
 
===5th Febuary 2015===
 
Broken: only blows cold air
 
 
== Log book for new gun ==
 
=== 18th November 2014 ===
 
 
[https://wiki.london.hackspace.org.uk/view/Pledge:_Hot_air_rework_station|New WEP 852D+ purchased]  due to old heat gun being destroyed.
 
===29th January 2014===
 
last, estimated, known working.
 
===6th January 2015===
[https://groups.google.com/forum/#!topic/london-hack-space/j2gswFXRUyI Reported] broken.
 
===5th Febuary -- Mr Ed ===
 
Vendor has promised to send a new power transformer


It appears that Kada don't sell tips, you are supposed to use Hakko tips.
===27th May -- Mr Ed===


e.g. http://cgi.ebay.co.uk/NEW-3PC-POINTED-STYLE-SOLDERING-TIP-LEAD-FREE-HAKKO-UK-/270505050551?pt=UK_Home_Garden_PowerTools_SM&hash=item3efb5b81b7
Vendor did indeed send new power transformer (these do not appear to be generally available unfortunately) and the unit is now fixed and working. However someone pinched the knob from the front.

Latest revision as of 08:49, 2 June 2019

Hot-air rework station
KADA-852-rework.jpeg
Model KADA-852
Sub-category Defunct
Status Out of order -- blows cold air, broken element suspected
Consumables Unknown
Accessories Unknown
Training requirement no
Training link Unknown
ACnode no
Owner Unknown
Origin Unknown
Location Ground floor, electronics area near the front door
Maintainers Mentar, Mr_Ed
Hot-air rework station
Hotair.jpg
Model WEP 852D+
Sub-category Electronics
Status Working
Consumables Unknown
Accessories Unknown
Training requirement no
Training link Unknown
ACnode no
Owner Unknown
Origin Unknown
Location Ground floor, electronics area near the front door
Maintainers Mentar, Mr_Ed

Status

WARNING! Do NOT switch the unit off at the wall when it is still hot otherwise you will destroy the unit. To move the unit, switch off on the front panel and wait until the fan stops and the lights switch off.

The hot air element is said to be easily burnt out at low airflow rates. Presumably the temperature control is not fast enough to turn the heater off in time. Please be careful, especially at low airflow / high heat settings to avoid damage.


New gun (KADA 852D+)

Air flow will only start when you remove the unit from the cradle.

Specification

  • New gun: WEP 852D+
  • Old gun: KADA 852D

Supplies

Tips

  • It appears that Kada don't sell tips, you are supposed to use Hakko 900M tips. The last batch bought were these.

Heating elements

The new gun is similar to the old one. The following information may or may not be applicable. Please use with care


  • Hot-air elements can be found cheaply on eBay: example 1, example 2. Note that the part for the model 852D is different from that for the 852D+, possibly in the way the connections are made to the cable.

Installation is a little fiddly.

  • Undo screws holding handle together
    • Pay close attention to the position of plastic plate through which the wires pass. This plate holds the element in the correct position and stops it from shorting out on the metal nozzle.
  • Cut away heatshrink sleeving over 2 wires leading to heater
  • Unplug bared crimp terminals
    • Earth terminal should just unplug if necessary
    • Power terminals are soldered as well as pushed together. Heat while unplugging.
  • Unplug white plug block (thermistor connection)
  • Remove element
  • Replace element (teabot, can you add some notes since you found out how do do this right ?)
  • Thread new heatshrink sleeving over power wires
    • Note that wires are easily confused as both one of the power wires and the earth wire are black. Do not mix these up. Check continuity to earth pin on mains plug if unsure.
  • Connect thermistor plug
  • Connect power pins. Solder pins together. (I don't know why this is needed but that's how it was ..)
  • Replace heatshrink over pins. Note that there is mains voltage on these pins so be careful that the sleeving is undamaged and will not be pinched.
  • Reassembly is the reverse of disassembly.
  • Hide leftover parts

Log book for old gun

9th May 2011 - Elliot

  • The earth lead had become detached from the nozzle. This had been spot welded and could not be soldered (the solder would melt). The nozzle was drilled and riveted instead.
  • The element was moved further into the nozzle and secured with the internal plastic spacer (this holds the wire and is not near the element). Consequently the element doesn't arc now.

28th April 2011 - Adrian

  • Fitted with a new element but this was shorting and blowing a fuse because I had the element too close to the end of the tube. I thought there might be a ceramic spacer at the tip but there wasn't.
  • The seller of the replacement element also sells a complete hot-air handle unit which may be required. However, I don't think it's a straight plug-in on the model we have.

18th November 2014

Old KADA 852D was destroyed: overheat caused glass insulation to crack

January 2015

Someone (who? claim credit for awesomeness!) found a replacement heater head.

5th Febuary 2015

Broken: only blows cold air


Log book for new gun

18th November 2014

WEP 852D+ purchased due to old heat gun being destroyed.

29th January 2014

last, estimated, known working.

6th January 2015

Reported broken.

5th Febuary -- Mr Ed

Vendor has promised to send a new power transformer

27th May -- Mr Ed

Vendor did indeed send new power transformer (these do not appear to be generally available unfortunately) and the unit is now fixed and working. However someone pinched the knob from the front.

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