Leister TRIAC AT Repair Instructions
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Leister TRIAC AT Repair Instructions

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Leister Technologies AG
REPAIR INSTRUCTIONS
© 2012 Leister Technologies AG, CH-6056 Kaegiswil
These repair instructions may not be distributed or reproduced in part or in whole in any form
without prior written consent from Leister Technologies AG, CH-6056 Kaegiswil.
Leister Technologies AG, CH-6056 Kaegiswil / Switzerland,
www.leister.com
Repair Instructions
TRIAC AT
Revision: A
Hot Air Tool
TRIAC AT
Serial number from 1106067414
Software version from 1.00
QM
Page
Created
Released
Modified
Tel. +41 41 662 74 74 Fax +41 41 662 74 16
INN_FO_29
1 / 38
05.03.12 PRI
19.03.12 PRI
leister@leister.com

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Summary of Contents for Leister TRIAC AT

  • Page 1 © 2012 Leister Technologies AG, CH-6056 Kaegiswil These repair instructions may not be distributed or reproduced in part or in whole in any form without prior written consent from Leister Technologies AG, CH-6056 Kaegiswil. Leister Technologies AG, CH-6056 Kaegiswil / Switzerland, Tel.

  • Page 2: Table Of Contents

    Cleaning ......................... 28 10 Heating element ......................29 11 Wiring diagram ......................31 12 Test procedure for TRIAC AT (protection class II) ............. 32 13 Equipment required for Leister repair service ............34 14 Error messages and repair methods ................35...

  • Page 3: Scope Of Applicability

    These repair instructions are reserved exclusively for Leister service centres. Only experi- enced and qualified personnel trained by Leister Technologies AG, CH-6056 Kaegiswil, are allowed to do repair work on Leister tools. Additional national requirements relative to per- sonnel carrying out repair work are to be observed by each service centre.

  • Page 4: Errors And Possible Causes

    INN_FO_29 Repair Instructions Page 4 / 38 TRIAC AT Created 05.03.12 PRI Leister Technologies AG Released 19.03.12 PRI Revision: A Modified Errors and possible causes Error Possible cause Method of resolution No function Wiring error If the flex wires for power...
  • Page 5 Timer "Service recom- Check carbon brushes nouncement mended" elapsed (chapter 8.3.) Temperature limit switch Triac AT air flow is too little Clean air filters (according to acts often / over and over operating manual) Check nozzle for obstruction (clean or replace)

  • Page 6: Service Menu

    Error memory 1 Error memory 9  No heating output as long as the Triac AT is in service menu mode  Numbers of more than 4 digits are displayed as ticker  Quit service menu by disconnecting tool from rated voltage only...

  • Page 7: Service Code

    First menu item pops up 5.2 Temperature unit Triac AT enables to display the set and actual temperatures in °C or °F units. Select °C or °F unit in the service menu. Menu item "Temperature unit" shows the selected temperature unit...

  • Page 8: Reset Of "Service Recommended" Announcement

    After expiration of a preset time limit the display shows the an- nouncement "Carbon brushes nearing end of life". The icon "Motor" flashes, but the Triac AT hot air tool may be used further on with no restrictions. As long as this time is not expired the menu item "Reset service recommended" shows the number of hours until expiration.
  • Page 9 INN_FO_29 Repair Instructions Page 9 / 38 TRIAC AT Created 05.03.12 PRI Leister Technologies AG Released 19.03.12 PRI Revision: A Modified 5.3.1 From software version 1.02 Menu item "Reset service recommended" indicates the number of hours until warning notice "Service recommended" will appear Reset warning notice "Service recommend-...
  • Page 10 INN_FO_29 Repair Instructions Page 10 / 38 TRIAC AT Created 05.03.12 PRI Leister Technologies AG Released 19.03.12 PRI Revision: A Modified 5.3.2 Software version 1.01 and earlier Menu item "Reset service recommended" indicates the number of hours until warning notice "Service recommended" will appear Reset warning notice "Service recommend-...

  • Page 11: Operating Hours Counter

    Menu item "Operating hours counter" indi- cates the operating hours 5.5 Number of operation activations Triac AT increases the number of operation activations with each connection of the tool to line/mains voltage. Line/mains interrupts are recorded as well. Menu item "Number of operation activa- tions"...

  • Page 12: Quit Menu

    INN_FO_29 Repair Instructions Page 12 / 38 TRIAC AT Created 05.03.12 PRI Leister Technologies AG Released 19.03.12 PRI Revision: A Modified Menu item "Error code memory" indicates recorded error code (Error message and troubleshooting see chapter 14) Note: The error code is of three digits; low-...

  • Page 13: Electronics

    INN_FO_29 Repair Instructions Page 13 / 38 TRIAC AT Created 05.03.12 PRI Leister Technologies AG Released 19.03.12 PRI Revision: A Modified Electronics Caution: The following test procedure sometimes requires the tool to be connect- ed to the line/mains. Insure the tool is disconnected from the line/mains before any work is commenced! 6.1 Opening tool...

  • Page 14: Tool Assembling

    INN_FO_29 Repair Instructions Page 14 / 38 TRIAC AT Created 05.03.12 PRI Leister Technologies AG Released 19.03.12 PRI Revision: A Modified 6.1.1 Handle Replace handle if it is fairly worn out (abrasion, mechanical damage) or if the rubber is refrac- tory or extremely soaked (sticky).

  • Page 15: Electric Components

    INN_FO_29 Repair Instructions Page 15 / 38 TRIAC AT Created 05.03.12 PRI Leister Technologies AG Released 19.03.12 PRI Revision: A Modified Electric components 7.1 Power supply cord - Check power supply cord for mechanical damages (jacket insulation, sharp kink, plug)
  • Page 16 INN_FO_29 Repair Instructions Page 16 / 38 TRIAC AT Created 05.03.12 PRI Leister Technologies AG Released 19.03.12 PRI Revision: A Modified Insert replacement power supply cord from outside into the handle Insert power supply cord into cord guard Press slotted screw driver size 1 in terminal;...

  • Page 17: Internal Wiring

    INN_FO_29 Repair Instructions Page 17 / 38 TRIAC AT Created 05.03.12 PRI Leister Technologies AG Released 19.03.12 PRI Revision: A Modified 7.2 Internal wiring  Check all flex wires for breaks, short circuits and mechanical damages  Check correct wiring. Terminal and flex wires are of the same color (compare with illustra-...

  • Page 18: Thermocouple

    INN_FO_29 Repair Instructions Page 18 / 38 TRIAC AT Created 05.03.12 PRI Leister Technologies AG Released 19.03.12 PRI Revision: A Modified 7.3 Thermocouple Open tool according to chapter 6.1  Check thermocouple for mechanical damages  Check correct connection of thermocouple (ob- serve color code;...

  • Page 19: Electronic Circuit Boards

    INN_FO_29 Repair Instructions Page 19 / 38 TRIAC AT Created 05.03.12 PRI Leister Technologies AG Released 19.03.12 PRI Revision: A Modified 7.4 Electronic circuit boards Caution! The following measurement sometimes requires the tool to be connected to the line/mains. Insure the tool is disconnected from the line/mains before any work is commenced! 7.4.1 Visual inspection...
  • Page 20 INN_FO_29 Repair Instructions Page 20 / 38 TRIAC AT Created 05.03.12 PRI Leister Technologies AG Released 19.03.12 PRI Revision: A Modified Power supply (blue and brown flex wire): Press slotted screw driver in terminal, con- nect flex wires Signal lines: Connect flex wires without op- erating terminal levers;...
  • Page 21 INN_FO_29 Repair Instructions Page 21 / 38 TRIAC AT Created 05.03.12 PRI Leister Technologies AG Released 19.03.12 PRI Revision: A Modified Detach rear electronic circuit support which is snapped on the motor end bell Remove power supply cord: Press slotted...
  • Page 22 7.4.5 Function check of the electronic circuit board in the handle When switching on the replacement electronic circuit the first time the software requires an initial operation test. Connect Triac AT to rated voltage (accord- ing to nameplate) Start Triac AT by pressing e-Drive control button for a long time (at least 1 second) Display indicates "Test 2"...
  • Page 23 (may be altered in service menu, chapter 5.2); then tool starts heating Triac AT heats with maximum power (pos- sibly reduced by heating element protection only); blower runs on level 3; display shows thermocouple temperature without addition of ambient temperature;...

  • Page 24: Motor

    INN_FO_29 Repair Instructions Page 24 / 38 TRIAC AT Created 05.03.12 PRI Leister Technologies AG Released 19.03.12 PRI Revision: A Modified Motor 8.1 Function check Caution! The following measurement sometimes requires the tool to be connected to the line/mains. Insure the tool is disconnected from the line/mains before any work is commenced! 1.
  • Page 25 INN_FO_29 Repair Instructions Page 25 / 38 TRIAC AT Created 05.03.12 PRI Leister Technologies AG Released 19.03.12 PRI Revision: A Modified Open tool according to chapter 6.1 Carefully bend up the ear of the carbon brush support and remove carbon brush...

  • Page 26: Replace Motor

    INN_FO_29 Repair Instructions Page 26 / 38 TRIAC AT Created 05.03.12 PRI Leister Technologies AG Released 19.03.12 PRI Revision: A Modified 8.4 Replace motor Open tool according to chapter 6.1 Remove motor flex wires: Extract flex wires off the supports on the motor...

  • Page 27: Replace Impellers

    INN_FO_29 Repair Instructions Page 27 / 38 TRIAC AT Created 05.03.12 PRI Leister Technologies AG Released 19.03.12 PRI Revision: A Modified 8.5 Replace impellers Replace impellers if they are damaged or essentially deformed. We advise polluted impellers to be replaced rather than to be cleaned.

  • Page 28: Cleaning

    INN_FO_29 Repair Instructions Page 28 / 38 TRIAC AT Created 05.03.12 PRI Leister Technologies AG Released 19.03.12 PRI Revision: A Modified Move the lower impeller to the top; as soon as it is enough far from the bottom, it may be removed the same way as the upper tur- bine.

  • Page 29: Heating Element

    INN_FO_29 Repair Instructions Page 29 / 38 TRIAC AT Created 05.03.12 PRI Leister Technologies AG Released 19.03.12 PRI Revision: A Modified 10 Heating element Loosen PT pan head cap screws KA35x20 (4x) and remove heater tube with mica tube Heating element may be removed now; gas-...
  • Page 30 INN_FO_29 Repair Instructions Page 30 / 38 TRIAC AT Created 05.03.12 PRI Leister Technologies AG Released 19.03.12 PRI Revision: A Modified Prior to assembling the heating element assemble thermocouple to print adapter front as described in chapter 7.4.3; connect all flex wires, then insert entire sub-...

  • Page 31: Wiring Diagram

    INN_FO_29 Repair Instructions Page 31 / 38 TRIAC AT Created 05.03.12 PRI Leister Technologies AG Released 19.03.12 PRI Revision: A Modified Assemble heater tube; make sure both grooves match cams of the blower housing Tighten head caps screws KA35x20 (4x) to cross 11 Wiring diagram Print adapter rear 100...230V...

  • Page 32: Test Procedure For Triac At (Protection Class Ii)

    Released 19.03.12 PRI Revision: A Modified 12 Test procedure for TRIAC AT (protection class II) Insulation test  Function check of the high voltage tester: Shorten tips  Signal lamp illuminates and horn sounds  Apply a high voltage of 2500V (release current < 30mA) for 1 second between line/mains plug and protection tube of the heating element;...
  • Page 33 INN_FO_29 Repair Instructions Page 33 / 38 TRIAC AT Created 05.03.12 PRI Leister Technologies AG Released 19.03.12 PRI Revision: A Modified Check air outlet temperature: Insert external thermocouple 5mm into the center of the tubular nozzle; thermocouple must not touch nozzle at all Temperature 700°C (1290°F) ±...

  • Page 34: Equipment Required For Leister Repair Service

    0000: consecutive number  Company label LEISTER must be neatly printed on the handle  Warnings must be printed on the handle  Check power supply cord mechanically and electrically (correct plug type for country, conductor cross-section as per rated current) ...

  • Page 35: Error Messages And Repair Methods

    Revision: A Modified 14 Error messages and repair methods The Triac AT display indicates error messages as hex codes. They are saved in the error memory. Several error codes are indicated with special views (see column Reason). Error no. Reason...
  • Page 36 INN_FO_29 Repair Instructions Page 36 / 38 TRIAC AT Created 05.03.12 PRI Leister Technologies AG Released 19.03.12 PRI Revision: A Modified Error no. Reason Description / Repair method(s) E020h Zero crossing detection fail Zero crossing detection of line/mains voltage failed 1.) Replace print adapter rear (chapter 7.4.4)
  • Page 37 INN_FO_29 Repair Instructions Page 37 / 38 TRIAC AT Created 05.03.12 PRI Leister Technologies AG Released 19.03.12 PRI Revision: A Modified Error no. Reason Description / Repair method(s) E054h Write fault error on serial Communication error print adapter rear / print adapter front...
  • Page 38 INN_FO_29 Repair Instructions Page 38 / 38 TRIAC AT Created 05.03.12 PRI Leister Technologies AG Released 19.03.12 PRI Revision: A Modified Error no. Reason Description / Repair method(s) E072h - Overvoltage Over-, respectively undervoltage at test 2 (initial operation) If operating voltage is correct, print adapter front is defective or...

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