Lincoln Electric MOBIFLEX K2633-1 Service Manual
  1. Manuals
  2. Brands
  3. Lincoln Electric Manuals
  4. Welding Accessories
  5. K2633-1
  6. Service manual
Lincoln Electric MOBIFLEX K2633-1 Service Manual

Lincoln Electric MOBIFLEX K2633-1 Service Manual

400-ms(/he) mobile filter unit + lfa 3.1/4.1 extraction arm
Hide thumbs Also See for MOBIFLEX K2633-1:
Table of Contents

Advertisement

Quick Links

Download this manual
®
MOBIFLEX
400-MS(/HE) MOBILE FILTER UNIT
+ LFA 3.1/4.1 EXTRACTION ARM
For use with machines having Code Numbers:
®
Mobiflex
400-MS(/HE) Base Unit:
K1741-1 / K1741-2
Extraction Arm:
K2633-1 / K2633-2 / K2633-3 / K2633-4
SERVICE MANUAL
SVM258
| Issue D ate 15-Mar
© Lincoln Global, Inc. All Rights Reserved.
NOTE: This manual will cover most of the troubleshooting and repair
procedures for the code numbers listed. Some variances may exist when
troubleshooting/repairing later code numbers.

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the MOBIFLEX K2633-1 and is the answer not in the manual?

Questions and answers

Related Manuals for Lincoln Electric MOBIFLEX K2633-1

Summary of Contents for Lincoln Electric MOBIFLEX K2633-1

  • Page 1 NOTE: This manual will cover most of the troubleshooting and repair procedures for the code numbers listed. Some variances may exist when troubleshooting/repairing later code numbers. ® MOBIFLEX 400-MS(/HE) MOBILE FILTER UNIT + LFA 3.1/4.1 EXTRACTION ARM For use with machines having Code Numbers: ®...
  • Page 2 Service and repair should be performed by only exhaust at the arc, or both, to keep Lincoln Electric Factory Trained Personnel. Unauthorized the fumes and gases from your breathing zone and the general area. repairs performed on this equipment may result in danger...
  • Page 3 American Welding Society, P.O. Box 351040, Miami, Florida 33135 MAGNETIC FIELDS MAY or CSA Standard W117.2-1974. A Free copy of “Arc Welding Safety” booklet E205 is available from the Lincoln Electric Company, 22801 BE DANGEROUS St. Clair Avenue, Cleveland, Ohio 44117-1199.
  • Page 4 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC SAFETY ® ELECTRIC SHOCK ARC RAYS CAN BURN. CAN KILL. 3.a. The electrode and work (or ground) circuits are 4.a. Use a shield with the proper filter and cover electrically “hot” when the welder is on. Do plates to protect your eyes from sparks and the rays of the arc not touch these “hot”...
  • Page 5 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC SAFETY ® WELDING AND CUTTING CYLINDER MAY EXPLODE IF SPARKS CAN CAUSE DAMAGED. FIRE OR EXPLOSION. 7.a. Use only compressed gas cylinders containing the correct shielding gas for the process used 6.a.
  • Page 6 Electromagnetic Compatibility (EMC) Product Standard for Arc Welding equipment, in metallic conduit or equivalent. Shielding should be Equipment. It is for use with other Lincoln Electric equipment. It is electrically continuous throughout its length. The shielding should be designed for industrial and professional use.
  • Page 7 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC SAFETY ® Ventilation As a rule of thumb, for many mild steel electrode, if the air is visibly clear and you are comfortable, then the ventilation is generally There are many methods which can be selected by the user to adequate for your work.
  • Page 8 Limit) is 3.0 milligrams per cubic meter. OSHA PEL is a ceiling Know Act of 1986 and of 40CFR 370 and 372. Safety Data Sheet (MSDS) with product or on the Lincoln Electric TLV value for iron oxide is 5 milligrams per cubic meter.
  • Page 9 MOBIFLEX® 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC NOTES viii...
  • Page 10 MOBIFLEX® 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TABLE OF CONTENTS MASTER TABLE OF CONTENTS FOR ALL SECTIONS Page Safety ....................................ii-viii Installation, Operation, Accessories, Maintenance .................... See IM10121 Theory of Operation ..............................Section E Troubleshooting and Repair ............................Section F Electrical Diagrams ..............................Section G...
  • Page 11 THEORY OF OPERATION TABLE OF CONTENTS - THEORY OF OPERATION SECTION - Theory Of Operation ......................Section E Input Power And Motor Protection Switch .........E-2 Transformer, Contactor And Optional Auto Start / Stop Arc Sensor .
  • Page 12 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC THEORY OF OPERATION ® Figure E.2 - Input power and motor protection switch (OPTIONAL) CLEANING SOLENOID LAMP INTERCONNECTION PCB BOARD 24VAC CLEANING / ALARM LIGHT 30VDC CONTROL BOARD CLEANING ON/OFF SWITCH 24VAC PRESSURE DIFFERENCE SWITCH SWITCH...
  • Page 13 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC THEORY OF OPERATION ® Figure E.3 - Transformer, contactor and optional auto start / stop arc sensor (OPTIONAL) CLEANING SOLENOID LAMP INTERCONNECTION PCB BOARD 24VAC CLEANING / ALARM LIGHT 30VDC CONTROL BOARD CLEANING ON/OFF SWITCH 24VAC...
  • Page 14 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC THEORY OF OPERATION ® Figure E.4 - Motor (OPTIONAL) CLEANING SOLENOID LAMP INTERCONNECTION PCB BOARD 24VAC CLEANING / ALARM LIGHT 30VDC CONTROL BOARD CLEANING ON/OFF SWITCH 24VAC PRESSURE DIFFERENCE SWITCH SWITCH TRANSFORMER INPUT 115VAC...
  • Page 15 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC THEORY OF OPERATION ® Figure E.5 - Control board, cleaning system and fan switch (OPTIONAL) CLEANING SOLENOID LAMP INTERCONNECTION PCB BOARD 24VAC CLEANING / ALARM LIGHT 30VDC CONTROL BOARD CLEANING ON/OFF SWITCH 24VAC PRESSURE DIFFERENCE SWITCH SWITCH...
  • Page 16 MOBIFLEX® 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC NOTES...

  • Page 17: Table Of Contents

    TROUBLESHOOTING AND REPAIR TABLE OF CONTENTS - TROUBLESHOOTING AND REPAIR SECTION - Troubleshooting and Repair ....................Section F How to Use Troubleshooting Guide ..........F-2 PC Board Troubleshooting Procedures .

  • Page 18: How To Use Troubleshooting Guide

    HOW TO USE TROUBLESHOOTING GUIDE WARNING Service and repair should be performed by only Lincoln Electric Factory Trained Personnel. Unauthorized repairs performed on this equipment may result in danger to the technician and machine operator and will invalidate your factory warranty. For your safety and to avoid Electrical Shock, please observe all safety notes and precautions detailed throughout this manual.

  • Page 19: Pc Board Troubleshooting Procedures

    MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® PC BOARD TROUBLESHOOTING PROCEDURES 4. Test the machine to determine if the failure symptom has been WARNING corrected by the replacement PC board. NOTE: It is desirable to have a spare (known good) PC board available for PC board troubleshooting.

  • Page 20: Troubleshooting Guide

    4. Pressure difference switch may be defective. CAUTION If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact the Lincoln Electric Automation Department for electrical troubleshooting assistance before you proceed. Call 1-888-935-3878.
  • Page 21 1. Clean the extraction fan. steady. CAUTION If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact the Lincoln Electric Automation Department for electrical troubleshooting assistance before you proceed. Call 1-888-935-3878.
  • Page 22 2. Replace the arc sensor. CAUTION If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact the Lincoln Electric Automation Department for electrical troubleshooting assistance before you proceed. Call 1-888-935-3878.
  • Page 23 2. Halogen lamp may be defective. 2. Replace halogen lamp. CAUTION If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, contact the Lincoln Electric Automation Department for electrical troubleshooting assistance before you proceed. Call 1-888-935-3878.
  • Page 24 MOBIFLEX® 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC NOTES...

  • Page 25: Case Cover Removal And Replacement Procedure

    CASE COVER REMOVAL AND REPLACEMENT PROCEDURE WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty.
  • Page 26 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® CASE COVER REMOVAL AND REPLACEMENT PROCEDURE (continued) Figure F.1 – Compressed air connection point COMPRESSED AIR CONNECTION POINT 10. Label and disconnect the two leads from the rear of the ‘Cleaning/ REMOVAL PROCEDURE Alarm’...
  • Page 27 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® CASE COVER REMOVAL AND REPLACEMENT PROCEDURE (continued) Figure F.2 – Control housing removal MOUNTING SCREWS (4) CONTROL HOUSING Figure F.3 – Ground strap disconnection MOUNTING SCREW GROUND STRAP F-11...
  • Page 28 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® CASE COVER REMOVAL AND REPLACEMENT PROCEDURE (continued) Figure F.4 – Control panel cover mounting screw locations MOUNTING SCREWS (4) CONTROL PANEL Figure F.5 – Control panel cover components CONTROL PANEL FAN ON / OFF CLEANING /...
  • Page 29 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® CASE COVER REMOVAL AND REPLACEMENT PROCEDURE (continued) REPLACEMENT PROCEDURE 1. Carefully position the control panel cover onto the machine. 2. Carefully tilt the control panel cover forward to gain access to the lead connections at the rear of the control panel cover.
  • Page 30 MOBIFLEX® 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC NOTES F-14...

  • Page 31: Contactor Test

    CONTACTOR TEST WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 32 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® CONTACTOR TEST (continued) Figure F.6 – Contactor location CONTACTOR CONTROL PANEL 1/L1 3/L2 5/L3 PRIMARY SECONDARY TERMINALS TERMINALS 2/T1 4/T2 6/T3 11. Using a slotted screwdriver, connect the leads to terminals A1 and PROCEDURE A2 of the contactor.
  • Page 33 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® CONTACTOR TEST (continued) Figure F.7 – Contactor lead locations F-17...
  • Page 34 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC NOTES ® F-18...

  • Page 35: Transformer Test

    TRANSFORMER TEST WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 36 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® TRANSFORMER TEST (continued) Figure F.8 – Transformer location TRANSFORMER CONTROL PANEL 1/L1 3/L2 5/L3 PRIMARY SECONDARY TERMINALS TERMINALS 2/T1 4/T2 6/T3 10. Using a volt/ohmmeter, verify that 24VAC is being generated at PROCEDURE the secondary terminals of the transformer.
  • Page 37 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® TRANSFORMER TEST (continued) Figure F.9 – Transformer lead locations BROWN WHITE BROWN BLUE Figure F.10 – Transformer terminals PRIMARY SECONDARY TERMINALS TERMINALS F-21...
  • Page 38 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC NOTES ® F-22...

  • Page 39: Motor Protection Switch Test

    MOTOR PROTECTION SWITCH TEST WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 40 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® MOTOR PROTECTION SWITCH TEST (continued) Figure F.11 – Motor protection switch location MOTOR PROTECTION SWITCH CONTROL PANEL 1/L1 3/L2 5/L3 PRIMARY SECONDARY TERMINALS TERMINALS 2/T1 4/T2 6/T3 PROCEDURE 1.
  • Page 41 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® MOTOR PROTECTION SWITCH TEST (continued) Figure F.12 – Motor protection switch lead locations 1/L1 3/L2 5/L3 2/T1 4/T2 6/T3 Table F.1 – Motor protection switch resistance tests TEST POINTS TEST POINTS EXPECTED READING...
  • Page 42 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC NOTES ® F-26...

  • Page 43: Motor Test

    MOTOR TEST WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 44 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® MOTOR TEST (continued) Figure F.13 – Motor lead location CONTROL PANEL 1/L1 3/L2 5/L3 PRIMARY SECONDARY TERMINALS TERMINALS 2/T1 4/T2 6/T3 MOTOR LEADS PROCEDURE 1. Remove the input power to the Mobiflex 400-MS(/HE). 2.

  • Page 45: Motor Capacitor Test

    MOTOR CAPACITOR TEST WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 46 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® MOTOR CAPACITOR TEST (continued) Figure F.14 – Motor capacitor cover removal MOTOR CAPACITOR COVER MOTOR AND FAN ASSEMBLY MOUNTING SCREW (4) PROCEDURE 1. Remove the input power to the Mobiflex 400-MS(/HE) machine. 2.
  • Page 47 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® MOTOR CAPACITOR TEST (continued) Figure F.15 – Motor capacitor lead location MOTOR CAPACITOR CAPACITOR LEAD F-31...
  • Page 48 MOBIFLEX® 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC NOTES F-32...

  • Page 49: Control Pc Board And Cleaning Solenoid Test

    CONTROL PC BOARD AND CLEANING SOLENOID TEST WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty.
  • Page 50 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® CONTROL PC BOARD AND CLEANING SOLENOID TEST (continued) Figure F.16 – Control PC board location CONTROL CONTROL PANEL FUSE PC BOARD 1/L1 3/L2 5/L3 PRIMARY SECONDARY TERMINALS TERMINALS 2/T1 4/T2...
  • Page 51 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® CONTROL PC BOARD AND CLEANING SOLENOID TEST (continued) Figure F.17 – Cleaning on/off switch location CONTROL PANEL CLEANING / CLEANING COVER ALARM LIGHT ON / OFF SWITCH cleaning alarm reset...
  • Page 52 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® CONTROL PC BOARD AND CLEANING SOLENOID TEST (continued) Figure F.18 – Control board lead locations WHITE BROWN BLACK BLACK ORANGE ORANGE Figure F.19 – Solenoid location FILTER COVER FILTER CARTRIDGE CLEANING SOLENOID F-36...

  • Page 53: Extraction Arm Removal And Replacement Procedure

    REMOVAL AND REPLACEMENT PROCEDURE WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 54 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® EXTRACTION ARM REMOVAL AND REPLACEMENT PROCEDURE (continued) Figure F.20 – Extraction arm tubes EXTRACTION ARM EXTRACTION ARM TUBES RUBBER SEAL STRAP CONNECTION HOSE 10. Using a 13mm nutdriver and a 13mm open end wrench, remove REMOVAL PROCEDURE the upper mounting nut and bolt securing the extraction arm to 1.
  • Page 55 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® EXTRACTION ARM REMOVAL AND REPLACEMENT PROCEDURE (continued) Figure F.21 – Extraction arm removal UPPER MOUNTING NUT AND BOLT LOCATION LOWER MOUNTING NUT AND BOLT LOCATION EXTRACTION ARM MOUNTING BOLT (2) REPLACEMENT PROCEDURE 1.
  • Page 56 MOBIFLEX® 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC NOTES F-40...

  • Page 57: Front Wheel Removal And Replacement Procedure

    FRONT WHEEL REMOVAL AND REPLACEMENT PROCEDURE WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty.
  • Page 58 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® FRONT WHEEL REMOVAL AND REPLACEMENT PROCEDURE (continued) Figure F.22 – Front wheel removal FRONT WHEEL ASSEMBLY MOUNTING NUT (4) REMOVAL PROCEDURE 1. Remove the input power to the Mobiflex 400-MS(/HE) machine. 2.
  • Page 59 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® FRONT WHEEL REMOVAL AND REPLACEMENT PROCEDURE (continued) REPLACEMENT PROCEDURE 1. With the machine on its side, position the new wheel onto the mounting posts. 2. Using a 13mm nutdriver, attach the four nuts securing the front wheel to the machine.
  • Page 60 MOBIFLEX® 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC NOTES F-44...

  • Page 61: Terminal Block Removal And Replacement Procedure

    REMOVAL AND REPLACEMENT PROCEDURE WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 62 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® TERMINAL BLOCK REMOVAL AND REPLACEMENT PROCEDURE (continued) Figure F.23 – Terminal block lead locations WHITE GREEN BROWN FRONT OPENINGS FRONT OPENINGS BROWN WHITE GREEN REMOVAL PROCEDURE 1. Remove the input power to the Mobiflex 400-MS(/HE) machine. 2.
  • Page 63 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® TERMINAL BLOCK REMOVAL AND REPLACEMENT PROCEDURE (continued) Figure F.24 – Terminal block mounting screw locations MOUNTING SCREWS REPLACEMENT PROCEDURE 1. Carefully position new terminal block onto machine. 2.
  • Page 64 MOBIFLEX® 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC NOTES F-48...

  • Page 65: Contactor Removal And Replacement Procedure

    CONTACTOR REMOVAL AND REPLACEMENT PROCEDURE WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 66 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® CONTACTOR REMOVAL AND REPLACEMENT PROCEDURE (continued) Figure F.25 – Contactor lead locations REMOVAL PROCEDURE 1. Remove the input power to the Mobiflex 400-MS(/HE). 2. Perform the Case Cover Removal Procedure. 3.
  • Page 67 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® CONTACTOR REMOVAL AND REPLACEMENT PROCEDURE (continued) REPLACEMENT PROCEDURE 1. Carefully position new contactor in front of DIN rail. 2. Place the bottom tabs of the contactor on the DIN rail and rock the contactor upward onto the DIN rail until it snaps onto the DIN rail.
  • Page 68 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC NOTES ® F-52...

  • Page 69: Transformer Removal And Replacement Procedure

    TRANSFORMER REMOVAL AND REPLACEMENT PROCEDURE WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 70 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® TRANSFORMER REMOVAL AND REPLACEMENT PROCEDURE (continued) Figure F.26 – Transformer lead locations BROWN WHITE BROWN BLUE REMOVAL PROCEDURE 1. Remove the input power to the Mobiflex 400-MS(/HE). 2.
  • Page 71 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® TRANSFORMER REMOVAL AND REPLACEMENT PROCEDURE (continued) Figure F.27 – Transformer mounting screw locations MOUNTING SCREWS (4) REPLACEMENT PROCEDURE 1. Carefully position new transformer onto machine. 2. Using a Phillips screwdriver, attach the four screws securing the transformer to the machine.
  • Page 72 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC NOTES ® F-56...

  • Page 73: Motor Protection Switch Removal And Replacement Procedure

    REMOVAL AND REPLACEMENT PROCEDURE WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 74 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® MOTOR PROTECTION SWITCH REMOVAL AND REPLACEMENT PROCEDURE (continued) Figure F.28 – Motor protection switch lead locations 1/L1 3/L2 5/L3 2/T1 4/T2 6/T3 REMOVAL PROCEDURE 1. Remove the input power to the Mobiflex 400-MS(/HE). 2.
  • Page 75 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® MOTOR PROTECTION SWITCH REMOVAL AND REPLACEMENT PROCEDURE (continued) REPLACEMENT PROCEDURE 1. Position the new motor protection switch in front of the DIN rail. 2. Rest the upper mounting tabs, on the rear of the motor protection switch, onto the DIN rail and rock the motor protection switch assembly downward until it snaps onto the DIN rail.
  • Page 76 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC NOTES ® F-60...

  • Page 77: Motor And Fan Removal And Replacement Procedure

    MOTOR AND FAN REMOVAL AND REPLACEMENT PROCEDURE WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty.
  • Page 78 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® MOTOR AND FAN REMOVAL AND REPLACEMENT PROCEDURE (continued) Figure F.29 – Solenoid lead locations SOLENOID LEADS 11. Loosen the plastic nut on the cable grommet and pull the cables REMOVAL PROCEDURE out of the motor.
  • Page 79 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® MOTOR AND FAN REMOVAL AND REPLACEMENT PROCEDURE (continued) Figure F.30 – Motor and fan assembly removal MOTOR AND FAN ASSEMBLY MOUNTING SCREW (9) Figure F.31 – Motor capacitor cover removal MOTOR CAPACITOR COVER MOTOR AND FAN...
  • Page 80 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® MOTOR AND FAN REMOVAL AND REPLACEMENT PROCEDURE (continued) Figure F.32 – Motor lead locations MOTOR CAPACITOR POWER CABLE MOTOR LEADS Figure F.33 – Motor and fan assembly removal WASHER MOUNTING BOLTS (4) FAN HOUSING...
  • Page 81 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® MOTOR AND FAN REMOVAL AND REPLACEMENT PROCEDURE (continued) 10. Using a Phillips screwdriver, attach the four screws securing the REPLACEMENT PROCEDURE motor capacitor cover. 1. Carefully place the motor assembly upright on a flat surface. 11.
  • Page 82 MOBIFLEX® 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC NOTES F-66...

  • Page 83: Motor Capacitor Removal And Replacement Procedure

    REMOVAL AND REPLACEMENT PROCEDURE WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 84 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® MOTOR CAPACITOR REMOVAL AND REPLACEMENT PROCEDURE (continued) Figure F.34 – Motor capacitor cover removal MOTOR CAPACITOR COVER MOTOR AND FAN ASSEMBLY MOUNTING SCREW (4) REMOVAL PROCEDURE 1. Remove the input power to the Mobiflex 400-MS(/HE) machine. 2.
  • Page 85 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® MOTOR CAPACITOR REMOVAL AND REPLACEMENT PROCEDURE (continued) Figure F.35 – Motor capacitor lead location MOTOR CAPACITOR CAPACITOR LEAD REPLACEMENT PROCEDURE 1. Carefully position the motor capacitor into the motor capacitor compartment on the side of the motor and fan assembly.
  • Page 86 MOBIFLEX® 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC NOTES F-70...

  • Page 87: Control Pc Board Removal And Replacement Procedure

    REMOVAL AND REPLACEMENT PROCEDURE WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 88 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® CONTROL PC BOARD REMOVAL AND REPLACEMENT PROCEDURE (continued) Figure F.36 – Control PC board lead locations REMOVAL PROCEDURE 1. Remove the input power to the Mobiflex 400-MS(/HE). 2.
  • Page 89 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® CONTROL PC BOARD REMOVAL AND REPLACEMENT PROCEDURE (continued) Figure F.37 – Control PC board mounting points CONTROL PC BOARD MOUNTING POINTS (4) REPLACEMENT PROCEDURE 1. Carefully secure the control PC board onto the four plastic stand offs.
  • Page 90 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC NOTES ® F-74...

  • Page 91: Cleaning Solenoid Removal And Replacement Procedure

    REMOVAL AND REPLACEMENT PROCEDURE WARNING Service and repair should be performed only by Lincoln Electric factory trained personnel. Unauthorized repairs performed on this equipment may result in danger to the technician or machine operator and will invalidate your factory warranty. For your safety and to avoid electrical shock, please observe all safety notes and precautions detailed throughout this manual.
  • Page 92 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® CLEANING SOLENOID REMOVAL AND REPLACEMENT PROCEDURE (continued) Figure F.38 – Solenoid removal THUMB NUT FILTER COVER FILTER CARTRIDGE CLEANING SOLENOID REMOVAL PROCEDURE 1. Remove the input power to the Mobiflex 400-MS(/HE). 2.
  • Page 93 MOBIFLEX 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TROUBLESHOOTING AND REPAIR ® CLEANING SOLENOID REMOVAL AND REPLACEMENT PROCEDURE (continued) REPLACEMENT PROCEDURE 1. Carefully place the new solenoid onto the mounting post. 2. Connect the two previously removed leads to the solenoid. See Wiring Diagram.
  • Page 94 MOBIFLEX® 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC NOTES F-78...
  • Page 95 DIAGRAMS MOBIFLEX® 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC TABLE OF CONTENTS - DIAGRAMS SECTION - Diagrams ..........................Section G Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . G-2...
  • Page 96 DIAGRAMS MOBIFLEX® 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/AUTOMATIC MOBIFLEX® 400-MS(/HE) BASE UNIT + LFA 3.1/4.1 (K2633-X) MANUAL/ AUTOMATIC...

This manual is also suitable for:

Mobiflex k2633-2Mobiflex k2633-3Mobiflex k2633-4Mobiflex k1741-1Mobiflex k1741-2

Table of Contents