Component Technical Manual
TQM Meter for Fuel Dispensers
Document Ref 942175-001 Rev 3
Page 4-1
CONTENTS
4
TROUBLESHOOTING ............................................................................................... 4-2
4.1
Blocked Piston Meter ........................................................................................ 4-2
4.2
Display Faults .................................................................................................... 4-3
4.3
External Leakage ............................................................................................... 4-4
Page 1: ...Document Ref 942175 001 Rev 3 10 2010 TQM Manual Inc Ethanol Grades...
Page 2: ...maintain or to repair the product by parties other than those fully trained by Tokheim or by its accredited third party representatives Please contact your nearest service department at the relevant...
Page 3: ...r and Captive Nuts 2 5 4 Cylinder Cover Assembly Drawing Updated 2 5 6 Piston Assembly Part no changes 2 5 7 Crankshaft Assembly Drawing Updated 25 10 2010 3 Newcorporate standard front back cover New...
Page 4: ...2 Document Ref 942175 001 Rev 3 TQM for Fuel Dispensers Component Technical Manual This page is intentionally blank...
Page 5: ...trical Description 2 3 2 4 Piston Meter Operation 2 6 2 5 Dimensions 2 8 2 6 Hydraulic Performance Ranges and Tolerances 2 8 2 7 Environmental Conditions 2 8 3 MOUNTING CONNECTING ADJUSTINGTHE TQM 3 2...
Page 6: ...4 Document Ref 942175 001 Rev 3 TQM for Fuel Dispensers Component Technical Manual This page is intentionally blank...
Page 7: ...1 2 1 1 How to Use this Manual 1 2 1 2 Product Scope 1 2 1 3 AuthorisedTechnicians 1 2 1 4 Contact Information 1 2 1 5 Health Safety 1 3 1 5 1 Safety Checklist 1 3 1 5 2 Duties of the Employees 1 3 1...
Page 8: ...section provides the information on mounting connecting and adjusting the TQM Section 4 Troubleshooting This section gives information on troubleshooting problems with the TQM Section 5 Spare Parts Se...
Page 9: ...applying to worker s protection it is necessary to take into account all the national protection of workers legislation and to actively support all measures which enhance safety standards It is an emp...
Page 10: ...sed it This depends upon the national regulations in force Dismantled packaging and cladding must be stored in such a way as to avoid damage to components or injuries to persons Covers that can be ope...
Page 11: ...ive shoes conductive Protective gloves and or protective hand cream Anti static clothing Eye protection Do not spill fuel on the ground Visible from both sides of dispenser Stop vehicle engine Visible...
Page 12: ...urement transducer for use in a measuring instrument for liquids other than water As such it is tested and certified in conformity with the requirements of all the applicable European Directives Machi...
Page 13: ...PRODUCT INFORMATION 2 2 2 1 Functional Description 2 2 2 2 The Piston Meter 2 2 2 3 The Pulser 2 3 2 3 1 Mechanical Description 2 3 2 3 2 Electrical Description 2 3 2 4 Piston Meter Operation 2 6 2 5...
Page 14: ...set of gears to a common drive shaft onto which the electronic subsystem the pulser is mounted The pulser is integrated in the top cover of the meter The pulser converts the rotational movement of th...
Page 15: ...es per revolution of the meter The opposite side or both sides of this totaliser shaft can be closed by a plug which can be sealed The totaliser shaft is rotated with a constant ratio of 1 0 05 The ma...
Page 16: ...ency makes it possible to distinguish normal operation from sensor defects or disc oscillations DIGITAL FILTER This part will remove glitches shorter than 8 microseconds from the sensor signals SEQUEN...
Page 17: ...d liquid flow will cause the disc to rotate counter clockwise The disc can have small movements oscillations in both directions caused by vibrations of the pulser These oscillations will not result in...
Page 18: ...ton 5 Crankshaft 6 Gear 2 4 Piston Meter Operation The following phases of the piston meter can be identified as shown in the following diagram PHASE 1 A B C D B D C A A B D C A C D B Inlet fuel entry...
Page 19: ...he exit side Phase 3 The LH piston is against the rear stop The channels to chambers A and B are closed by the control valve The fuel flows into chamber C The RH piston moves towards chamber D The fue...
Page 20: ...s Inlet outlet nominal diameter ND 30 mm Cyclic volume 0 5 l rev Minimum flow rate 1 6 l min Maximum flow rate 80 l min Maximum error 0 3 1 6 l min to 80 l min Maximum pressure 4 bar Torque during de...
Page 21: ...ING CONNECTING ADJUSTINGTHE TQM 3 2 3 1 Front View 3 2 3 2 PlanView 3 2 3 3 Correct SealingApplication W M 3 3 3 4 Pulser Connections MPT1 3 3 3 5 MechanicalAdjustment 3 4 3 6 Flushing and Calibration...
Page 22: ...wo M8 screws and at the control head inside the dispenser by three M6 screws The screws are evenly spaced thus allowing three possible mounting positions offset by 120 The entrance and exit flanges of...
Page 23: ...3 3 3 4 Pulser Connections MPT1 Brown 0V White ChannelA Green Channel B Yellow Supply 25V typ 3 3 Correct Sealing Application W M Calibration Sealing Calibration Sealing Wire Tote Port Seal Tote Port...
Page 24: ...nd rear chambers in a specific sequence in relation to the pistons This is dependent upon the position of the control valve relative to the crank shafts The correct positioning of the control valve ge...
Page 25: ...Component Technical Manual TQM Meter for Fuel Dispensers Document Ref 942175 001 Rev 3 Page 3 5 This page is intentionally blank...
Page 26: ...n flush with the 2x20 liters cans The flushing process must be carried out at the maximum flow rate of each nozzle 36 LPM minimum At lower flow rates the evacuation of air in the hydraulic system will...
Page 27: ...alibration 3 OK Adjust Calibration 4 OK Check installation Replace meter defective No No No Yes Yes OK within acceptable tolerance limits Clean pump and nozzle filter Start Run FP until fuel comes out...
Page 28: ...80 99 70 100 99 90 100 20 100 10 100 40 100 30 Check the piston meter refer to section 4 2 Adjust piston meter by turning both adjustment screws in direction counter clockwise Example If the deviation...
Page 29: ...mponent Technical Manual TQM Meter for Fuel Dispensers Document Ref 942175 001 Rev 3 Page 4 1 CONTENTS 4 TROUBLESHOOTING 4 2 4 1 Blocked Piston Meter 4 2 4 2 Display Faults 4 3 4 3 External Leakage 4...
Page 30: ...Manual 4 TROUBLESHOOTING 4 1 Blocked Piston Meter Pressure in front of piston meter OK Meter exit line Meter correct NO NO NO YES YES YES Mechanism damaged Replace piston meter Gear out of adjustment...
Page 31: ...100 50 100 40 100 30 100 20 100 90 100 80 100 70 100 60 Positive display fault Stops out of adjustment Piston seized check the piston and piston seals Adjust the meter see section 3 7 Negative displa...
Page 32: ...common symptoms and possible solutions relating to external leakage problems Leakage through drive shaft replace drive shaft seal Leakage through adjustment screw replace adjustment screw O ring Leak...
Page 33: ...pensers Document Ref 942175 001 Rev 3 Page 5 1 CONTENTS 5 SPARE PARTS 5 2 5 1 Piston Meter Exploded View 5 2 5 2 TQM Meter Assemblies 5 4 5 3 Cylinder Cover Assembly 5 5 5 4 Collector Assembly 5 6 5 5...
Page 34: ...Page 5 2 Document Ref 942175 001 Rev 3 TQM Meter for Fuel Dispensers Component Technical Manual 5 SPARE PARTS 5 1 Piston Meter Exploded View...
Page 35: ...d Pins 4x20 Goupille Cannel e G6 4x20 908079 001 13 Plastic Spacer Washer Entretoise Plastique 908166 14 TQM Parallel Pin L 21mm Goupille Paral L 21mm TQM 908720 15 TQM Parallel Pin L 22 5mm Goupil Pa...
Page 36: ...inline assy Mes TQM MPE EC en ligne asm 948475 021 Meter TQM MPE TC in line assy Mes TQM MPE TC en ligne asm 948475 024 Meter TQM MPE TC TW in line assy Mes TQM MPE TC TW en ligne asm 948475 031 Meter...
Page 37: ...3 Cylinder Cover Assembly Item No Description D signation Fran ais Part No Comments 1 O Ring 9 12 x 3 53 Joint Torique 9 12 x 3 53 900050 091 2 Adjustment Spring Ressort de Vis Relage 908165 3 TQM Ad...
Page 38: ...er Bearing Palier Totalisateur 908162 5 Tote Drive Adaptator Adaptateur Sortie Totalisateur 908163 6 Totaliser Shaft Axe de Totalisateur 908164 7 Pulser MPT1 Cable Emetteur MPT1 Cable 941210 Pulser MP...
Page 39: ...ssembly Item No Description D signation Fran ais Part No Comments 1 Circlip Seeger Type AL48 Segment Seeger type AL48 908169 001 2 Holding Ring Bague de Maintien Piston 941941 3 Piston Seal TQM Joint...
Page 40: ...oller assy Gallet asm 908054 IGUS Bearing Bague IGUS 909953 001 Ethanol 3 Iglidur X fl Bush Iglidur X fl Bague 909954 002 4 Crank Shaft Holder Palier Vilebrequin 908056 5 Gear Wheel 36 Teeth Pignon 36...
Page 41: ...Document Ref 942175 001 Rev 3 Component Technical Manual TQM Meter for Fuel Dispensers This page is intentionally blank...
Page 42: ...For Technical manual enquiries contact author dundee tokheim com...
