Alfa Laval Toftejorg TZ-67 Instruction Manual
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Alfa Laval Toftejorg TZ-67 Instruction Manual

Alfa Laval Toftejorg TZ-67 Instruction Manual

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Instruction Manual
Alfa Laval Toftejorg
Covering:
Standard machines
Machines delivered with ATEX/IECEx Certification in accordance with Directive 2014/34/EU
First published: January 1, 1988
ESE01796-EN13
Original manual
TM
TZ-67
2019-07

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Summary of Contents for Alfa Laval Toftejorg TZ-67

  • Page 1 Instruction Manual Alfa Laval Toftejorg TZ-67 Covering: Standard machines Machines delivered with ATEX/IECEx Certification in accordance with Directive 2014/34/EU First published: January 1, 1988 ESE01796-EN13 2019-07 Original manual...

  • Page 3: Table Of Contents

    9.1. Standard configurations ................9.2. Standard options ................. 9.3. Available add-ons ................. 10. Parts list and drawing, service kits and tools ............ 10.1. Alfa Laval Toftejorg TZ-67 ................ 10.2. Service kits ..................10.3. Tools ....................11. General information ................... 11.1. Service and repair...
  • Page 4 Table of contents The information herein is correct at the time of issue but may be subject to change without prior notice 11.2. How to order spare parts ................ 11.3. How to Contact Alfa Laval Kolding A/S ............

  • Page 5: Ec/Eu Declaration Of Conformity

    Phone No. hereby declare that Tank Cleaning Machine Designation Alfa Laval Toftejorg TZ-67 Type From serial number 2019-0001 to 2030-99999 is in conformity with Machinery Directive 2006/42/EC and the following harmonized standard is used: DS/EN ISO 12100:2011 Safety of Machinery - Risk Assessment is in conformity with (Ex / ATEX) Directive 2014/34/EU and the following harmonized standards are used: EN ISO 80079-36:2016, EN ISO 80079-37:2016, DS/EN ISO/IEC 80079-34:2011, Annex A, paragraph A.5.3 Rotating machines...

  • Page 6: Safety

    2 Safety Unsafe practices and other important information are emphasized in this manual. Warnings are emphasized by means of special signs. Always read the manual before using the tank cleaning machine! 2.1 Important information WARNING Indicates that special procedures must be followed to avoid serious personal injury. CAUTION Indicates that special procedures must be followed to avoid damage to the tank cleaning machine NOTE...

  • Page 7: Introduction

    This Instruction Manual is published by Alfa Laval without any warranty. Improvements and changes to this Instruction Manual may at any time be made by Alfa Laval without prior notice. Such changes will, however, be incorporated in new editions of this Instruction Manual.

  • Page 8: Marking

    5 digit sequential number 3.5 ATEX/IECEx marking The Alfa Laval Toftejorg TZ-67 is certified as category I component. The ATEX certification is carried out by the Notified Body SGS Fimko Oy, who has issued the certificate no. Baseefa10ATEX0188X. The IECEx certification is carried out by the Certification Body SGS Baseefa Ltd., who has issued the certificate no. IECEx BAS xx.xxxxX.

  • Page 9: Atex/Iecex Temperature Class And Code

    ATEX/IECEx marking on the equipment: II 1G Ex h IIC 85°C…175°C Ga II 1D Ex h IIIC T85°C…T140°C Da 3.7 Quality system The Alfa Laval Toftejorg tank cleaning machines are produced according to Alfa Laval Kolding´s ISO 9001 international Standard certified quality system.

  • Page 10: Installation

    4.1 General description The Toftejorg TZ-67 is a media driven and media lubricated tank cleaning machine. As it is self lubricating, there is no lubricating substances such as oil grease etc. in the machine which needs to be regularly changed.

  • Page 11: General Safety And Installation Instructions

    4 Installation TZ-67 4.3 General safety and installation instructions The tank cleaning machine should be installed in a vertical position (upright or upside down). It is recommended to install a filter with mesh size of max. 3 mm in the supply line in order to avoid large particles to clog inside the machine. Before connecting the machine into the system, all supply lines and valves should be flushed to remove foreign matter.
  • Page 12 4 Installation TZ-67 1. Clamp machine firmly in a vice. Protect machine with rubber pad under the machine and use rubber jaws on the vice. Mount jaws upside down to ensure firm grip on the machine. Set torque wrench at the specified tightening torque. 2.

  • Page 13: Specific Conditions For Safe Use In Accordance With Atex/Iecex Certification

    4 Installation TZ-67 4.4 Specific conditions for safe use in accordance with ATEX/IECEx certification Directive 2014/34/EU NOTE Explosion protection type is constructional safety “c”. Warning: Operated in a hazardous area The unit my be operated in a hazardous area only when completely filled with cleaning fluid/steam. If a medium other than the cleaning fluid/steam is passed through the equipment the flow must not be high enough to cause the equipment to operate.
  • Page 14 4 Installation TZ-67 4.4 Specific conditions for safe use in accordance with ATEX/IECEx certification Warning: Max. permitted steaming temperature The maximum permitted steam temperature through the machine and ambient temperature is 140°C. Warning: Steaming tanks larger than 100 m³ Tanks with capacities larger than 100 m³ that could contain a flammable atmosphere should not be steam cleaned, as steam cleaning tanks produces an electrostatically charged mist.
  • Page 15 4 Installation TZ-67 4.4 Specific conditions for safe use in accordance with ATEX/IECEx certification Warning: Process generated electrostatic The user must address the electrostatic hazards generated from the process of the equipment in accordance with guidance document IEC/TS 60079-32-1:2013. Warning: Electrostatically charged liquid Liquids can become electrostatically charged when they move relative to contacting solids or the spraying of liquids can also create a highly charged mist or spray.

  • Page 16: Operation

    PEEK is not resistant to concentrated sulfuric acid. Normal detergents, moderate solutions of acids and alkalics will be acceptable. Aggressive chemicals, excessive concentrations of chemicals at elevated temperatures as well as hydrochlorides should be avoided. If you are in doubt, contact your local Alfa Laval sales office. Pressure Avoid hydraulic shocks.

  • Page 17: Safety Precautions

    TZ-67 5.2 Safety precautions The machine is intended for use inside a tank only. As peak velocity of main jets reaches 40 m/sec., the Alfa Laval Toftejorg TZ-67 must not be operated in open air or when tank is open.

  • Page 18: Maintenance

    Changes to the machine are not allowed without approval by the person responsible for the ATEX/IECEx certification at Alfa Laval. If changes are made – or spare parts other than Alfa Laval original spare parts are used - the EC Type Examination certification (the ATEX/IECEx Directive) is no longer valid.

  • Page 19: Preventive Maintenance

    We trust that you will adjust your maintenance programme to suit. Always use only proper tools. Use Toftejorg TZ-67 standard tool kit. Never force, hammer or pry components together or apart. Always perform all assembly/disassembly steps in the order described in this manual.

  • Page 20: Top Assembly

    6 Maintenance TZ-67 6.3 Top assembly Disassembly 1. Remove Screws (15). Loosen with Key (tool No. TE134) and unscrew with Screwdriver (tool No. TE134A). 2. Lift off Nipple (1). 3. Remove Guide/Guide ring (2). The Guide has a groove in the outer diameter. The Guide is easily lifted out of the Stem by means of two ordinary Screwdrivers inserted into the groove.
  • Page 21 6 Maintenance TZ-67 Top Assembly TD523353...

  • Page 22: Bottom Assembly

    6 Maintenance TZ-67 6.4 Bottom assembly Disassembly 1. Turn machine upside down. 2. Remove Screws (15) and Spring Washer (16) from Bottom cover (30). 3. Remove Bottom cover (30). 4. Remove Screws (15) in Bearing cover (14). Carefully push out Turbine shaft (6) from opposite end. Do not try to hammer out Turbine shaft, since this can damage Slide bearing.
  • Page 23 6 Maintenance TZ-67 Bottom Assembly TD523354...

  • Page 24: Hub Assembly

    6 Maintenance TZ-67 6.5 Hub Assembly Disassembly 1. Remove Nozzles (20). Nozzles are untightened with a wrench on the faces of the Nozzles. 2. Remove Screws (16), and Spring washers (16) and Hub cover (19). 3. Draw out Hub (21) together with Ball retainer with balls (24) and Bevel gear (18). 4.
  • Page 25 6 Maintenance TZ-67 Hub Assembly TD523355...

  • Page 26: Stem Assembly

    6 Maintenance TZ-67 6.6 Stem Assembly Disassembly 1. Place machine in upside-down position. 2. Remove Screws (15) in Gear wheel (7). To prevent rotation of Stem (3) mount two screws in two holes opposite one another in BIG end of Stem. Place Stem in a vice held by the heads of the two screws. 3.
  • Page 27 6 Maintenance TZ-67 Stem Subassembly TD523356...

  • Page 28: Gear Subassembly

    6 Maintenance TZ-67 6.7 Gear Subassembly Disassembly 1. To make a backstop, remount Turbine shaft (6) with Slide bearing (28) into Gear frame (29). Mount Bearing cover (14) with Screws (15). 2. Hold Turbine shaft (6) against 1st stage Worm wheel (33) with one hand and loosen Screws (15) in Pinion (9) and Horizontal shaft (27) with the other hand.
  • Page 29 6 Maintenance TZ-67 Reassembly 1. Mount Slide bearing (28) carefully on Turbine shaft (6) and secure with Washer (13), Spring washer (16) and Screw (15). Hold Turbine shaft in a vice or with wrench on driver faces and tighten. 2. Push Slide bearing (28) for Horizontal shaft (27) into Gear frame (29) and fix Bearing cover (14) with Screws (15). Tighten crosswise.

  • Page 30: Replacement Of Collar Bushes

    6 Maintenance TZ-67 6.8 Replacement of collar bushes Replacement of Collar Bushes 1. Place Gear frame (29) upside down with a firm support under the flange. Use for instance jaws of a vice. Do not clamp on machined surfaces. With Pusher (tool No. TE81B033, see page 43) knock out Collar bush. 2.

  • Page 31: Replacement Of Ball Races

    6 Maintenance TZ-67 6.9 Replacement of ball races In body A. With big end downwards knock several times Body with bearings (26) hard against firm wooden support until Ball race (26.3) drops out. B. If it is not possible to knock out Ball race in this way , it is necessary first to screw out Main collar lower (26.2) – see page 32.

  • Page 32: Replacement Of Main Collars

    6 Maintenance TZ-67 6.10 Replacement of main collars Although normally exposed to very limited wear, it is possible to replace Main collars (26.1 and 26.2) in Body. The procedure to do this is described below. Main collar upper 1. Place Body (26) in a vice upright position. Do not clamp on machined faces. Insert tool (see page 43) into Main collar upper (26.1).

  • Page 33: Trouble Shooting Guide

    7 Trouble shooting guide TZ-67 Slow rotation or failure of machine to rotate Possible Causes Action No or insufficient liquid flow a). Check if supply valve is fully open b). Check if inlet pressure to machine is correct c). Check supply line and filter for restriction/clogging d).

  • Page 34: Technical Data

    8 Technical data TZ-67 Weight of machine: 6.5 kgs (14,3 lb) Working pressure: 2-12 bar (30-175 psi) Recommended inlet pressure: 3-8 bar (45-120 psi) Working temperature max.: 95°C (200°F) Ambient temperature: 0 - 140°C (95°C - 140°C when not operated) Stainless steel AISI 316/AISI 316L, PFA, A4, ACO212CF, Materials: PEEK, PA6G...
  • Page 35 8 Technical data TZ-67 Flow rate Inlet pressure A: m3/h B: USgpm C: nozzle sizes D: psi E: bar...
  • Page 36 8 Technical data TZ-67 Throw length Max. static Effective TD523321 Throw length Inlet pressure A: m B: ft D: psi E: bar C: nozzle sizes Note: Throw lengths are measured as horizontal throw length at static condition. Vertical throw length upwards is approx. 1/3 less.
  • Page 37 8 Technical data TZ-67 Cleaning Time, f. complete Pattern (=8 cycles) Inlet pressure A: min. B: RPM of machine body C: nozzle sizes D: psi E: bar...

  • Page 38: Product Programme

    9 Product programme TZ-67 9.1 Standard configurations Standard Configurations for Toftejorg TZ-67 Nozzles (mm) Connection Turbine/ Inlet Guide Article No. (1/2" thread conn.) 4 x ø6 TE21C108 100% Thread 4 x ø7 TE21C110 1 ½" NPT, 4 x ø7 TE21C128 Male di: ø38mm...

  • Page 39: Standard Options

    9 Product programme TZ-67 9.2 Standard options Special options are available with hub deflector for direction of cleaning 180° upwards or downwards: 180° upwards: Standard article No. 04 180° downwards Standard article No. 03 Nozzles (mm) Article No. Connection Turbine/ Inlet Guide (1/2"...

  • Page 40: Parts List And Drawing, Service Kits And Tools

    10 Parts list and drawing, service kits and tools TZ-67 10.1 Alfa Laval Toftejorg TZ-67 TD523358...
  • Page 41 See page 39 for more information on available add-ons. Please refer to the Spare Part Manual for information on item numbers and materials. The Spare Part Manual is available from the online Alfa Laval product catalogue Anytime or the Close at hand spare part catalogue.

  • Page 42: Service Kits

    Major Service Kit TE55H010 TE55H010 TE55H010 Please refer to the Spare Part Manual for information on item numbers and materials. The Spare Part Manual is available from the online Alfa Laval product catalogue Anytime or the Close at hand spare part catalogue.

  • Page 43: Tools

    10 Parts list and drawing, service kits and tools TZ-67 10.3 Tools Standard Tool kit for Toftejord TZ-67, Article No. TE81B050 Description Tool No. Hex Key for Screw 1 pcs. TE134 2 pcs. TE134A Hex Screwdriver for Screw Available on request: Description Tool No.
  • Page 44 10 Parts list and drawing, service kits and tools TZ-67 Sketch of tools for replacement of Main collars TE81B129: Tool for upper collar TE81B130: Tool for lower collar...

  • Page 45: General Information

    TZ-67 11.1 Service and repair Upon every return of a product, no matter if for modifications or repair, it is necessary to contact your local Alfa Laval office to guarantee a quick execution of your request. You will receive instructions regarding the return procedure from your local Alfa Laval office. Be sure to follow the instructions closely.
  • Page 46 © Alfa Laval Corporate AB This document and its contents is owned by Alfa Laval Corporate AB and protected by laws governing intellectual property and thereto related rights. It is the responsibility of the user of this document to comply with all applicable intellectual property laws. Without limiting any rights related to this document, no part of this document may be copied, reproduced or transmitted in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise), or for any purpose, without the expressed permission of Alfa Laval Corporate AB.

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