Alfalaval Toftejorg MultiJet 25 User manual

Covering: Standard Machines
Machines delivered with ATEX Certification in accordance with Directive 2014/34/EU
TE91A615-EN6, First published: 2007-06
ESE02750-EN6 2016-07
Original manual
Instruction Manual
Alfa Laval Toftejorg™ MultiJet 25

Table of contents
The information herein is correct at the time of issue but may be subject to change without prior notice
1. EC/EU Declaration of Conformity .................................................................. 4
2. Safety .................................................................................................... 5
2.1. Important information ............................................................................. 5
2.2. Warning signs ..................................................................................... 5
3. Introduction ............................................................................................ 6
3.1. Introduction ........................................................................................ 6
3.2. Intended Use ...................................................................................... 6
3.3. Patents and Trademarks ......................................................................... 7
3.4. Marking ............................................................................................ 7
3.5. ATEX Marking ..................................................................................... 8
3.6. Quality System .................................................................................... 8
4. Installation .............................................................................................. 9
4.1. General Description ............................................................................... 9
4.2. Functioning ........................................................................................ 9
4.3. General Safety and Installation Instructions .................................................... 11
4.4. Special Conditions for Safe Use in accordance with ATEX Certification .................... 13
5. Operation ............................................................................................... 15
5.1. Normal operation ................................................................................. 15
5.2. Safety Precautions ................................................................................ 16
6. Maintenance ........................................................................................... 17
6.1. Preventive Maintenance .......................................................................... 17
6.2. Service and Repair of ATEX Certified Machines ............................................... 18
6.3. Maintenance Intervals and Service Kits ......................................................... 18
6.4. Tools ............................................................................................... 21
6.5. Disassembly ....................................................................................... 22
6.6. Reassembly ....................................................................................... 24
6.7. Replacement of Ball Races ...................................................................... 25
7. Trouble Shooting Guide .............................................................................. 26
8. Technical Data ......................................................................................... 28
9. Product Programme .................................................................................. 32
9.1. Standard Configurations ......................................................................... 32
9.2. Available Add-ons ................................................................................ 32
9.3. Available welding connections ................................................................... 33
10. Parts List and Drawing ............................................................................... 34
10.1.Assembly Drawing ................................................................................ 34
10.2.Reference List of Parts ........................................................................... 35
11. General information ................................................................................... 36
11.1.Service and Repair ............................................................................... 36
11.2.How to Order Spare Parts ....................................................................... 36
11.3.How to contact Alfa Laval Kolding A/S ......................................................... 36
12. Miscellaneous .......................................................................................... 37
12.1.Declaration of Conformity, EN 10474, sub clause 2.2 Test Report .......................... 37
12.2.ATEX - Special Conditions for Safe Use ........................................................ 39
3

1 EC/EU Declaration of Conformity
The Designated Company
Alfa Laval Kolding A/S
Company Name
Albuen 31, DK-6000 Kolding, Denmark
Address
[phone]
Phone No.
hereby declare that
Tank Cleaning Machine
Designation
Alfa Laval Toftejorg MultiJet 25
Type
From serial number 2016-0001 to 2030-99999
is in conformity with the following directive with amendments:
Machinery Directive 2006/42/EC
DS/EN ISO 12100:2011
The Pressure Directive 97/23/EC
According to its own volume and the rated pressure range, the product is regarded an Article 3, paragraph 3 Equipment
FDA 21CFR§177 and 174.6
Regulation (EC) 1935/2004
Equipment Explosive Atmospheres (ATEX) Directive 2014/34/EU
(Applicable for machine certified as category 1 and 2 component, see machine engraving)
DS/EN 13463-1:2009, DS/EN 13463-5:2011, DS/EN ISO/IEC 80079-34:2011, Annex A, paragraph A.5.3 Rotating machines
EC Type Examination Certificate no. Baseefa04ATEX0358X
Marking: II 1 GD c T140ºC
Marking: II 1 GD c T250ºCTamb0ºC to +200ºC
Baseefa Ltd., Certification body number 1180, Rockhead Business Park
Staden Lane, Buxton, Derbyshire SK17 9RZ, United Kingdom
The person authorised to compile the technical file is the signer of this document
Global Product Quality Manager
Pumps, Valves, Fittings and Tank Equipment Lars Kruse Andersen
Title Name Signature
ATEX Responsible Engineer Denniz Høxbroe
Title Name Signature
Kolding 2016-07-01
Place Date
(This Declaration of Conformity replaces Declaration of Conformity dated 2015-11-01)
4

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
Indicates important information to simplify or clarify procedures.
2.2 Warning signs
General warning:
5

3 Introduction
3.1 Introduction
Based on more than 30 years’ experience from practical tank cleaning and production, the Alfa Laval Toftejorg MultiJet 25 has
been developed to meet the highest demands for efficiency, reliability and hygiene within food and beverage, pharmaceutical
and biochemical industry.
This manual has been prepared as a guide for installing, operating and maintaining your Alfa Laval Toftejorg tank cleaning
machine. Should you require further assistance, our Technical Sales Support department and worldwide net of sales offices are
pleased to help you. Please quote the type, article and serial numbers with all of your enquiries; this helps us to help you.
The type and serial number are placed on the body of the tank cleaning machine.
Get the best and most economical performance from your tank cleaning machine. Insufficient preventive maintenance means
poor performance, unscheduled stops, shorter lifetime and extra costs. Good preventive maintenance on the contrary means
good performance, no unscheduled stops and superior total economy.
If the Alfa Laval Toftejorg MultiJet 25 stops rotating unintentionally within the warranty period, please return the machine to Alfa
Laval. Please do not try to fix any mechanical problems before shipping.
Important
information:
Before installing the machine and setting it into operation, carefully read the General Safety and Installation
Instructions (page 11) and the special conditions for safe use in accordance with ATEX Certification Directive
2014/34/EU (page 13) and take all necessary precautions according to your application and local regulations.
Note: The illustrations and specifications contained in this manual were effective at the date of printing. However, as continuous
improvements are our policy, we reserve the right to alter or modify any unit specification on any product without prior notice or
any obligation.
The English version of the instruction manual is the original manual. We make reservations in regard to possible mistranslations in
language versions of the instruction manual. In case of doubt, the English version of the instruction manual applies.
3.2 Intended Use
The end-user should verify:
- that the tank cleaning machine is in conformity with respect to tank, vessel or container size in which it is used.
- that the construction materials (both metallic and non-metallic) are compatibility with product, flushing media, cleaning
media, temperatures and pressure under the intended use.
6

3 Introduction
3.3 Patents and Trademarks
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.
Alfa Laval Kolding A/S. All rights reserved.
The Alfa Laval logotype is a trademark or a registered trademark of Alfa Laval Corporate AB. "Toftejorg" is a trademark
or registered trademark of Alfa Laval. The Alfa Laval Toftejorg™ MultiJet 25 product has patents in the EPO member states
(EP 0 560 778), in the US (5333630) and in other countries and has a new patent pending (PCT/DK/2007/000062). Other
products or company names mentioned herein may be the trademarks of their respective owners. Any rights not expressly
granted herein are reserved.
3.4 Marking
Alfa Laval tank claning machines are all marked to allow for recognition og type of machine, machine name, serial number and
manufacturing address. The marking is placed on the body of the tank cleaning machine.
MJ25
Serial number explanation
Machines supplied with or without normal
documentation:
yyyy-xxxxx: serial number
yyyy: year
xxxxx: 5 digit sequential number
4108-0011
Marking area
7

3 Introduction
3.5 ATEX Marking
The Alfa Laval Toftejorg MultiJet 25 is certified as category I component. The certification is carried out by the notified body
Baseefa, who has issued the certificate no. 04ATEX0358X. The marking on the ATEX certified Alfa Laval Toftejorg MultiJet 25
is as follows:
MJ25_ATEX
Serial number explanation:
Machines supplied with or without normal documentation:
yyyy-xxxxx: serial number
yyyy: year
xxxxx: 5 digit sequential number
Changes to the machine are not allowed without approval by the person responsible for the ATEX 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 Directive) is no longer valid.
Important ATEX
information:
Also see page 18 regarding special conditions for repair of ATEX certified machines.
3.6 Quality System
The Alfa Laval Toftejorg MultiJet 25 is designed in accordance with the EHEDG design guidelines for sanitary design of
processing equipment. It is produced according to Alfa Laval Kolding’s ISO-9001 international Standard certified quality system.
All parts are made from certified material and all non-metal parts are made from FDA complaint materials.
8

4 Installation
4.1 General Description
The Alfa Laval Toftejorg MultiJet 25 is a media driven and media lubricated tank cleaning machine. No lubricating substances
such as oil, grease etc. are used. All materials are selected for contact with food, and the machine is self-cleaning i.e. all
internal and external surfaces are cleaned.
For use in explosive hazard zones the ATEX version can be used, provided it is installed according to safety instructions
in local regulations.
4.2 Functioning
The flow of cleaning fluid into the machine passes through a turbine, which accordingly is set into rotation. Through a gear
set and a driver tube, the turbine rotation is transmitted to the Cleaner Head.
The combined motion of the machine Body and the Nozzles ensures a fully indexed tank cleaning coverage. After 5 5/8
revolutions of the Hub cover with Nozzles (5 3/8 revolutions of the machine Body), one coarse cleaning pattern is laid out
on the tank surface and the first cycle has been made. During the following cycles, this pattern is repeated 7 times, each
of which is displaced, and the pattern gradually becomes more dense. Finally, after 8 cycles - a total of 45 revolutions of
the Hub Cover with Nozzles (43 revolutions of the machine Body), a complete cleaning pattern has been laid out, and
the first pattern is repeated.
This is illustrated below for a spherical tank with the machine placed in the centre:
First cycle Second cycle Third cycle Forth cycle
The number of cycles needed to perform a proper cleaning depends on type of soilage, position of the tank cleaning machine,
cleaning procedure, cleaning temperature and cleaning agent.
For substances that are easily mobilised, i.e. are easy to remove, one cycle could be sufficient while in cases of more heavy
soilage (high viscous, sticky substances, etc.) a more dense pattern/more cycles are needed.
The rotation speed of the turbine depends on the flow rate through the machine. The higher the flow rate, the higher the
speed of rotation. In order to control the RPM of the machine for a wide range of flow rates, the machine has different
turbines according to the Nozzle size.
9

4 Installation
Apart from the main flow flushing the gear and the
Hub, and thereafter forming the jets through the
Nozzles, fluid is flushed through all internal areas,
through Bevel gear, Ball bearings and gaps between
moving parts and finally also used for cleaning of
the outside surfaces of the machine. The areas
behind the Screws on the Cone are cleaned through
small spray holes behind the Screws. In the bottom
oftheBody,adrainageholeispresenttoensure
self-draining. This self-draining is only ensured, if the
machine is installed in upright position.
TD523415
For all versions:
For devices with tapered thread connections to the down pipe,
it is recommended that you secure the connection in a manner
appropriate for the application. Subject to the intended use
environment and any inhouse user requirements or policies, an
adhesive such as Loctite No. 243 or equivalent could be used.
Other methods could be acceptable and subject to customer
preference.
4109-0043
A
B
C
D
A: Down pipe
B: Welding adapter
C: Seal PTFE
D: Seal EPDM
10

4 Installation
4.3 General Safety and Installation Instructions
The tank cleaning machine should be installed in vertical position (upright or upside down). It is recommended to install a filter
in the supply line in order to avoid large particles, scale etc. to clog inside the machine. It is essential to avoid fine solid
particles (e.g. fine sand) in cleaning fluid as they increase wear considerably.
In general, a filter with 3 mm holes is recommended in the supply line. In case of fine solid particles below 500 µm in the
cleaning fluid, choose filter size accordingly.
In order to sperate the CIP system from the process it is recommended to install a shutoff valve close to the machine inlet.
This also prevents back-flow of liquid from the tank through the machine in case the cleaner head is submerged and
there is an over-pressure inside the tank. The installation and operation shall be made in such a way that the self-draining
of the machine is ensured.
It is recommended that the fluid valve fitted is of a type that prevents hydraulic shocks, which may cause severe damage to
the Alfa Laval Toftejorg MultiJet 25 and/or the entire installation. Ideally, a frequency controlled pump with a ramp function for
start-up is used for supplying the cleaning liquid.
Before connecting the machine onto the system, all supply lines and valves should be flushed in order to remove
foreign particles.
The machine should be screwed tightly onto its supporting supply line using a 36 mm flat jawed spanner (tool No. TE81B040)
on the flats machined on the inlet Cone.
During handling and installation handle the machine with care in order not to damage the surface finishes of the machine.
The Alfa Laval Toftejorg MultiJet 25 machine has been tested at the factory before shipping. You can check that the machine
is in operating condition by blowing compressed air into the inlet, while holding the machine by the cone and verify that the
rest of the machine rotates evenly. if resistance is recognised, the machine should be disassembled in order to localise the
cause or returned to the nearest Alfa Laval Service Centre.
Upon arrival check that the machine is in operation condition by inserting a flathead Screwdriver in top of turbine shaft and
easily turn Turbine shaft anti-clockwise. If any resistance is recognised, the machine should be disassembled in order to
localise the cause.
For devices with tapered thread connections to the down pipe, it is recommended that you secure the connection in a
manner appropriate for the application. Subject to the intended use environment and any inhouse user requirements or
policies, an adhesive such as Loctite No. 243 or equivalent could be used. Other methods could be acceptable and
subject to customer preference.
Note: Do not try to turn the nozzle head by hand, since this may damage the Gear. The Nozzle head can be turned
by blowing compressed air through the inlet connection.
11

4 Installation
Note: The machine shall be installed in accordance with national regulations for safety and other relevant regulations and
standards. Precautions shall be made to prevent starting of the cleaning operation, while personnel are inside the tank or
otherwise can be hit by jets from the nozzles. In EU-countries the complete system must fulfil the EU-machine Directive and
depending of application, the EU-Pressure Equipment Directive, the EU-ATEX Directive and other relevant Directives and shall
be CE-marked before it is set into operation.
Warning: Precautions shall be made to prevent starting of the cleaning operation, while personnel are inside the
tank or otherwise can be hit by jets from the nozzles.
Warning: If the machine is used in potential explosive atmospheres, tapes or joint sealing compounds which are
electrical insulators must not be used on threads or joints, unless an electrical connection is otherwise
established to ensure an effective earthing. In addition, connecting pipe work, must be electrically
conductive and earthed to the tank structure. The resistance between the nozzles and the tank
structure should not exceed 20,000 Ohm. This is essential to avoid the build-up of static electricity on
the machine. For further information see IEC/TS 60079-32-1:2013, guidance and recommendations
for the avoidance of hazards due to static electricity.
12

4 Installation
4.4 Special Conditions for Safe Use in accordance with ATEX Certification
Directive 2014/34/EU
ATEX Warning: The unit may be operated, in a hazardous area, only when filled with the process fluid.
ATEX Warning: If a medium other than the process fluid is passed through the equipment, the flow must not be high enough
to cause the equipment to operate. If this cannot be avoided, the rotor must be removed or secured to
prevent rotation.
ATEX Warning: The maximum permitted process fluid temperature is 95°C, with an ambient temperature range of 0°C to
140°C.
Working temperature max.:
The maximum permitted process fluid temperature and ambient temperature when the machine is operating
is 95°C.
Ambient temperature:
When the machine is not operating, the maximum permitted ambient temperature is 140°C.
ATEX Warning: The high temperature version of the Alfa Laval Toftejorg TJ20G machine has a maximum permitted process
fluid temperature of 160°C, with an ambient temperature range of 0°C to 200°C.
Working temperature max.:
The maximum permitted process fluid temperature and ambient temperature when the machine is operating
is 160°C.
Ambient temperature:
When the machine is not operating, the maximum permitted ambient temperature is 200°C.
ATEX Warning: The maximum permitted process fluid pressure is 8 bar.
ATEX Warning: The unit must not be operated in a vessel having an enclosed volume of greater than 100m3.
Tanks larger than 100 m³:
To use Tank Cleaning Machines in tanks larger than 100m³ is possible under certain conditions.
It is necessary to know the current factors such as tank size, cleaning solvent and product.
Additives can be used in the cleaning solvent, or, for example, the tank can be filled with nitrogen. The basic
rules are described in the guide "IEC/TS 60079-32-1:2013“.
Following a guidance document such as "IEC/TS 60079-32-1:2013“ to establish safe use of machinery and
process is the users own responsibility and is not covered by the ATEX certification for this product.
13

4 Installation
ATEX Warning: The unit must be effectively earthed at all times when in use.
ATEX Warning: 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.
In addition to the above mentioned precautions relating to the ATEX guidelines Directive 2014/34/EU, the Safety
Precautions on page 11 must be observed.
14

5Operation
5.1 Normal operation
Cleaning Media
Use only media compatible with Stainless Steel AISI 316L, SAF 2205, PVDF or PEEK, PFA HP and EPDM. Normal detergents,
moderate solutions of acids and alkalics are acceptable. Aggressive chemicals excessive concentrations of chemicals at
elevated temperatures, as well as certain hypochlorids should be avoided. If in doubt, contact your local Alfa Laval sales office.
Note: PEEK is not resistant to concentrated sulphuric acid.
Product
In cases where the machine is submerged in, or in other ways exposed to, product the compatibility between stainless steel
AISI 316L, SAF 2205, PVDF or PEEK, PFA and EPDM and the product must be considered carefully.
Note: EPDM swells significantly exposed to fatty materials
Pressure
Avoid hydraulic shocks. Increase pressure gradually. Do not exceed 8 bar inlet pressure. Recommended inlet pressure: 5-7
bar. High pressure in combination with high flow rate increase consumption of wear parts. High pressure also reduces
the cleaning effect.
Steam cleaning pressure:
ATEX Warning: If stream cleaning is done through the machine, the steam pressure must not cause the machine to rotate.
Draining:ATEX Warning: If the machine is drained using compressed air, then the compressed air pressure must not cause the
machine to rotate.
Temperature:
The maximum recommended prcess fluid temperature is 95oC. The recommended ambient temperature range is 0oC to 140oC.
In accordance with the ATEX specifications regarding special conditions for safe use, see page 13.
Atmosphere/surface temperature:
ATEX Warning: In potentially explosive atmospheres, the temperature must not exceed the maximum surface temperature
according to the temperature class for the combustible gas or liquid.
Steam cleaning:
ATEX Warning: Tanks with capacities greater than 100 m3that could contain a flammable atmosphere should not be steam
cleaned, as steam issuing from a nozzle could contain charged droplets.
Tanks smaller than this may be steam cleaned providing that: the steam nozzles and other metal parts of
the system are reliably earthed and grounded to the tank structure.
After Use Cleaning
After use flush the machine with fresh water. Cleaning media should never allow to dry or settle in the system due to possible
"salting out" or "scaling" of the cleaning media. If cleaning media contains volatile chloride solvents, it is recommended not to
flushwithwaterafter use, as this might create hydrochloric acid.
15

5Operation
5.2 Safety Precautions
The machine is intended for use inside a tank only. As peak velocity of main jets reaches 40 m/s, The Alfa Laval Toftejorg
MultiJet 25 must not be operated in open air or when tank is open.
ATEX Warning: Hot chemicals and steam under pressure may be used for cleaning and sterilising. Protect against scalding
and burning. Never tamper with or try to open clamps or other connections while system is in operation.
Make sure that system is de-pressurised and drained before disassembly.
The cleaning jets impinging the tank surface are a source of noise. Depending on pressure and distance to the tank walls,
noise level may reach up to 85 DB.
ATEX Warning:In case potentially explosive liquids are used, precautions should be taken against incidental creation of an
explosive mixture with oxygen in the tank atmosphere.
ATEX Warning: Tanks may contain poisonous/hazardous products or products which represent an envionmetal or safety
risk. Never open tank and dismount the machine without checking previous tank contents and necessary
precautions.
16

6 Maintenance
6.1 Preventive Maintenance
Following the Alfa Laval Preventive Maintenance Guidelines and using the Alfa Laval Service Kits ensures the availability of
your equipment at all times and enables you to plan your operating budget and your downtime. The risk of unscheduled
breakdowns due to component failure is virtually eliminated and in the long term your operating costs are reduced.
Alfa Laval Tank Cleaning Equipment Service Kits contain all you need. They comprise genuine Alfa Laval spare parts,
manufactured to the original specifications.
The recommended preventive maintenance program is based on tank cleaning machines working in average conditions.
However, a tank cleaning machine, exposed to heavy soiling and recirculation CIP liquid containing abrasives and/or
particulates, needs more frequent attention than one exposed to light/no soiling and recirculation with ordinary CIP liquid.
Alfa Laval Kolding A/S recommends you to adjust the maintenance program to suit the cleaning task in hand. Contact
your local Alfa Laval sales office for discussion.
For further information regarding Alfa Laval Service Kits and service intervals, see paragraph 6.3 Maintenance Intervals and
Service Kits on page 18 of this manual or the Spare Parts Manual.
Note: Handle the Alfa Laval Toftejorg MultiJet 25 with care. Take proper action to protect surfaces from being damaged.
Always use only proper tools and the Alfa Laval Toftejorg MultiJet 25 standard tool kit (page 21). Never use force, hammer or
pry components together or apart. Always perform all assembly/disassembly steps in the order described in this manual.
Clean all surfaces prior to assembling. Especially take care of the mating surfaces. Work in a clear well-lighted work area.
According to “Regulation (EC) No 1935/2004 - Article 17” effective from 27th of October 2006, producers of food shall ensure
traceability of the materials and articles intended to come into contact with foodstuffs. It is recommended that a traceability
system is setup for replacement of wear parts and spare parts. This makes it possible to identify into which machine a given
wear part or spare part has been inserted.
17

6 Maintenance
6.2 Service and Repair of ATEX Certified Machines
All service and repair of ATEX certified machines can be performed by Alfa Laval Kolding A/S, Kolding, Denmark or by an Alfa
Laval service center approved by Alfa Laval Kolding A/S.
In order to ensure compliance with the ATEX regulations and keep the machine ATEX certification valid the service
or repair must be performed by an authorized person with knowledge of the ATEX requirements and regulations.
All spare parts must be original Alfa Laval spare parts and the repair or service must be done according to the
instructions in the related manual.
ATEX
Warning:
If a customer wishes to carry out service or repair himself, it is the responsibility of the repair shop to ensure
that the ATEX requirements are met in any way possible. After performing service or repair, the repair shop thus
carries the full responsibility for traceability of all relevant documents in order to ensuring the retention of the
ATEX certification of the machine.
6.3 Maintenance Intervals and Service Kits
It is recommended that the wear parts are check every 500 working hours for machine working under normal conditions. There
is a Minor and a Major service kit for the Alfa Laval Toftejorg MultiJet 25 (see the following pages).
Service intervals
500 hour 500 hour 500 hour
Service Kit:
TE20G299 or
Major Service Kit
TE20G288
Service Kit:
TE20G299 or
Major Service Kit
TE20G288
Service Kit:
TE20G299 or
Major Service Kit
TE20G288
Every 500 working hours
1. Disassemble machine as described on the following pages.
2. Clean material build-up and deposits from internal parts with Scotch-brite, S-Ultra-fine, eventually chemical media and
fine abrasive cloth.
3. Check Slide bearing (position 14, page 34) for wear. If end face of Slide bearing is worn more than 1 mm into Slide bearing, it
should be replaced.
4. Check bearing for Turbine shaft top (position 24, page 34) in Cone and Body. If holes are worn oval to a max. diameter
of more than 10.4 mm, Bearings should be replaced. Thickness of collar is to be min. 3.5 mm for Bearing in Body. If the
Bearings are loose in a horizontal direction, the bearings should be replaced.
5. Check Carrier bearing (position 15.3, page 34). If worn oval to a max. diameter of more than 15.8 mm, it should be replaced.
Note: Timely replacement of Slide bearings and bearings for Turbine shaft prevents costly damage to the gearbox.
18

6 Maintenance
6. Check Planet wheels (position 15.4 and 15.5, page 34) while still mounted in planet gear carrier (15.6). They must rotate
easily on Shafts. If restriction or much clearance on Shafts is felt, Planet wheels should be dismounted for inspection of
bearing bushes and Shafts for Planet wheel (15.2). Max diameter of holes: 6.2 mm. Check tooth wear. If replacement is
necessary, Planet wheels must be replaced as a pair.
7. Check unrestricted rotation of Ball bearings. Inspect for build-up of foreign material on Stem nut (position 9, page 34) and
Hub nut (18), in Ball retainers (10) and Ball races.
8. Inspect the nozzle vanes for foreign objects (e.g. product pulp, threads, etc.) and if necessary clean with care – damaging
nozzles (or fouled nozzles) ll decrease the throw length of the machine. Clean using compressed air or tweezers.
9. Replace washer (22, page 34)
10. Assemble machines as described in the following pages.
11. Check that the machine is in operating condition by inserting flathead Screwdriver in top of Turbine shaft, and easily turn
Turbine shaft anti-clockwise. If any resistance is recognised, the machine should be disassembled in order to localise the
cause.
12. If Ball races (16.2 and 17.2) on Stem and Hub as well as Stem/Hub nut w. Ball race (9 and 18) and Washer (22) are heavily
worn, they should be replaced. Also the Ball retainer w. balls (position 10, see page 25) should be replaced if heavily worn.
Apart from the parts specifically mentioned above, all the remaining wear parts should regularly be inspected for wear. Which
parts that are wear parts appear from Reference List of Parts, page 35.
19

6 Maintenance
Minor Service Kit for Alfa Laval Toftejorg MultiJet 25
Article no. TE20G299
Position no. Item no. Denomination Qty.
3 TE20G549 Bearing for Turbine shaft 1
14 TE20G558 Slide bearing 1
15.3 TE20G545 Bearing for Planet Gear carr. 1
15.4 TE20G535 Planet wheel I 1
15.5 TE20G536 Planet wheel II 1
22 TE20G584 Washer 1
24 TE20G548 Bearing for Turbine shaft top 1
Major Service Kit for Alfa Laval Toftejorg MultiJet 25
For all machines with serial number below 0604 001 please contact your local Alfa Laval office for correct service kit.
Article no. TE20G288
Position number Item no. Denomination Qty.
3TE20G549 Bearing for Turbine shaft 1
9TE20G571 Stem nut with ball race 1
10 TE20G318 Ball retainer with balls 2
14 TE20G558 Slide bearing 1
15.1 TE51C102 Cotter pin 2
15.3 TE20G545 Bearing for Planet Gear carr. 1
15.4 TE20G535 Planet wheel I 1
15.5 TE20G536 Planet wheel II 1
17.2 TE20G574 Ball race 2
18 TE20G573 Hub nut with ball race 1
22 TE20G584 Washer 1
24 TE20G548 Bearing for Turbine shaft top 1
General recommendations
•Always read the instruction and maintenance manuals carefully before undertaking the service.
•Always replace all parts included in the Service Kit.
•Prior to assembly/disassembly clean all tools and fixtures to ensure that scratches and marks and trace of soil/corrosion
from tools are avoided.
•Do not scratch or damage the surfaces of the machine.
•Always place components on soft material
Check surfaces for product residues and clean all parts before assembly. Assembly of the machine is described on the
following pages.
20