Alfalaval Toftejorg MultiJet 65 User manual

Instruction Manual
Toftejorg™ MultiJet 65
IM-TE91A780-EN1
Date of issue: November 3, 2010

Instruction Manual, Toftejorg MultiJet 65 Page 1
IM-TE91A780-EN1
Contents
Contents ................................................................................................................................... 1
Introduction............................................................................................................................... 3
Intended Use ............................................................................................................................ 4
Patents and trademarks ........................................................................................................... 4
General Description.................................................................................................................. 5
Functioning .......................................................................................................................................... 5
Standard Configurations ...................................................................................................................... 7
Options ................................................................................................................................................ 7
Technical Data.......................................................................................................................... 8
Machine with 2 nozzles........................................................................................................................ 8
Machine with 4 nozzles...................................................................................................................... 12
Installation and Normal Operation.......................................................................................... 16
General Installation Instructions......................................................................................................... 16
Method for tightening the nozzles ...................................................................................................... 16
Normal Operation............................................................................................................................... 18
General Safety Precautions ............................................................................................................... 18
Maintenance and repair .......................................................................................................... 19
Recommended Service Intervals ....................................................................................................... 19
Preventive Maintenance Guidelines and Service Kits........................................................................ 20
Maintenance intervals and Service Kit selection ................................................................................ 20
Top Assembly .................................................................................................................................... 24
Bottom Assembly ............................................................................................................................... 26
Hub Subassembly.............................................................................................................................. 28
Stem Subassembly ............................................................................................................................ 30
Gear Subassembly ............................................................................................................................ 32
Replacement of Collar Bushes........................................................................................................... 34
Replacement of Ball races ................................................................................................................. 36
Replacement of Main Collar............................................................................................................... 38
Tools....................................................................................................................................... 40
Trouble Shooting Guide ......................................................................................................... 42
Toftejorg MultiJet 65 with 2 nozzles ....................................................................................... 44
Reference List of Parts ...................................................................................................................... 44
Cross Sectional Drawing.................................................................................................................... 45
Toftejorg MultiJet 65 with 4 nozzles ....................................................................................... 46
Reference List of Parts ...................................................................................................................... 46
Cross Sectional Drawing.................................................................................................................... 47
Service Kits............................................................................................................................. 48
How to Order Spare Parts ...................................................................................................... 48
Claim Procedure..................................................................................................................... 48
How to contact Alfa Laval Tank Equipment A/S..................................................................... 48
Service Card........................................................................................................................... 49
Claim Report - Working Conditions ........................................................................................ 50

Instruction Manual, Toftejorg MultiJet 65 Page 3
IM-TE91A780-EN1
Introduction
This manual has been prepared as a guide for the persons who will be operating and maintaining your
tank cleaning machine. The key to long life for your tank cleaning machine will always be a system of
carefully planned maintenance; you will appreciate that a tank cleaning machine which has a rough
and dirty job to do will need more frequent attention than one working in ideal conditions.
It is in your own interest to get the best and most economical performance from your tank cleaning
machine. Neglect of maintenance means poor performance, unscheduled stoppages, shorter life and
expense. Good maintenance means good performance; no unscheduled stoppages and better total
economy.
You will find the information contained in this manual simple to follow, but should you require further
assistance, our Customer Service Department and world-wide net of Distributors will be pleased to
help you. Please quote the type and serial number with all your enquiries; this will help us to help you.
The type and serial number are placed on the gear house of the tank cleaning machine.
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.
© 2010 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. Alfa Laval Corporate AB will enforce its rights
related to this document to the fullest extent of the law, including the seeking of criminal prosecution.

Page 4 Instruction Manual, Toftejorg MultiJet 65
IM-TE91A780-EN1
Intended Use
It is to be verified by the end-user:
- that the tank cleaning machine is in conformity with respect to tank, vessel or container size in
which it will be 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.
Patents and trademarks
This Instruction Manual is published by Alfa Laval Tank Equipment A/S without any warranty.
Improvements and changes to this Instruction Manual may at any time be made by Alfa Laval Tank
Equipment A/S without prior notice. Such changes will, however, be incorporated in new editions of this
Instruction Manual.
© Alfa Laval Tank Equipment A/S, 2010. 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 Tank Equipment A/S. Other products or company
names mentioned herein may be the trademarks of their respective owners. Any rights not expressly
granted herein are reserved.

Instruction Manual, Toftejorg MultiJet 65 Page 5
IM-TE91A780-EN1
General Description
The Toftejorg MultiJet 65 is a media driven and media lubricated tank cleaning machine. As it is self
lubricating, there are no lubricating substances such as oil, grease etc. in the machine which need to
be regularly changed.
Functioning
The flow of the cleaning fluid into the machine passes through a turbine, which is set into rotation. The
turbine rotation is through a gearbox transformed into a combined horizontal rotation of the machine
body and a vertical rotation of the nozzles.
Machines with 2 nozzles
The combined motion of the machine body and the nozzles ensures a fully indexed tank cleaning
coverage. After 11¼ revolutions of the Hub with nozzles (10 3/4revolutions of the machine body), one
coarse cleaning pattern is laid out on the tank surface. During the following rounds, this pattern is
repeated 3 times, each of which is displaced ¼ of the mesh in the pattern. After a total of 45 revolutions
of the Hub with nozzles (43 revolutions of the machine body), a complete cleaning pattern has been
laid out, and the first pattern is repeated.
1st cycle 2nd cycle 3rd cycle 4th cycle

Page 6 Instruction Manual, Toftejorg MultiJet 65
IM-TE91A780-EN1
General Description (continued)
Machines with 4 nozzles
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 with nozzles (5 3/8 revolutions of the machine body) one
coarse cleaning pattern is laid out on the tank surface. During the following rounds, this pattern is
repeated 7 times, each of which is displaced 1/8 of the mesh in the pattern. After a total of 45 revolutions
of Hub with nozzles (43 revolutions of the machine body), a complete cleaning pattern has been laid out,
and the first pattern is repeated.
First cycle Full pattern
General for both 2 and 4 nozzle machines
The speed of rotation of the turbine depends on the flow rate through the machine. The higher the flow
rate is, the higher the speed of rotation will be. In order to control the RPM of the machine for a wide
range of flow rates, the efficiency of the turbine can be changed (50% - 100% - 0% Turbine/Inlet
guide).
Apart from the jet flow through the nozzles, fluid is leaking through the top of the machine, at the hub
and through the bottom cover. The leakages between the moving parts at the top and at the hub are
cleaning the gabs and thus preventing build-up of material that might cause extra friction. The flow
through the bottom cover is due to the fact that the machine is media lubricated, and that accordingly a
flow through the gearbox is needed.

Instruction Manual, Toftejorg MultiJet 65 Page 7
IM-TE91A780-EN1
General description (continued)
Standard Configurations
Machines without flange for direct mounting on extension pipe (requires special flange on extension
pipe):
Machine with 2 nozzles
Connection
Nozzles (mm)
(1"thread conn.) Article No.
2½” BSP
2 x ø15
2 x ø17
2 x ø19
2 x ø21
TE22E124
TE22E126
TE22E128
TE22E130
2½” NPT
2 x ø15
2 x ø17
2 x ø19
2 x ø21
TE22E134
TE22E136
TE22E138
TE22E140
Machine with 4 nozzles
Connection
Nozzles (mm)
(3/4” thread conn.) Article No.
2½” BSP
4 x ø11
4 x ø12
4 x ø13
4 x ø14
TE23M002
TE23M003
TE23M004
TE23M005
2½” NPT
4 x ø11
4 x ø12
4 x ø13
4 x ø14
TE23M012
TE23M013
TE23M014
TE23M015
The machine is equipped with a clutch in the hub, which gives the possibility of rotating by hand the
nozzles, when the machine is to be lifted out through a tank opening.
Options
Machines with Nozzle extensions for longer throw length can be supplied as an option. Same article
no. with index no. -22, e.g. TE23Mxxx-22.
Machines with Nozzle extensions and E-gear, TE23Mxxx-62.
Machines with PEEK wear parts, TE23Mxxx-06.

Page 8 Instruction Manual, Toftejorg MultiJet 65
IM-TE91A780-EN1
Technical Data
Machine with 2 nozzles
Weight of machine : 16 kgs (35,3 lb)
Working pressure : 2-12 bar (30-175 psi)
Recommended inlet pressure : 5-10 bar (75-150 psi)
Working temperature max. : 95°(200°F)
Materials : Stainless steel, carbon, polymer
Principal dimensions in mm

Instruction Manual, Toftejorg MultiJet 65 Page 9
IM-TE91A780-EN1
Technical data (continued)
Machine with 2 nozzles
Flow rate
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
5 6 7 8 9 10 11 12
Flow rate
[m³/h]
[bar]
MJ 65
Inlet pressure
2xø21
2xø19
2xø17
2xø15
2 Nozzles

Page 10 Instruction Manual, Toftejorg MultiJet 65
IM-TE91A780-EN1
Technical data (continued)
Machine with 2 nozzles
Throw length
Note: Throw lengths are measured as max. horizontal throw length at static condition. Vertical throw
length upwards is approx. 1/3 less. Effective throw length varies depending on jet transverse speed over
surface, substance to be removed, cleaning procedure and agent.
The inlet pressure has been taken immediately before the machine inlet. In order to achieve the
performance indicated in the curves, the pressure drop in the supply lines between pump and machine
must be taken into consideration.
Option: The Toftejorg MultiJet 65 can be supplied with nozzle extensions and E-gearing for longer
throw length.
20
25
30
35
40
45
50
56789101112
Throw Lenght
Max
[m]
[bar]
MJ 65
Inlet pressure
2xø21
2xø19
2xø17
2xø15
2 Nozzles

Instruction Manual, Toftejorg MultiJet 65 Page 11
IM-TE91A780-EN1
Technical data (continued)
Machine with 2 nozzles
Cleaning Time, f. Complete Pattern (= 4 cycles)
30
35
40
45
50
55
60
65
70
75
80
5 6 7 8 9 10 11 12
rpm
[sec]
[bar]
MJ 65
Inlet pressure
2xø21
2xø19
2xø17
2xø15
2 Nozzles

Page 12 Instruction Manual, Toftejorg MultiJet 65
IM-TE91A780-EN1
Technical data (continued)
Machine with 4 nozzles
Weight of machine : 16 kgs (35,3 lb)
Working pressure : 2-12 bar (30-175 psi)
Recommended inlet pressure : 5-10 bar (75-150 psi)
Working temperature max. : 95°(200°F)
Materials : Stainless steel, carbon, polymer
Principal dimensions in mm

Instruction Manual, Toftejorg MultiJet 65 Page 13
IM-TE91A780-EN1
Technical data (continued)
Machine with 4 nozzles
Flow rate
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
5 6 7 8 9 10 11 12
Flow rate
[m³/h]
[bar]
MJ 65
Inlet pressure
4xø14
4xø13
4xø12
4 Nozzles
4xø11

Page 14 Instruction Manual, Toftejorg MultiJet 65
IM-TE91A780-EN1
Technical data (continued)
Machine with 4 nozzles
Throw length
Note: Throw lengths are measured as max. horizontal throw length at static condition. Vertical throw
length upwards is approx. 1/3 less. Effective throw length varies depending on jet transverse speed
over surface, substance to be removed, cleaning procedure and agent.
The inlet pressure has been taken immediately before the machine inlet. In order to achieve the
performance indicated in the curves, the pressure drop in the supply lines between pump and
machine must be taken into consideration.
Option: The Toftejorg MultiJet 65 can be supplied with nozzle extensions and E-gearing for longer
throw length.
20,00
25,00
30,00
35,00
40,00
45,00
50,00
5 6 7 8 9 10 11 12
Throw Lenght
Max
[m]
[bar]
MJ 65
Inlet pressure
4xø14
4xø13
4xø12
4xø11
4 Nozzles

Instruction Manual, Toftejorg MultiJet 65 Page 15
IM-TE91A780-EN1
Technical data (continued)
Machine with 4 nozzles
Cleaning Time, f. Complete Pattern (= 4 cycles)
30
35
40
45
50
55
60
65
70
75
80
5 6 7 8 9 10 11 12
rpm
[sec]
[bar]
MJ 65
Inlet pressure
4xø14
4xø13
4xø12
4 Nozzles
4xø11

Page 16 Instruction Manual, Toftejorg MultiJet 65
IM-TE91A780-EN1
Installation and Normal Operation
General 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 to clog inside the
machine. Before connecting the machine into the system, all supply lines and valves should be flushed
to remove foreign matter.
It is recommended to secure the bolted connection between machine and down pipe against loosening
to vibrations. Use Locking wire, nabs or equivalent for the actual application.
Note: The machine shall be installed in accordance with national regulations for safety and other
relevant regulations and standards. 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.
The machine as delivered has been tested at the factory before shipping. For transportation reasons,
the nozzles have been screwed off after the test. In order to secure the nozzles against falling off due to
vibrations and other external strains it is important that the nozzles are tightened properly after mounting. If
not, the nozzles may be blown off during tank cleaning and cause severe damage on tank, valves and pump.
This is especially important if machines are fixed installed in tanks and vessels within the transportation
sector in trucks, railcars and onboard ships.
Normally it is sufficient to tighten the nozzles with the specified torque. However depending on the
application and local policies an extra securing may be preferred.
Subject to the intended use environment and any inhouse user requirements or policies, a liquid threadlocker
such as Loctite No. 243 or equivalent could be used. Other methods could be acceptable and subject to
customer preference. For detailed instruction on pre-cleaning and application of the product carefully follow
the instruction on the used locking system.
Method for tightening the nozzles
1. Clamp machine firmly in a vice: Place machine on top of vice with Hub w. nozzles down wards
as illustrated on the figure. Clamp on the Hub. To protect machine use rubber jaws on the
vice.

Instruction Manual, Toftejorg MultiJet 65 Page 17
IM-TE91A780-EN1
Installation and Normal Operation(continued)
With 2 nozzles:
2. Set torque wrench at the specified tightening
torque.
3. Tighten nozzle with the torque
1.
Recommended tightening torque: 75 Nm
With 4 nozzles:
2. Set torque wrench at the specified tightening
torque.
3. Hold one nozzle with flat spanner to
counteract while tightening the
opposite nozzle with the torque
wrench.
2.
Recommended tightening torque: 75 Nm
3. Check that the machine is in operating condition by inserting 3/16" hex Screwdriver (tool No.
TE134A) in screw in top of Turbine shaft and easily turn Turbine shaft clockwise. If any resistance
is recognised, the machine should be disassembled to localise the cause.
Rubber jaw
mounted upside
down
Protect with rubber
pad

Page 18 Instruction Manual, Toftejorg MultiJet 65
IM-TE91A780-EN1
Installation and Normal Operation(continued)
Normal Operation
Cargo and Cleaning Media
Use only media compatible with stainless steel, polymer and carbon. Normal detergent, moderate
solutions of acis and alkalics will be acceptable. Agressive chemicals, excessive concentrations of
chemicals at elevated temperatures, as well as certain dissolvents and hypochlorids should be
avoided. If you are in doubt, contact the local Alfa Laval Tank Equipment distributor.
After Use Cleaning
After use flush the machine with fresh water. Cleaning solutions should never be allowed to dry or set-
up in the system due to possible "salting out" or "scaling" of the cleaning ingredient. If cleaning media
contains volatile chloride solvents, it is recommended not to flush with water after use, in case this can
create hydrochloric acid.
Pressure
Avoid Hydraulic shocks. Put on pressure gradually. Do not exceed 12 bar inlet pressure.
Recommended inlet pressure appears from Technical Data (page 8-13). High pressure in combination
with high flow rate will increase consumption of wear parts.
General Safety Precautions
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 CENELEC R044-001 Safety of Machinery, guidance and
recommendations for the avoidance of hazards due to static electricity.
Electrical equipment such as magnetic valves and electric actuators must not be installed in Ex-zones
without type approval and marking, corresponding to the EX-class in question.