Scanjet SC 40RT User manual

#SC 40RT 06
Instruction Manual
SC 40RT
Scanjet Marine AB
SALES OFFICE
Södra Långebergsgatan 36
P.O. Box 9316
SE-400 97 Göteborg, Sweden
Telephone [phone]
Telefax [phone]
E-mail offi[e-mail]
Web www.scanjet.se
FACTORY
Törnedalsgatan 1
P.O. Box 2
SE-275 21 Sjöbo, Sweden
Telephone [phone]
Telefax [phone]
E-mail [e-mail]
VAT SE556291242701
Designer
Date Date
Drawer
Surface treatment
Weight
Note
Dimension
Material
General Tolerances
Tolerance ISO 2768-m
Gen. surface
N9
This document is our property and shall not without our permission in writing be altered, copied, used for manu- facturing or communicated to any person or company.
Drawing no. / Ritningsnr.
Format
SC40RT
A4
Scale
SC40RT
1:7
SC40RT
Denna handling är vår egendom och får ej utan vårt skriftliga medgivande ändras, kopieras, användas för tillverkning eller delges annan person eller firma.
SS-ISO 2768-m for machined parts (30)-120=
0.3
0.5-3=
0.1 (120)-315=
0.5
(3)-30=
0.2 315)-1000=
0.8
P03.1
Törnedalsgatan 1, 275 21 Sjöbo
SWEDEN
ML
Revision
05-04-19
E
No.
Revision note
Date
Sign.
Qty.
Ins.
gram
Designer
Date Date
Drawer
Surface treatment
Weight
Note
Dimension
Material
General Tolerances
Tolerance ISO 2768-m
Gen. surface
N9
This document is our property and shall not without our permission in writing be altered, copied, used for manu- facturing or communicated to any person or company.
Drawing no. / Ritningsnr.
Format
SC40RT
A4
Scale
SC40RT
1:5
SC40RT
Denna handling är vår egendom och får ej utan vårt skriftliga medgivande ändras, kopieras, användas för tillverkning eller delges annan person eller firma.
SS-ISO 2768-m for machined parts (30)-120=
0.3
0.5-3=
0.1 (120)-315=
0.5
(3)-30=
0.2 315)-1000=
0.8
P03.1
Törnedalsgatan 1, 275 21 Sjöbo
SWEDEN
ML
Revision
05-04-19
E
No.
Revision note
Date
Sign.
Qty.
Ins.
gram

#SC 40RT 06 – 101027Page 2 of 44
This Manual Applies for the Following Products:
Type Date
Scanjet SC 40RT 2010-10-27
Scanjet SC 300 2010-10-27
Spare Parts Department
Contact Information
Read “11. How to Order Spare Parts” on page 28
Scanjet Marine AB
Törnedalsgatan 1
P.O. Box 2
SE-275 21 Sjöbo, Sweden
Telephone +46416 513 100
Telefax +46416 511 656
E-mail [e-mail]
This manual is intended to assist in the handling and operation of the
Scanjet SC 40RT Tank Cleaning System. Continuous product improvement
is the policy of Scanjet Marine AB and we reserve the right to alter the
specifications at any time without prior notice.

#SC 40RT 06 – 101027 Page 3 of 44
Contents
1. Introduction .................................................................................................. 4
2. Safety Instructions ........................................................................................ 5
3. General Description ...................................................................................... 6
4. Technical Data .............................................................................................. 7
4.1. Specifications ..................................................................................................7
4.2. Dimensions .....................................................................................................8
4.3. Deck and Inlet Flanges....................................................................................9
5. Performance Data ....................................................................................... 10
6. Installation Instructions ............................................................................... 12
7. Operation ................................................................................................... 13
7.1. Starting Up ....................................................................................................13
7.2. Cleaning Procedure for Solidifying Cargoes ..................................................13
7.3. During Operation ..........................................................................................14
7.4. Closing Down ...............................................................................................15
7.5. Pickling / Passivation Procedure ....................................................................16
7.6. Calculation of Cleaning Time ........................................................................17
7.7. Speed Adjustment .........................................................................................20
8. Maintenance .............................................................................................. 21
8.1. Preventive Maintenance ................................................................................21
8.2. Service Kit ....................................................................................................22
8.3. Service Interval .............................................................................................23
9. Removal of Location Sleeve/Inlet Housing .................................................. 26
10. Troubleshooting........................................................................................ 27
11. How to Order Spare Parts ......................................................................... 28
12. Exploded Drawing View - Drive Unit SC 300 .....................................................29
13. Exploded Drawing View - Gun Unit SC 40RT ....................................................30
14. Exploded Drawing View - Valve and Connection ..............................................31
15. Spare Parts List - SC 40RT ...................................................................................32
16. Basic Settings ............................................................................................ 36
17. Service Kit Contents .................................................................................. 39
18. Spare Part Kit ............................................................................................ 41
19. Tool Kit ..................................................................................................... 42
20. Service Card ............................................................................................. 43

#SC 40RT 06 – 101027Page 4 of 44
1. Introduction
Scanjet model SC 40RT is a tank cleaning
machine especially developed for cleaning
of cargo and slop tanks onboard chemical/
product carriers. The size, construction and
cleaning requirements of these tanks are
design criteria, which have been evaluated
prior to installation in your application.
SC 40RT tank cleaning machine consists
of two main parts; a gun unit that is fixed
installed on the tank and a turbine driven
drive unit. The cleaning procedure will start
by opening the valve for cleaning media.
The drive unit will now rotate the bottom
housing, also forcing the nozzle housing
to rotate around its own axis because of
the gear system. This creates a criss-cross
cleaning pattern on the tank walls. When
the cleaning procedure is finalized the
valve is to be closed.
This manual has been prepared as a guide
for persons who will be operating and
maintaining the tank cleaning machine.
The key for long tank cleaning machine
life will always be carefully planned
maintenance, the tank cleaning machine
is actually doing a rough and dirty job for
you. With proper maintenance the Scanjet
SC 40RT will keep servicing you for many
years.
Drive
Unit
Gun
Unit
Designer
Date Date
Drawer
Surface treatment
Weight
Note
Dimension
Material
General Tolerances
Tolerance ISO 2768-m
Gen. surface
N9
This document is our property and shall not without our permission in writing be altered, copied, used for manu- facturing or communicated to any person or company.
Drawing no. / Ritningsnr.
Format
SC40RT
A4
Scale
SC40RT
1:7
SC40RT
Denna handling är vår egendom och får ej utan vårt skriftliga medgivande ändras, kopieras, användas för tillverkning eller delges annan person eller firma.
SS-ISO 2768-m for machined parts (30)-120=
0.3
0.5-3=
0.1 (120)-315=
0.5
(3)-30=
0.2 315)-1000=
0.8
P03.1
Törnedalsgatan 1, 275 21 Sjöbo
SWEDEN
ML
Revision
05-04-19
E
No.
Revision note
Date
Sign.
Qty.
Ins.
gram

#SC 40RT 06 – 101027 Page 5 of 44
2. Safety Instructions
• If the machine is used in potentially explosive atmospheres then 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 grounding. In addition, connection pipe work must be
electrically conductive and grounded to the tank structure. The resistance
between the nozzle and the tank structure should not exceed 20 000
Ohm. This is important in order to avoid any build up of static electricity
in the machine. For further information see CENELEC R044-001 Safety of
Machinery, guidance and recommendations for the avoidance of hazards
due to static electricity.
• When the equipment is operating in potentially explosive atmospheres,
measures have to be taken to verify that the tank is inert at all times during
cleaning operation. This is to avoid sparks and possible explosions since fluids
moving at high velocities through air causes electrostatic build up in the
media. As an extra precaution the cleaning media could be made conductive.
• The machine should be installed in accordance with national regulations for
safety and other relevant regulations and standards.
• Precautions should be made to prevent starting of the tank cleaning
operation, while personnel are inside the tank or otherwise can be hit by
jets from the nozzle.
• In EU-countries the complete system have to comply with EU-machine
directive and should be CE-marked. In North America consult Underwriters
Laboratory for any specific regulatory needs relative to the entire CIP (Clean
In Place) System.
• Earmuffs should always be used when operating machine.
• Safety goggles should be used when opening cofferdam plug.
• Be careful not to drop tank cleaning machine/equipment when lifting and
carrying. Dropping the machine could cause serious injuries. Never stand
under the machine during mounting.
• When handling the tank cleaning machine, never lift machine by the nozzle.
• The equipment may only be used for tank cleaning operations as described
in this manual.
• The equipment has not been assessed as a safety related device as referred
to in directive 94/9EC Annex II, clause 1.5
Always follow these instructions before taking the SC 40RT into service!

#SC 40RT 06 – 101027Page 6 of 44
3. General Description
Cleaning media comes from the supply line and enter through the inlet housing,
passing over a turbine which drives the drive unit via a magnetic coupling,
continue through the main pipe to the nozzle and then out in the tank.
The drive unit will rotate a shaft inside the machine, the
turning shaft. The turning shaft is connected to the bottom
housing that rotates the nozzles via a gear system. The
nozzles will hereby clean the tank in a criss-cross pattern.
The rotation speed is controlled by the rotation speed of
the turbine and could easily be set to desired speed, see
“7.7. Speed Adjustment” on page 20.
The rotations of the nozzles are indicated on the top nut
visible through the cofferdam or on the top shaft on top
of the drive unit.
The rotating nozzles will create a cleaning pattern as per
below on the vertical tank-walls. After one cycle a cleaning
pattern will be created as per fig 1. After four cycles the
pattern will be completed as per fig 2. After this the
pattern will be repeated.
A full pattern is created when the main body has rotated 47 turns. With a
rotation speed of 2 rpm will a full pattern take approx. 23,5 min. Note that the
time is depending on the actual setting of the turbine and water pressure. One
cycle will take about 6 minutes.
Cleaning of tanks is a process depending on a number of factors; the soilage of
the tank, distance to tank walls, cleaning procedure and cleaning agent. All these
factors are deciding for the number of cycles that needs to be run.
Fig 1. After one cycle Fig 2. Full pattern
Designer
Date Date
Drawer
Surface treatment
Weight
Note
Dimension
Material
General Tolerances
Tolerance ISO 2768-m
Gen. surface
N9
This document is our property and shall not without our permission in writing be altered, copied, used for manu-
facturing or communicated to any person or company.
Drawing no. / Ritningsnr.
Format
SC40RT
A4
Scale
SC40RT
1:7
SC40RT
Denna handling är vår egendom och får ej utan vårt
skriftliga medgivande ändras, kopieras, användas för
tillverkning eller delges annan person eller rma.
SS-ISO 2768-m for machined parts
(30)-120=
0.3
0.5-3=
0.1 (120)-315=
0.5
(3)-30=
0.2 315)-1000=
0.8
P03.1
Törnedalsgatan 1, 275 21 Sjöbo
SWEDEN
ML
Revision
05-04-19
E
No.
Revision note
Date
Sign.
Qty.
Ins.
SC40RT
gram

#SC 40RT 06 – 101027 Page 7 of 44
4. Technical Data
4.1. Specifications
Approx weight
Machine, L=1 m : 38 kg (84 lb)
Per additional meter of mainpipe : 10 kg (22 lb)
Drive unit : 12 kg (26 lb) (composite 5 kg / 11 lb)
Material
Inlet housing and mainpipe : AISI 316L / SS2348 / WST 1.4404
Other parts : Makers’ standard
Service space : Min 350 mm radius from centre
of deck flange for handling and
service.
Rotation speed : 1-2 rpm (might differ with climate,
in cold climate the machine might
rotate slower)
Flow : 7-55 m3/h (30-240 USgpm)
Inlet pressure : 0,6-1,2 MPa (6-12 Bar, 85-175 psi)
Recommended pressure : 0,8 MPa (8 Bar, 115 psi)
Max working temperature : 95ºC (200ºF)

#SC 40RT 06 – 101027Page 8 of 44
4.2. Dimensions
178,2
272,7
L = Machine Length
20
xxx
182
56 130
150
Min.
opening
(2 nozzles)
380
Optional 2" Ball Valve
Max. rotation
400
(Nozzles: 2 x
6-11 mm)
Max. rotation
492
(NozzlS: 2 x
12-16 mm)
240
Min. opening
(4 nozzles)
Max. rotation
357
(Nozzles: 4 x
6-12 mm)
178,2
272,7
Scale
1:7

#SC 40RT 06 – 101027 Page 9 of 44
ØB1
ØA1
ØC1
Designer
Date Date
Drawer
Approved
Date
Appr. Prod.
Date
Note
Dimension
Material
General Tolerances
Tolerance ISO 2768-m
Gen. surface
N9
This document is our property and shall not without our permission in writing be altered, copied, used for manu-
facturing or communicated to any person or company.
Drawing no. / Ritningsnr.
Format
Rörstöd Ø60
A4
Scale
30118-xx
1:5
Pipe Support Ø60
Denna handling är vår egendom och får ej utan vårt
skriftliga medgivande ändras, kopieras, användas för
tillverkning eller delges annan person eller rma.
SS-ISO 2768-m for machined parts
(30)-120=
0.3
0.5-3=
0.1 (120)-315=
0.5
(3)-30=
0.2 315)-1000=
0.8
P01
Törnedalsgatan 1, 275 21 Sjöbo
SWEDEN
ML
Revision
06-08-25
E
No.
Revision note
Date
Sign.
Qty.
Ins.
No sharp edges
Marine
30118-xx
Deck flange
Flange type A1 B1 C1 xxx
Scanjet Standard Ø245 Ø215 Ø18x8 192
PN16 DN150 Ø285 Ø240 Ø23x8 192
JIS 5K 150A Ø265 Ø230 Ø19x8 192
ANSI 6” 150lb Ø279 Ø241 Ø23x8 192
Inlet flange
Flange type Inlet housing no. A2 B2 C2
2” Valve flange 30111-00
PN16 DN40 30111-01 Ø150 Ø110 Ø18x4
PN16 DN50 30111-02 Ø165 Ø125 Ø18x4
JIS 10/16K 40A 30111-05 Ø140 Ø105 Ø19x4
JIS 10K 50A 30111-06 Ø155 Ø120 Ø19x4
JIS 16K 50A 30111-07 Ø155 Ø120 Ø19x8
JIS 10K 65A 30111-08 Ø175 Ø140 Ø19x4
JIS 16K 65A 30111-09 Ø175 Ø140 Ø19x8
ANSI 2” 150lb 30111-21 Ø152,4 Ø120,6 Ø19x4
ØA2
ØB2
ØC2
Designer
Date Date
Drawer
Surface treatment
Weight
Note
Dimension
Material
General Tolerances
Tolerance ISO 2768-m
Gen. surface
N9
This document is our property and shall not without our permission in writing be altered, copied, used for manu-
facturing or communicated to any person or company.
Drawing no. / Ritningsnr.
Format
SC40RT
A4
Scale
SC40RT
1:5
SC40RT
Denna handling är vår egendom och får ej utan vårt
skriftliga medgivande ändras, kopieras, användas för
tillverkning eller delges annan person eller rma.
SS-ISO 2768-m for machined parts
(30)-120=
0.3
0.5-3=
0.1 (120)-315=
0.5
(3)-30=
0.2 315)-1000=
0.8
P03.1
Törnedalsgatan 1, 275 21 Sjöbo
SWEDEN
ML
Revision
05-04-19
E
No.
Revision note
Date
Sign.
Qty.
Ins.
SC40RT
gram
4.3. Deck and Inlet Flanges

#SC 40RT 06 – 101027Page 10 of 44
5. Performance Data
Performance data: The table below shows the flow and effective jet length
(radius) for each combination of inlet pressure and nozzle diameter. Other
nozzles and maximum jet length available upon request.
Supply pressure MPa (Bar)
0,6 (6) 0,8 (8) 1,0 (10) 1,2 (12)
Nozzle size Flow
[m³/h]
Jet
length
[m]
Flow
[m³/h]
Jet
length
[m]
Flow
[m³/h]
Jet
length
[m]
Flow
[m³/h]
Jet
length
[m]
2 x Ø6mm 7 7 8,5 7 9,3 8 10 9
2 x Ø7mm 10 10 11 11 13 12 13,5 13
2 x Ø8mm 11,5 13 14 14 15,5 15 17 16
2 x Ø10mm 19 16 22 17 25 18 27 19
2 x Ø12mm 28 18 30 19 34 20 36 21
2 x Ø14mm 34 20 38 21 42 22 45,5 24
2 x Ø16mm 40 19 44 20 48 21 53 22

#SC 40RT 06 – 101027 Page 11 of 44
Flow versus pressure
The inlet pressure has been measured at the machine inlet. In order to achieve
the performance indicated in the curves, pressure drop in supply lines must be
taken into consideration.
6 7 8 9 10 11 12
0
5
10
15
20
25
30
35
40
45
50
55
2 x Ø6 mm
2 x Ø7 mm
2 x Ø8 mm
2 x Ø10 mm
2 x Ø12 mm
2 x Ø14 mm
2 x Ø16 mm
100 120 140 160
90 110 130 150 170
0
22
44
66
88
110
132
154
176
198
220
242
m
3
/h
USgpm
psi
bar

#SC 40RT 06 – 101027Page 12 of 44
6. Installation Instructions
General Installation Instructions: SC 40RT is designed to be installed in a
vertical upright position. However, the machine may operate horizontally or in
any desired position according to order configurations. The gun unit is tailor-
made for each specific tank in respect to size of nozzle, length of gun and
connection.
Supply Line: It is recommended to install a filter in the supply line in order
to avoid large particles lodging inside the machine. All supply lines should be
flushed to remove dirt and particles before connecting the machine to the
system. Scanjet will not take any responsibility for rough dirt and particles in the
supply line, causing malfunction to the machine.
Cleaning Media: Only media compatible with the materials listed on the
reference list of parts for your model should be used, see “4. Technical Data”
on page 7. Regarding passivation, read chapter “7.5. Pickling / Passivation
Procedure” on page 16.
After Use Cleaning: Depending on the type of cleaning that is being performed
and the type of cleaning solution used, a procedure for after use flushing of the
cleaning system should be developed for your application. In general, a fresh
water flush is recommended after each cleaning.
Pressure: Hydraulic shocks may damage the system. In order to avoid shocks
increase pressure gradually from 0 to maximum operating pressure over 5-7
seconds. Do not exceed 12 Bar (175 PSI) inlet pressure. Higher pressure in
combination with higher flow rates will increase consumption of wear parts.
WARNING: If the machine is used in potentially explosive
atmospheres then tapes or joint sealing compounds, which
are electrical insulators, must not be used on threads or
joints, unless an electrical connection is otherwise estab-
lished to ensure an effective grounding. In addition, connec-
tion pipe work must be electrically conductive and ground-
ed to the tank structure. This is important in order to avoid
any build up of static electricity in the machine.

#SC 40RT 06 – 101027 Page 13 of 44
7. Operation
7.1. Starting Up
1. Check strainer for free flow, remove all particles (A)
2. Remove protective cover. Remove the drainage plug under the drive unit
and drain it
3. Open the inlet valve (A) slowly to start the machine
4. Make sure the top nut is rotating,
check through the cofferdam (B)
5. Remount the cofferdam plug
7.2. Cleaning Procedure for Solidifying Cargoes
• During transport of cargo, sediments might be created in the bottom of the
tank. The tank cleaning machine must be blown with air/nitrogen.
• Start the tank cleaning machine at low pressure and make sure it is rotating.
Let the machine slowly rotate one revolution, check the top nut through the
cofferdam.
• Raise the pressure to working pressure.
NOTE! If the machine is
started to fast, the magnetic
coupling will release and the
valve must be completely
closed prior to restart
B
A
Designer
Date Date
Drawer
Surface treatment
Weight
Note
Dimension
Material
General Tolerances
Tolerance ISO 2768-m
Gen. surface
N9
This document is our property and shall not without our permission in writing be altered, copied, used for manu- facturing or communicated to any person or company.
Drawing no. / Ritningsnr.
Format
SC40RT
A4
Scale
SC40RT
1:5
SC40RT
Denna handling är vår egendom och får ej utan vårt skriftliga medgivande ändras, kopieras, användas för tillverkning eller delges annan person eller firma.
SS-ISO 2768-m for machined parts (30)-120=
0.3
0.5-3=
0.1 (120)-315=
0.5
(3)-30=
0.2 315)-1000=
0.8
P03.1
Törnedalsgatan 1, 275 21 Sjöbo
SWEDEN
ML
Revision
05-04-19
E
No.
Revision note
Date
Sign.
Qty.
Ins.
gram
NOTE! Watch hands and eyes when removing the cofferdam plug
in case of leakage, use protection goggles and gloves

#SC 40RT 06 – 101027Page 14 of 44
7.3. During Operation
The cofferdam plug should be
mounted during cleaning at all
times. Would there be any leakage
at the tank cleaning machine the
cofferdam plug prevent the cleaning
media from leaking outside the
machine.
If leakage is detected seals inside
the machine have to be changed.
NOTE! That leakage at the nozzle
housing is normal and necessary
to fl ush the Tefl on bearings. Dur-
ing cold water rinsing the leakage is
considerably higher then during hot
water rinsing.
Designer
Date Date
Drawer
Surface treatment
Weight
Note
Dimension
Material
General Tolerances
Tolerance ISO 2768-m
Gen. surface
N9
This document is our property and shall not without our permission in writing be altered, copied, used for manu-
facturing or communicated to any person or company.
Drawing no. / Ritningsnr.
Format
SC40RT
A4
Scale
SC40RT
1:7
SC40RT
Denna handling är vår egendom och får ej utan vårt
skriftliga medgivande ändras, kopieras, användas för
tillverkning eller delges annan person eller rma.
SS-ISO 2768-m for machined parts
(30)-120=
0.3
0.5-3=
0.1 (120)-315=
0.5
(3)-30=
0.2 315)-1000=
0.8
P03.1
Törnedalsgatan 1, 275 21 Sjöbo
SWEDEN
ML
Revision
05-04-19
E
No.
Revision note
Date
Sign.
Qty.
Ins.
SC40RT
gram
A

#SC 40RT 06 – 101027 Page 15 of 44
7.4. Closing Down
When the cleaning operation is fi nalized the following should be done.
1. Depending on the type of cleaning that is being performed and the type
of cleaning solution used, a procedure for after use fl ushing of the cleaning
system should be developed for your application. In general, a fresh water
fl ush is recommended after each cleaning.
2. Close the main valve, which will end the cleaning and stop the drive unit.
3. Open the cofferdam plug (A) and inspect for leakage.
4. Disconnect the hose and remount the dust cap.
A
Designer
Date Date
Drawer
Surface treatment
Weight
Note
Dimension
Material
General Tolerances
Tolerance ISO 2768-m
Gen. surface
N9
This document is our property and shall not without our permission in writing be altered, copied, used for manu-
facturing or communicated to any person or company.
Drawing no. / Ritningsnr.
Format
SC40RT
A4
Scale
SC40RT
1:5
SC40RT
Denna handling är vår egendom och får ej utan vårt
skriftliga medgivande ändras, kopieras, användas för
tillverkning eller delges annan person eller rma.
SS-ISO 2768-m for machined parts
(30)-120=
0.3
0.5-3=
0.1 (120)-315=
0.5
(3)-30=
0.2 315)-1000=
0.8
P03.1
Törnedalsgatan 1, 275 21 Sjöbo
SWEDEN
ML
Revision
05-04-19
E
No.
Revision note
Date
Sign.
Qty.
Ins.
SC40RT
gram
NOTE! Watch hands and eyes when removing the cofferdam plug
in case of leakage, use protection goggles and gloves.
Designer
Date Date
Drawer
Surface treatment
Weight
Note
Dimension
Material
General Tolerances
Tolerance ISO 2768-m
Gen. surface
N9
This document is our property and shall not without our permission in writing be altered, copied, used for manu-
facturing or communicated to any person or company.
Drawing no. / Ritningsnr.
Format
SC40RT
A4
Scale
SC40RT
1:5
SC40RT
Denna handling är vår egendom och får ej utan vårt
skriftliga medgivande ändras, kopieras, användas för
tillverkning eller delges annan person eller rma.
SS-ISO 2768-m for machined parts
(30)-120=
0.3
0.5-3=
0.1 (120)-315=
0.5
(3)-30=
0.2 315)-1000=
0.8
P03.1
Törnedalsgatan 1, 275 21 Sjöbo
SWEDEN
ML
Revision
05-04-19
E
No.
Revision note
Date
Sign.
Qty.
Ins.
SC40RT
gram

#SC 40RT 06 – 101027Page 16 of 44
7.5. Pickling / Passivation Procedure
In many cases it is convenient to use the Scanjet tank cleaning machines for
surface treatment of tanks. The fluids used for this kind of procedure are mostly
Nitric and Hydrofluoric acid in different proportions. These chemicals are highly
aggressive to most materials including the standard Viton® seals inside the tank
cleaning machine. Scanjet recommends a change of seals to Kalrez® which is a
perfluorelastomer and chemically stable with these acids.
This guide is valid for the following Scanjet machines: SC 30T, SC 30TH, SC 30TL,
SC 40RT
Working procedure:
Before operation:
• Make sure that nothing is blocking
the nozzle movement
• Open the red cofferdam plug (A)
During operation:
• Continuously check the cofferdam
for leakage
• If leakage occurs, stop the operation flush the machine with freshwater and
change seals
After operation:
• Directly flush the machine with freshwater to make sure no residues are left
in the machine
• Drain the drive unit, if fluid comes out open the drive unit and inspect
• Once again check the cofferdam and put back the red plug
Failure to comply to these recommendations could lead to serious damages to
the machine. Do not forget to use safety glasses and protection clothes when
doing the procedure.
It is recommended to follow a protocol and write a report for every machine.
A
Designer
Date Date
Drawer
Surface treatment
Weight
Note
Dimension
Material
General Tolerances
Tolerance ISO 2768-m
Gen. surface
N9
This document is our property and shall not without our permission in writing be altered, copied, used for manu- facturing or communicated to any person or company.
Drawing no. / Ritningsnr.
Format
SC40RT
A4
Scale
SC40RT
1:5
SC40RT
Denna handling är vår egendom och får ej utan vårt skriftliga medgivande ändras, kopieras, användas för tillverkning eller delges annan person eller firma.
SS-ISO 2768-m for machined parts (30)-120=
0.3
0.5-3=
0.1 (120)-315=
0.5
(3)-30=
0.2 315)-1000=
0.8
P03.1
Törnedalsgatan 1, 275 21 Sjöbo
SWEDEN
ML
Revision
05-04-19
E
No.
Revision note
Date
Sign.
Qty.
Ins.
gram

#SC 40RT 06 – 101027 Page 17 of 44
7.6. Calculation of Cleaning Time
A) Calculation of cleaning time for a cycle
The cleaning time depends of the following:
Rotation speed of the machine
A (rev / min)
Number of rotations for full pattern
47 (turns)
Number of rotation for one cycle
47/4=11,75 (turns)
Cleaning time
D (minutes)
Cleaning time D = 11,75
A
Example 1: The machine rotates with 2,0 turns per minute (measured with a
wrist watch when looking at the machine). How long time does it take to a first
cleaning pattern in the tank?
A = 2,0
A first pattern is created after one cycle!
Cleaning time D = 11,75
2 ~ 5,9 minutes
NOTE! After an additional 4 x 5,9 = 23,5 minutes a full cleaning pattern will be
created.

#SC 40RT 06 – 101027Page 18 of 44
B) Calculation of cleaning time for getting out a certain amount of
cleaning media (prewash)
- The total flow Q (m³/h) through the nozzles is calculated by adding the flow for
each machine operating in the tank at the specific pressure used. See table under
“4. Technical Data” on page 7.
- Needed amount of washing media R (m³) calculated as per Prewash Regulations.
- The time T the machine must be in operation is then calculated as:
T = Rx60
Q (min)
Example 2:
- Prewash rules gives that 6 m³ of cleaning media should be used.
- We have a tank with two (2) machines, each with a Ø10 mm nozzle, and will
operate the tank cleaning machine at 12 bar pressure.
- How long time should we operate the machine?
Solution
Table at page 8 shows that at 12 bar and 2 x Ø10 mm nozzle will give a flow of 27
m³/h per machine. Total flow will then be calculated by adding the flow of both
machines, giving a total flow in the tank of 54 m³/h.
Needed time T = 6x60
54 ~ 6,7 min

#SC 40RT 06 – 101027 Page 19 of 44
Cleaning Time
Cleaning time for different number of cycles depending on the rotation speed of
the tank cleaning machine
1 1.5 2 2.5 3
0
5
10
15
20
25
30
35
40
45
50
1 Cycle
2 Cycles
3 Cycles
4 Cycles
min
r/min

#SC 40RT 06 – 101027Page 20 of 44
7.7. Speed Adjustment
Changing the rotating speed for the turbine sets the rotating speed of the
machine. This is done by changing position of the conical turbine in its cone.
The speed can be adjusted while operating the machine by doing the following:
Note that the machine might rotate slower in cold climate.
1. Look at the top nut (pos. 113) through the cofferdam hole (E). The time it
takes for one turn can be measured with a wristwatch.
2. The speed should be 1-2 rpm. If not, adjust as follows.
3. Remove protective cup (A) (Key no. 25).
4. Loosen contra nut (B) (Key no. 30).
5. Set the adjusting screw (D) to get the desired speed by using a special short
Allen key no. 6 (tool 12061). By lifting the adjusting screw (D) the speed
will reduce and vice verse. The fastest speed that is possible to get is when
the turbine is running with a minimal gap between the turbine and the
sleeve. This is achieved by lowering the turbine until it stops and then raise it
approx. ½ a turn. Be careful not to lift the turbine too high, this would
make the machine stop.
6. After the speed has been set, tighten contra nut (B).
7. Recheck the speed of the machine step 1-2 and if OK check for leakages at
the adjusting screw. If leakages occur change O-ring (C, pos. 137).
8. Replace the protective cap (A).
Stop the machine while adjusting the screw, start again when the
contra nut are tightened. Check the speed, if not OK adjust again.