Sleipner SH420 User manual

SLEIPNER AS
P.O. Box 519
N-1612 Fredrikstad
Norway
www.sleipnergroup.com
DOCUMENT ID:
REVISION:
DATE:
LANGUAGE:
Installation Guide
For Hydraulic Thruster Models
SH420, SH550
5937
7
2 0 21
EN
I M

25937 72 0 21
-
SH 420tc & 550tc
DECLARATION OF CONFORMITY
Sleipner Motor AS
P.O. Box 519, Arne Svendsensgt. 6-8
N-1612 Fredrikstad, Norway
Declare that this product with accompanying standard control systems complies with the
essential health and safety requirements according to:
DIRECTIVE 2013/53/EU
DIRECTIVE 2014/30/EU
DIRECTIVE 2014/35/EU
MC_0020
Contents
EN
Products
SM905358 | SH550/386TC-G45 - SH550 Tunnel thruster, G45
SM908044 | SH550/386TC-U33 - SH550 Tunnel thruster, U33
SM905359 | SH550/386TC-P42 - SH550 Tunnel thruster, P42
SM102974 | SH550/386TC-BA40 - SH550 Tunnel thruster, BA40 [Archived]
SH550/386TC-U50 - *Hydraulikk thruster >550-U50
SM905355 | SH550/386TC-BA40-S - SH550 Tunnel thruster, BA40
[Archived] SH550/386TC-U29 - * BRUK SH420
SM905357 | SH550/386TC-BA75 - SH550 Tunnel thruster, BA75
SM908045 | SH550/386TC-U37 - SH550 Tunnel thruster, U37
SM905360 | SH550/386TC-P52 - SH550 Tunnel thruster, P52
SM102970 | SH550/386TC-BA60 - SH550 Tunnel thruster, BA60
SM142545 | SH550/386TC-BA45 - SH550 Tunnel thruster, BA45
SM905354 | SH550/386TC-BA32 - SH550 Tunnel thruster, BA32
SM905356 | SH550/386TC-BA56 - SH550 Tunnel thruster, BA56
SM908046 | SH550/BA40-S - Hydraulikk thruster, >550kg
SM905352 | SH420/386TC-U29 - SH420 Tunnel thruster, U29
SM905351 | SH420/386TC-U26 - SH420 Tunnel thruster, U26
SM905353 | SH420/386TC-U33 - SH420 Tunnel thruster, U33
SM119464 | SH420/386TC-BA32 - SH420 Tunnel thruster, BA32
SM905350 | SH420/386TC-BA40-S - SH420 Tunnel thruster, BA40
SM908043 | SH420/386TC-U42 - SH420 Tunnel thruster, U42. UTGÅTT
SM103124 | SH420/386TC-U37 - SH420 Tunnel thruster, U37
SM908042 | SH420/386TC-BA40 - SH420 Tunnel thruster, BA40
Installation instructions
Planning Considerations and Precautions................................. 3
Thruster Measurements ............................................................ 4
Thruster Specications .............................................................. 5
Technical Specications ............................................................ 5
Positioning of the tunnel/ thruster............................................. 6
Tunnel Length ............................................................................. 7
Tunnel Installation in Sailboats.................................................. 8
Water Deflection......................................................................... 9
Tunnel ends ............................................................................. 10
Tunnel Installation............................................................ 11 - 12
Stern Tunnel Installation......................................................... 13
Thruster installation
Hydraulic Thruster Installation Considerations and Precautions..
.................................................................................................. 14
Technical Specications.......................................................... 15
Technical Requirements / Hydraulic hose connections to motor
.................................................................................................. 16
Crossover Valve ....................................................................... 17
Gear Leg & Motor Bracket Installation ................................... 18
Propeller Installation................................................................ 19
Motor Installation..................................................................... 20
Oil Tank Installation................................................................. 21
S-link Planning & Precautions ................................................ 22
Control Panel Installation......................................................... 23
Checklist for Hydraulic Thrusters............................................ 24
Service and Support ...................................................... 25
Product Spare Parts and Additional Resources ............... 25
Warranty statement ...................................................... 25

3
5937 72 0 21
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SH 420tc & 550tc
MC_0113
Planning Considerations and Precautions
EN
• Do not install the thruster in a position where you need to cut a stiffener/ stringer/ support for the hull integrity without checking with the boat
builder this can be done safely.
• The motor, its components, contacts/ plugs or other joints in the control cables must be mounted so they will remain dry at all times.
• We advise painting the gear house and propellers with anti-fouling. (NB: Do not paint the anodes, sealing, rubber fi ttings or propeller shafts)
• Do not  nish the inside of the tunnel with a layer of gel-coat/ topcoat or similar. There is only room for a thin coat of primer and two layers of
anti-fouling between the tunnel and the propellers.
• Keep installation within advised measurements. The entire surface is hard coated seawater resistant aluminium. Do not damage or penetrate the
coat.
• Install the oil tank higher than the pumps to ensure enough gravity feed and pressure for feed ports. (NB: The height of oil levels in the hydraulic
tank should be higher than the connected hydraulic pumps.)
• Find a suitable location for the hydraulic tank installation for future maintenance accessibility. There must be enough space around the oil tank to
change  lters,  ll oil and inspect gauges and indicators.
It is the installers responsibility
When installing Sleipner equipment follow the outlined regulations/ classi cation rules (electrical/ mechanical) according to
international or special national regulations. Instructions in this guide cannot be guaranteed to comply with global electric/
mechanic regulations/ classi cation rules.
Follow all health and safety laws in accordance with their local outlined regulations/ classi cation rules.
Before installation, it is important that the installer reads this guide to ensure necessary acquaintance with the product.
The recommendations made in this manual are guidelines ONLY, and Sleipner Motor AS (Sleipner) strongly recommend that before
installation, advice is obtained from a naval architect familiar with the particular vessel and regulations/ classi cations.
This manual is intended to support educated/ experienced staff and is therefore not suf cient in all details for professional
installation. (NB: These instructions are only general instruction. If you are not skilled to do this work, please contact professional
installers for assistance.)
All electrical work must be done by a licensed professional.
Faulty installation of Sleipner products will render all warranty given by Sleipner Motor AS void. MC_0038
MC_0009
Hydraulic Thruster Installation Considerations and Precautions
EN
Before installation, The installer must read this guide to ensure necessary acquaintance with this product.
• If the height of the room you are installing the Side-Power is limited, it can be installed horizontally or at any angle in-between.
• The motor must be handled with care. Do not rest on the drive shaft.
If an original Side-Power hydraulic system is NOT installed, please ensure the following:
• Install an oil  lter to keep the oil clean.
• Fit an oil cooler or use an oil tank to ensure the maximum oil temperature is 43 - 50 degrees Celsius.
• Hydraulic thrusters are supplied with hydraulic motors only.
• The installed hydraulic system is the responsibility of the  tter/ installer and must be within the limitations outlined in this manual to ensure no
damage is caused to the thruster.
• The hydraulic valve must have flow and pressure limits that are either set within or can be adjusted to the limits of the thrusters capability.
• We strongly advise that a shock valve is  tted and set to 10% - 15% above the chosen maximum pressure set in the valve. This will prevent the
system from being damaged if the propellers are blocked for any reason.
• It is required that a device is installed to ensure that the drive direction cannot be suddenly changed, as this can severely damage the gear house.
(NB: By adding an electronic time-lapse/delay safety on the electric control system or by using a valve that has this type of protection built
in will prevent this issue. *The required time delay is 1 second.)
IMPORTANT
If installing S-link products DO NOT connect any other control equipment to the S-link controlled products except Sleipner original S-link
products or via a Sleipner supplied interface product made for interfacing with other controls. Any attempt to directly control or at all connect
into the S-link control system without the designated and approved interface will render all warranties and responsibilities for the complete
line of Sleipner products connected void and null. If you are interfacing by agreement with Sleipner and through a designated SLeipner
supplied interface, you are still required to also install at least one original Sleipner control panel to enable effi cient troubleshooting if
necessary. MC_0265

45937 72 0 21
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SH 420tc & 550tc
MC_0146
Thruster Specifi cations
EN
Description * 420 * 550
Light duty thrust up to (kg * lbs) 420kg * 925lbs 550kg * 1210lbs
Heavy duty thrust up to (kg * lbs) 380kg * 835lbs 500kg * 1100lbs
Typical Boat Size (m * ft) 22m - 35m * 75ft - 110ft 25m - 40m * 85ft - 140ft
Propulsion System Twin Counter Rotating Twin Counter Rotating
Power (kw * Hp) 31.8kw * 42.6hp 39.9kw * 53.5hp
Weight (kg * lbs) 46 kg * 101.41 lbs 56 kg * 123.45 lbs
Lubrication Gravity Feed Gravity Feed
MG_0078
TL
WD
ID
T
Tunnel centre line
Twin Propeller
The gear leg/ propeller(s) must
never extend out of the tunnel
H
W
L
Propeller position will
vary with each thruster
model
MC_0187
Thruster Measurements
EN
Measurement
code Measurement description mm inch mm inch
ID Internal tunnel diameter 386 15,2 386 15,2
H Motor Height 369 14,53 369 14,53
W Width 268 10,55 268 10,55
L Length 268 10,55 268 10,55
WD Water Depth 380 14,96 380 14,96
TL Minimum tunnel length 500 19,69 500 19,69
TL (recommended) Recommended tunnel length 750 29,53 750 29,53
T (min) Minimum tunnel wall thickness 10 0.39 10 0.39
T (max) Maximum tunnel wall thickness
*420 *550

5
5937 72 0 21
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SH 420tc & 550tc
MC_0056
Technical Specifi cations
EN
Motor: Hydraulic type (speci cations above).
Gear house: Seawater resistant bronze. Ball-bearing at propeller shaft and a combination of ball bearing and slide bearing at drive shaft.
Gears: Hardened precision gears
Lubrication: Oil bath from tank (gear oil EP 90)
Bearings: Angular contact ball bearing at propeller shaft and combination of ball bearing and needle bearing at drive shaft.
Motor bracket: Seawater resistant aluminium, galvanically insulated from the motor.
Tunnel: Cross spun with rowing G.R.P tunnel
Steel & aluminium tunnels available at request.
Propeller: SH 100/ SH 160/ SH 240/ SH 320/ SH 360: 5-blade skewback “Q-prop” propeller,  breglass reinforced composite.
SH 420/ SH 550 Symmetrical 4 blade kaplan propeller,  breglass reinforced composite.
Safety: Flexible coupling between hydraulic-motor and drive shaft protects gear system if propeller jams.
MC_0146
Thruster Specifi cations
EN
Description * 420 * 550
Light duty thrust up to (kg * lbs) 420kg * 925lbs 550kg * 1210lbs
Heavy duty thrust up to (kg * lbs) 380kg * 835lbs 500kg * 1100lbs
Typical Boat Size (m * ft) 22m - 35m * 75ft - 110ft 25m - 40m * 85ft - 140ft
Propulsion System Twin Counter Rotating Twin Counter Rotating
Power (kw * Hp) 31.8kw * 42.6hp 39.9kw * 53.5hp
Weight (kg * lbs) 46 kg * 101.41 lbs 56 kg * 123.45 lbs
Lubrication Gravity Feed Gravity Feed
MC_0187
Thruster Measurements
EN
Measurement
code Measurement description mm inch mm inch
ID Internal tunnel diameter 386 15,2 386 15,2
H Motor Height 369 14,53 369 14,53
W Width 268 10,55 268 10,55
L Length 268 10,55 268 10,55
WD Water Depth 380 14,96 380 14,96
TL Minimum tunnel length 500 19,69 500 19,69
TL (recommended) Recommended tunnel length 750 29,53 750 29,53
T (min) Minimum tunnel wall thickness 10 0.39 10 0.39
T (max) Maximum tunnel wall thickness
*420 *550

65937 72 0 21
-
SH 420tc & 550tc
important
MG_0001
A
B
Pivot
point
1
Ø
2
Lowered rotation power performance
Stronger rotation power performance
min 1/4
Ø
(Recommended)
min 1/4
Ø
(Recommended)
WD
Water line
Positioning of the tunnel / thruster
EN MC_0003
Aim to install the thruster as far forward as possible (1)
Due to the leverage effect around the boats’ pivot point. The distance difference from the boat pivots’ point to the thruster will determine the amount
of real rotation power for the boat.
Aim to install the thruster as deep as possible under the waterline (2)
Deeper installations prevent air from being sucked into the tunnel from the surface, resulting in reduced thrust performance and increase noise levels
during operation. Deeper installations increase water pressure for maximum ef ciency from the thruster.
The centre of the tunnel should be a minimum of 1 x the tunnel diameter below the waterline. The installer must make evaluations based on thruster
performance, boat type and operating conditions. As a general recommendation, the position of the tunnel should not be a minimum of 1/4 of the
diameter of the tunnel from the boat keel. (NB: This can be overlooked depending on the installation methods defi ned in this manual.)

7
5937 72 0 21
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SH 420tc & 550tc
MC_0003
1
2
3
4 65
MG_0048
Increase tunnel length to protect
the propeller from water forces
when high-speed cruising.
Water
Forces
Increase tunnel length to
prevent a circular water vacuum
cavity between the propeller and
the hull of the boat.
STANDARD USE FLAT BOTTOM HULL HIGH-SPEED OPERATION
Do not allow the variable length of the tunnel walls to vary in length
excessively.
EG. the top tunnel wall is x 4 longer than the bottom wall.
Cavitation
Water flow must have
space to "straighten"
itself for best
performance.






The gear leg/ propeller(s) must
never extend out of the tunnel
Tunnel Length
EN
Optimal tunnel length
Achieving the correct tunnel length depends on many factors from the hull type, operation and environmental conditions.
Tunnels should avoid being longer than 4 x the tunnel diameter as this will reduce thruster performance. (NB: Installing long length tunnels can flex/
bend over time and may require additional support. Consult with a naval architect.)
1. Do not allow the variable length of the tunnel walls to vary in length excessively.
EG. the top tunnel wall is x 4 longer than the bottom wall.
2. If the tunnel is too long, the friction inside will reduce the water speed and thereby the thrust.
3. If the tunnel is too short (typically only in the bottom section of the tunnel) cavitation problems can occur as water flow will not be able to
“straighten” itself before reaching the propeller. This cavitation will reduce performance and increase noise during operation.
Thruster within the tunnel
It is important the propellers and the lower unit/ gear leg must be entirely inside the thruster tunnel. Propellers that protrude from the tunnel will not
perform as intended.
4. Standard Use
Tunnel length must be long enough to ensure the propellers are not extruding the tunnel.
5. Flat Bottom Hull
Tunnel lengths must be longer than the standard measurement outlined within the manual to ensure a circular vacuum is not created between the
thruster and the bottom of the boat.
6. High-Speed Boats
Tunnel lengths must be increased to protect the propeller from damage when crashing against the water surface during high-speed cruising. (NB:
This can include the length of a spoiler)

85937 72 0 21
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SH 420tc & 550tc
MG_0004
Min
Pos. B
Pos. A

1
1
2
3
4 65
MG_0048
Increase tunnel length to protect
the propeller from water forces
when high-speed cruising.
Water
Forces
Increase tunnel length to
prevent a circular water vacuum
cavity between the propeller and
the hull of the boat.
STANDARD USE FLAT BOTTOM HULL HIGH-SPEED OPERATION
Do not allow the variable length of the tunnel walls to vary in length
excessively.
EG. the top tunnel wall is x 4 longer than the bottom wall.
Cavitation
Water flow must have
space to "straighten"
itself for best
performance.






The gear leg/ propeller(s) must
never extend out of the tunnel
Tunnel installation in sailboats
EN
Some sail boats have a flat bottom and shallow draft in the bow section. This can make installing the thruster as far forward from the boats main pivot
point dif cult. (Fig. 1).
However, it is possible to install a tunnel thruster in most sail boats, even when the hull does not directly support the  tting of a tunnel.
Instead  t the tunnel halfway into the underneath section of the existing hull. Strengthen it with a deflector/ spoiler directing the water flow around
the tunnel. This will allow installation of the thruster in the proper position on the boat, maintaining the reliability and space advantages of the tunnel
thruster.
This installation is being used by some of the world’s largest sail boat builders and has proven to give little to no speed loss during normal cruising.
This can also be an installation method for flat bottomed barges to avoid extremely long tunnels and large oval tunnel openings in the hull.
MC_0003

9
5937 72 0 21
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SH 420tc & 550tc
MG_0003
High water force
while underway
High water force
while underway
from wave contact


1 2 3
4
Water Deflection
EN MC_0003
1. A possible problem in sail boats or fast powerboats is that a non-rounded surface can generate drag from the back face of the tunnel, as it creates
a
“flat” area facing the flow of water (1).
This problem can be solved in two different ways, depending on what is possible or easier to perform.
2. The best solution which generally reduces the most drag is to make a recess in the hull at the back of the tunnel. As the back face is removed
water can flow freely past the tunnel entry. The depth and shape of this recess will depend on the boat and the angle facing up/ down aft of the
tunnel insert. Normally it is angled slightly down because of the water flow on this area (2).
3. Making a deflector/ spoiler in front and underneath the tunnel can also reduce damage to the thruster and drag. The deflector/ spoiler will push
the water flow out from the hull so water can pass by the back face of the tunnel. The shape and size of this deflector/ spoiler will depend on the
hull shape. The easiest way of making the deflector/ spoiler is to retain a part of the lower forward area of the tunnel while installing the tube. Use
this area as support to mould a soft curve/spoiler shape from the hull. (3).
4. The thruster propeller can spin (passively) producing noise while sailing or cruising as water is forced through the tunnel. Water-flow directed
through the tunnel at high speeds, during turning or as the boat bumps waves while underway can also damage the thruster (4).
(NB: As a rule, you should not see the back face of the tunnel when standing directly in front of the boat looking aft.)
MG_0004
Min
Pos. B
Pos. A

1
1
2
3
4 65
MG_0048
Increase tunnel length to protect
the propeller from water forces
when high-speed cruising.
Water
Forces
Increase tunnel length to
prevent a circular water vacuum
cavity between the propeller and
the hull of the boat.
STANDARD USE FLAT BOTTOM HULL HIGH-SPEED OPERATION
Do not allow the variable length of the tunnel walls to vary in length
excessively.
EG. the top tunnel wall is x 4 longer than the bottom wall.
Cavitation
Water flow must have
space to "straighten"
itself for best
performance.






The gear leg/ propeller(s) must
never extend out of the tunnel
Tunnel installation in sailboats
EN
Some sail boats have a flat bottom and shallow draft in the bow section. This can make installing the thruster as far forward from the boats main pivot
point dif cult. (Fig. 1).
However, it is possible to install a tunnel thruster in most sail boats, even when the hull does not directly support the  tting of a tunnel.
Instead  t the tunnel halfway into the underneath section of the existing hull. Strengthen it with a deflector/ spoiler directing the water flow around
the tunnel. This will allow installation of the thruster in the proper position on the boat, maintaining the reliability and space advantages of the tunnel
thruster.
This installation is being used by some of the world’s largest sail boat builders and has proven to give little to no speed loss during normal cruising.
This can also be an installation method for flat bottomed barges to avoid extremely long tunnels and large oval tunnel openings in the hull.
MC_0003

10 5937 72 0 21
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SH 420tc & 550tc
MG_0002
R = 0,1 x D (10%)
D


12
3
Angled tunnel ends for
steel/ aluminium hulls
Cavitation
MG_0003
High water force
while underway
High water force
while underway
from wave contact


1 2 3
4
Tunnel Ends
EN MC_0003
Rounded tunnel ends will maximise thrust and minimise noise and cavitation.
For best performance round the tunnel connection to the hull-side as much as possible. The minimum rounding has a radius of 10% of the diameter of
the tunnel.
Signi cant advantages of a rounded tunnel over a sharp tunnel to hull connections are:
1. A rounded tunnel end will prevent the creation of turbulence/ cavitation created from a sharp tunnel end when water passes by the tunnel.
- The turbulence/ cavitation will block the outer area of the tunnel and thereby reduces the effective tunnel diameter and thrust.
- Turbulence/ cavitation on the propeller will lessen the thrusters performance and create excess noise.
2. For steel/ aluminium hulls angled tunnel ends also offer similar performance as a rounded connection.
3. A rounded tunnel end makes the thruster draw water from along the hull-side, creating a vacuum that will suck the boat sideways and thereby give
additional thrust.
- With a sharp tunnel end, the thruster will be unable to take water from along the hull-side, and you will not gain the desired vacuum and
additional thrust. This “free” extra thrust in optimal installations be 30 - 40% of the total thrust.
(NB: A Side-power thruster propeller does not produce cavitation at working speed. Therefore, any cavitation and cavitation noise in the tunnel will
be caused during improper tunnel installation.)