Sleipner SH400 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
SH400
EN
I M
6 074
5
2 0 21

26 074 52 0 21
-
SH 400
Sleipner Motor AS
P.O. Box 519, Arne Svendsensgt. 6-8
N-1612 Fredrikstad, Norway
MC_0020
Contents
Products
SM908041 | SH400/300TC-BA23 - SH400 Tunnel thruster, BA23
Installation Manual
Responsibility of the Installer................................................................................................................................................................... 3
Thruster Measurements ....................................................................................................................................................................... 4
Thruster Specications........................................................................................................................................................................... 5
Technical Specications .................................................................................................................................................................. 5 - 6
Technical Requirements / Hydraulic Hose Connections To Motor 7
Positioning of the tunnel / thruster.......................................................................................................................................................... 8
Tunnel Length......................................................................................................................................................................................... 9
Tunnel installation in sail boats............................................................................................................................................................. 10
Water Deection ................................................................................................................................................................................... 11
Tunnel ends.......................................................................................................................................................................................... 12
Tunnel installation........................................................................................................................................................................... 13- 14
Stern tunnel installation ........................................................................................................................................................................ 15
Gear Leg & Motor Bracket Installation.................................................................................................................................................. 16
Propeller Installation............................................................................................................................................................................. 17
Motor Installation ................................................................................................................................................................................... 18
Oil Tank Installation ............................................................................................................................................................................... 19
Crossover Valve .................................................................................................................................................................................... 20
S-Link System Description .................................................................................................................................................................... 21
Control Panel Installation ..................................................................................................................................................................... 22
Pre-delivery Checklist .......................................................................................................................................................................... 23
Service and Support........................................................................................................................................................................... 24
Product Spare Parts and Additional Resources.............................................................................................................................. 24
Warranty Statement............................................................................................................................................................................ 24

3
6 074 52 0 21
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SH 400
MC_0009
General Installation Considerations and Precautions for Hydraulic Thrusters
If an original Side-Power hydraulic system is NOT installed, please ensure the following:
• Install an oil fi 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 fi 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 fi 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.)
The installer must read this document to ensure necessary familiarity with the product before installation.
Instructions in this document cannot be guaranteed to comply with all international and national regulations. It is the responsibility of the
installer to follow all applicable international and national regulations when installing Sleipner products.
The recommendations given in this document are guidelines ONLY, and Sleipner strongly recommends that advice is obtained from a person
familiar with the particular vessel and applicable regulations.
This document contains general installation instructions intended to support experienced installers. If you are not skilled in this type of work,
please contact professional installers for assistance.
If required by local regulation, electrical work must be done by a licensed professional.
Appropriate health and safety procedures must be followed during installation.
Faulty installation of Sleipner products will render all warranties given by Sleipner Motor AS.
MC_0038
Responsibility of the Installer
MC_0425
General Installation Considerations and Precautions for Thrusters
• Do not install the thruster in a position where you need to cut a stiffener/ stringer/ support that may jeopardise the hull integrity without checking
with the boat builder this can be done safely.
• 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 fi 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 props.
• Never run the thruster out of water.
• The electro/ hydrulic motor must be handled with care. Do not place down the motor on the drive shaft.
Failure to follow the considerations and precautions can cause serious injury,
damage and will render all warranties given by Sleipner Motor as VOID.
MC_0411
MC_0105
Considerations and Precautions for S-Link Systems
When installing an S-Link™ system DO NOT connect any other control equipment directly to the S-Link™ bus except original Sleipner S-Link™ products.
In case of connecting third-party equipment, it must always be connected through a Sleipner-supplied interface product.
Any attempt to directly control or connect into the S-Link™ control system without a designated and approved interface will render all warranties and
responsibilities of all of the connected Sleipner products.
If you are interfacing the S-Link™ bus by agreement with Sleipner through a designated Sleipner supplied interface, you are still required to install at
least one original Sleipner control panel to enable efficient troubleshooting if necessary.

46 074 52 0 21
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SH 400
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_0195
Thruster Measurements
Measurement
code Measurement description mm inch
ID Internal tunnel diameter 300 11.81
HMotor Height 356 14.02
WWidth 258 10.16
L Length 258 10.16
WD Water Depth 450 17.72
TL Minimum tunnel length 370 14.57
TL (recommended) Recommended tunnel length 550 21.65
T (min) Minimum tunnel wall thickness 10 0.39
T (max) Maximum tunnel wall thickness
*400

5
6 074 52 0 21
-
SH 400
MG_0078
TL
WD
ID
T
Tunnel centre line
Twin Propeller
The gear leg/ propeller(s) must
never extend out of the tunnel
H
WL
Propeller position will
vary with each thruster
model
MC_0195
Thruster Measurements
Measurement
code Measurement description mm inch
ID Internal tunnel diameter 300 11.81
HMotor Height 356 14.02
WWidth 258 10.16
L Length 258 10.16
WD Water Depth 450 17.72
TL Minimum tunnel length 370 14.57
TL (recommended) Recommended tunnel length 550 21.65
T (min) Minimum tunnel wall thickness 10 0.39
T (max) Maximum tunnel wall thickness
*400
MC_0196
Thruster Specifi cations
Description * 400
Light duty thrust up to (kg * lbs) 400 kg * 882 lbs
Heavy duty thrust up to (kg * lbs) 400 kg * 882 lbs
Typical Boat Size (m * ft) 18m - 33m * 75ft - 110ft
Propulsion System Twin Counter Rotating
Power (kw * Hp) 30 kw * 41 hp
Weight (kg * lbs) 31 kg * 68.34 lbs
Lubrication Oil Bath
MC_0204
Technical Specifi cations
Motor: Hydraulic type (specifi 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.
Tunnel: Cross spun with rowing G.R.P tunnel
Steel & aluminium tunnels available at request.
Propeller: Symmetrical bronze 5-blade skew “Q-prop” propeller.
Safety: Flexible coupling between hydraulic-motor and drive shaft protects gear system if propeller jams.

66 074 52 0 21
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SH 400
MC_0107
Technical Specifi cations
1) Max. thrust: 182kg
2) Max. thrust: 228kg
3) Max. thrust: 211kg
4) Max. thrust: 269kg
5) Max. thrust: 302kg
6) Max. thrust: 307kg
7) Max. thrust: 310kg
8) Max. thrust: 370kg
9) Max. thrust: 399kg
60 % 80 % 100 %
Thruster model Motor type Flow Pressure Flow Pressure Flow Pressure
SH 100
U6 L/min -Bar 18.8 103 21.7 137 24.2 172
USG-PSI 5.0 1494 5.7 1987 6.4 2494
U8 L/min -Bar 25.5 77 29,9 103 32,3 129
USG-PSI 6.6 1117 7.6 1494 8.5 1871
U10 L/min -Bar 31.3 62 36.1 82 40.4 103
USG-PSI 8.3 899 9.5 1189 10.7 1494
SH 160
U6 L/min -Bar 18.6 150 21,5 200 24 250
USG-PSI 4.9 2175 5.7 2900 6.3 3625
U8 L/min -Bar 24,8 112 28.6 150 32.0 187
USG-PSI 6.6 1624 7.6 2175 8.5 2712
U10 L/min -Bar 31.0 82 35.8 120 40,0 150
USG-PSI 8.2 1305 9.5 1740 10.6 2172
U11 L/min - Bar 34.1 82 39.3 109 44.0 136
USG-PSI 9.0 1189 10.4 1581 11.6 1972
U14 L/min -Bar 43.1 64 49.7 86 55,6 107
USG-PSI 11.4 928 13.1 1247 14.7 1552
SH 240
U8 L/min -Bar 19.1 217 21.4 275 21,4 2751)
USG-PSI 5.05 3147 5.65 3988 5.65 39881)
U10 L/min -Bar 23.8 174 27.5 232 30 2752)
USG-PSI 6.29 2523 7.23 3364 7.93 39882)
U11 L/min -Bar 26.2 158 30.2 211 33,8 264
USG-PSI 6.9 2291 8.0 3060 8.9 3828
U14 L/min -Bar 33.1 124 38.2 166 42.7 207
USG-PSI 8.7 1798 10.1 2407 11.3 3002
U16 L/min -Bar 38.1 109 44.0 145 49.2 181
USG-PSI 10.1 1581 11.6 2103 13.0 2625
U19 L/min -Bar 45.1 92 52.1 122 58.3 153
USG-PSI 11.9 1334 13.8 1769 15.4 2219
SH320
U11 L/min -Bar 23.8 249 24.9 274 24.9 2743)
USG-PSI 6.29 3611 6.58 3973 6.58 39733)
U14 L/min -Bar 30.1 196 34.7 261 35.6 2744)
USG-PSI 7.95 2842 9.17 3785 9.41 39734)
U16 L/min -Bar 34.6 171 39.9 229 43.7 2746)
USG-PSI 9.14 2480 10.54 3321 11.55 39736)
BA16 L/min -Bar 33.8 172 39.0 230 43.6 287
USG-PSI 8.93 2494 10.30 3335 11.52 4162
U19 L/min -Bar 41.0 144 47.3 193 52.9 241
USG-PSI 10.83 2088 12.50 2799 13.98 3495
BA19 L/min -Bar 40.1 145 46.3 194 51.8 242
USG-PSI 10.59 2103 11.44 2813 13.69 3509
U23 L/min -Bar 49.4 121 57 162 63.8 202
USG-PSI 13.05 1755 15.06 2349 16.86 2929
SH360
U19 L/min -Bar 46.5 177 53.7 236 55 2485)
USG-PSI 12.3 2567 14.17 3423 14.53 35975)
BA19 L/min -Bar 45.3 176 52.3 234 58.5 293
USG-PSI 11.97 2553 13.82 3394 15.45 4250
U23 L/min -Bar 56,3 146 65.1 195 310 3107)
USG-PSI 14.88 2118 17.2 2828 81.89 44967)
BA23 L/min -Bar 54.5 146 62.3 196 70.3 245
USG-PSI 14.4 2118 16.46 2843 18.57 3553
SH400
U19 L/min -Bar 43.5 195 50.2 260 54.2 3028)
USG-PSI 11.49 2828 13.26 3771 14.32 43808)
BA23 L/min -Bar 52.3 163 60.4 218 67.5 272
USG-PSI 13.82 2364 15.96 3162 17.83 3945
SH 420
U26 L/min -Bar 44.7 188 51.6 251 56.2 2989)
USG-PSI 11.81 2726 13.63 3640 14.85 43219)
U29 L/min -Bar 49.8 169 57.6 225 64.3 281
USG-PSI 13.16 2450 15.22 3263 16.99 4075
BA32 L/min -Bar 48.4 151 55.8 202 62.4 252
USG-PSI 12.78 2190 14.74 2929 16.49 3654
U33 L/min -Bar 56.1 148 64.7 198 72.4 247
USG-PSI 14.82 2146 17.09 2871 19.13 3582
U37 L/min -Bar 62.1 132 71.8 176 80.2 220
USG-PSI 16.41 1914 18.97 2552 21.19 3190
BA40 L/min -Bar 61 121 70.4 161 78.7 202
USG-PSI 16.12 1755 18.6 2335 20.79 2929
SH550
BA40 L/min -Bar 69.8 158 80.5 211 90 264
USG-PSI 18.44 2291 21.27 3060 23.78 3828
P42 L/min -Bar 84.2 152 97.2 203 108.7 254
USG-PSI 22.25 2204 25.68 2944 28.72 3683
G45 L/min -Bar 89.5 142 103.4 190 115.6 237
USG-PSI 23.65 2059 27.32 2755 30.54 3437
BA45 L/min -Bar 77.8 139 89.9 185 100.5 232
USG-PSI 20.56 2016 23.75 2683 26.55 3364
U50 L/min -Bar 95 128 109.7 171 122.7 213
USG-PSI 25.10 1856 28.98 2480 32.42 3089
P52 L/min -Bar 105.1 124 121.4 166 135.7 207
USG-PSI 27.77 1798 27.77 2407 35.85 3002
BA60 L/min -Bar 104.6 106 120.8 141 135.1 176
USG-PSI 27.64 1537 31.92 2045 35.69 2552

7
6 074 52 0 21
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SH 400
1
1
2
2
3
3
4
4
5
5
6
6
A A
B B
C C
D D
72101/U-16
07.03.2014
1
Designed by Date
1 / 1
Edition Sheet
gille
Material Type Drawing nr
SM-106027
Copyright All rights reserved
Part nr Size Scale
Title
Hyd. motor 16 ccm
Tolerance
NS-ISO 2768-1
SLEIPNER MOTOR AS
A3
5,794 kg
1 : 2
Weight
44,8
 15,00
71,40
89,50
94,00
114,00

8,50(4x)
35,70
1
1
2
2
3
3
4
4
5
5
6
6
A A
B B
C C
D D
72101/U-16
07.03.2014
1
Designed by Date
1 / 1
Edition Sheet
gille
Material Type Drawing nr
SM-106027
Copyright All rights reserved
Part nr Size Scale
Title
Hyd. motor 16 ccm
Tolerance
NS-ISO 2768-1
SLEIPNER MOTOR AS
A3
5,794 kg
1 : 2
Weight
44,8
 15,00
71,40
89,50
94,00
114,00

8,50(4x)
35,70
1
1
2
2
3
3
4
4
5
5
6
6
A A
B B
C C
D D
72101/U-16
07.03.2014
1
Designed by Date
1 / 1
Edition Sheet
gille
Material Type Drawing nr
SM-106027
Copyright All rights reserved
Part nr Size Scale
Title
Hyd. motor 16 ccm
Tolerance
NS-ISO 2768-1
SLEIPNER MOTOR AS
A3
5,794 kg
1 : 2
Weight
44,8
 15,00
71,40
89,50
94,00
114,00

8,50(4x)
35,70
MC_0106
Technical Requirements / Hydraulic hose connections to motor
Port A Port B Drain port
(Must be installed,
Port location varies)
Motor type Port A/B** Port flange threads Drain port
U6 1/2" BSP —1/4" BSP
U8 1/2" BSP —1/4" BSP
U10 3/4" BSP —1/4" BSP
U11 3/4" BSP —1/4" BSP
U14 3/4" BSP —1/4" BSP
U16 3/4" BSP —1/4" BSP
U19 3/4" BSP —1/4" BSP
U26 3/4" BSP —1/4" BSP*
U29 3/4" BSP —1/4" BSP*
U33 3/4" BSP —1/4" BSP*
U37 3/4" BSP —1/4" BSP*
U37 3/4" BSP —1/4" BSP*
U50 1" BSP —1/4" BSP*
P42 1" 3000 PSI SAE J518/ ISO 6162 Code 61 3/8-16 UNC-2B, 22 deep 1/4" BSP*
P52 1 1/2" 3000 PSI SAE J518/ ISO 6162 Code 61 M12 x 1,75, 19 deep 1/4" BSP*
G45 1 1/4" BSP —1/4" BSP*
BA16 1.1/16" - 12UN-2B —9/16" UNF-18
BA19 3/4" BSP —3/8" BSP*
BA32/ BA23 1/2" 6000 PSI SAE J518/ ISO 6162 Code 62 5/16-18 UNC-2B, 18 deep 3/4" UNF-16
BA40 3/4" 6000 PSI SAE J518/ ISO 6162 Code 62 3/8-16 UNC-2B, 20 deep 3/4" UNF-16
BA45 3/4" 6000 PSI SAE J518/ ISO 6162 Code 62 3/8-16 UNC-2B, 21 deep 3/4" UNF-16
BA60 3/4" 6000 PSI SAE J518/ ISO 6162 Code 62 3/8-16 UNC-2B, 22 deep 7/8" UNF-16
* Drain port connector must not extend internally beyond 10,5mm from end face.
** Use only parallel threaded adaptors, preferably with soft seal. Do not use plumbing tape, hemp, tread sealant or
similar products.
U, P & G-motor:
BA-motor:
Always use upper positioned drain
port for optimal lubrication of the
motor.
Pre fi ll motor housing with
hydraulic oil before start-up

86 074 52 0 21
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SH 400
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 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 effi 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.)

9
6 074 52 0 21
-
SH 400
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
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)
MC_0003
Tunnel Length
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 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 effi 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.)

10 6 074 52 0 21
-
SH 400
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
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 diffi 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 fi tting of a tunnel.
Instead fi 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

11
6 074 52 0 21
-
SH 400
MG_0003
High water force
while underway
High water force
while underway
from wave contact


1 2 3
4
Water Deflection 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.
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.
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.
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.
(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
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 diffi 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 fi tting of a tunnel.
Instead fi 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

12 6 074 52 0 21
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SH 400
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 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.
Signifi 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.)

13
6 074 52 0 21
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SH 400
MG_0005
R
D
1 2
34
6
5
8 x layers of fiberglass
and resin
8 x layers of fiberglass
and resin
MG_0006
R = D x 0,1
R = D x 0,1
Dx0,1-0,15
Dx0,1-0,15
D
Layers of
fiberglass
and resin
Layers of
fiberglass
and resin
*Fiberglass
Hull
*Steel/
Aluminium
Hull
Hull
Hull
Hull
Tunnel
Tunnel
Tunnel
Welding
Layers of
fiberglass
and resin
Additional Layers of
fiberglass and resin
Additional Layers of
fiberglass and resin
Hull
1 3
4
2
Tunnel Installation
1. Find the position in the boat considering the information earlier in this manual and the applicable measurements for the thruster model you are
installing. Mark the centre of the tunnel on both sides of the hull. Drill a hole horizontally at these marks.
2. Mark the circle for the tunnel opening (outside diameter of the tunnel) and cut the hole.
3. Grind off the gel coat to the “real fi breglass” area 12cm around the hole on both inside and outside the hull to cast the tunnel to the hull (Fig. 3).
4. Insert the tunnel and mark its shape to fi t the hull. (NB: if you are installing with a deflector/ spoiler, leave a part of the tunnel in the front and
underside of the tunnel that will cover the back face.)
5. Cut the tunnel ends to the desired shape and lightly sand its surface. Clean the area with acetone or similar where you are going to apply
fi breglass. (NB: Do not cast or add fi breglass to the area were the thruster will be placed.)
6. Cast the tunnel to the inside of the hull, use at least eight layers of 300g fi breglass and resin, preferably alternating mat and rowing types of
fi breglass. To round the tunnel ends to a 10% radius make further layers inside to preserve the desired hull thickness.
(NB: Ensure gaps between the tunnel and the hull are completely fi lled with resin/ fi breglass. In areas where you can not access to make
layers of resin/ fi breglass, a resin/ fi breglass mixture must be used in that area.)
MC_0003
IMPORTANT
We recommend that a professional does the fi breglass, steel or aluminium fi tting of the tunnel. These instructions are only general
instructions and do not explain in any way the details of fi breglass work. Problems caused by faulty installation of the tunnel, are the
installers full responsibility.
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 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.
Signifi 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.)

14 6 074 52 0 21
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SH 400
MG_0005
R
D
1 2
34
6
5
8 x layers of fiberglass
and resin
8 x layers of fiberglass
and resin
MG_0006
R = D x 0,1
R = D x 0,1
Dx0,1-0,15
Dx0,1-0,15
D
Layers of
fiberglass
and resin
Layers of
fiberglass
and resin
*Fiberglass
Hull
*Steel/
Aluminium
Hull
Hull
Hull
Hull
Tunnel
Tunnel
Tunnel
Welding
Layers of
fiberglass
and resin
Additional Layers of
fiberglass and resin
Additional Layers of
fiberglass and resin
Hull
1 3
4
2
IMPORTANT
Avoid all casting where the motor-bracket is to be placed, as this will cause misfi t and possible failure to the gear house.
Tunnel Installation
With tunnel installed and cast.
1. Round the edges with a radius of 10% of the tunnel diameter.
2. For steel/ aluminium hulls make a slope with a length of 10-15% of the tunnel diameter.
(NB: If this is not possible, round the tunnel end as much as possible.)
3. Additionally cast two layers on the outside of the tunnel/ hull in a 10cm area
4. Follow the same method if making the deflector/ spoiler.
You must apply gel coat to areas you have grounded/ moulded to make waterproof. These areas allow water access to the hull which is typically not
waterproof without these applications outside. (NB: All original Side-Power tunnels are fully waterproof when delivered except in the areas where
you have cut and bonded it to the hull.)
MC_0003

15
6 074 52 0 21
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SH 400
For Stern Thruster installation please refer to the supplied manual in your Sleipner product delivery
Stern Thruster
SLEIPNER AS
P.O. Box 519
N-1612 Fredrikstad
Norway
www.sleipnergroup.com
DOCUMENT ID:
REVISION:
DATE:
LANGUAGE:
Installation Guide
Stern Tunnel Installation MC_0003
MG_0005
R
D
1 2
34
6
5
8 x layers of fiberglass
and resin
8 x layers of fiberglass
and resin
MG_0006
R = D x 0,1
R = D x 0,1
Dx0,1-0,15
Dx0,1-0,15
D
Layers of
fiberglass
and resin
Layers of
fiberglass
and resin
*Fiberglass
Hull
*Steel/
Aluminium
Hull
Hull
Hull
Hull
Tunnel
Tunnel
Tunnel
Welding
Layers of
fiberglass
and resin
Additional Layers of
fiberglass and resin
Additional Layers of
fiberglass and resin
Hull
1 3
4
2
IMPORTANT
Avoid all casting where the motor-bracket is to be placed, as this will cause misfi t and possible failure to the gear house.
Tunnel Installation
With tunnel installed and cast.
1. Round the edges with a radius of 10% of the tunnel diameter.
2. For steel/ aluminium hulls make a slope with a length of 10-15% of the tunnel diameter.
(NB: If this is not possible, round the tunnel end as much as possible.)
3. Additionally cast two layers on the outside of the tunnel/ hull in a 10cm area
4. Follow the same method if making the deflector/ spoiler.
You must apply gel coat to areas you have grounded/ moulded to make waterproof. These areas allow water access to the hull which is typically not
waterproof without these applications outside. (NB: All original Side-Power tunnels are fully waterproof when delivered except in the areas where
you have cut and bonded it to the hull.)
MC_0003

16 6 074 52 0 21
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SH 400
MC_0001
Gear Leg & Motor Bracket Installation
!Please refer to the graphic for special considerations relating to your model !
1. Mark the tunnel centreline and the boat’s centreline. (NB: Install the gear leg and propeller as shown above for the thrust direction to correspond
with the control panel. Position gear leg with the P-mark facing port and the S-mark facing starboard.)
2. Use the gasket or template (recommended) to mark the hole centres and double-check the measurements. The centre hole MUST be placed
using the boat centreline as shown above. (NB: All holes must be in-line with the tunnels’ centreline for correct installation, clearance between
the propeller and the tunnel is minimal.)
3. Smooth the surface of the tunnel. A rough surface will cause possible failure/movement of the gear leg. The motor bracket must rest steadily on
the tunnel.
4. Drill the main centre hole followed by the two screw-holes.
5. Place the gear leg (without the propeller) with the gasket on inside the tunnel. Place the propeller on the gear leg to ensure it is centred and
rotates freely with the same clearance from each blade to the tunnel wall. Place top motor bracket to measure the drive shaft has come through
the motor bracket at the correct height. Remove the gear leg and propeller for fi nal installation.
6. Apply appropriate sealant to both sides of the gasket and place on the gear leg. Place the gear leg in the tunnel (without the propeller).
7. Install the top motor bracket and gear leg gently together. Use appropriate sealant to ensure that no leakages occur. (NB: See your sealant data
sheet for the correct application process.)
8. Fasten the gear leg and the motor bracket with the bolts provided. Fasten to torque as shown above.
MG_0207
PORT STARBOARD
S
P
Tunnel
centre line
Boats
centre line
Bow
Stern
1
STARBOARDPORT
BOW
Tunnel
centre line
Boats
centre line
B
ØC
ØA
BOW
Gasket
Ensure propeller
turns without
obstruction
5BOW
BOW BOW
Apply MS Polymer
sealant or equal to
both sides of the
gasket
Motor bracket
IMPORTANT
Do not apply sealant to
the holes.
6 - 7
2 - 4
8
Measurement
Description
ØA
B
ØC
mm inch
68 2.67
48 1.89
12 0.43
SH 360
SH 400
FASTEN
33 Nm
24 lb/ft
IMPORTANT
Pre-fill gear leg with oil.
API GL-5, SAE 80W-90
IMPORTANT
Ensure that there is some oil or grease on the O-rings in the
motor bracket before mounting it together with the
gear house, as no lubrication could cause serious damage to
the O-rings. The gear leg neck and the inner surface of the
motor bracket must remain clean.

17
6 074 52 0 21
-
SH 400
MG_0207
PORT STARBOARD
S
P
Tunnel
centre line
Boats
centre line
Bow
Stern
1
STARBOARDPORT
BOW
Tunnel
centre line
Boats
centre line
B
ØC
ØA
BOW
Gasket
Ensure propeller
turns without
obstruction
5BOW
BOW BOW
Apply MS Polymer
sealant or equal to
both sides of the
gasket
Motor bracket
IMPORTANT
Do not apply sealant to
the holes.
6 - 7
2 - 4
8
Measurement
Description
ØA
B
ØC
mm inch
68 2.67
48 1.89
12 0.43
SH 360
SH 400
FASTEN
33 Nm
24 lb/ft
IMPORTANT
Pre-fill gear leg with oil.
API GL-5, SAE 80W-90
MG_0152
Tighten to:
SH360/400 - 90Nm
SH700 - 200Nm
SH1000/1400 - 400Nm
IMPORTANT
Ensure propellers marked LH are installed
on the port side and propellers marked RH
on the starboard side. Propellers must be
installed relative to their rotating directions.
A
A
B
C
D
E
Anode &
pin bolts Lock nut
Tab washer
Propeller Holding key
IMPORTANT
Shaft and propeller taper must be 100% clean
before assembling. Apply mounting oil before
assembling propeller to shaft.
Apply Loctite 243 or similar
Propeller Installation
1. Rotate the propeller shaft, so the propeller key is on top. Remove the tape holding the propeller key in its recess on the propeller shaft.
2. Insert the propeller onto the propeller shaft until the propeller key aligns into the slot/ groove in the propeller. (NB: Installation requires almost
no gap (approximately 1mm) between the propeller and the gear leg.)
3. Apply waterproof grease only to the thread where the bolt will be fastened to achieve required torque tension. DO NOT apply grease to the
internal propeller core.
4. Without the washer fasten the propeller lock-nut to the required torque.
5. Remove the propeller lock-nut from the shaft and grease the washer surface facing the propeller lock-nut.
6. Insert the washer on the propeller shaft and re-fasten the propeller lock-nut to required torque tension. (NB: Ensure the washer tab is inserted
into the slot/ groove in the propeller.)
7. Insert the two anode pins on the propeller and the anode to the end of the propeller and fasten the anode holding screw. Apply a thread glue
(Loctite or similar) to ensure that the anode holding screw does not unscrew itself from during the rotation of the propeller.
MC_0022
!Please refer to the graphic for special considerations relating to your model !

18 6 074 52 0 21
-
SH 400
MC_0109
Motor Installation
!Please refer to the graphic for special considerations relating to your model !
1. Install the motor onto the motor bracket ensuring the couplings are engaged together correctly (top and bottom). (NB: The motor can be placed
in all directions on the motor bracket. However, ensure the hose terminals are accessible for connection installation later.)
2. Apply seawater resistant grease on the shafts before fi tting the flexible coupling. Fasten the bolts holding the motor to the motor bracket with the
above torque.
3. Check the drive shafts are engaged by rotating the propeller. (NB: Rotating the propellers can be hard due to the gear reduction and the motor,
however the propeller must be able to rotate via hand power.)
IMPORTANT
The hydraulic motor must be covered to avoid dust from fabrication/ maintenance operation entering the motor hose pipes.
MG_0149
Holding Key
Motor shaft teeth
IMPORTANT
Ensure the holding
key, teeth and
coupling are aligned
when fitted
IMPORTANT
Apply seawater
resistant grease on
shafts and gear leg
before fitting the
flexible coupling
FASTEN
(33 Nm)
(24 lb/ft)
1
2
3

19
6 074 52 0 21
-
SH 400
Oil Tank Installation
1. Install the oil tank above the waterline by at least 20% of the distance from the waterline to the centre of the tunnel. This ensures enough
overpressure for the oil in the gear leg.
2. Install the oil tube from the tank oil tank to the feed nipple on the motor bracket. Fasten the two tube clamp screws. (NB: Ensure the oil tube has
no loops and forms an airlock to stop the oil flow. Ensure the oil tube angle is suffi cient to allow oil to flow freely into the gear leg.)
3. Fill the oil tank with the same gear oil used in the gear leg. The oil tank works as an indicator to ensure there is oil in the gear leg at all times.
(NB: Fill and drain the gear leg simultaneously while replacing the oil to ensure the system is never empty.)
MC_0023
!Please refer to the graphic for special considerations relating to your model !
MG_0046
D
>0,2 x D
Waterline
Oil tank
Oil tube
Feed nipple
Tunnel center line

20 6 074 52 0 21
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SH 400
MG_0159
BACKBONE Cable
Forms the communication and power bus throughout
a vessel. Available in different standard lengths.
*Blue ends
*Blue ends
*Blue ends *Blue ends
*Blue ends
*Blue ends
*Blue ends
*Blue ends
*Blue ends
*Green ends *Green ends
*Green ends
*Green ends
*Green ends
SPUR Cable
Used to connect S-Link compliant products to the
backbone cable. One SPUR Cable must be used for
each connected component, with no exceptions.
Recommended to be as short as practically possible.
Available in different standard lengths.
POWER Cable
Must be one in each system. Connects BACKBONE Cable
to the power supply.
4-Port T-Connector
The 4-PORT T-connector allows multiple SPUR Cables to be
connected. The 4-PORT T-connector comes with two sealing
caps to protect unused ports.
T-Connector
Used for connection of SPUR
or POWER Cable to the
BACKBONE Cable. One
T-Connector for each
connected cable.
BACKBONE Extender
Connects two BACKBONE
Cables to extend the length.
END Terminator
Must be one at each end of
the BACKBONE bus.
+12/24V
GND
Optional ON/OFF Switch Fuse 2A
S-Link installation example
Spur
Power
T-Connector
End
Terminator
End
Terminator
Backbone Extender
Bow Thruster
Control Panel
Backbone Backbone Backbone
SpurSpur
4 Port T-Connector 4 Port T-Connector
Stern Thruster
Automatic
Main switch
S-Link
Power Supply
yellow
red
black
MG_0341
Crossover Valve
Crossover valve must be
mounted as close as
possible to the motor
Valve coil w/ connector
SH 400
1/2” valve
SH 700, 1000, 1400
1” valve