Andersen 28 User manual

Part no.: 710220 - 22. maj 2015 (v5.7)
Compact Electric Winches
Above and Below Deck Electric Compact Motors for
ANDERSEN Winches® 28/40/46/50/52/58/62/68/72ST
Version 5.7

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Manufactured by: Ronstan Denmark ApS. - Jægervænget 36 - 7100 Vejle –Denmark - info@andersenwinches - www.andersenwinches.com

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Manufactured by: Ronstan Denmark ApS. - Jægervænget 36 - 7100 Vejle –Denmark - info@andersenwinches - www.andersenwinches.com
Contents
Safety notices __________________________________________________________3
Safety First ____________________________________________________________4
General Information ____________________________________________________4
Important _____________________________________________________________5
Guideline for use _______________________________________________________5
Installation ____________________________________________________________6
Electrical Installation___________________________________________________10
Circuit breaker safety switch installation ___________________________________12
Circuit breaker safety switch information codes ______________________________13
Important electric installation information__________________________________14
Wiring Diagram Schematic - standard installation____________________________15
Trouble shooting ______________________________________________________16
General Service Instructions _____________________________________________17
Spare parts ___________________________________________________________21
Warranty_____________________________________________________________23
Worldwide Distribution and Service _______________________________________23

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Manufactured by: Ronstan Denmark ApS. - Jægervænget 36 - 7100 Vejle –Denmark - info@andersenwinches - www.andersenwinches.com
Safety notices
DO NOT DISCARD

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Manufactured by: Ronstan Denmark ApS. - Jægervænget 36 - 7100 Vejle –Denmark - info@andersenwinches - www.andersenwinches.com
Safety First
Never work on an energized motor.
An electric winch is very powerful - only competent sailors should operate an electric winch.
Before powering the winch, make sure that children and other crew are standing well clear of not
only the winch but also rope being pulled. Always be wary of what the winch is pulling on, as well
as the rope’s progression to the winch. A rope snagged or jammed on a sail, spar or rigging can
result in dangerous overloading. This is especially relevant when using a primary winch for less
demanding tasks, where the winch is overly powerful for the task at hand.
Under no circumstances should children be allowed to use an electric winch.
General Information
Please read the following prior to the
installation and operation of your new
Andersen Compact Winch motor.
Congratulations on purchasing your new
Andersen Electric Compact Winch. Your new
Andersen Motor is light, powerful and uses
considerably less current than most other
motors. Furthermore all the electronics are
contained compactly in one neat motor unit.
With correct installation your new motor will
offer you many years of trouble free sailing.
For above deck models make sure that the
control switch cable is well protected against
wear as it passes through the deck. Worn cables
can short circuit and disable the motor or cause
it to start without warning.
Magnetic fields in the motor may affect
compasses even when the motor is not in use.
Always install the motor at least a 1 m from
your compass. However, while activated the
motor may affect compasses at greater
distances. Always have your compass
recalibrated after installing your motor.
Andersen Above deck compact
motor with stainless steel sleeve
Andersen Below deck compact
motor with deck plate

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Manufactured by: Ronstan Denmark ApS. - Jægervænget 36 - 7100 Vejle –Denmark - info@andersenwinches - www.andersenwinches.com
Important
The motor is not designed for continuous
extended use. Avoid unnecessary unloaded
running of the motor as this will generate
heat, reducing the running time of the motor.
Installation
Mounting of an Above Deck Compact winch
on a vertical surface is not recommended, as it
increases exposure to potential problems of
excessive moisture and water ingress which
could lead to damage not covered by
warranty. The motor/gearbox unit of any
Above Deck Compact Electric Winch is more
exposed to the elements than a below deck
installation which keeps the motor unit and
gearbox more protected. It is important to
take reasonable precautions to protect the unit
from unnecessary exposure, and carry out
regular seasonal maintenance including the
lubrication of the motor shaft seal. This is
just good seamanship. On commercial and
military vessels, it is common to see exposed
equipment with electric motors and gearboxes
fitted with covers when not in use or to
protect them from heavy spray, etc.
Equipment on yachts deserves the same
proper care.
INCORRECT INSTALLATION WILL
INVALIDATE WARRANTY.
Guideline for use
Please read the following prior to get the best
use of your new Andersen Compact Winch
motor.
Notice safety precautions
Under no circumstances should children be
allowed to use an electric winch.
Main power
When not in use, switch off main power
supply to your Compact motor
Use of an electrified winch
With a motorised winch you have lots of power in
your control; therefore you must be careful and
have attention when using the motorised winch.
The winch will only stop when reaching the
maximum pull limit.
Function
The Compact motor system gives you an
opportunity of having a various line speed on the
sheet. The more you push the control button down –
the more power and line speed you will get.
Control switch with step less speed control
The switch gives the opportunity of step less control
of line speed, simply by pushing the button more or
less down. The more you push the button down, the
more power you release to the motor.
Control switch signal codes
The motor will stop and the switch control light will
flash and the motor stops if:
The winch max load is exceeded.
The motor has an automatic overload cut-off
device, which switches off the motor when the
load reaches a predetermined level. The motor
is automatically reset and can be reactivated
when the load drops below the cut-off level.
The motor max temperature is exceeded.
The motor is deactivated automatically when it
reaches max temperature. Function will revert to
normal once it has cooled down.
Use by more than one control switch.
If your motor has two control switches, only one
can be operated at a time, the one which is out
of control will flash if you try to operate this
together with the other switch.
If the run time is too long.
The flashing light indicates that the winch has
been running for more than
maximum secure run time, and therefore it
stops. If needed you can continue by
reactivating the control switch again.

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Manufactured by: Ronstan Denmark ApS. - Jægervænget 36 - 7100 Vejle –Denmark - info@andersenwinches - www.andersenwinches.com
Installation
If in doubt about how to install your new
Andersen Compact Motor ask a qualified
tradesperson for help.
1. Select the position where the winch is
to be mounted. Make sure that the
surface is even and clean of any
visible dirt as an uneven surface can
damage the motor.
2. Using the template supplied with your
motor carefully drill the required holes
in the deck. Always position the motor
so that the drain hole is at the lowest
position in relation to the slope of the
deck. This is particularly important for
mast installations.
3. For below deck models, bolt the deck
plate in place and go to step 9. For
above deck models go to step 4.
4. For above deck models remove the
stainless
steel sleeve.
Ensure that
the 2 o-rings
on the top
and side of
the motor
are sitting in
their
relevant
grooves.
5. Attach the terminal extensions to the
power terminals (tighten with max
12Nm torque). Ensure that the red
extension is connected to the red
positive terminal and the black
extension to the black negative
terminal. The terminal extensions can
be shortened to suit your deck
thickness.
6. Connect the drain hose, and make sure
that the hose has continuously fall
from the motor to its end, so no water
can be kept in here. The drain hole is
both a breathing hole for the motor
and an outlet for any condensation water in
the motor (which should not exceed more
than a few drops per week). If the motor is
situated in a position where damage of boat
linings or other equipment could occur then
lead the hose to the bilge, sink or another
appropriate outlet. In most cases, this does
not apply and the hose can be cut off just
below the deck
7. Thread the control cable, terminal
extensions and drain hose through the deck
and bolt the motor to the deck inserting the
plastic washer provided between the deck
and motor. The bolts are not included with
the motor.
For 52/58/62ST: Use ISO 4762-A4-70-M6
bolts, length 78mm + thickness of the deck
+ thread.
For 68/72ST: Use ISO 4017- A4-70-M10
bolts, length 81mm + thickness of the deck
+ thread, or M10 bolts mounted from below.
Always use corresponding nuts where
possible. Avoid using threaded aluminium
plate, as aluminium may not have the
required strength. All threads must be at
least as strong as the corresponding stainless
steel nut. When inserting the bolts place a
small amount of silicone under the bolt head
to ensure that water does not run down the
bolts and under the motor. The base of the
motor should also be sealed with silicone so
that water on the deck cannot run beneath
the motor.
For 68/72ST: 2 control buttons are needed!
Cable extensions in
red and black for
Above deck motors
Special information
for 52/58/62
Above deck models
These models are
installed with 10mm
studs in the base of the
motor. The Ø6,2mm
boltholes must be
counter sunk 10,2mm x
11mm deep into the deck

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Manufactured by: Ronstan Denmark ApS. - Jægervænget 36 - 7100 Vejle –Denmark - info@andersenwinches - www.andersenwinches.com
Detail A
Ø11
11
Winch 68ST AD
Winch 52/58/62ST AD
Winch 46/48ST AD
Winch 28/40ST AD
Not Supplied
Deck
Deck
Deck
Ø6,2
Not Supplied
Not Supplied
Not Supplied
Deck
Alternatively is to
place hexagon nut
on top of the gear
house and mount
bolts from belowe
deck
Mounting sketches for Above deck
Winch 28/34/40ST AD
Winch 46/50ST AD
Winch 52/58/62ST AD
Winch 68/72ST AD

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Manufactured by: Ronstan Denmark ApS. - Jægervænget 36 - 7100 Vejle –Denmark - info@andersenwinches - www.andersenwinches.com
Free running axel
(Not used on 28ST & 40ST
models. For 68ST 2 axels
pre-mounted in the winch)
Variable speed switch
Drain hose
Above deck motor with o-
rings top & side
Stainless steel sleeve
Circuit breaker with
thermo cut-out
Extension cable
8. Replace the stainless steel sleeve,
checking that the o-rings are in place and
are lightly greased. Place the free running
axel in the Ø30mm bearing on the top of
the motor. (The free running axel is not
used on 28ST and 40ST winches. For
68/72ST models the free running axels
are pre-mounted in the winch.) Make
sure that the bearing hole and the gear
wheels are greased. Please note that the
axle may run tightly before the motor is
run in. Go to step 12.
9. With the deck plate securely in place,
remove the mounting nut and push the
top of the motor up through the deck and
the deck plate*. Re-secure the mounting
nut on top of the deck. This may require
two people to complete if the motor
cannot be supported by another device.
For 52/58/62/68/72ST winches you need
to remove the gear wheel on the top of
the motor to be able to push the top of the
motor through the deck plate. To do this,
remove the circlip from the top of the
gear wheel, then slide the gear off the
axle. Remount the gear once the motor
has been installed through the deck.
10. With the tool provided tighten the
mounting nut on top of the deck.
11. Tighten the small hexagon locking screw
on the mounting nut.
1. Place the
mounting
nut over the
axle.
2. With the
tool
provided
tighten the
nut firmly.
3. Lock the
mounting
nut by
tightening
the screw on
nut’s top
side.

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Manufactured by: Ronstan Denmark ApS. - Jægervænget 36 - 7100 Vejle –Denmark - info@andersenwinches - www.andersenwinches.com
* Important Installation Information for
below deck motors!
It is extremely important that your motor is
aligned with your winch. Non-aligned motors
will be noisy and gear wear will be accelerated.
To ensure correct alignment, the motor flange
must be flush with the deck plate and the eight-
sided nut must fit snugly into the octagon in the
deck plate.
This can be achieved with the help of the
following:
Drill a hole through the deck which is
wider than the motor flange. When
mounted, there must be free space
between the deck and the flange.
Clean the deck hole before attempting the
install the motor so that during insertion
through the deck, the motor flange does
not catch splinters of fiberglass or wood.
Ensure that the underside of the deck
plate is clean and free from resin, varnish
or sealants.
Do not use a sealant between the flange
and deck plate. An o-ring ensures a
waterproof connection.

Extra waterproofing can be achieved by
applying sealant to the top of the deck
plate next to the mounting nut after
installation.
Ensure that the o-ring on top of the gear
unit is placed in its groove
Before tightening the mounting screw,
ensure that the locking screw on the
mounting nut is not protruding beyond
the contact surface. Tighten the locking
screw when the mounting nut is securely
in place.
12. Place the winch on the deck plate for
below deck models or on the motor for
above deck models. With the provided
aligning pins in place, bolt the winch in
place with the bolts provided. Without
the aligning pins, the gears connecting
the winch to the motor may not run
smoothly. The pins are inserted through
the holes in base plate of the winch and
Deck plate
Motor
flange
Deck
Mounting nut
Locking screw
The motor flange must
sit flush with the deck
plate here.
Deck hole
larger than
flange
Mounting nut
Deck plate
Gear wheel
Below deck motor
Variable speed
switch
Note: The pictured motor is
for a 52 ver.2.5. The
connecting gear on the top of
the motor may be different for
other winch sizes
Extension cable
Circuit breaker with
thermo cut-out

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Manufactured by: Ronstan Denmark ApS. - Jægervænget 36 - 7100 Vejle –Denmark - info@andersenwinches - www.andersenwinches.com
into the deck plate or above deck motor
case. It may be necessary to tap the pins
in with a small hammer. (For 28ST /
34ST & 40ST the pins are secured during
manufacturing)
Note: for 28ST Below Deck Compact Motors
only 4 bolts are used to secure the winch. One
hole on the winch base is not used.
13. Place the winch drum on the winch base
and secure the self-tailing arm.
14. Spin the drum with your hand and
operate the winch manually with the
normal handle. The winch should turn in
both gears without great resistance. If this
is not the case, repeat steps 12-14.
Electrical Installation
Due to the special design of the motor, incorrect
electrical installation will result in permanent
damage to the motor and invalidation of any
warranty. If in doubt regarding any aspect of the
installation seek assistance from a qualified
tradesperson.
Always apply the relevant voltage to your
motor.
Always use the Andersen circuit breaker
provided, wired as described in the
wiring diagram
Never alter any part of the motor
including switches and control cables.
The motor may only be installed as
delivered. Any changes made to the
motor invalidate the warranty.
There are no user serviceable parts in the
motor. In case of any mal-function
contact your Andersen dealer.
Never work on an energized motor.
Positive
red
terminal
Control
switch
cable
Negative
black
terminal
Motor thermo
sensor wires

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Manufactured by: Ronstan Denmark ApS. - Jægervænget 36 - 7100 Vejle –Denmark - info@andersenwinches - www.andersenwinches.com
1. Determine the location of the circuit
breaker. The circuit breaker should be
mounted vertically, close to the battery
and in an easily accessible position. (See
also Circuit breaker safety switch
installation on next page).
2. Measure the distance from the battery to
the motor (and back) via the circuit
breaker to determine the necessary total
cable length and thickness (see wiring
diagram). The cable should be as short as
possible to minimise voltage drop from
the battery to the motor. A thicker cable
(than suggested in the wiring diagram)
will also reduce voltage drop.
IMPORTANT WARNING Reverse
installation of the power cables will
permanently damage the motor.
3. Connect the negative black terminal on
the motor (tighten the terminal bolts with
max 12Nm torque) to the negative
terminal on the battery.
4. Connect the red positive terminal on the
motor (tighten the terminal bolts with
max 12Nm torque) to the circuit breaker
end marked “winch” (tighten breaker
circuit bolts with max 5Nm torque).
Connect the other end of the circuit
breaker “power” to the battery (ensure
the circuit breaker is in the “OFF”
position). A low amperage switch can be
installed on your control panel with the
help of a solenoid relay as described in
the wiring diagram. Appropriate solenoid
relays are available from your Andersen
dealer.
5. Determine the position of the switch (es),
and drill the appropriate
hole(s)(Ø25mm).To avoid accidentally
activating the wrong winch and the risk
of subsequent personal injury or damage
to equipment, it is recommended that
switches be mounted in close vicinity to
the winch.
6. Connect the switch control cable
extension to the motor and then push the
other end up through the switch hole in
the deck. Attach the cable to the switch
(with the switches rubber gasket in
place). Position the switch and screw it in
place. (Do not block the breather hole on
the side of the switch) The motor is
provided with 1m of cable. If longer
cable is required, contact your Andersen
dealer for an extension cable.
7. When cleaning, don't use solvents on the
cables. It can cause serious injuries. Instead
use ethanol for cleaning.
NOTE: Care must be taken that the breather
hole on the side of the switch, is not blocked.
The breather hole is either a Ø2 mm hole, or a
milled 2mm track.

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Manufactured by: Ronstan Denmark ApS. - Jægervænget 36 - 7100 Vejle –Denmark - info@andersenwinches - www.andersenwinches.com
Circuit breaker safety switch installation
The Compact motor is supplied with a special circuit breaker safety switch for the Compact motor
installation. The circuit breaker safety switch is fitted with a PCB (Print Circuit Board), which shall
be connected as described below. The system is a combined safety switch and PCB makes a reliable
circuit protection for the motor installation.
The safety switch system monitor: system conditions and cuts off the power if any error occurs.
Notice that the circuit breaker shall be placed very near the battery –see wiring diagram.
Circuit breaker installation
To install the switch, extend and
connect the 2 yellow wires from the
motor to the “TER. SW” connectors
on the back of the circuit breaker.
Connect the negative battery terminal
to the “MINUS” connector on the
back of the circuit breaker (0.75mm²
wire).
When installed correctly the green
diode light will turn on and off when
the circuit breaker is on and off.
Notice: when turning off the switch
the green diode will turn off with a
little delay of a few seconds.
oIf the green light remains on when in
the “OFF” position the terminals to
the battery and winch need to be
swapped.
oIf no light is present check the con-
nection to the “MINUS” terminal
oIf all light is flashing the PCB
connection is wrong and the
“MINUS” terminal is missing
oMake sure all wires are connected
correct
Terminal to battery+
power (tighten the
terminal bolts with
5Nm torque).
Terminal to motor+
power (tighten the
terminal bolts with
5Nm torque)
Connect the extended cables from
the yellow wires on the motor
here.
Yellow diode light.
Flash the error type
when an error occurs
Connect minus from the battery
here.
Notice: You can TYPICAL add maximum a 50mm² tubular cable lugs on the circuit breaker -
this is regarding the free space around the print circuit board.
Be sure that cable lug, washers etc, doesn’t touch the print circuit board when installed.
Red diode light.
Lights when an
serious error occurs
Green diode light.
Lights when the circuit breaker
is “ON”, and no errors present

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Manufactured by: Ronstan Denmark ApS. - Jægervænget 36 - 7100 Vejle –Denmark - info@andersenwinches - www.andersenwinches.com
Circuit breaker safety switch information codes
The circuit breakers printed circuit board (PCB) is fitted with 3 LED (diodes) –green, yellow and
red color –see photo on the previous page.
The LED’s gives information function about the actual drift, they have the following function:
Green: normal operation. The LED lights constant for 5minutes, and flashes
afterwards
Yellow: a error has occurred, the number of flash tells the error type
Red: a serious error has occurred, count the yellow flash for error type
Green LED
The green color LED alone indicates that there is power on, when circuit breaker is “ON” and
everything is ok. The green LED lights constant light from start (power up), and starts flash for
every 20 seconds after 5 minutes.
Yellow LED
Yellow LED flash indicates errors. Every error type has a number and by counting the flash when
an error occur the error number can be detected. The error type will be flashed for every 20sec. –
count the flash and see the table for error type.
The yellow LED is the normal error count LED that tells what error tripped the circuit breaker.
General is the higher error number equal to more serious errors
Red LED
If the red LED flash, when yellow is off, a very serious fault is present, count the yellow flash.
Either it’s because that:
the circuit breaker can not be tripped by the PCB,
the yellow wires from the motor thermo switch has an interrupt,
the electric connection to the PCB main +motor and +battery is wrong.
Errors codes –count the numbers of flashes on the circuit breaker yellow LED:
3 Battery voltage higher than limit at power up, check battery charger
4 High current consumption at power up, check for failure
5 Extremely low voltage, check battery charger and electric installation
6 Low voltage, check battery charger and electric installation
7 Low continuously current consumption (15min or more), check electric installation
8 High continuously current consumption (8 min or more), check electric installation
9 High voltage, during motor running, check battery charger
10 High voltage, check battery charger
11 Extremely high voltage, check battery charger and electric installation
13 Thermo switch in motor activated, or could also be damaged wiring
14 Wrong PCB connection, switch over +motor and +battery cable on breaker

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Manufactured by: Ronstan Denmark ApS. - Jægervænget 36 - 7100 Vejle –Denmark - info@andersenwinches - www.andersenwinches.com
Important electric installation information
Incorrect system polarity will permanently damage the motor
To protect your Compact motor, make sure that the power is
supplied through the circuit breaker unit (delivered with your
compact motor)
Notice that the circuit breaker shall be placed near the battery –
see wiring diagram.
Make sure that the thermal cut out protection in the motor (yellow wires) is connected via
extension cables to the circuit breaker printed circuit board
Observe that the wiring dimensions given on the wiring diagram are met.
You can use shorter and / or thicker wires than indicated –but never longer and thinner
No other devices than the provided circuit breaker (and possible main fuse
>160 A, and / or main switch) must be installed between the compact motor terminals and the
battery terminals
No other devices than the Compact motor must be connected to the circuit breaker.
Never supply the motor from an external power supply but exclusively from the battery. For
12V motors the supply voltage must be within 10,5V-15,5V. For 24V motors the supply voltage
must be within 21V-28,5V
If the battery is charged from the grid, disconnect the circuit breaker or main switch to avoid
electronic damage on the motor caused by high voltage spikes
Check that the (unloaded) voltage of any generator(s) does not exceed 15,5V for 12V systems -
and 28,5V for 24 V systems. Be sure that the alternator does not charge with higher voltage than
15,5 (12V system) or 28,5 volt (24volt system)
Never alter control cable wiring
Always disconnect the power when not in use to avoid accidental activation.
See wiring diagram on the next pages.
Any deviation from the above listed instructions will
invalidate the warranty!

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Manufactured by: Ronstan Denmark ApS. - Jægervænget 36 - 7100 Vejle –Denmark - info@andersenwinches - www.andersenwinches.com
Wiring Diagram Schematic - standard installation
Compact Motor with
intergrated control.
Circuit breaker with
intergrated motor
temperature cut-out.
Switch with variable
speed control
12V or 24V battery
Control wiring 2x0.75mm²
Cable size :
(same for 12V and 24V)
Up to 10m total length
of + and -: 25mm²
10m to 15m total length
of + and -: 35mm²
15m to 20m total length
of + and -: 50mm²
Total lenght means:
from battery to motor and
back to battery again!
Install circuit breaker
as close as possible
to battery
CIR. BR.
MINUS
TER. SW.
Important: Read electric installation information on p.13

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Manufactured by: Ronstan Denmark ApS. - Jægervænget 36 - 7100 Vejle –Denmark - info@andersenwinches - www.andersenwinches.com
Trouble shooting
Fault
Check
Action
Motor stops and the light in
the motor control switch
flashes
The motor has reached the max load limit
Release the button and run the winch with
less load
The motor circuit has reached max
temperature, which is app 60°C
When the temperature falls within the
accepted range, the motor will function
normally. Let the motor cool off till its
ready to operate again
The flashing light in the motor control
switch indicates that the winch has been
running for more than
4¼ minute
Release the button and start over again.
Check that the motor control switch cable is
not damaged or worn
Replace cable is necessary
The motor does not run,
there is no light in the
motor control switch
Check that the circuit breaker and main
power switch are in the “ON” position
If “OFF” turn “ON”
Check the voltage supply at the motor
Check terminal connections
Check that the motor control switch is
connected to the motor
Connect the switch
The motor does not run
when activating the motor
control switch but there’s
light in the switch
Check that the voltage supply to the motor
terminals is correct
When the correct voltage is available, the
motor function shall be normal
Check that the switch cable is not worn or
damaged in any place
Replace cable if possible
The circuit breaker trips
straight away after being
reset
Error code on the circuit breaker, see
chapter: Circuit breaker safety switch
information codes
Depending on the error code action has to
be taken.
Check that the voltage at the breaker is
correct
Charge or change battery
Check terminal connections
When the correct voltage is available, the
breaker can be reset
Check the connections and wiring from the
motor thermo sensor to the circuit breaker
printed circuit board
If the thermo-sensor is not connected the
breaker will trip. Re-connect the wire and
replace if damaged
Check that the motor hasn’t overheated. If
over 70ºC the motor thermo sensor will turn
the circuit breaker “OFF”
When the motor cools the circuit breaker
can be re-set. If the problem re-occurs
contact your Andersen dealer for service.
The circuit breaker trips
when using the winch
Error code on the circuit breaker, see
chapter: Circuit breaker safety switch
information codes
Depending on the error code action has to
be taken.
There is no light or flashing
in the green diode on the
back of the circuit breaker
when it is switched “ON”
When there is no light from the circuit
breaker important safety features will not
function. Check that the “MINUS” supply
to the circuit board is not broken or
damaged.
Reattach the “MINUS” wire to the minus
terminal on the print
The printed circuit board on the breaker
can be damaged, replace it with a new
print circuit board.
The circuit breaker trips
and no error code is present
on the diodes
The current consumption is higher than the
rated current consumption on the circuit
breaker, therefore it cuts off
Check the installation for faults
Below-Deck Only:
Water drips from drain
holes near base of through-
deck extension tube.
Water ingress at output gear shaft seal.
Perform recommended lubrication of seal,
or replace seal if necessary.

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Manufactured by: Ronstan Denmark ApS. - Jægervænget 36 - 7100 Vejle –Denmark - info@andersenwinches - www.andersenwinches.com
General Service Instructions
PERIODIC LUBRICATION OF THE MOTOR OUTPUT SHAFT SEAL
In order to avoid potential sea water intrusion and to increase the lifetime of your Andersen electric
winch motor drive, we recommend re-lubrication of the output gear shaft seal once a year.
Remember: Always shut off power to the winch before commencing any service or maintenance task!
To access the seal for lubrication, it is necessary to remove the winch from the motor for Compact
Electric Above Deck motors (fig.1), or from the stainless steel deck adaptor plate used for motors
fitted below deck (fig.2 and fig.3). On current model winch sizes 46-50-52STE this deck adaptor
plate is an integrated part of the winch base, and you’ll only need to remove the upper winch base part
as you do for normal winch maintenance.
A high quality bearing grease such as Klüber ISOFLEX TOPAS NB 52 (see details at
http://www.klueber.com/en/product-detail/id/312/) is ideal for lubrication of this seal, although
Andersen Winch Grease is also suitable.
Compact Electric Above Deck Compact Electric Below Deck

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Manufactured by: Ronstan Denmark ApS. - Jægervænget 36 - 7100 Vejle –Denmark - info@andersenwinches - www.andersenwinches.com
Below deck Motors 28-72ST
(Ø195 & Ø250)
1. With the unit removed from the boat unscrew the 6 or 8 bolts from the bottom of the motor.
2. Separate the motor unit from the gear unit by lifting the gear unit up. If difficult to separate, tap
the gear house with a plastic hammer while pulling apart.
3. Clean the top of the motor including the gear, re-lubricate the gear with Andersen Winch Grease
Andersen Winch Grease and place it to one side.
4. With the shaft pointing up, remove the 6 bolts connecting the flange to the gear housing, and
remove the flange and the shaft.
5. Remove the pawls and springs.
6. Clean all parts and check for excessive wear.
7. Reassemble the shaft assembly applying a thin coat of Andersen winch grease and mount new
pawls and springs –place to one side.
8. Clean the shaft base and the surrounding ball bearings on the gear housing. Do not remove the
bearings.
9. Re-lubricate the bearings and shaft base
10. Reattach the shaft and flange onto the gear housing.
11. With the flange attached turn the motor so the flange is pointing down.
12. Supporting the motor, clean and Re-lubricate the gears with Andersen Winch Grease.
13. Reattach the motor to gear unit. (Use the bolts to help align the motor to the gears)

19
Manufactured by: Ronstan Denmark ApS. - Jægervænget 36 - 7100 Vejle –Denmark - info@andersenwinches - www.andersenwinches.com
Above deck Motors 28/40ST
(Ø195)
1. With the unit removed from the boat
take off the stainless steel cover and
unscrew the 2 bolts from the top of the
unit.
2. Remove the motor unit from the gear
unit. If difficult to separate, tap the gear
house with a plastic hammer while
pulling apart.
3. Clean the top of the motor including the
gear, re-lubricate the gear with Andersen
winch grease and place it to one side.
4. Place the gear housing upside down on 2
blocks so that the centre plate on the
gear housing is supported by the blocks
5. Remove the 6 bolts from the crown gear.
6. Carefully remove the crown gear, clean
and place it to one side.
7. Clean and lubricate the planet gears
8. While taking care to hold the top of the
gear housing, turn the motor around.
9. Pull the top plate out by attaching two
bolts and pulling upwards.
10. Remove the connecting ratchet shaft.
11. Remove the pawls and springs.
12. Clean all parts and check for excessive
wear.
13. Reassemble the ratchet shaft assembly
lubricating lightly with a thin coat of
Andersen winch grease and mount new
pawls and springs –place to one side.
14. Clean the shaft base and the surrounding
ball bearings on the gear housing. Do
not remove the bearings.
15. Re-lubricate the bearings and shaft base
16. Check seals and o-rings for wear and
replace if necessary.
17. Place the ratchet shaft in the shaft base
and replace the top plate checking that
the o-ring is sitting in its groove.
18. While taking care to hold the top plate
of the gear housing, turn the motor
around and support the plate with 2
blocks.
19. Reattach the crown gear using a locking
liquid on the bolts
20. Re-connect the motor unit to the gear
unit. Replace the gasket if damaged. Use
the bolts to align the motor to the gear
unit.