This manual gives technical information on winch installation and maintenance, including
disassembling and reassembling.
This information is DESTINED EXCLUSIVELY for specialised personnel or expert users.
Installation, disassembling and reassembling of the winch by personnel who are not experts may
cause serious damage to users and those in the vicinity of the winch.
Harken® accepts no responsibility for defective installation or reassembly of its winches.
In case of doubt the Harken
This Manual is available only in English. If you do not fully understand the English language, do
not carry out the operations described in this Manual.
Technical characteristics
®
Tech Service is at your disposal at techservice@harken.it
Power ratio Gear ratio
1st speed
2nd speed
The theoretical power ratio does not take friction into account.
13,50 : 12,13 : 1
35,90 : 15,65 : 1
Performance data
Winch 35.2 ST E (electric)
horizontal motor
12 V (700 W)24 V (900 W)
1st speed2nd speed1st speed2nd speed
line speed (m/min)**
max load (Kg)
**Line speed is measured with no load
23,28,829,211
260650260650
motor nominal power (W)
12 V24 V12 V24 V
current absorption at
winch MWL (A)
winch 35.2 ST E horizontal70090017090
Radial Winch
35.2 ST E/HY
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Installation and Maintenance Manual
Page 4
Weight
weight (Kg)
Versions:
A = drum in anodised aluminium
C = drum in chrome bronze
CW = chrome/white
BBB = all bronze
CCC = all-chrome bronze
EH = horizontal electric winch
Maximum working load
WARNING!
The maximum working load (MWL) for the 35.2 ST Radial Winch is 650 Kg (1433 lb).
Subjecting the winch to loads above the maximum working load can cause the winch to fail or
pull off the deck suddenly and unexpectedly during high loads causing severe injury or death.
ST A EHST C/CW EHST BBB EHST CCC EH
13,314,515,215,2
Radial Winch
35.2 ST E/HY
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Installation and Maintenance Manual
Page 5
Outline
Ø80,5
Ø149
Ø80,5
Ø156
Winch 35.2 ST E/HY
Ø80,5
170
80
Line entry height
Ø149
Horizontal electric motor (12 V / 24 V)
Ø149
Ø80,5
170
80
Line entry height
43
Radial Winch
155
35.2 ST E/HY
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Installation and Maintenance Manual
Page 6
Installation
Installation
The winch must be installed on a at area of the deck, reinforced if necessary to bear a load equal to
at least twice the maximum working load of the winch.
It is the installer's responsibility to carry out all structural tests needed to ensure that the deck can
bear the load.
Harken® does not supply the screws needed to install the winch since these may vary depending on
the deck on which it is to be installed.
It is the installer's responsibility to choose the correct screws taking account of the loads they will
have to bear.
Harken® assumes no responsibility for incorrect installation of its winches or for an incorrect choice
of mounting screws.
DANGER!
Incorrect installation of the winch may cause severe injury or death. Consult the yard that built
the boat in the case of doubt over the correct positioning of the winch.
WARNING!
Failure to use the correct number and type of mounting fasteners or failure to ensure the correct
deck strength can result in the winch pulling off the deck suddenly and unexpectedly during high
loads causing severe injury or death.
WARNING!
Verify the entry angle of the sheet. This must be 8° with tolerance of ±2°,
to avoid sheet overrides and damaging the winch or making the winch
inoperable leading to loss of control of the boat which can lead to severe
injury or death.
WARNING!
Mount the winch on the deck so that the drive gear is positioned where
the sheet enters the winch drum.
Incorrect position of drive gear can weaken winch leading to failure which
can cause an accident leading to severe injury or death.
NOTICE
For winch STA, STC and STCW versions only
You can find the icon on the skirt to identify
the drive gear position.
After correctly positioning the nal drive gear with respect to the load, check that the motor, gearing,
electrical wiring and/or hydraulic pipes can be housed below decks. To help nd the optimal
compromise, remember that, to make the installation of the motor easier, It can be
coupled to the winch in different positions.
SHEET
drive gear
8°
Once you have decided the correct mounting position for the winch on the deck and checked the
space available below deck, proceed with the installation.
Radial Winch
35.2 ST E/HY
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Installation and Maintenance Manual
Page 7
The winch can be installed following one of the two procedures below (Procedure1 or Procedure 2):
Procedure 1
To install the winch you must remove the drum and use Socket Head (SH) bolts.
Tools needed: One medium at-bladed screwdriver
To identify the various parts, refer to the exploded view at the end of this Manual.
Torque to apply when assembling
1. Pull out the disconnect rod n°30
3. Slide off the assy socket n°28 and the cover
n°29.
Pay attention to the o-ring in the socket.
2. Unscrew the central screw ( 2Nm/18 in-lb)
4. Unscrew the three screws n°27
(
4Nm/35 in-lb)
Radial Winch
35.2 ST E/HY
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Installation and Maintenance Manual
Page 8
5. Remove the self-tailing arm n°26 by rotating
and lifting it.
6. Lift off the drum n°22
Install the winch on the deck in the position you have chosen, keeping in mind
the limits described on page 6 and using socket head (SH) bolts.
Procedure 2 (not pertinent for ST BBB/CCC versions)
To install, you must remove the winch skirt and use hexagonal headed (HH) bolts.
Tools needed: One medium at-bladed screwdriver
To identify the various parts, refer to the exploded view at the end of this Manual.
See (paragraph on installation) the limits described on page 6 and using socket head (SH) bolts.
Torque to apply when assembling
1. Remove the skirt n°2 with the help of the
screwdriver placed as shown by the symbol
Radial Winch
35.2 ST E/HY
2. Take off the base n°2
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Installation and Maintenance Manual
Page 9
3. Position the 5 M6 hexagonal headed bolts
in their holes
4. Reposition the skirt n°2 in its housing
NOTICE
Make sure the skirt is correctly clipped on to the base of the winch.
Install the winch on the deck in the position you have chosen, keeping in mind the limits described
on page 6 and using hexagonal headed bolts.
(See paragraph on winch installation)
5. Press down the skirt to position it correctly
Radial Winch
35.2 ST E/HY
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Installation and Maintenance Manual
Page 10
Winch installation procedure
Carry out Procedure 1 or Procedure 2, then install the winch on the deck in the chosen position.
NOTICE
Before drilling the deck, check the space available below deck for the ange and the motor
A. Position the base of the winch on the deck and mark the position of the holes or use the
drilling cut-out template at the point where you have decided to place the winch.
Below is a reduced scale diagram.
50°
105°
Ø80 cut out for
powered winches
final pinion
70°
Winch outside Ø149
35°
Ø6
n°5
50°
50°
Ø123
position
The drilling cut out template is available on the Harken® website, www.harken.com
B. Remove the winch and drill the ve 6.2 mm and a 80 mm diameter holes.
C. Bolt the base of the winch to the deck using ve M6 bolts (not supplied by Harken
®
) as
described at Procedure 1 or Procedure 2, correctly chosen for the thickness and type of the boat
deck. Consult the yard that built the boat in case of doubt.
WARNING!
To install the winch on the deck, use only bolts in A4 stainless steel (DIN 267 part11).
Bolts made of other materials may not have sufficient strength or may corrode which can result in
winch pulling off deck suddenly and unexpectedly during high loads causing severe injury or death.
NOTICE
To mount winches on the deck, do not use countersunk bolts.
D. Fill the mounting holes with a suitable marine sealant.
E. Remove the excess adhesive/sealant from the holes and base drainage channels
F. Reassemble the winch following the steps in Procedure 1 or Procedure 2 in the reverse order,
and apply the products indicated in the section on maintenance.
Radial Winch
35.2 ST E/HY
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Installation and Maintenance Manual
Page 11
NOTICE
Before closing the winch, make sure the holes and drainage channels in the base of the winch
are not obstructed.
Positioning the self-tailing arm
Position the self-tailing arm so that the line leaving the winch is led into the cockpit.
Motor installation procedure
WARNING!
Make sure that the power is switched off before installing or carrying out maintenance on
the winch.
Once you have installed the winch on the deck, proceed with motor installation. The motor can be coupled
to the winch in different positions. Check the space available below deck and choose the suitable position.
Tools needed
A number ve hex key
A number six hex key (only for vertical electric motor)
A number ten hex key (only for hydraulic motor)
Two number thirteen wrenches
1. Position the ange (see Page 12)2. Tighten six M6 precote coated screws
3. Position the reduction gear and motor
Radial Winch
35.2 ST E/HY
( 8 Nm/ 71 in-lb)
4. Tighten the two screws (
Be sure to align the ange.
11
Installation and Maintenance Manual
8 Nm/ 71in-lb).
Page 12
NOTICE
Before positioning the ange, check to
make sure that seals (the rst one is above
the ange and the second one is under the
ange) are seated correctly.
After winch is assembled and before sailing, test the powered winch functioning: insert the lock-in
winch handle in the handle socket and check that the disconnect rod must disconnect gearbox.
Electric wiring diagrams
To guarantee greater efficiency in terms of safety and long life, for every winch model is mandatory
to install the Dual Function Control Box.
For more information, refer to the Dual Function Control Box manual.
Refer to the following diagrams for the electric wiring:
WARNING!
Read the Dual Function Control Box manual carefully before installing and using the device.
NOTICE
For other installations, refer to the Dual Function Control Box manual.
Radial Winch
35.2 ST E/HY
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Installation and Maintenance Manual
Page 13
Fasten the Dual Function Control Box containing solenoids to bulkhead or wall: refer to the
Dual Function Control Box manual. Install remote circuit breaker between power supply
and Dual Function Control Box. Locate push-buttons on deck in a convenient spot for easy winch
operation: refer to the Digital System Switch manual.
Refer to the following chart for wire size:
Total distance between winch and battery
Winch
size
40.212 V232050007000095
40.224 V516325235050
Current
voltage
Under 16.4 ft
AWG
Under 5 m
2
mm
16.4 - 32.8 ft
AWG
5 m - 10 m
2
mm
32.8 - 49.2 ft
AWG
10 m - 15 m
2
mm
49.2 - 65.6 ft
AGW
NOTICE
To connect motor, attach cable terminals to clamps
between nut and lock nut. Hold nut in contact
with motor using a spanner and tighten other nut
with second spanner. Take special care not to
turn the central spindles. Be careful not to turn
central spindles. These instructions apply when
assembling and disassembling. We recommend
using a torque wrench so as to obtain a torque
equal to and no greater than 10 Nm (88 in-lb).
15m - 20 m
2
mm
NOTICE
Note that correct electrical contact sequence is:
Nut – Cable Terminal – Self-Locking Washer –
Lock Nut
Radial Winch
35.2 ST E/HY
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Installation and Maintenance Manual
Page 14
Maintenance
Maintenance
Washing
Winches must be washed frequently with fresh water, and in any case after each use.
Do not allow teak cleaning products or other cleaners containing caustic solutions to come into
contact with winches and especially anodised, chrome plated or plastic parts.
Do not use solvents, polishes or abrasive pastes on the logos or stickers on the winches. Do not
use polishes or abrasive pastes on anodised, chromed plated or plastics surfaces.
Make sure that the holes and drainage channels in the base of the winch are not obstructed so
that water does not collect.
Maintenance table
Winches must be visually inspected at the beginning and end of every season of sailing or racing.
In addition they must be completely overhauled, cleaned and lubricated at least every 12 months.
After an inspection, replace worn or damaged components. Do not replace or modify any part of
the winch with a part that is not original.
WARNING!
Periodic maintenance must be carried out regularly. Lack of adequate maintenance shortens
the life of the winch, can cause serious injury and also invalidate the winch warranty.
Installation and maintenance of winches must be carried out exclusively by specialized
personnel.
WARNING!
Make sure that the power is switched off before installing or carrying out maintenance on
the winch.
In the case of doubt contact Harken® Tech Service at techservice@harken.it
Disassembly procedure
Tools needed:
One medium at-bladed screwdriver
A number ve hex key
Brush
Rags
To identify the various parts refer to the exploded view at the end of this Manual.
Torque to be applied in assembly phase
Carry out Procedure 1 as shown in the paragraph on winch installation and then do the following:
Radial Winch
35.2 ST E/HY
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Installation and Maintenance Manual
Page 15
6. Completely unscrew the three screws n° 27
and remove the stripper arm support n°21
7. Slide out the central shaft n°19
8. Unscrew the 6 hex screws n°16
( 20Nm/177 in-lb)
10. Remove the washer n°1211. Remove the gear n°7
9. Remove the assy housing n°15
Important: washer n°12 may remain inside the
drum support!
Radial Winch
35.2 ST E/HY
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Installation and Maintenance Manual
Page 16
12. Remove the pawls carrier n°4
13. Remove the gear n°3
14. Remove the gear n°14
16. Remove the pawls carrier n°11
15. Remove the gear n°10
18. Remove the washer n°9
Radial Winch
35.2 ST E/HY
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Installation and Maintenance Manual
Page 17
If it is necessary to replace any jaws of the winch, proceed as follows:
I. Unscrew the 4 screws n°25
(
4Nm/35 in-lb)
Once the winch is completely disassembled, clean the parts: use a basin of diesel oil to soak
metal components and rinse plastic parts in fresh water. Once you have done this, dry the parts
with cloths that do not leave residue.
Inspect gears, bearings, pins and pawls for any signs of wear or corrosion.
Carefully check the teeth of gears and ring gears to make sure there are no traces of wear.
Check the roller bearings and check there are no breaks in the bearing cages.
Replace worn or damaged components.
Carry out maintenance on components using the products listed below.
For more information on which products to use where, refer to the exploded diagram below.
Use a brush to lightly lubricate all gears, gear pins, teeth and all moving parts with grease.
Lightly lubricate the pawls and springs with oil. Do not use grease on the pawls!
II. Remove the jaws n°24
Radial Winch
35.2 ST E/HY
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Installation and Maintenance Manual
Page 18
Exploded view with maintenance products
1
G
G
A
A
Anti-seize
A
Harken® Grease
G
Harken® Pawl Oil
O
A
G
G
2
G
G
G
G
A
G
O
O
G
G
1. Apply Harken® grease on assy socket screw - 2. Apply Harken® grease on drum gear
Radial Winch
35.2 ST E/HY
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Installation and Maintenance Manual
Page 19
Assembly
Make sure that the holes and drainage channels in the base of the winch are not obstructed.
Assemble the winch in the reverse order of the sequence in the section on disassembly.
To tighten bolts, use the torque indicated in the disassembly procedure.
When positioning the stripper arm, align
the peeler with it.
OIL
If the jaws have been disassembled,
insert peeler between the two jaws,
taking care that the letters TOP on the
peeler are facing upwards.
To assemble the pawls
Correctly position the spring in its
housing as shown at left. Hold the
spring closed and slide the pawl into its
housing. Once in position, check that the
pawls can be easily opened and closed
with a nger.
NOTICE
Before screw the central screw, check
the correct position of the o-ring in the
assy socket and apply Harken® grease.
In case of doubt concerning the assembly procedure contact Harken® Tech Service: techservice@
harken.it
Radial Winch
35.2 ST E/HY
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Installation and Maintenance Manual
Page 20
Harken® limited worldwide warranty - Ordering spare parts
Harken® limited worldwide warranty
Refer to the Harken® Limited Worldwide Warranty in the Harken® Catalogue and on the website
www.harken.com
Ordering spare parts
Spare parts can be requested from Harken® as
described in the Harken® Limited Worldwide
Warranty, indicating the part number in the
Parts List and including the serial number of the
winch for which the parts are required.
The serial number of the winch is printed on
a plate on the drum support of the winch.
W XXXXX
XXXXXXXXX
Manufacturer
Harken® Italy S.p.A.
Via Marco Biagi, 14
22070 Limido Comasco (CO) Italy
Tel: (+39) 031.3523511
Fax: (+39) 031.3520031
Email: info@harken.it
Web: www.harken.com
Headquarters
Harken®, Inc.
1251 East Wisconsin Avenue
Pewaukee, Wisconsin 53072-3755 USA
Tel: (262) 691.3320
Fax: (262) 691.3008
Email: harken@harken.com
Web: www.harken.com
KIT Assy Electric Motor Flange
KIT Assy Electric Motor Flange Left
Electric Motor Flange
Screw M6x14 UNI 5931
KIT EL HO Motor Flange
Horizontal Motorgear Flange
Screw M6x16 UNI EN ISO 5931:2003
precote coating
O-Ring Seal (Ø5,5 x Ø1)
Lip seal Ø17xØ30x7
Sealer Ø30xØ47x7
KIT EL HO Motor Clutch
Shaft Motorgear HO
Shaft GearMotor HO
Hub GearMotor
Dowel UNI EN ISO 8752- Ø4x24
O-ring 19.1x1.6
Disconnect spring
Flange GearMotor Shaft HO
Key 8x5x40 UNI 7511
KIT EL Motor 12V 0,7kW
KIT EL Motor 24V 0,9kW
Electric Motor
Polarity motor sticker
Screw stud M6x26
Washer Ø6
Nut M6 UNI5588
Key DIN 6885 5x5x15
4
2
3
1
G
5
T
Polarity motor sticker
Identification motor sticker
A
Anti-seize
A
Harken® Grease
G
Axial Threadlocker
T
Radial Winch
35.2 ST E/HY
30
Installation and Maintenance Manual
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