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9

Radial Winch 

20 ST

Installation and Maintenance Manual

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.

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, chrome 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.
In the case of doubt contact Harken

®

 Tech Service at [email protected]

Disassembly procedure

Tools needed

One medium flat-bladed screwdriver
A number five hex key
Rags

To identify the various parts refer to the exploded view at the end of this Manual.

 Torque to be applied in assembly phase

Maintenance

Summary of Contents for 20 STA

Page 1: ...Radial Winch 20 ST Installation and Maintenance Manual MRW 03 ...

Page 2: ...Installation procedure 8 Positioning the self tailing arm 9 Maintenance 9 Washing 9 Maintenance table 9 Disassembly procedure 9 Exploded view with maintenance products 12 Assembly 13 Harken limited worldwide warranty 14 Ordering spare parts 14 Exploded view 15 Parts List 19 Radial Winch 20 STA 19 Radial Winch 20 STC 20 Radial Winch 20 STCW 21 Radial Winch 20 STBBB 22 Radial Winch 20 STCCC 23 ...

Page 3: ...ervice harken it 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 Power ratio Gear ratio 1st speed 19 20 1 2 76 1 The theoretical power ratio does not take friction into account Weights ST A version ST C CW versions ST BBB CCC versions Weight Kg 2 4 3 4 3 9 Versions A drum...

Page 4: ...n 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 over...

Page 5: ...he drum and use bolts as described ahead Tools needed One medium flat bladed screwdriver To identify the various parts refer to the exploded view at the end of this Manual Torque to apply when assembling 1 Unscrew the central screw 2Nm 18 in lb 2 Slide off the assy socket n 20 and the cover n 19 3 Unscrew the three screws n 18 4Nm 35 in lb 4 Remove the self tailing arm n 17 by rotating and lifting...

Page 6: ...al 2 Take off the skirt n 2 1 Remove the skirt n 2 with the help of the screwdriver placed as shown by the symbol 5 Lift off the drum n 13 Winch STA STC and STCW versions Install the winch on the deck in the position you have chosen keeping in mind the limits described on page 4 and using socket head SH bolts Winch STBBB and STCCC versions Install the winch on the deck in the position you have cho...

Page 7: ...winch Install the winch on the deck in the position you have chosen keeping in mind the limits described on page 4 and using hexagonal headed bolts HH See paragraph on installation 4 Reposition the skirt n 2 in its housing 5 Press down the skirt to position it correctly 3 Position the 5 M6 hexagonal headed bolts in their holes ...

Page 8: ...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 Installation procedure Carry out ...

Page 9: ...e 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 i...

Page 10: ... shown in the paragraph on winch installation and then do the following 6 Completely unscrew the three screws n 18 8 Slide out the central shaft n 7 10 Slide off gear n 3 7 Remove the self tailing arm support n 12 and slide out the bushing 9 Remove the pin n 6 11 Slide off gear n 11 ...

Page 11: ...s 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 Replace worn or damaged components Carry out maintenance on components using the products listed below For more informa...

Page 12: ...tion and Maintenance Manual Exploded view with maintenance products G G A A Harken Grease G Harken Pawl Oil O T Threadlocker Anti seize A G G G T O O 1 2 1 Apply Harken grease on assy socket screw 2 Apply Harken grease on drum gear ...

Page 13: ...positioning the stripper arm align the peeler with it If the jaws have been disassembled insert peeler between the two jaws taking care that the letters TOP on the peeler are facing upwards OIL 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 ...

Page 14: ... 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 Tech Service Email techservice harken it Customer Service Tel 39 031 3523511 Email info harken it Tech Service Email technicalservice harken com Customer Service Tel 262 691 3320 Email customerservice harken com Ordering spare parts Spare parts can be requested from Harke...

Page 15: ...15 Radial Winch 20 ST Installation and Maintenance Manual Exploded view Exploded view 14 13 15 16 12 17 18 19 20 Radial Winch 20 STA STC STCW ...

Page 16: ...16 Radial Winch 20 ST Installation and Maintenance Manual 2 1 4 5 11 4 5 7 3 6 10 9 8 4 5 Radial Winch 20 STA STC STCW ...

Page 17: ...17 Radial Winch 20 ST Installation and Maintenance Manual 13 12 14 15 11 16 17 18 19 20 Radial Winch 20 STBBB STCCC ...

Page 18: ...18 Radial Winch 20 ST Installation and Maintenance Manual 1 3 4 10 3 4 6 2 5 9 8 7 3 4 Radial Winch 20 STBBB STCCC ...

Page 19: ...80 Assy Gear Z18 Gear Z18 Bushing Ø9xØ11x7 4 4 S000080003 Pawl Ø8 5 4 S000380001 Pawl Spring Ø8 6 1 S413700004 Pin 7 1 S413630002 Shaft Winch 20 8 Winch Serial Number Sticker 9 1 S268890080 Washer 10 1 M0604003 Screw M6x12 UNI 5933 11 1 S413620041 Gear Z21 12 1 S4129400A0 Stripper arm support 13 1 S413560053 Drum W20 14 1 S281670097 Red line 15 1 1 3 A94136500 S413610080 S385970001 Assy Jaws Winch...

Page 20: ...ssy Gear Z18 Gear Z18 Bushing Ø9xØ11x7 4 4 S000080003 Pawl Ø8 5 4 S000380001 Pawl Spring Ø8 6 1 S413700004 Pin 7 1 S413630002 Shaft Winch 20 8 Winch Serial Number Sticker 9 1 S268890080 Washer 10 1 M0604003 Screw M6x12 UNI 5933 11 1 S413620041 Gear Z21 12 1 S4129400A0 Stripper arm support 13 1 S413550043 Drum C W20 14 1 S281670097 Red line 15 1 1 3 A94136500 S413610080 S385970001 Assy Jaws Winch 2...

Page 21: ...r Z18 Bushing Ø9xØ11x7 4 4 S000080003 Pawl Ø8 5 4 S000380001 Pawl Spring Ø8 6 1 S413700004 Pin 7 1 S413630002 Shaft Winch 20 8 Winch Serial Number Sticker 9 1 S268890080 Washer 10 1 M0604003 Screw M6x12 UNI 5933 11 1 S413620041 Gear Z21 12 1 S4129400A0 Stripper arm support 13 1 S413550043 Drum C W20 14 1 S281670097 Red line 15 1 1 3 A94136500W S413610080W S385970001 Assy Jaws Winch 20 RAL9003 Lowe...

Page 22: ...3 Pawl Ø8 4 4 S000380001 Pawl Spring Ø8 5 1 S413700004 Pin 6 1 S413630002 Shaft Winch 20 7 Winch Serial Number Sticker 8 1 S268890080 Washer 9 1 M0604003 Screw M6x12 UNI 5933 10 1 S413620041 Gear Z21 11 1 S4129400A0 Stripper arm support 12 1 S416650043 Drum 20 BBB 13 1 S281670097 Red line 14 1 1 3 A96931900 S413610080 S385970001 Assy Jaws Winch 20 BBB Lower Jaw W20 BBB Upper Jaw W20 Peeler W20 40 ...

Page 23: ...wl Ø8 4 4 S000380001 Pawl Spring Ø8 5 1 S413700004 Pin 6 1 S413630002 Shaft Winch 20 7 Winch Serial Number Sticker 8 1 S268890080 Washer 9 1 M0604003 Screw M6x12 UNI 5933 10 1 S413620041 Gear Z21 11 1 S4129400A0 Stripper arm support 12 1 S416690043 Drum CCC W20 13 1 S281670097 Red line 14 1 1 3 A96811700 S413610080W S385970001 Assy Jaws Winch 20 CCC Lower Jaw W20 CCC Upper Jaw W20 RAL9003 Peeler W...

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