Harken 70.2 ST EL Handbuch

Installation and Maintenance Manual

MRW-I

Powered Radial Winch

70.2 ST EL/HY

Radial Winch 70.2 ST EL/HY

Installation and Maintenance Manual - Mod.I

Index

Introduction 3

Technical characteristics 3

Performance data 3

Weight 4

Maximum working load 4

Outline 5

Installation 6

Installation Procedure 7

Winch installation procedure 9

Positioning the self-tailing arm 10

Motor installation procedure 10

Electric wiring diagrams 11

Hydraulic connections diagram 13

Maintenance 14

Washing 14

Maintenance table 14

Disassembly procedure 14

Exploded view with maintenance products 18

Assembly 19

Harken®limited worldwide warranty 20

Ordering spare parts 20

Exploded view 21

Radial Winch 70.2 STA, STC, STCW EL/HY 21

Parts List 23

Radial Winch 70.2 STA EL/HY 23

Radial Winch 70.2 STC EL/HY 24

Radial Winch 70.2 STCW EL/HY 25

Exploded view 26

Radial Winch 70.2 STBBB, STCCC EL/HY 26

Parts List 28

Radial Winch 70.2 STBBB EL/HY 28

Radial Winch 70.2 STCCC EL/HY 29

Exploded view and parts list 30

Horizontal electric motor 12V / 24V 30

Vertical electric motor 12V / 24V 31

Hydraulic motor 32

Radial Winch 70.2 ST EL/HY

Installation and Maintenance Manual - Mod.I

Introduction

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®Tech Service is at your disposal at techservice@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.

NOTICE

To use and understand this manual, user must refer to other documents, available on web site

www.harken.com and listed below:

- The Dual Funtion Control Box user manual, for the use of the Dual Function Control Box.

- The Dual Funtion Control Box installation manual, for all details, informations, wiring schemes

and warnings about its installation

Technical characteristics

Power ratio Gear ratio

1st speed 22,20 : 1 5,70 : 1

2nd speed 72,00 : 1 18,50 : 1

The theoretical power ratio does not take friction into account.

Performance data

Winch 70.2 ST EL (electric)

horizontal motor vertical motor

12 V (1500 W) 24 V (2000 W) 12 V (1500 W) 24 V (2000 W)

1st

speed

2nd

speed

1st

speed

2nd

speed

1st

speed

2nd

speed

1st

speed

2nd

speed

line speed (m/min)** 16,1 5,0 19,4 6,0 18,5 5,7 22,2 6,9

max load (Kg) 870 2700 870 2700 870 2700 870 2700

**Line speed is measured with no load

motor nominal power (W) current absorption at winch

MWL (A)

12 V 24 V 12 V 24 V

winch 70.2 ST EL horizontal 1500 2000 280 150

vertical 1500 2000 250 140

Introduction - Technical characteristics - Outline

Radial Winch 70.2 ST EL/HY

Installation and Maintenance Manual - Mod.I

Winch 70.2 ST HY (hydraulic)

1st speed 2nd speed

line speed (m/min)* 27,6 8,5

max load (Kg)*** 870 2700

* at 30 l/min oil ow (5,28 Gal/min)

*** at 110 bar at 30 l/min

NOTE

The ratio of the line load - pressure is evaluated at nominal ow rate.

The performance is evaluated measuring the pressure and ow on the motor ports.

The performance data are based on oil with a viscosity of 35mm2/s [165 SUS] and

temperature of 50°C [120°F].

Weight

ST A EH ST C/CW EH ST A EV ST C/CW EV ST A H ST C/CW H

weight (Kg) 22,1 25,9 22,8 26,6 18,8 22,6

ST BBB EH ST CCC EH ST BBB EV ST CCC EV ST BBB H ST CCC H

weight (Kg) 27,5 27,5 28,2 28,2 24,2 24,2

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

EV = vertical electric winch

H = vertical hydraulic winch

Maximum working load

WARNING!

The maximum working load (MWL) for the 70.2 ST Radial Winch is 2700 Kg (5952 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.

Radial Winch 70.2 ST EL/HY

Installation and Maintenance Manual - Mod.I

Outline

Vertical electric motor (12 V / 24 V)

Hydraulic motor

Winch 70.2 ST E/LHY Horizontal electric motor (12 V / 24 V)

257

Ø131

115

Ø240

257

Ø131

115

Ø240

257

Ø131

115

Ø240

257

Ø131

115

Ø240

257

Ø131

115

Ø240

181

394

140

130

234

Line entry height

257

Ø131

115

Ø240

257

Ø131

115

Ø240

257

Ø131

115

Ø240

257

Ø131

115

Ø240

257

Ø131

115

Ø240

181

394

140

130

234

Line entry height

257

Ø131

115

Ø240

257

Ø131

115

Ø240

257

Ø131

115

Ø240

257

Ø131

115

Ø240

257

Ø131

115

Ø240

181

394

140

130

234

Line entry height

257

Ø131

115

Ø240

257

Ø131

115

Ø240

257

Ø131

115

Ø240

257

Ø131

115

Ø240

257

Ø131

115

Ø240

181

394

140

130

234

Radial Winch 70.2 ST EL/HY

Installation and Maintenance Manual - Mod.I

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.

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.

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.

drive gear

SHEET

8°

Installation

Radial Winch 70.2 ST EL/HY

Installation and Maintenance Manual - Mod.I

Installation Procedure

To install the winch, 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°31 2. Unscrew the central screw ( 2Nm/18 in-lb)

3. Slide off the assy socket n°30 and the cover

n°29.

Pay attention to the o-ring in the socket.

4. Unscrew the three screws n°28

( 4Nm/35 in-lb)

5. Remove the self-tailing arm n°27 by rotating

and lifting it.

6. Lift off the drum n°24

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.

Radial Winch 70.2 ST EL/HY

Installation and Maintenance Manual - Mod.I

Follow steps below only to install the winch using hexagonal headed bolts

7. Completely unscrew the three screws n° 28

9. Slide out the central shaft n°19

11. Remove the drum support n°16

Important: washer n°7 may remain inside the

drum support!

8. Remove the stripper arm housing n°21

10.Unscrew the 6 hex screws n°17

( 20Nm/177 in-lb)

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 (HH) M8

bolts.

Radial Winch 70.2 ST EL/HY

Installation and Maintenance Manual - Mod.I

Winch installation procedure

Carry out Installation procedure 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.

Ø205

28°

41°

53,5°

60°

64°

60°

53,5°

Winch outside Ø240

final pinion

position

Ø8.5

n°6

Ø80 cut out for

powered winches

The drilling cut out template is available on the Harken®website, www.harken.com

B. Remove the winch and drill the six 8.5 mm and a 80 mm diameter holes.

C. Bolt the base of the winch to the deck using six M8 bolts (not supplied by Harken®) 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 Installation procedure (page 7) in the reverse

order, and apply the products indicated in the section on maintenance.

Radial Winch 70.2 ST EL/HY

Installation and Maintenance Manual - Mod.I

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

( 8 Nm/ 71 in-lb)

3. Position the reduction gear and motor 4.Tighten the two screws ( 8 Nm/ 71in-lb).

Be sure to align the ange.

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