background image

Sideplate beta

Deadend 

post

Roller cage 

assembly

Sheave with side balls

Sideplate alpha

Isolator

Screw

Heli-Coil

®  

threaded insert

INSTRUCTIONS

Loop Block 

3214, 3230, 3245, 3255, 3386

N15W24983 Bluemound Road, Pewaukee, WI  53072-4974 

Telephone: (262) 691-3320 • Fax: (262) 701-5780 • Web: www.harken.com • Email: [email protected]

Parts

You Must Supply

Part 

No.

Sheave 

Ø

Max working load 

(MWL)

Breaking load 

(BL)

Max line Ø  

that fits  

through mouth

lb

kg

lb

kg

3214, 3386

57 mm

2500

1134

5000

2268

5 mm

3230

75 mm

5000

2268

10000

4536

8 mm

3245

100 mm

7500

3402

15000

6804

11 mm

3255

125 mm

11000

4990

22000

9977

14 mm

1) Head 

2) Sideplates 

3) Sheave 

4) Deadend post 

5) Mouth 

6) Hex key 

7) Blue Loctite

® 

adhesive

 

8) Head securing line

6

Loop and/or high-strength lashing line

When choosing a Harken Loup

®

 soft-attach, be sure the Loup maximum 

working load in basket configuration exceeds the maximum working load  

of the block.
When choosing a lashing line, use a breaking load that is double the block's 

breaking load to account for strength loss from:
1. Knots slipping or breaking at a much lower load than line breaking load.  

 Spectra

®

 or Dyneema

®

-type lines require specialized knots.

2. Splices slipping or failing due to incorrect type or execution.
3. UV damage increasing with each passing year.
4. Chafing seriously reducing strength.
Go to www.harken.com/knots for additional information. If you are not  

comfortable choosing line, work with a qualified rigger.

Note: See chart for maximum line diameter that will fit through mouth

.

Specifications

WARNING! Knots weaken line considerably. Consult qualified rigger 

or line manufacturer for advice on securing line. Use high-strength 

loops or consult rigger for recommendations on lashing. Using the 

wrong line, or securing the line improperly, can cause an accident.

WARNING! Strictly follow all instructions to avoid an accident, damage to your vessel, 
personal injury, or death. See www.harken.com/manuals for additional safety information.

= Incorrect. Avoid to prevent accidents.

Block

Sheave Ø

Screw

Isolator Sideplate beta

Roller cage assembly  Sheave w/side balls Deadend post Heli-Coil  Sideplate alpha Head securing line 

3214

57 mm

HFS796 MP-3020

AL-3701

HBB85

H-34389A

AL-3238

MS-210

AL-3700

HCP1438 

3230

75 mm

HFS806 MP-3021

AL-3727

HBB86

H-34390A

AL-3336

MS-221

AL-3726

HCP1419

3245

100 mm HFS1271 MP-3022

AL-3752

HBB87

H-34391A

AL-3427

MS-251

AL-3751

HCP1419

3255

125 mm HFS1275 MP-3023

AL-3770

HBB88

H-34392B

AL-3515

MS-259

AL-3769

HCP392

8

7

1

2

3

4

5

Loctite is a registered trademark of Henkel AG & Company KGaA.  

LOUP is a registered trademark of Yale Cordage. 

Spectra is a registered trademark of Honeywell International, Inc. 

Dyneema is a registered trademark of DSM Dyneema. 

Heli-Coil is a registered trademark of Emhart Teknologies Inc.,Worldwide

Reviews: