Harken 2636 User Manual

INSTRUCTIONS

40 mm Carbo AirBlock

All blocks except 2651 Ti-Lite and 2608, 2609, 2610, 2611, and 2614 Ratchets

USA – Tel: [phone] • Web: www.harken.com • Email: [e-mail]

Italy – Tel: [phone] • Web: www.harken.it • Email: [e-mail]

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.

IMPORTANT: See Inspection and Maintenance at end of manual.

Glass-filled nylon sideplates: load-carrying curved bearing races.

C

Single fixed: Integral becket allows 2:1 or 3:1 purchase.
Doubles/triples: U-Locks holds the swivel in front/side position, or lets

block spin freely.

Triple w/cam: Compact cam arm supports high-load purchases of 5:1 or 6:1.
Cam arm locking plates: Allows cam arms to be locked in more than five

positions for fair leads.

B

Cheek: Line-shedding, small mounting footprint and drain holes.

Common uses: Main/jib sheets, mainsheet fine-tune, outhauls, cunning-

hams, vangs, control lines

Max Line Size: Blocks w/o cams 3/8" (10 mm); blocks w/cams 1/4" (6 mm)

®

Features

A

Do not apply a load greater than the Maximum working load (MWL) of the Carbo AirBlock listed below.

Part

No.

Description in mm in mm in mm lb kg lb kg
2636 Single/swivel 1
2637 Single/swivel/becket 1
2644 Cheek 1
2645 Single/swivel/423 Carbo-Cam
2646 Single/swivel/423 Carbo-Cam

®

** 19/1640 33/8865/324 150 68 300 136

®

/becket** 19/1640 4 1025/324 300 136 600 272

2649 Traveler 1
2650 Single/fixed* 1
2651 Ti-Lite* Important: Consult instruction sheet at: http://www.harken.com/pdf/4927.pdf
2652 Stand-up/fixed* 1
2659 90° Fixed head* 1
2638 Double/swivel 1
2639 Double/swivel/becket 1
2640 Triple/swivel 1
2641 Triple/swivel/becket 1
2642 Double/fixed 1
2643 Double/fixed/becket 1
2647 Triple/swivel/423 Carbo-Cam
2648 Triple/swivel/423 Carbo-Cam

®

** 19/1640 311/16943/165 750 340 1500 680

®

/becket** 19/1640 45/161103/165 900 408 1800 816

2654 Quad/swivel 1
2655 Fiddle 1
2656 Fiddle/becket 1
2657 Fiddle/423 Carbo-Cam
2658 Fiddle/423 Carbo-Cam

®

®

/becket 19/1640 51/81315/324 485 220 1620 735

A

9

/1640 33/8865/324 485 220 1620 735

9

/1640 4 1025/324 485 220 1620 735

9

/1640 23/470 — — 485 220 1620 735

9

/1640 41/4108 — — 330 150 1000 454

9

/1640 21/264 — — 485 220 1620 735

9

/1640 23/470 — — 485 220 1620 735

9

/1640 215/1675 — — 485 220 1620 735

9

/1640 311/16943/165 970 440 2380 1080

9

/1640 45/161103/165 970 440 2380 1080

9

/1640 311/16943/165 1455 660 3050 1383

9

/1640 45/161103/165 1455 660 3050 1383

9

/1640 31/2893/165 970 440 2380 1080

9

/1640 43/161063/165 970 440 2380 1080

9

/1640 311/16943/165 1455 660 3050 1383

9

/1640 41/21155/324 485 220 1620 735

9

/1640 51/81315/324 485 220 1620 735

19/1640 41/21155/324 485 220 1620 735

B C

*Can be used as becket block **Maximum working loads and breaking loads for blocks based on cam strengths

Maximum

working load

Breaking

load

2644 Cheek Block

Using block as template, mark holes using a centerpunch. Remove block and
drill holes using a
knife to allow sealant to mass. Through-bolt block using recommended
stainless steel fasteners, washers and locknuts.

Part

No. Fasteners

2644

2644 M5 or #10 PH/RH* — — 1

B

*Fastener length: Add deck thickness and overhang for nut and washer.

13

/64" (5.2 mm) drill. Bevel top of deck holes using a small

A B C

in mm in mm in mm

1

/238 — —

2652 Stand-Up

5:1 Right-Angle Reeving
Dead-end on Becket

4:1 Right-Angle Reeving
Dead-end on Becket

6:1 Right-Angle Reeving
Dead-end on becket

Part

No. Fasteners

2652 M5 or #10 PH/RH*

*Fastener length: Add deck thickness and overhang for nut and washer.

Using eyestrap as template, mark holes using a centerpunch. Remove block and drill
holes using a

11

/64" (4.2 mm) drill. Bevel top of holes using a small knife to allow
sealant to mass. Through-bolt using recommended stainless steel fasteners,
washers and locknuts.

A B C

in mm in mm in mm

7

/1611 11/432 111/1643

A

B
C

3-Way U-Lock—2638 / 2639 / 2640 / 2641 / 2647 / 2648 / 2654

The 3-Way U-Lock allows a change of headpost direction from front
to side or allows the block to swivel. To change headpost direction,
remove shackle, turn post, install shackle. Remove U-Lock to allow
block to swivel.

Integral Becket—2650 / 2652 / 2659

Deadend line at mouth to construct a 2:1 or 3:1 system.

2652

Adjust Cam Angle (Single/Triple) Reverse Cam Cleat (Single Only)

1. Loosen cam arm locking plate screw and
pull outward to disengage.

2. Rotate cam arm to desired position.

3. Press locking plate in and tighten screw.
Avoid binding

sheave, do
not over­ tighten
screw.

1

2

1. Remove screws from cam.

2. Assemble as shown. Note: use
plastic plate on cam bottom.

3. Tighten screws. Do not

overtighten screws. Cam
pawls should snap shut smartly.

Reeving Multi-Purchase Systems

Right-angle reeving dead-end on becket

Part No.
HFS889

2

4

3

1

4

5

4

5

1

2

For larger, printable diagrams, please see: www.harken.com.

6

1

3

6:15:14:1

6

2

5

4

3