Harken 340 29 mm Shackle & Cheek Block User Manual
29 mm carbo airblock, Features
I N S T R U C T I O N S
29 mm Carbo AirBlock
®
All blocks except 351 Ti-Lite
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.
Part
No. Description
A
B
C
Maximum
working load
Breaking
load
Harken
Shackle
Part No.
in mm
in
mm
in
mm
lb
kg
lb
kg
340 Single/swivel
1
1
/
8
29
2
5
/
8
66
5
/
32
4
330
150
1000
454
246
341 Single/swivel/becket
1
1
/
8
29 3
1
/
16
78
5
/
32
4
330
150
1000
454
246
342 Double/swivel
1
1
/
8
29
2
7
/
8
73
3
/
16
5
660
299
1625
737
072
343 Double/swivel/becket
1
1
/
8
29
3
3
/
8
85
3
/
16
5
660
299
1625
737
072
344 Triple/swivel
1
1
/
8
29
2
7
/
8
73
3
/
16
5
990
449
2000
907
072
345 Triple/swivel/becket
1
1
/
8
29
3
3
/
8
85
3
/
16
5
990
449
2000
907
072
346 Triple/423 Carbo-Cam
®
**
1
1
/
8
29
2
7
/
8
73
3
/
16
5
750
340
1500
680
072
347 Triple/423 Carbo-Cam
®
/becket**
1
1
/
8
29
3
3
/
8
85
3
/
16
5
900
408
1800
816
072
348 Single/fixed*
1
1
/
8
29 1
15
/
16
49
—
—
330
150
1000
454
—
349 Stand-up/fixed*
1
1
/
8
29 2
3
/
16
56
—
—
330
150
1000
454
—
350 Cheek
1
1
/
8
29
2
1/8
53
—
—
330
150
1000
454
—
351 Ti-Lite*
Important: Consult instruction sheet at: http://www.harken.com/pdf/4927.pdf
352 90° Fixed head*
1
1
/
8
29 2
1
/
16
52
—
—
330
150
1000
454
—
353 Traveler
1
1
/
8
29
3
5
/
8
92
—
—
330
150
1000
454
—
371 Clew block assembly
1
1
/
8
29
4
7
/
8
124
—
—
330
150
1000
454
—
381 Double/fixed
1
1
/
8
29
2
1
/
8
54
—
—
660
299
1625
737
—
*Can be used as becket block **Maximum working loads and breaking loads for blocks based on cam strengths
A
B
C
Glass-filled nylon sideplates: load-carrying curved bearing races.
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.
Cheek: Line-shedding, small mounting footprint and drain holes.
Common uses: Outhauls, Cunninghams, Vangs, Traveler controls,
Barberhaulers, Flag halyards
Max Line Size: Blocks w/o Cams 5/16" (8 mm); Blocks w/Cams 1/4" (6 mm)
Do not apply a load greater than the Maximum working load (MWL) of the Carbo AirBlock listed below.
Features
IMPORTANT: See Inspection and Maintenance at end of manual.
USA – Tel: (+1) 262-691-3320 • Web: www.harken.com • Email: [email protected]
Italy – Tel: (+39) 031.3523511 • Web: www.harken.it • Email: [email protected]