Harken 351 User Manual

INSTRUCTIONS

Ti-Lite Carbo AirBlock

351 (29mm), 2651 (40mm), 2607 (57mm)

1251 E. Wisconsin Avenue • Pewaukee, WI 53072 USA

Tel: [phone], Fax: [phone]

Web: www.harken.com, Email: [e-mail]

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

Chart A—Block Specifications

Part

No.

351*
26 51*
2607*

*Includes 4' (1.2m) line

Chart B—Line Replacement

Part

No.

351
2651
2607

Maximum Working Load (MWL) Breaking Load (BL)

Size

(mm)

29 330 150 1000 454

40 485 220 1200 544

57 792 360 2380 1080

lb kg lb kg

Reorder
Part No.

HCP1438 1/ 16 2 Maxibraid

HCP1419 3/32 2.5 Maxibraid

HCP392 1/8 3 Maxibraid

Tie Only to Objects with Rounded Edges

Line Ø

in mm

®

Line Type

Use Three (3) Loops of Supplied Line

WARNING!: Use three loops of the line supplied.
Using fewer loops will weaken the block causing
it to break suddenly causing an accident, damage
to your vessel, personal injury or death. See
www.harken.com for additional safety information.

CORRECT INCORRECT

3 LOOPS

HEAD

MOUTH

A Tie to Bail/Eyestrap—Parallel

A1 Pass line through

mouth, through head,
around bail, through
head and through
mouth in opposite
direction.

A2 Repeat A1 two times.

See: E Finish—
Dead-End Line.

A1

A2

WARNING!: Attach only to objects with rounded edges.
Do not tie block to stamped eyestrap. This will cause
line to chafe and break suddenly causing an accident,
damage to your vessel, personal injury or death. See
www.harken.com for additional safety information.

CORRECT

Rounded Sharp

INCORRECT

Tie to Mouth of Block

WARNING!: Tie only to the mouth of the block as
shown. Do not tie to head of block. This will cause
the block to break suddenly causing an accident,
damage to your vessel, personal injury or death. See
www.harken.com for additional safety information.

Inspect Line Every Time You Sail

WARNING!: Failure to inspect and replace UV­damaged, worn or frayed line can cause the line
to break suddenly causing an accident, damage
to your vessel, personal injury or death. See
www.harken.com for additional safety information.

Inspect line for chafe or UV-damage every time you sail. Replace
damaged line immediately. Replace line with no visible damage after
no more than two-years use. Consult Chart B (left) for replacement
line or use block breaking strength, Chart A (left) to select the
correct line.

B Tie to Bail/Eyestrap—Perpendicular

B1 Pass line through

mouth, through head,
around bail so line
crosses. Go through
head and through
mouth in opposite
direction.

B2 Repeat B1 two
times, crossing line
each time.

See: C Tie to Boom.

for complete
instructions.

See: E Finish—
Dead-End Line.

B1

B2

C Tie to Boom—Large Diameter Object

C1 Pass line through

mouth, through head
and around boom so
line crosses as shown.

C2 Repeat C1.

Cross lines.

C3 Repeat C1.

Cross lines.

See: E Finish—
Dead-End Line.

C4 If you have access

to end of boom, make
three loops as shown.
Cross each loop
separately as shown.

C5 Slide crossed lines
onto end of boom.

See: E Finish—
Dead-End Line.

C1

C2

C3

C4

C5

C6 IMPORTANT!

INCORRECT

You must use crossed
lines when tying to
a large diameter so
head of block is
not damaged.

C7 Once tied, block can be rotated to either
a parallel or perpendicular position (C8).

C7 C8

D Add Becket

D1 Pass line through

mouth to make two
becket loops.

D2 Follow instructions
A, B, C or D to attach
to bail, post or boom.

See: E Finish—
Dead-End Line.

MOUTH

C6

D1

D2

E Finish—Dead-End Line

E1 Cinch block to

E1

desired tension.

INCORRECT

CORRECT

E2 Start with line
coming out of mouth,

pass it through small
dead-end hole. On
2607 (57mm) pass
line from mouth
through outer hole
at side of rivet then
through inner hole.

MOUTH

E3 Tie a loose figure

E3

eight knot. Move knot
so it is tight against
block. Leave at least
25mm (1") of line
beyond knot. Repeat
for other line end.
Trim excess line.

Maintenance

Harken® equipment is designed for minimal maintenance, but some
maintenance is required for optimum and safest possible operation
and to comply with the Harken limited warranty.

In general, the most important aspect of maintenance is to keep your
equipment clean by frequently flushing with fresh water.

Warranty

For additional safety, maintenance and warranty information see
www.harken.com or the Harken® catalog.

Printed in USA 4927/03-10

E2