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N15W24983 Bluemound Road • Pewaukee, WI 53072 U.S.A.

Telephone: (262) 691-3320 • Fax: (262) 701-5780

Web: www.harken.com • Email: [email protected]

OPTIONS:

 419 eyestrap; 355 mounting bracket to attach cleat to Harken 

Classic blocks: 052, 064, 152, and 411. See reverse side for mounting to 
Carbo triple blocks.

Placement

The angle of line from cleat to operator is important for efficient  

release. For best operation, mount cleat at waist or chest height  

in your normal operating position. If possible, mount cleat on  

edge of deck, cockpit, or cabin.
Place mounting holes back 35 mm (1

3

/

8

"

) from edge so cleat overhangs.

Drill size 5 mm (

13

/

64

"

) or #12.

If line angle is too low, or if cleat cannot be mounted near an edge, mount 

cleat on pad or bracket inclined 25°. Install bullseye fairlead or turning 

block on the loaded side of the cleat to lead line into cleat parallel to cams.

The Trigger cleat will accept most lines up to 12 mm (

1

/

2

").

To adjust cleat to fit larger size line,  

loosen screws and lift cam cleat and  

its platform slightly from base. Slide  

base toward you, against spring  

tension. Press cleat and platform  

down and hold in place until screws  

are tight.

Tip: Mount screws through cleat and deck with nuts loosely threaded. 

Screws should be ready to tighten before adjusting for larger line.  

Cam base and cam platform have ridges and interlocking grooves  

to help hold them in place until screws are tight.

Adjusting Cleat to Fit Line Size

I N S T R U C T I O N S

Trigger Cleat 418

Strictly follow all instructions to avoid an accident, damage to  

your vessel, personal injury, or death. See www.harken.com  

for additional safety information.

Part  

No.

Min line  

Ø

Max line 

Ø

Maximum  

working load

Fastener  

spacing

Fastener size/ 

comments

in mm in mm

lb

kg

in mm

5 mm (#10) PH/RH–ships w/1

5

/

8

screws and nuts to hold assembly.

418

  

3

/

16

 

5

  

1

/

2

  12

500

227

2

51

The 418 Trigger cleat allows easy  

release of highly-loaded lines with  

complete control. Pulling line down  

on the trigger mechanism opens  

cleat. Line never comes off cleat.  

The trigger serves as a snubbing  

surface to control release.

Installing 418 Trigger Cleat

35 mm 

(1

3

/

8

")

Cam gap

With lever fully depressed, cam gap should be 

slightly larger than line size. If gap is too small, 

shift base to position for larger line size. 
With line loaded in cams, lever should not  

contact top of lever cavity. This will prevent  

cams from closing tightly against line. If rope 

slips when loaded, shift base to position for 

smaller rope size. 

Check for Proper Adjustment

Trigger

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