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7

Conventional Sail Slugs

If using conventional sail slugs, make sure slugs are free to move below the gate. 
Use mast gate plates so sail slugs stay in the mast groove. Contact your rigger.

Adjusting Lazy Jacks

The Lazy Jack may be set to proper tension at dock. Raise mainsail and make sure
adjusting line is uncleated at boom. Tighten mainsheet as tight as it will go to find
maximum distance that boom will be lowered while under sail. Next tighten adjusting
line and slack it off 2" (50 mm). The system should be set at a reasonable tension 
so it will not interfere with sail shape, yet will contain the sail when lowered onto 
the boom. Some further adjustment may be necessary.

Using Your Lazy Jacks - Precautions 

Before sailing, make sure Lazy Jacks will not catch on spreaders. While at dock,
swing boom out so sail is against spreader tips. Try lifting boom and shaking to see if
Lazy Jack lines are apt to swing behind spreaders. When first sailing with Lazy Jacks,
look aloft while sailing downwind to see if Lazy Jacks catch behind spreaders. If they
get snagged while sailing, release snagged Lazy Jacks from behind spreader before
bringing mainsail in towards center. If this is not done, you risk breaking spreaders 
as mainsheet is tensioned and mainsail moves toward the centerline.
If Lazy jacks are prone to snagging spreader tips, there are 2 solutions. The easiest is
to rig shock cords to pull Lazy Jacks forward out of way of spreader tips. Rig a length
of shock cord on each side of sail. Dead end shock cord at or near gooseneck and
run it up to blocks which are suspended from wires.
If this does not help, you will need to reposition Mast Tangs so they are lower on
mast and do not interfere with spreader tips.

Raising Sail

When hoisting sail, check to make sure the sail does not get caught in the Lazy Jacks.
The headboard or battens may catch between the mast and the Lazy Jacks or jam in
the angle between the lines. If the halyard is forced, this could result in a broken bat-
ten, ripped sail or damaged Lazy Jack. To avoid this, look aloft as you raise the main-
sail and stop if the sail gets caught. Also, make sure the boat is facing head-to-wind.
The sail is less apt to catch on the Lazy Jacks if the topping lift is used and the Lazy
Jacks are somewhat loose. This way they will deflect out of the way easier when the
sail makes contact with them.

Summary of Contents for 252

Page 1: ...I N S T R U C T I O N M A N U A L 252 Lazy Jack Kit Boats 21 28 ft 6 8 5 m Mainsail luff length 24 32 ft 7 10 m ...

Page 2: ...e it easy to cover the mainsail Mark your cover after installation so the slots can be positioned correctly Determining Location of Mast Tang Measure the mainsail luff length or find the P dimension of the mast Find this measurement in the left column below and circle the number in the right column See drawing page 3 2 6 83 m 22 5 9 62 9 75 m 31 7 to 32 6 73 m 22 1 9 47 9 61 m 31 1 to 31 6 6 60 m ...

Page 3: ... and blocks Slotted screw driver Hammer 10 32 x 3 8 10 mm Trusshead Center punch machine screws Rivet Method Drill with 13 64 5 mm drill bit Rivet gun and rivets Note before going up the mast insert the middle screw or rivet into the tang Squeeze the top and bottom of the tang together to insert the screw or rivet It may be necessary to use a pliers or vice grips Measure up from the top of the boo...

Page 4: ...584 mm 2 61 2 75 m 8 7 to 9 5 3 1 600 m 1 10 559 mm 2 46 2 60 m 8 1 to 8 6 4 11 1 499 m 1 9 533 mm 2 31 2 45 m 7 7 to 8 4 7 1 397 m 1 7 483 mm 2 15 2 30 m 7 1 to 7 6 4 3 1 295 m 1 6 457 mm 2 00 2 14 m 6 7 to 7 4 1 219 m 1 5 432 mm 1 85 1 99 m 6 1 to 6 6 3 8 1 118 m 1 3 381 mm 1 70 1 84 m 5 7 to 6 3 4 1 016 m 1 2 356 mm 1 54 1 69 m 5 1 to 5 6 3 914 mm 1 1 330 mm 1 39 1 52 m 4 7 to 5 2 8 813 mm 11 2...

Page 5: ...ard end of boom so Lazy Jacks may be easily adjusted Before mounting cleat swing boom out as far forward as it will go to make sure cleat does not hit mast If you have a single line reefing or other obstruction forward of block mount cleat aft of block as pictured on page 6 Use cleat as a template to mark holes and use center punch Do not drill holes for rivets Drill size for screws 9 64 3 5 mm Us...

Page 6: ... boom all the way out If necessary lengthen shock cord before permanently attaching to Lazy Jacks Mounting Cradle Straps Make sure you ve checked sail containment before mounting eyestraps Pull aft line towards end of boom until line intersects with mark you have made as indicated in chart B The eyestrap will be located aft of mark See below DRILL HOLES Screws 5 32 4 mm and Tap 10 32 Rivets 13 64 ...

Page 7: ...ease snagged Lazy Jacks from behind spreader before bringing mainsail in towards center If this is not done you risk breaking spreaders as mainsheet is tensioned and mainsail moves toward the centerline If Lazy jacks are prone to snagging spreader tips there are 2 solutions The easiest is to rig shock cords to pull Lazy Jacks forward out of way of spreader tips Rig a length of shock cord on each s...

Page 8: ...ken harken com Harken Italy S P A Via Della Cerca 12 14 22070 Lurago Marinone Como Italy Tel 39 031 3523511 Fax 39 031 3520031 E mail italy harken it Harken France ZA Port des Minimes 11 Place du Petit Hunier 17000 La Rochelle France Tel 33 05 46 44 51 20 Fax 33 05 46 44 25 70 E mail harken harken fr 4058 6 01 ...

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