Harken 254 Lazy Jack kit - Manual (Page 2)

2
Parts List
2 6' (1.82 m) wire assemblies including blocks and mast tangs
2 30'6" (9.29 m) upper line assemblies with blocks
1 104' (31.69 m) adjusting line
5 H073 Stainless steel eyestraps
1 H132 Big Bullet cheek block
1 4" (101 mm) aluminum cleat
21
3
/
16
" (4.76 mm) stainless steel rivets (includes 3 extra)
21 10-32 x .375 slotted trusshead machine screws
3 #10 x 1
1
/
4
" (32 mm) flathead self-tapping screws (includes 1 extra)
3 10-32 x 3 /
4
" (19 mm) trusshead machine screws (includes 1 extra)
3 #10 x
3
/
4
" (19 mm) trusshead self-tapping screws (includes 1 extra)
Tools Required
Marker or pencil
5
/
32
" (4 mm) drill bit
Center punch Tape measure (long enough to measure luff length)
Hammer Electric drill
Drill, Tap & Screw Method:
1 – 1 slotted screwdriver
1 – 5 /
32
" (4 mm) drill bit
1 – 10-32 tap set
Rivet Gun Method
Stainless steel rivets require a heavy-duty rivet gun. It may be necessary to rent a
rivet gun if you do not have a heavy-duty model.
Drill Bit – 13 /
64
" (5 mm)
Topping Lift
To avoid snagging the mainsail on the Lazy Jacks when raising sail, the boat
must be equipped with a topping lift or vang that holds boom lifted.
Altering Sail Cover
Take your sail cover to a sailmaker to have slits cut in the cover for the Lazy Jacks.
Slits should have Velcro or snap closures to make it easy to cover the mainsail.
Mark your cover after installation so the slots can be positioned correctly.
Determining the 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.
—
8.33 m
— 27'4" — 12.67 - 12.80 m
— 41'7" to 42'
9.50 m
8.23 m
31' 2" 27' 0" 14.50 - 14.63 m 12.52 - 12.65 m
47'7" to 48' 41'1" to 41'6"
9.40 m
8.13 m
30'10" 26'8" 14.35 - 14.48 m 12.37 - 12.50 m
47'1" to 47'6" 40'7" to 41'
9.32 m
8.03 m
30' 7" 26'4" 14.20 - 14.33 m 12.22 - 12.34 m
46'7" to 47' 40'1" to 40'6"
9.22 m
7.92 m
30' 3" 26' 0" 14.05 - 14.17 m 12.07 - 12.19 m 46'1" to 46'6" 39'7" to 40'
9.12 m
7.82 m
29'11" 25'8" 13.89 - 14.02 m 11.91 - 12.04 m
45'7" to 46' 39'1" to 39'6"
9.02 m
7.72 m
29' 7" 25'4" 13.74 - 13.87 m 11.76 - 11.89 m
45'1" to 45'6" 38'7" to 39'
8.92 m
7.62 m
29' 3" 25' 0" 13.59 - 13.72 m 11.61 - 11.73 m
44'7" to 45' 38'1" to 38'6"
8.81 m
7.52 m
28'11" 24'8" 13.44 - 13.56 m 11.46 - 11.58 m
44'1" to 44'6" 37'7" to 38'
8.71 m
7.42 m
28' 7" 24'4" 13.28 - 13.41 m 11.30 - 11.43 m
43'7" to 44' 37'1" to 37'6"
8.61 m
7.34 m
28' 3" 24'1" 13.13 - 13.26 m 11.15 - 11.28 m 43'1" to 43'6" 36'7" to 37'
8.51 m
7.24 m
27'11" 23'9" 12.98 - 13.11 m 11.00 - 11.13 m
42'7" to 43' 36'1" to 36'6"
The tang location
measured from the
top of the boom is:
8.41 m
The tang location
measured from the
top of the boom is:
7.14 m
27' 7" 23'5"
If the mainsail luff length or
P dimension measures:
12.83 - 12.95 m
Chart A
If the mainsail luff length or
P dimension measures:
10.85 - 10.97 m
42'1' to 42'6" 35'7" to 36'