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Mast tang assembly installing mast tangs, Installing mast tang and wire assembly – Harken 252 Lazy Jack kit User Manual

Page 3

background image

Top View

Tangs installed

on widest part

of mast

Mast Tang

Assembly

Installing Mast Tangs

Measurement

from

Chart A

Installing Mast Tang and Wire Assembly

If you are installing the system with the mast up, you will need to take up the follow-

ing parts in the bosun's chair or send them up with a messenger line. (Follow all

precautions to insure the safety of the person aloft. Make sure no one is standing

where they could be hit with dropped tools.)

WARNING! When drilling through mast, do not let drill bit contact the halyard that

is holding you aloft! This may cause the halyard to fail. Limit depth.
Tape measure

Screw Method

Port and starboard templates (attached to pg. 3) Drill with

5

/

32

" (4 mm) drill bit

Tape for template

#10-32 Tap and handle

Tang assembly including wires 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 boom to the height from chart A (page 2).
Moveable Gooseneck - If the gooseneck is capable of moving up and down, measure

from the top of the boom when the boom is positioned in its normal sailing position.
Mark the mast at this point.
Tape the template to the side of the mast so the middle hole is even with your mark.

Line the template up so the vertical line is parallel to the side of the mast. See

drawing below.
Use a center punch to mark three tang holes. Remove template and drill three holes:

Screws

5

/

32

" (4 mm) & Tap #10-32

Rivets

13

/

64

" (5 mm).

Attach tang starting from center hole.

3