- ページ 8

ボート用品 Dutchman BB500のPDF オーナーズマニュアルをオンラインで閲覧またはダウンロードできます。Dutchman BB500 12 ページ。 Boom brake

ページを印刷する

Pad Eye Installation

When installing pad eye's in Balsa cored fiberglass, you must use the following

procedure.

1. Drill a hole the diameter of the through bolt you intend to use through only the

upper layer of the deck. If you drill all the way through, tape over inside hole.

2. Bend a sturdy nail over, so the short side from the right angle is about 1/4" /

6mm long.

3. Insert long end into a drill. Remove balsa core 1/4" from edge of existing

hole. Now you are ready to rig the Brake.

4. Mix some epoxy with high density filler. Epoxy should be consistency of heavy

cream. Pour into holes.

5. Redrill hole for fastener, and mount using an appropriate bedding compound

such as 3m 101.

Mounting Tips, Boom Attachment

Often it's possible to use an existing boom eye or bail for mounting the brake,

especially with the beckett style brake, where the brake normally attaches to

the vang attachment point. Also, many modern booms have sliding bails un-

der the boom. By removing the fasteners, a spare bail can be slide into posi-

tion and refastened. Otherwise, mount a through bolted, V shaped boom bail

in the appropriate position. Some booms will need reinforcing if light weight.

A rectangular plate riveted to the boom should be added to strengthen the

boom where the bail will be mounted, for boats planning extensive offshore

passages. Contact a qualified rigger. Try to isolate the SS parts from the

boom by using the supplied plastic bushings.

If the brake will be tensioned by a line running back from the mast, a V shaped Bail must be used (and the longer the

V, the better). You will also need another attachment point on the boom to turn the line back to the front of the mast.

Rigging the Brake

Brake Line Adjustable

Once the needed attachment points are

positioned, rigging the brake is simple. At-

tach the Brake to the boom bail. Note that

the brake shackle can be front or side

mounted. Wire the shackle pin to prevent it

from turning. Run the line from the deck at-

tachment point, through the Brake, and back

down to the turning block.

The line should then be run aft to the cock-

pit. Adjust the tension on the line with a 6

to 1 block and tackle or run the line through

a line stopper to a winch. If you use a 4 to

1 block and tackle, you may also need a

winch to get the line tight. You will be ad-

justing the tension on this line to secure the

boom, or allow it to jibe.

Beckett Style Brake mounted

Boom Brake

Turning Block

Page 6

Balsa Core

Fill with epoxy and refill hole

Brake line led aft to winch

or block & tackle