Harken 447 Dinghy Vang System - Manual (Page 3)

Note: If bracket does not fit mast, put it in a vice and squeeze slightly to fit.
too much
gap
Part 2 – Mounting Instructions
Mounting options
Mount the Dinghy Vang with either stainless steel pop rivets or with screws into a threaded hole.
Pop riveting is easier and quicker, but it is essential to use stainless steel pop rivets. Other types
of pop rivets are not strong enough. When using screws it is important to have properly drilled
holes with correctly tapped threads.
Boom Attachment: Some boats may already have a bail or other attachment point on the boom.
In this case attach the 405 block to the boom with a shackle. If there are no attachment points,
attach the 405 block with an eyestrap or bail.
General Instructions: Locating & Mounting
1. Locating the vang attachment points:
Lower Assembly: The vang is the most efficient when
the lower assembly is mounted as low as possible without
interference from deck or other hardware. Attaching it to
the mastbase is best.
Upper 16mm Block: Mount the upper block about 1/3
of the way back from the mast. The ideal vang angle
is about 30° from the deck.
30°
continued on back
2. Mounting the Lower Assembly:
Position lower stainless steel bracket
and mark the 6 holes on the mast.
Use the center punch to make a dimple
at the marked hole position.
Drill holes accordingly for either #10-32
stainless screws or 3/16" stainless pop rivets.