Harken HC7906 18 mm Battcar Switch System - Manual (Page 7)

7
CORRECT
Slug
INCORRECT
Slug
Turn screw 360° at least 10 times after
threads engage slug.
Warning! Some masts might not
allow enough screw engagement
into slug. Screws need a minimum
of 10 threads (turns) engaged to
hold track to mast.
CORRECT INCORRECT
Slug Slug
10 or
more
Deburr cut.
Slightly round track corners that will
slide against mast.
Cut variable length top track.
Test track: Put mounting slug in groove,
track section on mast. Tighten with screw.
Make sure track will tighten to mast before
slug contacts track underside.
Mounting screw must be long enough for
mast groove. If necessary, purchase longer
screws.
67 mm (2 5 /
8
") splice slug must fit feeder
opening. File opening to make longer.
Use halyard with retrieval line to run
67 mm (2 5 /
8
") splice slug up mast to
check for burrs in groove.
Mast prebend: Might require straightening
before installation.
Check Fit of Mounting Slugs and Car
Drill 5.5 mm ( 7 / 32 ") hole in cut end
of track for endstop.
10 mm ( 3 /
8 ")
Assembly—Slug-Mount Cut Top Track to Length
Will Tighten Will Not Tighten
Cars must clear storm trysail track.
Tracks often converge above spreaders.
Aft face of mast must be flat
or convex.
42 mm (1 21 /
32
")
Clear of Trysail Track?
Check fit