Harken 430 Single Line Reefing - Manual (Page 3)

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A. Decide whether to place the system on the port or
starboard side of the boom.
A. Each boat is different. Choose the best side by deter-
mining if you have room on the boom and where the
line will lead on the cabin house. Remember, the line
runs down the opposite side of the mast as the track is
mounted to the boom. If the track is on starboard, the
line will run down the port side of the cabin top. You
will need 19” (483 mm) on the aft end of the boom to
mount the track.
General Instructions Detailed Instructions
Step 1 Mounting Track on Boom
Installation Tip – Plan the Location of All Hardware
Before Installation
Look at the mast area to see if the tack block and bullseye will
fit easily. Look at the mast base area. Is there a good spot for
mounting the mast base block? Where is the main halyard cleat?
If possible, locate the single line cleat near the halyard cleat in
easy reach of the cockpit.
Installation Tip – Lining Up Holes with Track
If holes in boom do not line up with track holes, it will be very
difficult to install screws. After marking each hole, drill and tap
the forward hole and use a screw to secure the track. Use a cen-
ter punch to start the other holes. If any dimples do not line up,
relocate them before drilling holes. Loosen screw and let track
pivot out of the way and drill the other holes. Do not drill holes
through track; remove track before drilling.
Installation Tip – Drilling
Hold the drill perpendicular to the face of the boom. Do not angle
the drill or it will be very difficult to install the screws flush with
the track.
B. Place the track so the front edge is behind the aft
mainsail reefing grommet. If the boom is not long
enough for this, position the track as far aft as
possible.
Carefully mark the holes, drill, tap and mount track.
See tips below.
US Metric
Drill 17/64” 6.8 mm
Tap 5/16-18 8 x 1.25 mm
5 Screws
5/16 -18 x 3/4”
Flathead Machine Screws
(Use Blue Loctite on Screws)
8 x 1.25 x 20 mm
Flathead Machine Screws
(Use Blue Loctite on Screws)
B. Mount track at the aft end of the boom.