Assembly—drill and tap mount general instructions, General instructions, Mount track to carbon mast – Harken HC7906 18 mm Battcar Switch System User Manual
Page 12: Removing old track

12
HC7827
General Instructions
When mounting tracks, work using a straight edge reference line along mast. Do not let tracks vary from this line.
Tape track in place and center punch hole at bottom using a transfer punch.
Tip: Use low-speed drill with tap for cutting threads.
IMPORTANT! Use blue Loctite
®
adhesive instead of oil to lubricate tap.
Drill and tap single hole. Fasten track using
this single screw and align side-to-side
correctly. Use tape to hold in place.
Move up several holes and use transfer
punch to mark a second hole. Remove track.
Drill and tap hole.
Fasten track using two screws. Mark all remaining
holes using punch. Remove track. Drill and tap all
holes. Before installing track make sure upper
end has splice piece inserted.
Use threadlocker or epoxy to secure screw.
Specific instructions follow.
Assembly—Drill and Tap Mount
General Instructions
HC7827
18 mm
(
11
/
16
")
12.7 mm
(
1
/
2
")
4 mm (
5
/
32
")
Mount Track to Carbon Mast
Consult with mast builder. Use suitable reinforcing plates when fastening track to carbon spars.
Part No.
Comments
Track
HC7827
Length: 3000 mm (118
1
/
8
") Determine track length. See page 6.
Do not use HC8800 or HC8811 for drill and tap.
Track Fasteners
—
#10 (5 mm) flathead screws (not included); 13
1
/
3
fasteners/meter of track.
HC8230
Splice links. Order one per section of track.
Switch
HC8218
Length: 605 mm (23
13
/
16
")
HC8219
Switch: 605 mm (23
13
/
16
") and storage track: 252 mm (9
15
/
16
").
Includes two screw-pin endstops and one upper stop
.
Drill and Tap Sizes
mm
in
Drill
4.2 mm
5
/
32
Tap
5 x .80 mm
10-32
Track on mast: Before removing, scribe pencil line down either side of track.
Track off mast: Attach string to mast to line up track during installation.
Removing Old Track
Loctite is a registered trademark of Henkel AG & Company KGaA.