Harken 3176 User manual

Specifications
Car Description Car width Car length Maximum working load Breaking load
in mm in mm lb kg lb kg
3176 Big Boat CB
3 5/8 136 5 3/8 136 3000 1361 7000 3175
3177 Big Boat CB/stand-up
3 5/8 136 5 3/8 136 3000 1361 7000 3175
3178 Big Boat CB/high-load
3 5/8 136 7 7/16 188 4500 2041 9000 4081
3179 Big Boat CB/high-load
3 5/8 136 7 7/16 188 4500 2041 9000 4081
INSTRUCTIONS
Big Boat Windward Sheeting Cars
3176, 3177, 3178, 3179 cars
3180 adapter kit - fits 3163, 3164, 3165, 3166 Big Boat CB cars. Not designed for T32 cars.
WARNING! Strictly follow all instructions to avoid an accident, damage to your vessel,
personal injury, or death. See www.harken.com/manuals for additional safety information.
USA –Tel: [phone] • Web: www.harken.com • Email: [email protected]
Italy –Tel: [phone] • Web: www.harken.it • Email: [email protected]
Terms
Windward sheeting – Mainsheet force on slider assembly
opens leeward cleat for one (1) step trimming car to windward.
CB – Captive bearings. Wire retaining clips hold bearings
captive for easy loading onto track and for maintenance.
CB+cars – CB cars that can convert to old-style, non-CB track.
Corner keepers – Used on CB+ cars to help retain balls when
cars are off track. Introduced beginning of 2015.
Retaining clips – Formed wires for holding bearings.
CB-style track – Track designed with deeper grooves
to accept CB car retaining clips.
CB+car underside
Corner keeper
Retaining clip
+ stamp at one end
Track Compatibility
Groove for
retaining clips
CB cars are shipped for use on CB track with grooves
at waist to accept retaining clips first supplied by Harken
in 2004. See end of manual if you have older track.
CB track
Part No. A B C
in mm in mm in mm
3154, 3155, 3159, R32 1
1
/ 4 32
3
/ 4 19 1
5
/ 8 42
3156, R32HB 1
1
/ 4 32 2
1
/ 4 57 1
3
/ 16 30 3154, 3155
3159, R32 B
C
A
A
B
3156
R32HB
IMPORTANT! See inspection and maintenance at end of manual.

Installing Windward Car Assembly on Track
Angled sheaves
forward
Track
1. Position car assembly at end of track so angled sheaves face forward.
2. Gently roll car on track. Car should roll on easily. If not, check to make sure you are using CB
track. Do not remove ball retaining wires. Cars will not roll unless they have retaining clips.
Exception: CB+cars can convert to non-CB cars. See Converting Cars to Run on Non-CB Track.
Important: Do not install a stand-up spring between mainsheet block and windward car assem-
bly. Use 1896 stand-up toggle if required.
4:1 Control Lines - Use 3168 Big Boat End Controls
5:1 Control Lines - Use 3169 Big Boat End Controls
1. Deadend line to vertical sheave by
splicing, tying a bowline or overhand
knot as a stop under sheave.
2. Reeve other end of line through
lower end-control sheave, around
angled car sheave in an upward
direction, around the upper end
control sheave, around the upper car
sheave, and out through the cam
cleat.
3. Tie a stop knot in end of control line,
placed to prevent damage to car in
an uncontrolled jibe.
HARKEN USA
PATENTED
Deadend
HARKEN USA
PATENTED
1. Attach eye splice or tie a bowline knot
to inside bar of 3168 end control.
2. Remove vertical sheave and becket.
3. Reeve line downward through
angled sheave, around end control
sheave around top sheave
on windward mechanism, and out
through cleat.
4. Tie stop knot in line end to prevent
damage to car in an uncontrolled
jibe.
Windward car with
vertical sheaves
removed

Loctite is a registered trademark of Henkel AG & Company KGaA.
6:1 Control Lines - Use 3169 Big Boat End Controls
1. Deadend one end of line to inside bar
on 3169 end control.
2. Pass other end of line to car,
upward between vertical sheave
and post.
3. Continue reeving line through lower
sheave at end control, around angled
car sheave, upward around upper
sheave on end control, around upper
car sheave, and out through cam
cleat.
4. Tie a stop knot in end of control line,
placed to prevent damage to car in an
uncontrolled jibe.
HARKEN USA
PATENTED
3180 Windward Sheeting Adapter Kit for
3161, 3163, 3164, 3165, Big Boat CB (Captive Ball) Cars
Kit parts
Part No. Quantity Description
610ASSY 1 Windward sheeting assembly
HFS1021 4 M6 X 1 X 12 screw
833 1 Blue Loctite®adhesive
610ASSY
HFS1021
833
Mounting 3180 Big Boat Adapter Kit
1. Remove screws holding swivel ears
or control blocks on top of car. Save
screws.
2. Place adapter kit on car so angled
sheaves face forward.
3. Put a few drops of blue Loctite on four
(4) screws and install in
corresponding holes in adapter kit.
Tighten screws firmly.
4. Reeve line as instructed.
HARKEN USA
PATENTED
Install four (4) HFS1021
screws and tighten firmly

Installing Bumper Extensions on 3169 End Controls
Use bumper extensions included with
controls on 3176 and 3177 car bodies
to keep windward assembly from hit-
ting end control blocks. Longer 77/16"
cars (188 mm) do not need them.
1. Use pliers to remove old bumpers
from 3169 end controls.
2. Push in new bumper extensions.
H-38147A
bumpers
The windward sheeting traveler car is much easier to use than to describe.
How to Use Your Harken Windward Sheeting Car
WIND
Windward cleat is engaged. Car can
be pulled above centerline without
releasing leeward control line
WIND
Boom pulls block
to leeward
Leeward cleat
stays open
WIND
Boom pulls block
to leeward
Leeward cleat
stays open
1. Position car by pulling the
windward traveler control
line.
2. Don't release line from
leeward cleat to pull car to
windward.
3. Tack and car will stay. Now
pull car to windward on
new tack without releasing
leeward control line.
4. If car is pulled to windward
and then dropped to
centerline before a tack,
there will be slack in
leeward control line.
The car will drop below
centerline on
new tack.
Tie windward sheeting car to one side while motoring or when moored. Otherwise car can work loose
and become damaged when it hits track ends.
For conditions where there is little wind and large waves, you can install override cleats on deck at
outboard ends of track to stabilize car. Use Harken Cam-Matic® cam cleats.
Don't Let the Windward Sheeting Car Slat in Light Air/Large Waves
Mooring/Motoring

Installing Traveler Car on Track
Position car at end of track and gently roll on. Car should roll on easily. If not, check to make sure
you are using CB track. Do not remove ball retaining clips. Cars will not roll unless they have
retaining clips. Exception: CB+cars can convert to non-CB cars. See reverse side.
Position car on edge and gently push one (1) ball
at a time from center of retaining clip.
Do not remove retaining clip from car!
Removing Ball Bearings from CB Cars
Position car on edge with retaining clip in place.
Gently push one (1) ball at a time into car from
center of clip. Allow balls to roll into return race
and insert remaining balls.
Do not overfill car!
Loading Ball Bearings into CB Cars
Ball replacement chart
CB car Description Car length Balls/car Balls Order Balls/set Ball Ø
3176/3177 Big Boat 5
3
/ 8 " (136 mm) 50 Torlon®547 25
3
/ 8 "
3178/3179 Big Boat/high-load 7
7
/ 16 " (188 mm) 72 Torlon 547 25
3
/ 8 "
Attaching Splice
Pass eye through bail and run tail through to make
a cow hitch.
Note: Insert eye down from above.
Torlon is a registered trademark of Solvay Advanced Polymers.