Harken T2701B User manual

ONLINE INSTRUCTIONS
27 mm Midrange CB Traveler 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]
IMPORTANT! See Inspection and Maintenance at end of manual.
One-piece car body: Machined from 6061-T6 aluminum for strength and durability.
Hard Lube-anodized: PTFE coated for durability.
Captive ball bearings: Cars easy to load and maintain.
Free running ball bearings in car and control blocks: Easy to adjust car under load.
Newer style CB+ cars: Can convert to old-style non-CB track.
Features
AB
C
Dimensions
Part No. Description
ABC
Maximum
working load
Breaking
load
in mm in mm in mm lb kg lb kg
T2701B Car/shackle 4
1
/ 4 108 2
3
/ 4 70 2 50 1800 816 5000 2268
T2701B.HL High-load car/shackle 5
3
/ 16 132 2
3
/ 4 70 2 50 2300 1043 5000 2268
T2702B Car/stand-up toggle 4
1
/ 4 108 2
3
/ 4 70 3
1
/ 8 80 1800 816 5000 2268
T2702B.HL High-load car/stand toggle 5
3
/ 16 132 2
3
/ 4 70 3
1
/ 8 80 2300 1043 5000 2268
T2703B Car/stand-up toggle/ears 4
1
/ 4 108 2
3
/ 4 70 3
1
/ 8 80 1800 816 5000 2268
T2703B.HL High-load car/stand-up toggle/ears 5
3
/ 16 132 2
3
/ 4 70 3
1
/ 8 80 2300 1043 5000 2268
T2704B.HL 2 cars/2 stand-up toggles 8
3
/ 4 222 2
3
/ 4 70 3
1
/ 8 80 3600 1632 7200 3266
T2705B Car/soft attachment 4
1
/ 4 108 2
3
/ 4 70 1
1
/ 2 38 1800 816 5000 2268
T2705B.HL High-load car/soft attachment 5
3
/ 16 132 2
3
/ 4 70 1
1
/ 2 38 2300 1043 5000 2268
T2721B Car/shackle/2:1 controls 4
1
/ 4 108 3 76 2 50 1800 816 5000 2268
T2721B.HL High-load car/shackle/2:1 controls 5
3
/ 16 132 3 76 2 50 2300 1043 5000 2268
T2722B Car/stand-up toggle/2:1 controls 4
1
/ 4 108 2
3
/ 4 70 3
1
/ 8 80 1800 816 5000 2268
T2722B.HL High-load car/stand-up toggle/2:1 controls 5
3
/ 16 132 2
3
/ 4 70 3
1
/ 8 80 2300 1043 5000 2268
T2731B Car/shackle/3:1 controls 4
1
/ 4 108 3
7
/ 32 81 2 50 1800 816 5000 2268
T2731B.HL High-load car/shackle/3:1 controls 5
3
/ 16 132 3
7
/ 32 81 2 50 2300 1043 5000 2268
T2732B Car/stand-up toggle/3:1 controls 4
1
/ 4 108 3
1
/ 4 82 3
1
/ 8 80 1800 816 5000 2268
T2732B.HL High-load car/stand-up toggle/3:1 controls 5
3
/ 16 132 3
1
/ 4 82 3
1
/ 8 80 2300 1043 5000 2268
T2741B Car/shackle/4:1 controls 4
1
/ 4 108 3
3
/ 8 86 2 50 1800 816 5000 2268
T2741B.HL High-load car/shackle/4:1 controls 5
3
/ 16 132 3
3
/ 8 86 2 50 2300 1043 5000 2268
T2742B Car/stand-up toggle/4:1 controls 4
1
/ 4 108 3
3
/ 8 86 3
1
/ 8 80 1800 816 5000 2268
T2742B.HL High-load car/stand-up toggle/4:1 controls 5
3
/ 16 132 3
3
/ 8 86 3
1
/ 8 80 2300 1043 5000 2268
T2744B.HL 2 cars/2 stand-up toggles/4:1 controls 8
3
/ 4 222 2
3
/ 4 70 3
1
/ 8 80 3600 1632 7200 3266
Terms
Control
blocks
Stand-up
toggle
Deadend
bail
Shackle
Center
openings
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.

A
B
C
Curved Track Limitations
Cars will not roll on curved track if the radius is under the minimum listed below. A shorter car can
roll on a smaller radius. Refer to the chart below and make sure the radius is equal to, or greater
than the radius listed for the car. To find the radius go to www.harken.com.
Track for Unsupported Spans
Harken high-beam track is designed for unsupported spans.
The length of span depends on the load on the car. The higher
the car load, the less span the track can handle. If the car is
sized correctly, car length determines the spanning capability.
Longer, high-load (HL) cars require shorter spans because
the loads are so much greater. See track-spanning chart in
track instructions or at www.harken.com.
Stand-up toggle
Soft
attachment post
Stand-up toggles – Harken stand-up toggles fit
specifc Harken blocks. To determine mainsheet
block compatibility, see 4501 instructions online:
www.harken.com/manuals
Soft attachment (T2705B, T2705B.HL) – To attach
loops or straps, remove stop screws and push
attachment post out. Assemble post using blue
Loctite®adhesive on screws.
Attaching Mainsheet and Control Blocks
Radius*
*Applies to vertical
and horizontal bends
Mid-boom
End-boom
SPAN (inches/meters)
SAIL AREA (feet2/meters2)
Monohulls Only
R27 mm High-beam
track spanning chart
Car Minimum radius
ft m
1624, 1626, 1628, 1635,T2701B,
T2702B, T2703B, T2721B,
T2731B, T2741B, T2705B
8 2.44
1625, 1627, 1629, 1636, T2701B.HL,
T2702B.HL, T2703B.HL, T2721B.HL,
T2731B.HL, T2741B.HL, T2705B.HL
9 2.73
Part No. ABC
in mm in mm in mm
Low-profile track
1602.6, 1602.8, 1602.12,
R27.1, R27.1.2, R27.1.5M,
R27.1.8, R27.2.M, R27.2.5M,
R27.3M, R27.3.6M, R27.6M
1
1
/ 16 27
9
/ 16 14 1 25
High-beam track
R27HB.1, R27HB.1.5M,
R27HB.1.8M, R27HB.2.5M,
R27HB.3.6M
1
1
/ 16 27 1
5
/ 8 42 1
7
/ 32 31
Track Compatibility
CB cars are shipped for use on CB track with grooves at waist to accept retaining clips first supplied
by Harken in 2002. See end of manual if you have older track.
Grooves for
retaining clips.
CB Track
1602, R27
High-
beam
A
B
C
Installing CB 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 end of manual.
R27HB
Loctite is a registered trademark of Henkel AG & Company KGaA.

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
Car Length Balls/car Balls Order Balls/set Ball Ø
T2701B, T2702B, T2703B, T2705B, T2721B,
T2722 B, T2731B, T2732B, T2741B, T2742B 4
1
/ 4 " (108 mm) 48 Torlon®1526 25
5
/ 16 " (8 mm)
T2701B.HL, T2702B.HL, T2703B.HL, T2705B.HL,
T2721B.HL, T2722B.HL, T2731B.HL, T2732B.HL,
T2741B.HL, T2742B.HL
5
3
/ 16 " (132 mm) 60 Torlon 1526 25
5
/ 16 " (8 mm)
T2704B.HL, T2744B.HL (coupled car assemblies) 8
3
/ 4 " (222 mm) 48 x 2* Torlon 1526 25
5
/ 16 " (8 mm)
*Coupled car assembly–each car has 48 balls.
Reeving Cars and Ball Bearing End Control Blocks
2:1 purchase
3:1 purchase
4:1 purchase
Attaching Splice to Deadend on Car or Controls
To attach premade splice, pass eye through bail and run tail
through to make a hitch without undoing bail. If line is too
large for this, remove one screw and rotate deadend eyestrap
to load the splice. Reassemble screws using thead-locking
solution such as blue Loctite®adhesive.
Reeving Cars and End Control Blocks
3
4
1
1
2
2
1
2
3
1
2
3
4
6
5
3
4
1
1
2
2
1
2
3
1
2
3
4
6
5
3
4
1
1
2
2
1
2
3
1
2
3
4
6
5
2:1 purchase
3:1 purchase
4:1 purchase
Loctite is a registered trademark of Henkel AG & Company KGaA.
Torlon is a registered trademark of Solvay Advanced Polymers.

CB + Cars can Convert to Fit Old-Style, Non-CB Track
Removing Ball Bearings from CB Cars
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!
Retaining clip
3. Remove retaining clips and corner keepers
over box to catch balls.
Important! Requires CB+cars. See complete instructions at www.harken.com/manuals.
1. Use flat-bladed screwdriver to push retaining
clip toward end.
5. Remove two (2) clips from car loader. Slide
car loader in so loading port is on the side
of car without balls.
2. Pry retaining clip off and dump balls in box.
4. Hold car on edge and load lower side with
correct number of balls. DO NOT OVERLOAD.
Consult chart to confirm quantity.
6. Put one (1) clip on "open" end of loader.
Load rest of balls through ball loading port
into empty bearing race. Consult chart to
confirm quantity. Line up car loader with
track and gently roll car onto track.
Do not use corner keepers.
Converting CB +Cars to Run on Non-CB Track
CB+cars designed for CB track. Order HMR2 car loader.
Track built after 2002. No need to convert car. Track built before 2002.
Groove for
retaining clip.
CB track Non-CB track
CB+cars can convert to run
on old-style, non-CB track.

Traveler cars: Clean by frequently flushing with fresh water. Periodically clean
car by squirting a detergent/water solution into center openings. Roll car back
and forth to distribute evenly. Flush bearings with fresh water.
Do not use spray lubricants because ball bearings can skid, not roll. Once car and
track are dry, apply one (1) to two (2) drops of McLube®OneDrop™ball bearing
conditioner to ball contact surfaces of track. Roll car back and forth through
OneDrop conditioner several times to distribute onto bearings. Wipe remaining
OneDrop off track. OneDrop conditioner is preferred, but you can also use one (1)
to two (2) drops of a light machine oil. Too much oil attracts dirt.
Track: Clean with detergent and water.
Important! Exposure to some teak cleaners and other caustic solutions can
result in discoloration of part and is not covered under the Harken warranty.
M1008 02/15
Maintenance
Warranty
Inspect
Frequently inspect shackles and control block fittings for signs of fatigue. Replace as necessary.
Make sure every installation includes Harken track endstops. Arrange control tackle so cars do
not hit endstops under load.
McLube is a registered trademark of McGee Industries, Inc.
OneDrop is a trademark of McLube, a division of McGee Industries, Inc.
For additional safety, maintenance, and warranty information see www.harken.com/manuals
or the Harken catalog.