INSTRUCTIONS
Loop Block
3195, 3196, 3199, 3201
Telephone: (262) 691-3320 • Fax: (262) 691-3008 Web: http://www.harken.com • E-mail: harken@harken.com
1251 East Wisconsin Avenue • Pewaukee, WI 53072 U.S.A.
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.
Parts
Part
Sheave
No.
Ø
1
3
4
6
6
2
1) Head
2) Sideplates
3) Sheave
4) Dead-End Post
5) Block Mouth
6) Screw
7) Allen Wrench
8) Blue Loctite
5
3195
57mm 2500 1134 5,000 2268 5mm
3196
75mm 5,000 2,268 10,000 4536 8mm
3199
100mm 7,500 3,402 15,000 6804 11mm
3201
125mm 11,000 4,990 22,000 9977 14mm
®
Loop and/or High Strength Lashing Line
Refer to chart above and choose loop and/or high strength lashing that
matches or exceeds break strength (BS) of block. Note: See chart for
7
maximum line diameter that will fit through mouth.
WARNING! Webbing or smaller lashings can be damaged by being
pinched between post and sideplate. Damaged webbing or lashings
can part suddenly under load. Use only loops when terminating at
dead-end post.
WARNING! Knots weaken line considerably. Consult qualified rigger
or line manufacturer for advice on securing line. Use high strength
8
loops or consult rigger for recommendations on lashing. Using the
wrong line or securing the line improperly can cause an accident.
= Incorrect. Avoid to prevent accidents.
Specifications
Maximum Working Load
(MWL)
lb kg lb kg
Breaking Load
(BL)
You Must Supply
Max line Ø
that fits
through mouth
Loop Block Replacement Part Numbers
Part
No.
3195
3196
3199
3201
Part
No.
3195
3196
3199
3201
Part
No.
3195
3196
3199
3201
Sheave ØSideplate ASideplate
57mm H-43623 H-43624
75mm H-43456 H-43457
100mm H-43757 H-43758
125mm H-43814 H-43815
Sheave
w/Side Balls
H-21635B HBB85
H-21550B HBB86
H-22123B HBB87
H-23750C HBB88
Screw
HFS796 H-43625
HFS806 H-43461
HFS816 H-43759
HFS814 H-43816
Roller Cage
Assembly
Dead-End
Post
Small Control Line Included
4' (1.2 m) line included for lashing to head.
B
Sideplate A
Block
Part No.
3195
3196
Dead-End
Post
Replacement
Part No.
HCP1438 2 mm
HCP1419 2.5 mm
Roller Cage
Assembly
Sheave
Line
Length
Sideplate B
Block
Part No.
3199
3201
Replacement
Part No.
HCP1419 2.5 mm
HCP392 3 mm
Length
Line
Screw
Terminating to Dead-End Post
WARNING! Webbing or smaller lashings can be damaged by
being pinched between post and sideplate. Damaged webbing
or lashings can part suddenly under load. Use only loops when
terminating at dead-end post.
Terminating to dead-end post lets you attach block to a closed bail such
as a padeye.
5. Open sideplates without
pulling line through block.
Dead-end post
1. Remove screw..
2. Remove dead-end post.
Loop
6 Part legs of loop and insert
dead-end post. Make sure
dead-end post is seated
straight in sideplate. Put
sideplates together.
Dead-end post
WARNING! If sideplates are angled to one another, dead-end post
is not seated correctly. This will cconsiderably weaken the block so
it can easily break under load. Block sideplates must be parallel to
one another when assembled.
Sideplates are not parallel
3. Insert loop into block
mouth as shown.
4. Pass loop ends through
mouth so loops extend
beyond block's sideplates
as shown.
7. Pull loops to seat ends
on dead-end post.
8. Reassemble block using
blue Loctite® on screw.
9. Lash loop to head of
block with small control
line using a Carrick bend or
a square knot and run tail
up behind wrap, then down,
and under itself on each side
of knot. Pull tight to secure.
For knot tying resources see
www.harken.com/knots.
10. Further secure stop knot
by carefully melting line
ends with a hot knife.
WARNING! If lashing comes loose, block can flip and cause line
to jam, resulting in loss of control. Inspect lashing often and
redo if necessary.
If lashing comes loose block
can flip so that sheet rides
off sheave.
WARNING! Attaching line to block head will considerably weaken
block so it can easily break under load. Attach loop/lashing only
through mouth of sheave.
3. Re-assemble block. Use
blue Loctite
®
on screw.
Do not attach
to head
Terminating Loop Outside Block or Using Lashing
If terminating line outside block or lashing using multiple strands
of smaller-diameter line you must remove the dead-end post.
1. Use allen wrench
to remove screw.
2. Remove dead-end post.
Dead-end post
4. Lash loop to head of
block with small control
line using square knot. Run
line ends up and behind
lashing, then down and
under itself on each side
of knot. Pull tight to secure.
5. Secure stop knot by
carefully melting line
ends with a hot knife.
WARNING! Using a loop in a choker style weakens the loop
connection. Do not use choker style connection.
ALL INSTALLATIONS
Anchor Point Chafing or Cutting
WARNING! Loops or lashings running over a sharp edge can cause
part to break under load. Attach to fitting with a rounded edge.
3. Inspect loops and lashings. Replace if there are signs of wear or if the
colored tracer fades from UV damage.Pull loop out of mouth and inspect
loop/lashing carefully for any signs of wear, UV-damage, fatigue or strand
separation. Replace loop if it shows signs of UV-damage or wear.
WARNING! Failure to replace damaged or weakened parts can
cause part to break under load. Replace all loops and lashings
every year or if there is any sign of wear, UV damage, fatigue
or strand separation. If in doubt replace. Consult chart to match
strength of loop/lashing to block and load.
4. Inspect lashing at head
of block to make sure knot
is holding tightly.
Loops must be attached to round bails such as those found on padeyes
or pins. Sharp edges on many perforated toerails will cut loop, severely
weakening it. When loop is attached to a plate, it must be at least 1/4"
thick and have rounded edges to keep loop from being damaged.
Round edges to prevent
damage to loop
Sharp edges will
damage loop
Inspect Parts Every Time you Sail
WARNING! Failure to inspect and correct block and loop or
lashing may result in block breaking under load. Inspect parts
each time you sail. If parts are under load during long passages
it is important to inspect them carefully while in use.
1. Inspect block to make
sure that screw is secure.
If screw is loose, remove
it, use blue Loctite
it in place and retighten.
2. Inspect sideplates to
make sure they are parallel
to each other. If they are
angled dead-end post may
not be seated. Take block
apart, install bail correctly
and secure with screw and
blue Loctite
®
to hold
®
.
Maintenance
Harken equipment is designed for minimal maintenance, but some maintenance
is required to give the best service and to comply with the Harken limited warranty.
Cleaning: Flush blocks and loops/high strength lashing lines thoroughly with fresh
water. Periodically, disassemble the blocks and clean with detergent and fresh water.
When assembling block, make sure screws and holes are dry. Use blue Loctite® to
secure screw before assembling.
Important: Exposure to some teak cleaners and other caustic solutions can result
in discoloration of part and is not covered under the Harken warranty.
Warranty
For additional safety, maintenance and warranty information see www.harken.com/
manuals or the Harken® catalog.
Printed in USA. 4641 04-12
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