Harken 3139 User Manual
INSTRUCTIONS
LOUPS
®
3139, 3140, 3141, 3142, 3143, 3144, 3145, 3146, 3147, 3148, 3149, 3150, 3202, 3203, 3151 (Dogbone)
Tel: 262-691-3320, Fax: 262-701-5780 • Web: www.harken.com, Email: harken@harken.com
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.
Loups® offer a variety of ready-made soft attachment rigging solutions for racing and cruising yachts. When fitting hardware, choose the Loup® that exactly
matches the attachment method and strength shown in the chart below. Custom length Loups are also available. If you have questions, please contact Harken.
Loup strength will vary depending on: Configuration – One configuration may be more than twice as strong as another. Carefully match strength requirements to the
configuration and corresponding SWL shown in the chart below. Attachment Points – Determine weakest link in the attachment chain. Is it the block? The Loup? The
padeye? Consult chart below for padeye loading at various angles. Condition of Attachment – Loup must attach to round bails or radiused corners. Sharp, rough edges
or corners will cut into Loups, reducing their strength over time. Age of Loup – Strength of Loup is based on their being in like new condition. See chart below.
Loup®
Part
No.
5mm — ONE YELLOW, TWO ROWS OF DARK-COLORED TRACERS
3202
7mm — ONE YELLOW, FOUR ROWS OF DARK-COLORED TRACERS
3203
9mm — TWO (2) ROWS OF COLORED TRACERS
3139
3140
3140
10mm — THREE (3) ROWS OF COLORED TRACERS
3142
3143
3144
11mm — FOUR (4) ROWS OF COLORED TRACERS
3145
3146
3147
12mm — FIVE (5) ROWS OF COLORED TRACERS
3148
3149
3150
Length Vertical Choker With Dogbone Basket
in mm lb kg lb kg lb kg lb kg
8 203 1275 578 1000 453
10 254 2550 1155 2040 920
4 100 2800 1270 2240 1015 — — 5600 2540
8 200 2800 1270 2240 1015 — — 5600 2540
11 280 2800 1270 2240 1015 — — 5600 2540
5 125 4200 1900 3360 1520 — — 8400 3810
9 230 4200 1900 3360 1520 — — 8400 3810
15 380 4200 1900 3360 1520 5645 2560 8400 3810
5 125 5700 2585 4560 2065 — — 11400 5170
9 230 5700 2585 4560 2065 — — 11400 5170
16 400 5700 2585 4560 2065 — — 11400 5170
6 150 7150 3240 5680 2575 — — 14200 6440
11 280 7150 3240 5680 2575 — — 14200 6440
17 430 7150 3240 5680 2575 — — 14200 6440
N15W24983 Bluemound Rd., Pewaukee, WI 53072-4974 USA
Loup® Strength
Maximum Working Load (MWL)
— —
— —
2550 1156
5100 2310
= Incorrect. Avoid to prevent accidents.
Vertical
With Dogbone
Choker
Basket
Harken® Padeye Strength
MWL
WARNING! Load applied sideways to the bail greatly
reduces the strength. Always align padeye bail to load
for maximum strength to prevent breakage below
Maximum Working Load.
MWL: Maximum Working Load
Even when bail is aligned with load, padeye strength will vary depending on load angle—see below.
Part
No.
627
629
648
689
Description
Small round 5000 2270 4500 2040 4300 1950
Large round 20000 9070 12000 5440 14000 6350
High-load medium 11800 5358 10375 4705 8500 3855
Large diamond 8500 3855 8000 3628 7800 3540
MWL
1 2 3
lb kg lb kg lb kg
Maximum Working Load (MWL)
Load
Angle
1
2
3
Attaching Loups® to Blocks
WARNING! Block may break suddenly if attached incorrectly. Before attaching Loup you must understand block manufacturer's directed method of attachment. Some blocks are designed to secure Loup to head and others to attach Loup through
center of sheave or to protrusions coming out from center of sheave. Attaching Loups improperly may cause an accident.
Harken® Straphead Block
Attach Loup to head only
if you are sure that it is a
Harken Straphead block.
Harken Straphead blocks
have two screws in head
(see photo at right).
Screws
Harken Grand Prix High-Load Snatch Block
WARNING! Attaching Loup to block head will
considerably weaken block so it can easily break
under load. Attach Loups only to thimble at
sheave center.
Do not attach
to head
Harken Black Magic® Loop Block
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.
Do not attach
to head
Thimble
Attaching to Blocks or Hardware
WARNING! If Loups are stacked they will push outward
on block sideplates when load is applied, causing block
to break especially if crosspin is held using a cotter pin.
This can cause an accident. Make sure Loup can lie
side-by-side.
Make sure Loup will lie, sideby-side between Loup and
sheave. Loups will settle and
flatten when load is applied.
If Loup is stacked (one strand
on top of the other) even a
small amount, line can push
outward and break sideplate.
Mouth
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