Harken 1981 User Manual

INSTALLATION SHEET

Crossover Blocks: 1981, 1984

N15W24983 Bluemound Rd., Pewaukee, WI 53072-4974 USA

Telephone: [phone] • Fax: [phone]

Web: http://www.harken.com • Email: [e-mail]

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.

The 1981/1984 Crossover blocks are designed for mounting behind stoppers
to allow halyards/control lines to be led to a winch mounted on either side of
cabin house. The large base spreads load to prevent damage to cored decks,
while the efficient high-load sheave eliminates friction from highly-loaded lines.
The 1984 is ideal for boats to 11.5 m (38'), while the 1981 is suitable for boats
as large as 15 m (48').

Part

No.

max min

1984
1981

1.000 .3757/

Deck

thickness

.750 .3133/

Max line

Ø

in mm

8

16

IMPORTANT: CHECK SIZING

Use following chart to check application of block based on line turning angle.
Size block to greatest anticipated angle.

Part

No.

1984 2000 907 1414 641 2000 907 2632 1194 3846 1746
1981 3000 1361 2122 963 3000 1361 3947 1790 5769 2617

Maximum

Working Load

lb kg

Maximum line load to produce maximum working load of block

lb kg

Weight incl.

fasteners

oz g

10 4.2 119 2000 907 4000 1814
12 8 227 3000 1361 6000 2721

lb kg

Maximum

working load

lb kg

lb kg

Breaking

load

lb kg

lb kg

Install Block

Drill hole to install: 1984: 25.4 mm (1");
1981: 35 mm (1

Coat inside of hole with epoxy or resin to prevent moisture absorption in core or
between laminates. Let cure before installation.

Tip: Put slight bevel at top of hole to allow sealant to mass around upper part
of hole.

3

/8").

Install block using sealant in hole. Also apply sealant to circular groove on
underside of base. Use Blue Loctite

Loctite is a registered trademark of Henkel AG & Company KGaA.

®

adhesive (provided) on threads.

Maintenance and Inspection

Harken equipment requires minimal maintenance, but some is required to give the best
service and to comply with Harken's limited warranty.

Periodically inspect all fasteners to make sure they are secure. Tighten using thread­locking solution or replace lock nuts. Make sure mounting structure is sound and repair
as necessary.

It is important to keep equipment clean by frequently flushing with fresh water. In
corrosive atmospheres, stainless parts may show discoloration around holes, rivets,
and screws. This is not serious and may be removed with a fine abrasive.

With the exception of winches, do not use grease unless specifically recommended in
the instruction sheets.

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 4039 06/14