INSTALLATION SHEET
Crossover Blocks: 1981, 1984
N15W24983 Bluemound Rd., Pewaukee, WI 53072-4974 USA
Telephone: (262) 691-3320 • Fax: (262) 701-5780
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').
IMPORTANT: CHECK SIZING
Use following chart to check application of block based on line turning angle.
Size block to greatest anticipated angle.
Part
No.
Deck
thickness
max min
Max line
Ø
in mm
Weight incl.
fasteners
oz g
Maximum
working load
lb kg
Breaking
load
lb kg
1984
.750 .313
3
/
8
10 4.2 119 2000 907 4000 1814
1981
1.000 .375
7
/
16
12 8 227 3000 1361 6000 2721
Maximum line load to produce maximum working load of block
Part
No.
Maximum
Working Load
lb kg
lb kg
lb kg
lb kg
lb kg
1984 2000 907 1414 641 2000 907 2632 1194 3846 1746
1981 3000 1361 2122 963 3000 1361 3947 1790 5769 2617
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.
INSTALLATION SHEET
Crossover Blocks: 1981, 1984
N15W24983 Bluemound Rd., Pewaukee, WI 53072-4974 USA
Telephone: (262) 691-3320 • Fax: (262) 701-5780
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').
IMPORTANT: CHECK SIZING
Use following chart to check application of block based on line turning angle.
Size block to greatest anticipated angle.
Part
No.
Deck
thickness
max min
Max line
Ø
in mm
Weight incl.
fasteners
oz g
Maximum
working load
lb kg
Breaking
load
lb kg
1984
.750 .313
3
/
8
10 4.2 119 2000 907 4000 1814
1981
1.000 .375
7
/
16
12 8 227 3000 1361 6000 2721
Maximum line load to produce maximum working load of block
Part
No.
Maximum
Working Load
lb kg
lb kg
lb kg
lb kg
lb kg
1984 2000 907 1414 641 2000 907 2632 1194 3846 1746
1981 3000 1361 2122 963 3000 1361 3947 1790 5769 2617
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.
INSTALLATION SHEET
Crossover Blocks: 1981, 1984
N15W24983 Bluemound Rd., Pewaukee, WI 53072-4974 USA
Telephone: (262) 691-3320 • Fax: (262) 701-5780
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').
IMPORTANT: CHECK SIZING
Use following chart to check application of block based on line turning angle.
Size block to greatest anticipated angle.
Part
No.
Deck
thickness
max min
Max line
Ø
in mm
Weight incl.
fasteners
oz g
Maximum
working load
lb kg
Breaking
load
lb kg
1984
.750 .313
3
/
8
10 4.2 119 2000 907 4000 1814
1981
1.000 .375
7
/
16
12 8 227 3000 1361 6000 2721
Maximum line load to produce maximum working load of block
Part
No.
Maximum
Working Load
lb kg
lb kg
lb kg
lb kg
lb kg
1984 2000 907 1414 641 2000 907 2632 1194 3846 1746
1981 3000 1361 2122 963 3000 1361 3947 1790 5769 2617
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.
INSTALLATION SHEET
Crossover Blocks: 1981, 1984
N15W24983 Bluemound Rd., Pewaukee, WI 53072-4974 USA
Telephone: (262) 691-3320 • Fax: (262) 701-5780
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').
IMPORTANT: CHECK SIZING
Use following chart to check application of block based on line turning angle.
Size block to greatest anticipated angle.
Part
No.
Deck
thickness
max min
Max line
Ø
in mm
Weight incl.
fasteners
oz g
Maximum
working load
lb kg
Breaking
load
lb kg
1984
.750 .313
3
/
8
10 4.2 119 2000 907 4000 1814
1981
1.000 .375
7
/
16
12 8 227 3000 1361 6000 2721
Maximum line load to produce maximum working load of block
Part
No.
Maximum
Working Load
lb kg
lb kg
lb kg
lb kg
lb kg
1984 2000 907 1414 641 2000 907 2632 1194 3846 1746
1981 3000 1361 2122 963 3000 1361 3947 1790 5769 2617
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.
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