Harken 3220 Black Magic Footblock Manuale Utente

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INSTRUCTION SHEET
Black Magic Footblocks
N15W24983 Bluemound Rd., Pewaukee, WI 53072-4974 USA
Tel: 262-691-3320, Fax: 262-701-5780 • Web: www.harken.com, Email: [email protected]
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.
Angle of
deflection Load factor
Angle of
deflection Load factor
Angle of
deflection Load factor
30° 52% 90° 141% 150° 193%
45° 76% 105° 159% 160° 197%
60° 100% 120° 173% 180° 200%
75° 122% 135° 185%
Block load increases when the line turns at a greater angle. Block loads
double when the line turns 180 degrees. See example below. Select blocks
carefully.
Block Loading vs Angle of Deflection
Example shows single
footblock with a sheet
load of 5000 lb (2268kg)
8650 lb
(3923kg)
5000 lb
(2268kg)
5000 lb
(2268kg)
5000 lb
(2268kg)
10000 lb
(4535kg)
5000 lb
(2268kg)
5000 lb
(2268kg)
3800 lb
(1723kg)
5000 lb
(2268kg)
5000 lb
(2268kg)
7000 lb
(3175kg)
5000 lb
(2268kg)
INSTRUCTION SHEET
Black Magic Footblocks
N15W24983 Bluemound Rd., Pewaukee, WI 53072-4974 USA
Tel: 262-691-3320, Fax: 262-701-5780 • Web: www.harken.com, Email: [email protected]
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.
Angle of
deflection Load factor
Angle of
deflection Load factor
Angle of
deflection Load factor
30° 52% 90° 141% 150° 193%
45° 76% 105° 159% 160° 197%
60° 100% 120° 173% 180° 200%
75° 122% 135° 185%
Block load increases when the line turns at a greater angle. Block loads
double when the line turns 180 degrees. See example below. Select blocks
carefully.
Block Loading vs Angle of Deflection
Example shows single
footblock with a sheet
load of 5000 lb (2268kg)
8650 lb
(3923kg)
5000 lb
(2268kg)
5000 lb
(2268kg)
5000 lb
(2268kg)
10000 lb
(4535kg)
5000 lb
(2268kg)
5000 lb
(2268kg)
3800 lb
(1723kg)
5000 lb
(2268kg)
5000 lb
(2268kg)
7000 lb
(3175kg)
5000 lb
(2268kg)
INSTRUCTION SHEET
Black Magic Footblocks
N15W24983 Bluemound Rd., Pewaukee, WI 53072-4974 USA
Tel: 262-691-3320, Fax: 262-701-5780 • Web: www.harken.com, Email: [email protected]
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.
Angle of
deflection Load factor
Angle of
deflection Load factor
Angle of
deflection Load factor
30° 52% 90° 141% 150° 193%
45° 76% 105° 159% 160° 197%
60° 100% 120° 173% 180° 200%
75° 122% 135° 185%
Block load increases when the line turns at a greater angle. Block loads
double when the line turns 180 degrees. See example below. Select blocks
carefully.
Block Loading vs Angle of Deflection
Example shows single
footblock with a sheet
load of 5000 lb (2268kg)
8650 lb
(3923kg)
5000 lb
(2268kg)
5000 lb
(2268kg)
5000 lb
(2268kg)
10000 lb
(4535kg)
5000 lb
(2268kg)
5000 lb
(2268kg)
3800 lb
(1723kg)
5000 lb
(2268kg)
5000 lb
(2268kg)
7000 lb
(3175kg)
5000 lb
(2268kg)
INSTRUCTION SHEET
Black Magic Footblocks
N15W24983 Bluemound Rd., Pewaukee, WI 53072-4974 USA
Tel: 262-691-3320, Fax: 262-701-5780 • Web: www.harken.com, Email: [email protected]
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.
Angle of
deflection Load factor
Angle of
deflection Load factor
Angle of
deflection Load factor
30° 52% 90° 141% 150° 193%
45° 76% 105° 159% 160° 197%
60° 100% 120° 173% 180° 200%
75° 122% 135° 185%
Block load increases when the line turns at a greater angle. Block loads
double when the line turns 180 degrees. See example below. Select blocks
carefully.
Block Loading vs Angle of Deflection
Example shows single
footblock with a sheet
load of 5000 lb (2268kg)
8650 lb
(3923kg)
5000 lb
(2268kg)
5000 lb
(2268kg)
5000 lb
(2268kg)
10000 lb
(4535kg)
5000 lb
(2268kg)
5000 lb
(2268kg)
3800 lb
(1723kg)
5000 lb
(2268kg)
5000 lb
(2268kg)
7000 lb
(3175kg)
5000 lb
(2268kg)
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Sommario

Pagina 1 - INSTRUCTION SHEET

INSTRUCTION SHEETBlack Magic FootblocksN15W24983 Bluemound Rd., Pewaukee, WI 53072-4974 USA Tel: 262-691-3320, Fax: 262-701-5780 • Web: www.harken.com

Pagina 2

Installing BlockPrinted in USA 4546/10-13Keep your equipment clean and free-running by frequently flushing with fresh water. Periodically clean wit

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