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7147 full power follow-up
The 7147 Full Power Follow-Up is the latest development
from Kobelt in the steering gear line. This unit is an extremely
compact device, and provides the ultimate in simplicity as
far as installation and maintenance is concerned.
This unit is primarily designed for boats from 30 ft.
to 80 ft., depending on power and speed.
Its function is to turn manual steering into power steering,
which will provide the operator with fingertip control over the
rudder. A source of hydraulic pressure is required to make this
unit functional. It is capable of handling up to 8 gallons per
minute at 1000 PSI. Should, however, the hydraulic power fail,
the valving arrangement will switch this unit automatically to
manual steering. Additional turns and effort will be required for
the manual mode. This provides the ultimate safety.
It can be used with a single cylinder or twin cylinder installation.
This is achieved by adding one cylinder and two hoses.
Our 7144/45 for Auto Pilot Jog Lever Interface,
can easily be incorporated into the system.
Maximum rudder torque of 5,000 ft.
lbs. or 700 Kilogram Meters. The cylinder is
available in 7-1/2, 10 and 12 inch stroke.
It is constructed entirely in bronze and
stainless steel.
Since a full power follow-up valve and servo cylinder are
incorporated onto the main cylinder, no linkage is required to
make this unit work.
Weight
35.3 lbs. (16.0 kg)
U.S. Patent No. 5, 289, 756
Further patents pending.
MODEL TORQUE STROKE DISPLACEMENT A B C D E
lbs. ft. kgm in mm in 3 cm 3 in mm in mm in mm in mm in mm
1050 145 7.5 191 17.67 290 3.75 95 24.25 616 6.54 166 5.95 151 21.63 549
7147 1400 193 10 254 23.56 386 5 127 29.25 743 8.72 221 7.93 201 25.38 645
1680 232 12 305 28.27 463 6 152 33.25 845 10.46 266 9.51 242 28.38 721
RUDDER ANGLE (RA) 45°
RUDDER ANGLE (RA) 35°
– – 7.5 191 17.67 290 3.75 95 24.25 616 5.30 135 4.52 115 21.63 549
7147 980 135 10 254 23.56 386 5 127 29.25 743 7.07 180 6.03 153 25.38 645
1200 166 12 305 28.27 463 6 152 33.25 845 8.49 216 7.25 184 28.38 721
F G H K L
in mm in mm in mm in mm in mm
3 5 /8 92.1 4 1 /8 104.8 25 /64 9.94 55 /64 123.44 27 /64 112.3
HP – Helm Pump Line
P – Pressure Line
T – Tank Return Line
20
hydraulic steering and accessories