SAILTEC's Kobelt Kabel-Hebel Katalog - page 29

p u s h - p u l l c o n t r o l s
27
4605
4602
4607
MODEL NO.
STROKE (MM)
BORE (MM)
MAX (PSI)
PRESSURE
4601
1-3/4” (44)
2-1/2” (44)
250
4602
1-3/4” (44)
1-3/4”(44)
350
4” (101.6)
1-3/4” (44.45)
500
4605
6” (152.4)
1-3/4” (44.45)
500
8” (203.2)
1-3/4” (44.45)
500
Push-pull cables are not suitable for heavy workloads and become too stiff when operating
heavy clutches and throttles. The wear and tear make it uneconomical. In order to solve these
problems, Kobelt Manufacturing provides several servo cylinders which work off hydraulic
pressure. They can be used to operate C.P. propeller lever mechanisms, hard-to-handle
governor levers, jet drive buckets, etc. We can also provide controls for mechanically-actuated
reverse reduction gearboxes, if a source of hydraulic pressure is made available (150-450
p.s.i.). In all of these systems the hydraulic cylinder provides infinite, fingertip control. It does
not generate any unwanted stiffness in the push-pull system. As with all other Kobelt products
you can expect years of trouble-free service.
Model 4602
(Model 4601 not shown)
The 4601 and 4602 are frequently used to control stiff throttles. The output signal is
directly proportional to the input signal. Together with a 3015 pressure hold-back valve these
units can also be used as hydraulic throttle delays using gear oil. This, however, lends itself
only to gears having a differential pressure from the neutral position to the engaged position.
Model 4605
The 4605 cylinders consist of a double acting cylinder and a mechanically actuated spool-
type directional control valve. These cylinders are commonly used for accurate positioning of jet
buckets, controlling of C.P. propeller lever mechanisms and mechanical gear boxes.
Model 4607
The purpose of the 4607 is to provide a power assist for hard to move push-pull cable
systems. Its maximum torque is 120 in-lbs. A terminal strip is provided for connecting either
a 12V or 24V power supply. In order to install the wire, the cover for the terminal strip must
be removed and the wire must be inserted through the connector provided and fed through to
the terminal strip. The positive wire must be connected to the red wire and the negative to the
white; correct polarity is imperative so as to not damage the unit. The terminal strip is located
on the mechanical input side.
The cable coming from the control head must be connected to the input side. A pointer is
provided on the shaft to indicate its position, since the bracket can be installed in six different
ways. The lever must be removed to coincide with bracket and cable lead. The pointer must not be removed since it is the only indication
for mid position. On the output side, the bracket can be installed in eight different ways. A 3” stroke cable can be installed on the input
side and a 4” cable can be on the output side. By installing the input cable (3” stroke) on the second hole from the end of the input
lever, and installing the output cable on the last hole on the
actuator lever, it will increase the stroke to 3-3/4. On long cable
runs it is more than likely that there will be a lot of lost motion
in the incoming cable and by arranging the cable on lever the
motion can be retained.
Order 4607-12 for 12 Volt, 4607-24 for 24 Volt.
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