|
The 2047 control head is intended to control two hydraulic gear boxes
with the lever type valves and two engines with lever type speed control
devices. The control head must be installed in a location where there is
sufficient space to operate the control handles. The surface where the
control head is mounted must be flat and smooth and solid enough to withstand
the human effort imposed on the handle. The control head lever mechanism
for the clutch and the throttle are arranged so that the cable can be installed
to either push or pull. The clutch valve mechanism on a marine gear is
arranged so that it requires approximately 2 3/4" (70mm) or 3" (76mm)
of travel. Consequently, the cable must be attached on the clutch cam
(item "A") in the outermost hole of the support bracket (item
"B"), as shown in Diagram 1. The neutral safety switch can
also be installed, by attaching it to the mounting holes (item "C") as
shown in Diagram 1. The switch is operated by the cam (item "D"),
shown in Diagram 1.
Diagram 1
|
Click on the image to see full
view.
|
 |
It is possible that on some marine applications with twin
engines, that both engines are turning in the same direction, therefore
one gear box is running in the reverse gear position when driving the
propeller ahead. For this particular installation the cable can be
connected on the opposite side of the support bracket and cam,
giving a push and pull mode for either gear. The throttle is always
connected with a double clamp (item "E" shown in Diagram 1).
This
provides either push or pull for the throttles by installing a cable on the
opposite side of the support bracket and cam, reversing the movement. |
|
The maximum throttle travel that can be obtained is 2 3/8" or 60 mm. There are three different mounting holes
provided for the cable adapter and the proper connection must be selected
in order to achieve idle to full speed on the engine speed device.
The 2047 control head is ideal for a single station application only, and
must not be connected to any other control device. In order to
accelerate the engine in a neutral position the handles must be pulled out
sideways. The throttle is
equipped with a nylon friction block (item F) as shown in diagram 1.
This can be adjusted with a 3/16 hex wrench from the top side (the dome
must be removed).
Diagram 2
|
Click on the image to see full view.
|
|
|
In Diagram 2, Position A shows
the clutch actuating pivot plate in the gear engaged position, and the
control handle in the full speed position. The cable must extend
slightly beyond the attaching point on the clutch actuating pivot
plate in the pull mode. The cable must also retract slightly
beyond Position B in the push mode with the control head in a
full speed position.
In order to obtain equal travel in both positions on
the cable, the adapter kit cable-end must be adjusted
accordingly. After the proper position is found, the cable-end
is attached to the clutch actuating pivot plate. The locking nut
must be secured. This will ensure that no mechanical binding
takes place in the cable or the control head. It is also very
important that the clutch control valve goes from neutral to both gear
engaged positions without bottoming. A slight amount of end play
is essential. The throttle cable is attached to the
throttle actuating pivot plate must also operate within the available
stroke of the cable. NOTE: The adapter kit cable-end,
again, MUST be adjusted in such a manner to avoid bottoming of the
control cable in either direction. In order to obtain full
handle travel in the speed range, it is important to select the
appropriate connection point for the adapter kit, on the throttle
pivot plate. Return
to Top |
|
|
