Venturo ET8K, Installation & Owner'S Manual

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SUPERCEDES
TITLE DATE
SECTION
CINCINNATI, OHIO
MFG., INC.
900530b
C200
5-26-06C
5-27-06D
INSTALLATION DWG
CONTROL FUNCTIONS
WINCH "UP" and "DOWN" - Raises and lowers the load with the wire rope.
POWER ELEVATION - "Up" raises the boom elevation by operating the valves and the
electric hydraulic power unit. "Down" operates a solenoid release valve mounted on the
cylinder to lower the load and/or boom by gravity at a controlled rate. A check valve on the
cylinder prevents the boom from coming down if a hose breaks. A flow control valve controls
lowering rate.
POWER EXTENSION - "Out" and "In" extend and retract boom 4 ft. under power. A pilot
operated check valve on the boom prevents the boom retracting without hydraulic power or if a
hose should break. A flow control valve controls retract rate under load.
POWER ROTATION - "L" & "R" control direction of rotation. The ET8KX, ET10KX or ET12KX
can be rotated continuously thru 360 degrees or more. There are no internal restrictions on the
number of rotations in any direction.
CONTROL PRIORITY SYSTEM - As a built in safety feature, the operator can perform only one
major and one minor function at any one time. Major functions are rotation, winching up of a
load, and elevating, extending and retracting the boom. Minor functions are winching down,
and lowering the boom.
a. "Winch Up" has priority over "Boom Up", "Boom Out & In", and "Rotation"
b. "Boom Up" has priority over "Boom Out & In", and "Rotation".
c. "Boom Out & In" have priority over "Rotation".
d. "Boom Down" and "Winch Down" can be operated with any function.
CRANE OPERATION
Avoid rapid reversal of the Winch and Rotation Control Switches. The high inrush current to
the motors during reversal can reduce the life of the contactors and the motor brushes and
commutators.
When operating "Winch Up", "Boom Down" or "Boom Out" always maintain clearance
between the boom head and the snatch block or hook.
Do not lift or drag a load sideways using any of the crane functions. The boom has much lower
bending strength sideways than in the vertical direction.
ET8/10/12K(X)