SCORPIO 38’ - 45’ - PARTS AND COMPONENTS DESCRIPTION - Leveling head
Version 1.02 May 27, 2022
SERVICEVISION BIS SL
Ríos Rosas, 20 · 08940 CORNELLA DE LLOBREGAT (Barcelona) Spain · Tel. 34 93 223 86 30 · Fax 34 93 223 86 31 39
comercial@servicevision.es · www.servicevision.es
2.7.1 INSIDE THE LEVELING HEAD
The Leveling Head has a motor mounted in vertical that transmit the movement to an endless screw
attached to the back of the Mitchell mount using a belt. When the screw turns, it lifts up or down the
back part of the Mitchell mount and changes the level of it.
The components inside the leveling head are:
A. Servo board for the LH: This Servo board controls the axis of the
LH. It receives information from the CCU, the Encoder in the tilt of
the crane, the inclinometer and the absolute encoder in the LH
and processes all that information to move the motor inside the
L.H. in order to find the level set by the factory.
B. Driver for the L.H.: This is the driver board for the motor inside
the L.H. It amplifies the signals from the SERVO of the arm to
move the motor. It is powered by DC voltage.
C. Voltage regulator: It stabilizes the power arriving to the L.H. and
amplifies the voltage for the driver.
D. Absolute encoder: It is adjusted by the factory with a precision
of ±0.00001 º. It sends to the servo information about where is the
horizon level.
E. Inclinometer (fig. 02.116). This sensor gives information to the
servo about the actual degrees of the crane. Only it is used when
the crane starts and search for level.
Under the top cover there is access to the motor and the belt of the
LH. To tight the belt, loose the 4 screws holding the motor and push
the motor to apply tension to the belt. To remove it, lose the 4 screws
and the tension of the belt will be released.
• Commercial reference for LH motor belt: T5 350
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