SECTION 7 –
SPRAY SYSTEMS
7-15
manifold, Hagie-installed modules, NORAC
center sensor, and the NORAC lift/level
hydraulic manifold.
Level Cylinders
The Level Cylinders (located on the left
and right-hand side of the transom) are
responsible for the up and down movement of
the boom wings when the level controls are
activated.
Roll Cylinder
The Roll Cylinders extend and retract,
which provide the “roll” functions to aid in
re-centering the boom for transport.
The Roll Cylinders are automatically
placed into a “passive roll state” when the
main booms are in the UNFOLDED position.
This means the booms will be free to move on
the pendulum assembly at this point. The
hydraulic valves and cylinders will not stop
this from occurring.
Proximity Sensors
External Proximity Sensors are located at
the 70-ft. fold. The motions of the boom
(folding and unfolding) are guided by the
measured position of the different cylinders.
NOTE: The Proximity Sensors are factory-
positioned and should not require
calibration. Contact Hagie Customer
Support if boom positioning
assistance is needed.
Fixed Transom
-Typical View
Level Cylinders
-Typical View
Roll Cylinder
-Typical View
Proximity Sensors
-Typical View
Summary of Contents for STS12i Combo
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