New Holland PL6011, Service Manual

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Hydraulic systems - Hydraulic systems
A variable displacement pump (A) is shown by an arrow
drawn through the pump symbol at a 45 degree angle. A
variable displacement, pressure compensated pump
(B)
is shown by a small box with an arrow, added to the side
of the pump symbol.
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If the pump is controlled by a lever (A) or a pedal (B) , the
appropriate symbol is added to the side of the pump.
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A drive shaft is shown as two short parallel lines extending
from the side of the pump. A curved arrow, if present, on
the drive shaft indicates the direction of rotation.
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Motors
Motor symbols are circles with solid black arrows, which
point in the opposite direction of a pump’s arrow, to show
the motor as a receiver of fluid. One arrow is used for
non-reversible motors
(A) ; and two arrows are used for
reversible motors (B) .
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A simple schematic diagram is shown of a hydraulic motor
(A) connected to a hydraulic pump (B) .
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