Allied Systems H6H, Руководство по обслуживанию

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Section 1
1 - 21
Sequence of Operation - LINE-IN
Option Code B, Standard Winch
Pulling the control lever toward the operator commands
the tractor ripper valve
to meter oil flow to the winch,
through the counterbalance relief manifold (CBR) and to
motor port “A”. Oil flow rotates the winch motor and flows
back to the CBR manifold and back through the ripper
valve to the tractor hydraulic reservoir.
Simultaneously, the control lever sends proportionately
controlled pilot pressure to the RI port on the control
manifold. The control manifold directs the pilot signal to
the brake release valve and the motor port “X1”. At the set
pressure, the brake release valve sends full pilot pressure
to release the brake.
Pilot pressure at motor port “X1” is proportional to
control lever position. When the pressure at motor port
“X1” reaches a set level, the motor servo reduces motor
displacement to increase line speed. If working pressure
increases to PCOR (Pressure Compensator Override)
setting, the servo begins to increase motor displacement
to prevent stalling.
Releasing the spring centered control lever causes the
ripper valve to block flow to the winch and stop the motor.
The decaying RI signal closes the brake release valve
which in turn applies the brake.
Option Code B, Hi-Performance Winch
The Hi-Performance winch operates similarly to the
standard winch except oil flow and direction are controlled
at the winch. The RI control lever signal also commands
the directional manifold in the winch to send oil flow from
the tractor implement circuit to the winch motor. The brake
release and motor speed control (X1) are the same as
the standard winch.