Vibratory System - OFF
Vibratory System Circuit Diagram - OFF.
(1) Vibratory motor. (2) Vibratory flushing relief valve. (3) Oil line from propel cooling valve. (4) Closed circuit loop line. (5) Check valve. (6) Servo
piston assembly. (7) Charge relief valve. (8) Oil line from hydraulic oil filter. (9) Vibratory pump. (10) Vibratory flushing valve. (11) Closed circuit loop
line. (12) Check valve. (13) Hydraulic oil tank. (14) Vibratory amplitude valve.
Return oil from the steering system supplies the charge oil
(make-up oil) for the vibratory system. Charge oil is supplied
to the hydraulic oil filter before entering the vibratory system
through oil line (8).
When the vibratory control switch on top of the propel control
lever or the vibratory selection switch is placed in the OFF
position, electric circuit to vibratory control solenoid valve (14)
is isolated. The vibratory amplitude valve is held in center
position (null position) by the two centering springs. The
vibratory amplitude valve blocks charge oil from flowing
through servo piston assembly (6), and the vibratory pump
swashplate is at zero angle (neutral position). In this position
there is no flow of oil from vibratory pump (9) to vibratory motor