Hydraulic Pump Functional Parts; Functional Parts 1 - Kubota KX080-3 Workshop Manual

WSM KX080-3 Mechanism
d. Functional parts 1
(3) (4)
L-d
L
Ms
L+d
L
IV-M-15
(1)
(5)
(6) (7)
Function :
The force to tilt the tilting swash plate toward the
large flow side is produced by repositioning the
turning center of the tilting swash plate and generat-
ing the self-tilting moment. (The small-diameter pis-
ton adopted on KX121-3, KX161-3 is not used
here.) The tilt return spring is applied to assist at low
pressure.
(1) Large-diameter tilt control piston
(2) Tilting swash plate
(3) P3 pump horsepower shift pin
(4) PC horsepower control spool
(5) Spherical valve plate
(6) PC horsepower control spring
(7) Tilting moment assist spring
IV Hydraulic System
(2)