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2-14
Flow reset function
刯
As the self pump delivery pressure P1 or the companion pump delivery pressure P2 decreases,
the compensating rod (623) is pushed back by the action of the springs (625 & 626) to rotate
lever 1 (612) around point E. Rotating of lever 1 causes the feedback lever (611) to rotate
around the fulcrum of point D and then the spool (652) to move to the left. As a result, port CL
opens a way to the tank port.
This causes the servo piston to move to the left and the pump's delivery rate to increase.
The movement of the servo piston is transmitted to the spool by the action of the feedback
mechanism to move it till the opening between the spool and sleeve is closed.
651
625
P1
B(E)
897
875
D
Servo piston
Large diameter
chamber
621
652
623
612
601
626
Small diameter
chamber
P1
P2
F
611
CL
14W92RG04
Summary of Contents for HX140L
Page 12: ...SECTION 1 GENERAL SECTION 1 GENERAL Group 1 Safety Hints 1 1 Group 2 Specifications 1 10...
Page 209: ...4 5 MEMORANDUM...
Page 694: ...8 68 125LCR8TM30 Turn casing 1 upside down and remove oil seal 3 using jig 29...
Page 734: ...8 108 Assemble plug 2 Plug NPT1 16 11 EA 17 21078TM68 21078TM69 21078TM70 21078TM71...
Page 756: ...8 130 Remove lock nut 22 and then boot 23 14 36078RL14 2507ARL10...