2-73
Working of relief valve
Relief valve carries on two functions of followings.
It standardizes a pressure in case of driving a hydraulic motor ; bypasses and extra oil in a motor
inlet related to acceleration of an inertia to an outlet.
In case of an inertia stopped, it forces an equipment stopped, according to generating the
pressure of a brake on the projected side.
Room A is always connected with port A of a motor. If the pressure of port is increased, press
poppet A. And if it is higher than the setting pressure of a spring, the oil of an hydraulic flows from
room A to port B, because poppet A is detached from the contact surface of seat A.
Chamber A
Port A
Port B
Poppet A
21078TM06A
Poppet A
2)
(1)
(2)
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...