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MAKE-UP VALVE
The make-up valve has the following two functions.
One is to prevent cavitation produced by overrun of the piston motor in order to prevent the overrun
of the upper body. When the motor is turned by the inertia of the upper body to cause the pumping
action, which then causes the motor revolution to rise above the revolution equivalent to the amount
of oil supplied to the motor, the amount of oil equipvalent to the shortage is supplied to the motor
main circuit via the make-up valve from outside to prevent occurrence of vacuum inside the circuit.
The other is a function to add the amount of motor drain and valve leak via the make-up valve to
prevent vacuum inside the circuit to provide the braking capability in the normal circuit status when
a closed circuit is formed between the control valve and the motor as when braking.
4)
Make-up valve
R35Z72SM09
Содержание R35Z-7
Страница 11: ...SECTION 1 GENERAL Group 1 Safety Hints 1 1 Group 2 Specifications 1 9...
Страница 143: ...4 10 MEMORANDUM...
Страница 179: ...4 45 No of pin Receptacle connector Female Plug connector Male 14 1 7 6 14 MG610406 KET SDL CONNECTOR 13...
Страница 337: ...7 77 Take out ball bearing 3 from shaft 2 Tools required Ball bearing disassembly jig S 8 Completed 31 32 2 3 R35Z77TM32...
Страница 357: ...7 97 Remove lock nut 24 and then boot 27 16 RE18 140 7 RE19 140 7 25038RL02 4...
Страница 368: ...7 108 3 13 12 Install cover 3 to hub and tighten bolts 12 5 R35Z77TJ04...