6-12
The oil pressure in the high pressure port
HP has reached the setting of the pilot
poppet spring force and unseats the pilot
poppet E and oil flows around the poppet
through the cross drilled holes and to the
low pressure area LP.
MAIN RELIEF VALVE
Pressure setting
A good pressure gauge must be installed in
the line which is in communication with the
work port relief. A load must be applied in a
manner to reach the set pressure of the relief
unit.
Procedure
Loosen lock nut.
Set adjusting nut to desired pressure
setting.
If desired pressure setting cannot be
achieved, add or remove shims as required.
Tighten lock nut.
Retest in similar manner as above.
4)
(1)
①
②
③
④
⑤
D353HS99
Function
As work port relief
The relief valve is in communication
between the high pressure port HP and
low pressure LP. Oil is admitted through
the hole in poppet C and because of the
differential area between diameters A
and B relief valve poppet D and check
valve poppet K are tightly seated as
shown.
(2)
①
①
D353HS18
D353HS19
·
Main relife valve : 181 bar
·
Secondary main relife valve : 147 bar
(For 3, 4 spool only)
Содержание 60L-7A
Страница 11: ...SECTION 1 GENERAL Group 1 Safety hints 1 1 Group 2 Specifications 1 5 Group 3 Periodic replacement 1 13 ...
Страница 25: ...SECTION 2 REMOVAL INSTALLATION OF UNIT Group 1 Structure 2 1 Group 2 Removal and installation of unit 2 2 ...
Страница 32: ...2 7 Mast Refer to section on mast Page 2 2 1 2 POWER TRAIN ASSEMBLY REMOVAL 1 D503RE04 ...
Страница 69: ...3 28 50DFTM13 Remove bearing 67 and gear 68 30 68 67 ...
Страница 71: ...3 30 Remove oil seal 72 from the transmission case 34 50DFTM17 72 ...
Страница 98: ...3 57 Assemble wheel hub and tighten plug 14 Tightening torque 35 60kgf m 253 2 434 0lbf ft 12 50D7EDA61 ...
Страница 147: ...5 31 2 PRIORITY VALVE STRUCTURE 50DS7ESE08 1 Body 2 Spool 3 Spring plug 4 End plug 5 Spring 6 O ring 7 Orifice 1 ...
Страница 188: ...7 3 10MM RING ELECTRIC CIRCUIT FOR LPG FUE KIT 35L7AEL07 ...
Страница 189: ...7 4 MEMORANDUM ...