Sakai SV410-2, Shop Manual

Page: 65 / 270

4-008
HYDRAULIC SYSTEMS
(1) Propulsion pump
(1-1) Multifunction valve (For port A1)
(1-2) Charge pressure gauge port : 7/16-20UNF
(1-3) Charge supply port [PPC] : 7/ 8-14UNF
(1-4) Multifunction valve (For port B1)
(1-5) Port B1 (Forward) [PPB] : SAE 1’’
(1-6) Drain port [PD1] : 1 1/16-12UN
(1-7) Servo pressure gauge port [SGA] : 7/16-20UNF
(1-8) Servo pressure gauge port [SGB] : 7/16-20UNF
(1-9) High pressure gauge port (For port B1) : 9/16-18UNF
(1-10) Charge relief valve
(1-11) High pressure gauge port (For port A1) : 9/16-18UNF
(1-12) Drain port [PD2] : 1 1/16-12UN
(1-13) Port A1 (Reverse) [PPA] : SAE 1’’
(1-14) Drain port : 1 1/16-12UN
Specifications
Displacement • : 51 cm
3
/rev ( 3.1 cu.in./rev )
High pressure relief valve pressure setting • : 41.8 MPa ( 6,061 psi )
Charge relief valve pressure setting • : 2.5 MPa ( 363 psi )
(2) Vibrator pump
(2-1) High pressure relief valve (For port A2)
(2-2) Drain port [VD1] : 1 5/16-12UN
(2-3) Servo pressure gauge port : 9/16-18UNF
(2-4) Charge pressure gauge port : 9/16-18UNF
(2-5) High pressure relief valve (For port B2)
(2-6) Solenoid valve b (Low amplitude)
(2-7) Solenoid valve a (High amplitude)
(2-8) Port B2 [VPB] : 1 1/16-12UN
(2-9) Drain port
[VD2]
: 1 5/16-12UN
(2-10) Servo pressure gauge port : 9/16-18UNF
(2-11) Port A2 [VPA] : 1 1/16-12UN
(2-12) Charge relief valve
(2-13) Charge pressure gauge port : 1/ 2-20UNF
Specifications
Displacement • (Low amplitude) : 35.0 cm
3
/rev ( 2.1 cu.in./rev )
(High amplitude) : 28.0 cm
3
/rev ( 1.7 cu.in./rev )
High pressure relief valve pressure setting • : 25.0 MPa ( 3,625 psi )
Charge relief valve pressure setting • : 2.5 MPa ( 363 psi )
(3) Steering pump
(3-1) Discharge port [SCD] : 1 1/16-12UN
(3-2) Suction port [SCS] : 1 5/16-12UN
Specifications
Displacement • : 24.9 cm
3
/rev ( 1.5 cu.in./rev )
Allowable pump case pressure • : 0.3 MPa ( 43.5 psi ) or less
Pump assembly weight • : 95 kg ( 209 lbs. )