Sakai SV540 Series, Shop Manual

Page: 69 / 306

4-008
HYDRAULIC SYSTEMS
(1) Propulsion pump
(1-1) Servo pressure gauge port : 9/16-18UNF
(1-2) Drain port [PD1] : 1 1/16-12UN
(1-3) Servo pressure gauge port : 9/16-18UNF
(1-4) Port B1 (Reverse) [PPB] : SAE 1”
(1-5) High pressure gauge port (For Port B1) : 9/16-18UNF
(1-6) Charge relief valve
(1-7) High pressure gauge port (For Port A1) : 9/16-18UNF
(1-8) Port A1 (Forward) [PPA] : SAE 1”
(1-9) Drain port [PD2] : 1 1/16-12UN
(1-10) Multifunction valve (Port B1)
(1-11) Multifunction valve (Port A1)
(1-12) Charge supply port [PPC] : 7/ 8-14UNF
Specifications
Displacement • : 75 cm
3
/rev ( 4.58 cu.in./rev )
High pressure relief valve pressure setting • : 42 MPa ( 6,090 psi ) (at 1,800 min
-1
)
Charge relief valve pressure setting • : 2.4 MPa ( 348 psi ) (at 40 L/min)
(2) Vibrator pump
(2-1) Port B2 (High amplitude) [VPB] : 1 1/16-12UN
(2-2) High pressure gauge port (For Port B2) : 9/16-18UNF
(2-3) Control pressure gauge port : 9/16-18UNF
(2-4) Servo pressure gauge port : 9/16-18UNF
(2-5) Drain port [VD1] : 1 5/16-12UN
(2-6) High pressure gauge port (For Port A2) : 9/16-18UNF
(2-7) Port A2 (Low amplitude) [VPA] : 1 1/16-12UN
(2-8) Charge relief valve
(2-9) High pressure check relief valve port (For Port A2)
(2-10) Charge supply port [VPC] : 3/ 4-16UNF
(2-11) Drain port [VD2] : 1 5/16-12UN
(2-12) Servo pressure gauge port : 9/16-18UNF
(2-13) Charge pressure gauge port : 9/16-18UNF
(2-14) Control pressure gauge port : 9/16-18UNF
(2-15) Solenoid valve 1 (Low amplitude)
(2-16) Solenoid valve 2 (High amplitude)
(2-17) High pressure check relief valve port (For Port B2)
Specifications
Displacement (Low amplitude) • : 51.0 cm
3
/rev ( 3.1 cu.in./rev )
(High amplitude) : 44.9 cm
3
/rev ( 2.7 cu.in./rev )
High pressure relief valve pressure setting • : 28.0 MPa ( 4,060 psi ) (at 3.8 to 5.6 L/min)
Charge relief valve pressure setting • : 2.4 MPa ( 348 psi ) (at 18.9 L/min)
Allowable pump case pressure • : 0.3 MPa ( 43.5 psi ) or less
Pump assembly weight • : 100 kg ( 220 lbs. )