Sakai SV400D-2, Shop Manual

Page: 63 / 218

4-008
PROPULSION HYDRAULIC SYSTEM
Model: PV05541-604
(1) Propulsion pump
(1-1) Port A1 (forward side) : SAE 1″
(1-2) Port B1 (reverse side) : SAE 1″
(1-3) Multifunction valve (port A)
(1-4) Multifunction valve (port B)
(1-5) High-pressure gauge port (port A) : 9/16-18UN-2B
(1-6) High-pressure gauge port (port B) : 9/16-18UN-2B
(1-7) Charge supply port : 7/6-14UNF-2B
(1-8) Charge pressure gauge port : 7/16-20UNF-2B
(1-9) Drain port : 1 1/16-12UNF-2B
(1-10) Charge relief valve
(1-11) Servo valve (for forward-reverse)
Specifications
Displacement : 51 cm³/rev (3.1 cu. in./rev) •
Pressure limit pressure setting : 41.8 MPa (6061 psi) •
Charge relief valve pressure setting : 2.5 MPa (363 psi) •
(2) Vibrator pump
(2-1) Port A2 (high-amplitude side) : 1 1/16-12UN-2B
(2-2) Port B2 (low-amplitude side) : 1 1/16-12NU-2B
(2-3) High-pressure relief valve (port A2 side)
(2-4) High-pressure relief valve (port B2 side)
(2-5) Charge pressure gauge port
: 1/2-20UNF-2B
(2-6) Charge pressure gauge port : 9/16-18UNF-2B
(2-7) Charge relief valve
(2-8) Drain port
: 1 5/16-12UN-2B
(2-9) Servo pressure gauge port : 9/16-18UNF-2B
(2-10) Amplitude solenoid valve
Specifications
Displacement : 35.0 cm³/rev (2.1 cu.in./rev) (when low amplitude)
: 28.0 cm³/rev (1.7 cu.in./rev) (when high amplitude)
•
High-pressure relief pressure setting : 25.0 MPa (3625 psi) •
Charge relief valve pressure setting : 2.5 MPa (363 psi) •
(3) Steering pump/charge pump
(3-1) Suction port : 1 5/16-12UN-2B
(3-2) Discharge port : 1 1/16-12UN-2B
Specifications
Displacement : 24.9 cm³/rev (1.5 cu.in./rev) •
Propulsion pump assembly weight : 95.0 kg (209 lbs.) •