Sakai TW504 - Page 97

4-012
HYDRAULIC SYSTEMS
(1) Port B (Reverse) [PB] : 1 1/16-12UN
(2) High pressure gauge port (For port B) : 9/16-18UNF
(3) Servo pressure gauge port : 9/16-18UNF
(4) Drain port [PD] : 1 1/16-12UN
(5) High pressure gauge port (For port A) : 9/16-18UNF
(6) Port A (Forward) [PA] : 1 1/16-12UN
(7) Parking brake release pressure port [P4] : 9/16-18UNF
(8) Speed change pressure port [P5] : 9/16-18UNF
(9) Speed change solenoid valve
(10) Parking brake solenoid valve
(11) Servo pressure gauge port : 9/16-18UNF
(12) Charge pressure suction port [PC] : 3/ 4-16UNF
(13) High pressure relief valve (For port B)
(14) High pressure relief valve (For port A)
(15) Charge relief valve
(16) Drain port : 1 1/16-12UN
Specications
Displacement• : 28.0 cm
3
/rev ( 1.7 cu.in./rev )
High pressure relief valve pressure setting • : 34.5 MPa ( 5,003 psi )
Charge relief valve pressure setting • : 1.9 MPa ( 276 psi )
Allowable pump case pressure• : 0.25 MPa ( 36.3 psi ) or less
Pump weight • : 34.5 kg ( 76.1 lbs. )