Sakai SV410-2, Shop Manual

Page: 71 / 270

4-014
HYDRAULIC SYSTEMS
2-2-5. Propulsion hydraulic motor (Rear)
SV505- -04003
2
4
4 3
6
7
8 9
6
2
9 3
7
8
1
5
9
Motor ciruit diagram
(1) Charge pressure relief valve (6) Servo pressure gauge port : 9/16-18UNF
(2) Pilot supply port [RMP] : 9/16-18UNF (7) Port B (Reverse) [RMB] : SAE 1”
(3) Drain port [RMD] : 1 1/16-12UN (8) Port A (Forward) [RMA] : SAE 1”
(4) Servo pressure gauge port : 9/16-18UNF (9) Drain port : 1 1/16-12UN
(5) Speed change solenoid valve
Motor specifications
Displacement (max.) • : 75 cm
3
/rev ( 4.58 cu.in./rev )
(min.) : 35 cm
3
/rev ( 2.14 cu.in./rev )
Charge relief valve pressure setting • : 2.67 MPa ( 387 psi ) (at 19 L/min)
Allowable motor case pressure • : 0.3 MPa ( 43.5 psi ) or less
Weight • : 55 kg ( 121 lbs. )