Sakai SW880-1, Shop Manual

Page: 75 / 428

4-018
HYDRAULIC SYSTEMS
(1) Body
(2) Port V1 [VF1, VR1] : 3/4-16UNF
(3) Vibrator solenoid valve (a) : G1
(3-1) Nut
(3-2) Nut
(4) Relief valve R2 : 7/8-14UNF
(4-1) Nut
(5) Flushing valve R3
(5-1) Bolt : M6×30
(6) Port M1 [FM1, RM1] : 3/4-16UNF
(7) Port T [VFT, VRT] : 3/4-16UNF
(8) Port M2 [FM2, RM2] : 3/4-16UNF
(9) Relief valve R1 : 7/8-14UNF
(9-1) Nut
(10) Vibrator solenoid valve (b) : G1
(10-1) Nut
(10-2) Nut
(11) Port V2 [VF2, VR2] : 3/4-16UNF
(12) Vibrator solenoid valve (c) : 7/8-14UNF
(12-1) Nut
(12-2) Nut
(13) Port G2 (High amplitude side) : 9/16-18UNF
(14) Port G1 (Low amplitude side) : 9/16-18UNF
(3-1) Nut : 3.5 N·m ( 2.6 lbf·ft )
(3-2) Nut : 90 N·m ( 66 lbf·ft )
(4) Relief valve R2 : 44 N·m ( 32 lbf·ft )
(4-1) Nut : 13.5 N·m ( 10 lbf·ft )
(5-1) Bolt M6×30 : 14 N·m ( 10 lbf·ft )
(9) Relief valve R1 : 44 N·m ( 32 lbf·ft )
(9-1) Nut : 13.5 N·m ( 10 lbf·ft )
(10-1) Nut : 3.5 N·m ( 2.6 lbf·ft )
(10-2) Nut : 90 N·m ( 66 lbf·ft )
(12-1) Nut : 3.5 N·m ( 2.6 lbf·ft )
(12-2) Nut : 50 N·m ( 37 lbf·ft )
Specifications
Rated pressure • : 35 MPa ( 5,075 psi ) (2, 6, 8, 11, 13, 14)
: 0.5 MPa ( 72 psi ) (7)
Rated flow • : 70 L/min ( 18.5 gal./min )
Relief valve setting pressure • : 34 MPa ( 4,930 psi ) (4, 9)
: 1.3 MPa ( 145 psi ) (5)
Flushing flow rate • : 9
± 1
L/min ( 2.4
± 0.3
gal. )
Weight • : 13 kg ( 28.7 lbs. )