FUNCTION
CONTROL VALVE
7
3
CONTROL VALVE
3J0AX00
Arm In regeneration
The speed at which the arm cylinder is extended (Arm In
operation speed) can be increased by directing part of
the oil returned from the arm cylinder to the supply side
again to increase the supply flow.
When the Arm In operation is performed, the pilot pres-
sure is directed to the port PiA, which causes the spool
(1) to be pushed up. This results in the oil from the pump
being supplied to the head side of the arm cylinder
through the port A.
Meanwhile, the return oil from the rod side of the arm cyl-
inder flows from the port B through the spool head and
the tank passage to be returned to the tank. At the same
time, it pushes the regenerative poppet (2) downward,
allowing it to be joined with the flow from the pump. This
combined flow is then supplied back to the head side of
the arm cylinder again via the port A.
Summary of Contents for TB215R
Page 1: ...CC8E005 WETB215R_A XI Seral No 215000003...
Page 3: ...SAFETY 1...
Page 13: ...SERVICE DATA 2...
Page 16: ...SERVICE DATA DIMENSIONAL DRAWING 3 2 DIMENSIONAL DRAWING 2A0AX001 Operating range 2A0AX02...
Page 53: ...SERVICE DATA WIRE HARNESS DIAGRAM 2 2 WIRE HARNESS DIAGRAM 2H0AX00 Body harness 03342 68000...
Page 54: ...SERVICE DATA WIRE HARNESS DIAGRAM 3 2 WIRE HARNESS DIAGRAM 2H0AX00...
Page 55: ...SERVICE DATA WIRE HARNESS DIAGRAM 4 2 WIRE HARNESS DIAGRAM 2H0AX00...
Page 56: ...SERVICE DATA WIRE HARNESS DIAGRAM 5 2 WIRE HARNESS DIAGRAM 2H0AX00...
Page 57: ...SERVICE DATA WIRE HARNESS DIAGRAM 6 2 WIRE HARNESS DIAGRAM 2H0AX00...
Page 58: ...FUNCTION 3...
Page 88: ...DISASSEMBLY AND ASSEMBLY 4...
Page 125: ...DISASSEMBLY AND ASSEMBLY OPERATING DEVICE 6 4 OPERATING DEVICE 4F0AX00 Hydraulic piping...
Page 230: ......
Page 232: ...TROUBLESHOOTING 5...
Page 287: ...Other 6...