1
5
auxiliary hyDraulicS (1ST)
TroubleshooTing
5g6AX001
AUXILIARy hyDRAULICS (1ST)
1
check the operation of
actuators other than the
auxiliary lines
normal
2
check the spool opera-
tion
Faulty
Repair or replace the housing
block
normal
3
Check the linkage
Faulty
Adjust, repair or replace
normal
4
check the supply pres-
sure of the control valve
Faulty
Repair or replace the housing
block
1. check the operation of actuators other than the
auxiliary lines.
Determine if only the auxiliary lines is faulty by checking
the operation of actuators for the devices listed in the
table on the right. If one of them is faulty, check the
main relief valve and the hydraulic pump (main).
“5. Troubleshooting, Overall machine, All systems
working, but insufficient force”
2. check the spool operation.
“5. Troubleshooting, Traveling, Right or left travel is
impossible, 2. check the spool operation”
3. check the linkage.
“5. Troubleshooting, Traveling, Right or left travel is
impossible, 3. Check the linkage”
4. check the supply pressure of the control valve.
Disconnect one of the hoses connected to the control
valve housing block (1st auxiliary lines). Fit the pressure
gauge to the hose just disconnected. Operate the lever
(1st auxiliary lines) and check the supply pressure of
the valve.
• If the value indicated is not as below, the housing
block is faulty.
Supply pressure:
21
.0 MPa (
3046
PSI)
auxiliary hyDraulicS (1ST)
Prescribed pressure is not supplied to the auxiliary lines.
lever to operate
Device to check
relief valve
Pump
Swing
r2
P2
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...