BOOM
3
5
BOOM
5G0AX001
Boom cylinder operation is slow or lacks force.
1. Is the speed of the boom cylinder within specs?
“2. Service data, Performance criteria”
2. Check the pilot valve.
“The boom cylinder does not move, 2. Check
the pilot valve”
3. Check the spool operation.
“The boom cylinder does not move, 3. Check
the spool operation”
4. Test by replacing the port relief valve.
“The boom cylinder does not move, 4. Test by
replacing the port relief valve”
1
Is the speed of the boom
cylinder within specs?
Within specs
Normal
Out-of-specs
2
Check the pilot valve.
Faulty
Repair or replace the pilot
valve.
Normal
3
Check the spool opera-
tion.
Faulty
Repair or replace the housing
block.
Normal
4
Test by replacing the port
relief valve.
Problem solved
The port relief valve is
faulty.
Repair or replace the port re-
lief valve.
No change
5
Check the boom cylinder.
Faulty
Repair or replace the boom
cylinder.
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...