TROUBLESHOOTING
PILOT VALVE
1
5
PILOT VALVE
5K2AQ00
PILOT VALVE
“4. Disassembly and assembly, Pilot valve”
Symptoms
Major causes
Remedies
The secondary pressure
is too low
• Primary pressure is insufficient.
• Keep the primary pressure.
• The spring is broken or worn out.
• Replace
• The clearance between the spool and
the casing is too large.
• Replace the spool and the casing assem-
bly.
• Too much play in the handle.
• Disassemble and assemble or replace.
The secondary pressure
is unstable
• The sliding part is not smooth.
• Repair or replace.
• The tank line pressure fluctuates.
• Remove the faulty part(s) in the tank line.
• Air is present in the piping.
• Bleed air by operating the valve several
times.
The secondary pressure
is high
• Pressure in the tank line is high.
• Remove the faulty part(s) in the tank line.
• The sliding part is not smooth.
• Repair or replace.
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...