4. Troubles and Countermeasures

4.Troubles and Countermeasures

Trouble state

Oil leaking to the outside Primary cause ・ Damage to the surfaces of the O-ring seals of each port section. ・ Damage to seal part

Secondary pressure does not rise smoothly. Or is out of the standard. ・ Spring (14) permanent fatigue or damage ・ Foreign matter trapped in spool (10)

The lever movement is sluggish. Or does not return to neutral. ・ Foreign matter trapped in piston (9) ・ Foreign matter trapped in pusher (11) ・ Foreign matter trapped in pin (5) or cam (7) ・ Spring (13) permanent fatigue or damage

The damper force is weak. ・ Wire (16) dropped out ・ Foreign matter trapped in sleeve (8) steel ball seating section

The damper force is too strong. ・ Foreign matter trapped in orifice (9) section Countermeasure

・ Repair each port or perform replacement. ・ Replace the problem seal part. ・ Replace the spring (14). ・ Disassemble, clean, and repair. (If repair is not possible, replace the assembly.) ・ Disassemble, clean, and repair. (If repair is not possible, replace the assembly.) ・ Disassemble, clean, repair or replace. ・ Disassemble, clean, repair or replace. ・ Replace the spring (13). ・ Disassemble, clean, repair or replace. ・ Disassemble, clean, and repair. (If repair is not possible, replace the assembly.)

・ Disassemble, clean, and repair.