Remote Control Valve 4. Troubles and Countermeasures Trouble state
Primary cause
Countermeasure
Oil leaking to the outside
・ Damage to the surfaces of the O-ring ・ Repair each port or perform seals of each port section. replacement. ・ Damage to seal part ・ Replace the problem 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.
・ Disassemble, clean, and repair. (If repair is not possible, ・ Foreign matter trapped in piston (9) replace the assembly.) ・ Foreign matter trapped in pusher (11) ・ Disassemble, clean, repair or ・ Foreign matter trapped in pin (5) or replace. cam (7) ・ Disassemble, clean, repair or ・ Spring (13) permanent fatigue or replace. damage ・ Replace the spring (13).
CO US N F E ID O E F N TS TI M AL GL : F O OR BA T L H
E
IN
TE RN
AL
・ Replace the spring (14). ・ Disassemble, clean, and repair. (If repair is not possible, replace the assembly.)
The damper force is weak.
・ Wire (16) dropped out ・ Foreign matter trapped in sleeve (8) steel ball seating section
・ Disassemble, clean, repair or replace. ・ Disassemble, clean, and repair. (If repair is not possible, replace the assembly.)
The damper force is too strong.
・ Foreign matter trapped in orifice (9) section
・ Disassemble, clean, and repair.
234
ASM-17-25-002EN 27
