KCP 113 - Page 67

KCP Heavy Industries Co., Ltd. Troubleshooting
6-17
Possible cause
Check
point
Diagnosis
Solution
Maintenance
level
※ Maintenance level : A(Repair at KCP service workshop), B(KCP engineer dispatch or phone call)
Acc bladder
failure
(Refer to Page
6-31. Pic#7)
Acc
pressure
gauge
• Acc pressure is under
100BAR.
• Accumulation is late
during max RPM.
• Reduce outvolume.
(check if reduced, and
problems are still
discovered).
• Replace the acc
Tank.
B
※ E.C.O Switch and usage depends on main panel models.
Inside of main panel
Outside of main panel
• Turn ECO switch to ON as above pic or toggle s/w to up.
• E.C.O can be accumulated pressure of S-v/v switching during emergency situation
because of accumulator pump broken. This switch is only for emergency when accumulator
pump is broken.
• When accumulator pump is broken, lots of other metal articles such as pump’s plate or
shoe could be found. So it must be replaced as soon as possible.
 Cautions during accumulator pump replacement
Fully drain out all of concrete by reverse pumping, turn OFF the ECO switch, fold the
booms completely and replace the accumulator pump.