DBC 130(F30i Series) DBC130ALE2A 1.5 2005 Hyd. Pressure Down Alarm 1) Description The pressure of the hydraulic power unit falls below the setting value of the hydraulic pressure switch, causing the hydraulic pressure switch to be tripped. 2) Cause of problem ① The hydraulic power unit has an error or its pressure falls below 20kg/ . ② The hydraulic pressure switch or any of its parts is defective. 3) Action ① Turn the pressure value of the hydraulic power unit clockwise to adjust the pressure to 50kg/ . ② The pressure switch of the hydraulic power unit has an error, or the wiring or related component parts are defective.
Check the hydraulic power unit, the pressure switch, and the wiring from the switch to the electric cabinet as well as the I/O board, and make repair or replacement if you find a problem. Main Hyd. Pump Pressure Switch 12 Part Name Part No. Symbol Spec. Maker Cable, Pressure Switch ECBLS0167F -WK11 BKS B19-1-05 BALUFF Switch Pressure R37983 -SP01 EDS810-060-0-024 HYDACS Device Connector Numbering Signal Address I/O Symbol (Pin) Hyd. Pressure Check X8.3 HDPS.M -SP31 Input Module Slot 7 XJ413(6) SP31 Hydraulic Motor Run Y2.0 HYDM.R -KA31A Output Module Slot 2 (02) KA31A