Guangxi XCMG Excavators service center hotline:! 157-2316-7687 professional Guangxi XCMG excavator repair site to provide rapid on-site maintenance of integrity of our service, reasonable fees, warranty period 312d Carter digging machine would operate without action Cause Analysis 2013 -03-04 09:10:58 Source: Carter 312d excavator digging machine maintenance-free operation of the whole operation Cause Analysis phenomenon: 6500 hours Caterpillar 312D type machine before doing pilot handle and excavator boom, arm, bucket, dig machine would have no action 312d Carter digging machine machine operation no action Analysis: Guangxi XCMG Excavators maintenance is recommended to operate simultaneously turning and walking, turning and walking excavator see there is no action, if there is no action, it may be Safety deposit rod problems caused Guangxi XCMG excavator digging machine machine maintenance operations Carter 312d No action repair method: a safety lever valve repair, connect the power supply if it does not work, you may be stuck valve coil burned out or need replace the solenoid valve. 2 solenoid valve is working properly, it may be damaged or pilot relief valve gear pump malfunction, resulting in pilot circuit pressure can not be established, the pilot pressure to be measured to confirm whether there is damage to the main pump needs to be replaced. Guangxi XCMG mining When Carter 312d outside digging machine maintenance arm, the arm, bucket cylinder recycling machine pendulum weakness, no action Cause: main relief pressure is too low, that is, by a small load will be opened, causing hydraulic oil directly back to the tank, the working device can not play its due performance of Guangxi XCMG Excavators service center hotline: 157-2316-7687 professional Guangxi XCMG excavator repair site to provide rapid on-site maintenance of integrity of our service, reasonable fees, warranty.! Carter excavator 312d of the whole operation without action Cause Analysis 2013-03-04 09:10:58 Source: Carter 312d excavator digging machine maintenance-free operation of the whole operation Cause Analysis phenomenon: 6500 hours Caterpillar 312D type machine before doing pilot handle and digging machines boom, arm, bucket, digging machine would have no action 312d Carter digging machine machine operation no action Analysis: Guangxi XCMG Excavators maintenance is recommended to simultaneously turn and walk, turn and look at digging machine Walking there is no action, if there is no action, it may pose a security deposit in Guangxi rod XCMG excavator digging machine machine maintenance operations Carter 312d No action repair method: a safety lever valve repair, connect the power supply if it does not work probably coil burned or stuck valve, solenoid valve needs to be replaced. 2 solenoid valve is working properly, the gear pump may be damaged or faulty pilot relief valve, causing the pilot pressure circuit can not be established, the pilot pressure to be measured, confirm whether the main pump needs to be replaced when there is damage to the outer Carter 312d digging machine arm, the arm, bucket cylinder recycling machine placed Guangxi XCMG excavator maintenance weakness, no action Cause: Possible main relief pressure is too low, that is, by small load will be opened, leading directly back to the hydraulic oil tank, working device can not play its due performance of Guangxi XCMG excavator repair service is recommended: The main pressure relief valve is adjusted to the operating instructions specified value US Reiter. Carter excavator maintenance of the master, "Carter 312d digging machine machine operation no action cause analysis" Further reading: 312d outside Carter digging machine arm, the arm, shaking cylinder recycling machine slow pendulum action Analysis: slow due to a job offer caused by insufficient flow device, the pilot pressure is too small, the spool can not be fully open; Mode Select whether or simple micro-operations, reducing the engine speed, reducing the main pump flow; the flow control valve is open or open state being stuck troubleshooting: a pilot pressure is adjusted to the value of the operating manual required; 2 to select the correct operating mode, you can not select the mode, or pilot lights have been switched, but when the engine speed, flow rate unchanged, the investigation controller failure. ; 3 flow solenoid valve is in working condition 312d Carter digging machine machine operating fault Toll Free No Action, 13635478070 Master Li Guangxi XCMG Excavators Contact service center 24-hour hotline: 157-2316-7687 Contact: Liu. Jiulongpo Jiang Zhongguo · Chongqing White City Station Maintenance recommendations: the main pressure relief valve is adjusted to the operating instructions specified value US Reiter Carter excavator maintenance master "Carter 312d digging machine machine operation no action cause analysis" extension. Read: 312d outside Carter digging machine arm, the arm, shaking cylinder recycling machine slow pendulum action Analysis: Slow traffic due to the lack of a working device caused by pilot pressure is too small, the spool can not be fully opened; mode choose whether or simple micro-operations, reducing the engine speed, reducing the main pump flow; the flow control valve is stuck open or opened by an impaired state examination: a pilot pressure is adjusted to the value of the operating manual required; 2. Select the correct operating mode, you can not select the mode, or pilot lights have been switched, but when the engine speed, flow rate unchanged, the investigation controller failure; 3 flow solenoid valve is in working condition 312d Carter digging machine machine operation no action failure. Toll Free, 13635478070 Master Li Guangxi XCMG Excavators Contact service center 24-hour hotline: 157-2316-7687 Contact: Liu Jiang, China Chongqing Jiulongpo White City Station