歪歪私人影院

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Service Hotline:
+86 391 8791388
Fax:
+86 391 8795166

One . Does not work
1 . Too high nitrogen gas pressure in back head-------- Adjust to the standard pressure.
2 . Oil temperature is too low,especially in the northern winter-------- Increase heat setting.
3 . Shut-off valve is not open-------- Open valve.
4 . Less hydraulic oil-------- Filling hydraulic oil.
5 . Pipeline pressure is too low------- Adjust the pressure.
6 . The pipeline connection error-------- Proper connection
7 . Problem with the control pipeline-------- Check the control pipeline.
8 . Valve stuck-------- Grinding .
9 . Piston stuck-------- Grinding .
10 . Rod&Rod pin stuck
11 . Too high nitrogen gas pressure--------  Adjust to the standard pressure
Two . Striking force is too low
1 . Working pressure is too low,inadequate flow pressure-------- Adjustment
2 . Too low nitrogen gas pressure in back head -------- Adjust the gas pressure
3 . High-pressure nitrogen gas pressure is insufficient--------  Added to standard pressure
4 . Valve or piston scuffing or grinding gap is too large-------- Grinding or replacement
5 . Poor oil return-------- Pipe inspection
Three . Blow frequency has decreased
1 . Too high nitrogen gas pressure in back head-------- Adjust to the standard pressure
2 . Reversing valve or piston galling-------- Grinding
3 . Poor oil return-------- Check the pipeline
4 . Too low system pressure-------- Adjust to normal pressure
5 . Frequency governor is not adjusted properly-------- Adjust it well
6 . Problem with the excavator hydraulic pump-------- Have hydraulic pump checked by authorized excavator dealer.