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CHAPTER8.TROUBLESHOOTING
Problems Possiblecauses Solution
Tooweakstriking 1.Enginerotationspeedlow.
2.GaspressuretoolowinN2Chamber.
3.GaspressuretoolowinAccumulator.
4.Setwrongpressure,oroverflowvalvebroken.
5.Chiselbroken.
6.HydraulicOilnotenoughornotclean
1.Regulateit.
2.Checkandrecharge.
3.Checkandrecharge.
4.Checkandregulate.
5.Grindthedamagesofchiselorbushing.
6.Check,addorchangenewoil
Nostriking 1.Wrongpressureofoverflowvalve.
2.GaspressuretoohighinN2chamber.
3.Oilleakstochamber.
4.Cylinder,pistonorvalvesdamaged.
1.Regulatetoproperpressure.
2.Regulatetoproperpressure.
3.Replaceoilseal.
4.Repairsurfacebyabrasivepaper.
Unsteadystriking 1.GaspressuretoohighinN2chamber.
2.Pressurelowofoverflowvalve.
3.Chiselorbushdamaged.
4.Cylinder,pistonorvalvesdamaged.
1.Regulatetoproperpressure.
2.Regulatetoproperpressure.
3.Grindtorepairthedamagedpart.
4.Repairsurfacebyabrasivepaper.
Nitrogenleaks 1.Inletleaks.
2.Airvalveleaks.
3.N2chamberleaks.
4. Dismantle the oil‐return hose, if air bubble
existsintheoil,meansairsealdamaged.
1.ReplacebushingOsealring.
2.ReplacevalveOsealring.
3.Fastenthethroughbolts.
4.Replacetheseal.
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