Zoomlion QY30V - PTO Troubleshooting

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Engine control isEngine control is
invalid.invalid.
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PTO PTO signal signal switch switch damaged. damaged. ReplaceReplace
Engine Engine ECU ECU defects. defects. Rectify Rectify or or replacereplace
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D i a g n o s t i c s
D i a g n o s t i c s
9.2.8 PTO9.2.8 PTO
Problem Causes RemedyProblem Causes Remedy
Oil leakageOil leakage
Oil Oil seal seal or or paper paper gasket gasket breakage. breakage. ReplaceReplace
Paper gasket is not sealed or just one face isPaper gasket is not sealed or just one face is
sealed with sealant.sealed with sealant.
Seal the two facesSeal the two faces
with sealant.with sealant.
The PTO side cover is not tightly contactedThe PTO side cover is not tightly contacted
with end-face of the housing of transmissionwith end-face of the housing of transmission
rear cover.rear cover.
Remove the sideRemove the side
cover of PTO andcover of PTO and
rectify.rectify.
PTO does notPTO does not
work.work.
Air leakage Air leakage occurs in occurs in end end cover cover and and pipe pipe lineline
of PTO solenoid valve.of PTO solenoid valve.
Rectify or replaceRectify or replace
Spool Spool of of PTO PTO solenoid solenoid valve valve blocked. blocked. Rectify Rectify or or replacereplace
Coil Coil of of PTO PTO solenoid solenoid valve valve damaged. damaged. Rectify Rectify or or replacereplace
PTO PTO control control cylinder cylinder invalid. invalid. Rectify Rectify or or replacereplace
Intermediate Intermediate shaft shaft of of transmission transmission damaged. damaged. Check Check and and replacereplace
Abnormal noiseAbnormal noise
Gear Gear is is pitting pitting corrosion corrosion seriously seriously or or broken. broken. ReplaceReplace
Bearing is pitting corrosion seriously or needleBearing is pitting corrosion seriously or needle
roller or ball broken.roller or ball broken.
Replace bearingReplace bearing
Bolts Bolts in in hollow hollow shaft shaft end end loose. loose. Tighten Tighten or or replacereplace