When a Caterpillar CAT323 small excavator acts, the distribution valve squeaks and cannot work. The forearm retracts slowly and the excavation is weak.
Failure analysis of Caterpillar CAT323 excavator with slow boom retraction and weak soil excavation:
1. Increase the pressure of the safety valve.
2. The multi-channel valve rod of the forearm is stuck.
3. If the boom doesn't fall fast, it's OK to be energetic. You should often butter it and change the hydraulic oil.
4. Often change the oil, change the filter screen, take down the oil return pipe and insert it into a bucket to drain the oil. There is dirt inside If it still rings, screw off the oil pipe of the ring piece, connect it to the empty bucket, push and pull it back and forth, and the dirt can come out.
5. The safety valve needle may get stuck.
Knowledge sharing:
When the Caterpillar CAT323 small excavator shovels things and lifts the boom, there is a lot of gray smoke. When it is added to the big throttle, there is a lot of black smoke. What is the reason? Black smoke is mainly caused by the problem of fuel injection pump and insufficient diesel combustion Because there is too much fuel injection and too little air at the high throttle, the combustion is incomplete, so the black smoke is large. Since the exhaust air intake is insufficient, it may be that the atomization of the fuel injection nozzle is poor, but there is also an insufficient cylinder compression ratio Improper valve clearance
The above is the reason analysis of "Caterpillar CAT323 excavator retracts the jib slowly and excavates soil powerlessly".
