Why is my Doosan Excavators gearbox casing getting so hot?
If your Doosan Excavators gearbox casing becomes excessively hot, possibly with irregular noises during operation, it could be due to a low oil level. In this case, replace the oil and refill to the specified level. Alternatively, worn bearings or gears could be the cause. If so, repair or replace the gearbox.
How to fix oil leakage from my Doosan DX420LC?
If oil is leaking from the drive shaft of your Doosan Excavators, the oil seal may be damaged and needs replacement. If the leakage is from bolted connections or other assembled surfaces, the assembly compound (joint sealer) might be old and not sealing properly, or the bolts may not be tight, or the flange may be warped. In such cases, disassemble and check the mating surfaces, reapply Loctite, and torque the bolts to specifications.
What to do if my Doosan DX420LC aren't rotating?
If your Doosan Excavators aren't rotating, several issues could be at play. It could be that the swing brake isn't releasing; in this case, you should check the brake engagement and disengagement, and also check the release pressure. If the pressure at the swing motor inlet increases, the problem might stem from internal damage to the gearbox drive train, requiring replacement of broken gears or drive train assemblies. An overload could also be the cause, so try reducing the load weight. Alternatively, swing motor drive shaft damage or broken hydraulic pump or valve can cause this issue, so the swing motor should be replaced or hydraulic pump or valve should be repaired/replaced. If the pressure at the swing motor inlet shows no increase, but without irregular noises from the swing motor, ...
General| Brand | Doosan |
|---|---|
| Model | DX420LC |
| Category | Excavators |
| Language | English |
To Next Page
