Why is my Komatsu excavator swing not working?

Why is my Komatsu excavator swing not working?

It got well. This year, after about 100 hrs of use, the swing again won’t work. The swing motor is obviously good, because the engine loads down when you move the lever (swing is side movement of left joystick) I reached up under the machine, and the replaced solenoid is warm, and won’t slide off the shank, when the engine is running.

How can a fault be eliminated in a Komatsu?

During the rotation of the damper damper, a large amount of heat (Heat) is generated and transmitted to the hydraulic pump, causing the system to heat up. At this point, the fault can be eliminated by draining the shock absorber fluid to the standard oil level.

What should I do if my Komatsu heat sink is not working?

In addition to the intuitive judgment of the former two, it is also known from the temperature difference between the upper and lower tubes of the radiator that the heat sink should be cleaned and the fan belt should be tightened.

What causes a Komatsu water pump to heat up?

If the end face of the pump gear wears a lot or the tooth gap is large, the internal leakage increases, which will cause the pump to heat up and affect the normal operation of the main pump. The overflow valve pressure is too high or too low, which will cause the hydraulic system to heat up.

Is the PC 120-3 excavator swing still working?

Komatsu pc 120-3 excavator swing… I’m working for a guy who bought an old worn out PC120, to do 2 projects. It’s really tired& worn, but it’s stayed together pretty well. Last year, the swing quit working, and i installed a new solenoid (from China) on the valve block under the machine. It got well.

How are hydraulics used in a Komatsu excavator?

The hydraulic pump is used as the power source for the hydraulic system, and its operating conditions affect the degree of system fever. Komatsu excavators repair the electrical parts and main components of engines, hydraulics, height-controlled engines and hydraulics, all developed and produced by Komatsu itself.