What causes an excavator shock absorber to fail?

What causes an excavator shock absorber to fail?

When dealing with the thermal failure of an excavator hydraulic system, it was found that the oil level in the shock absorber greatly exceeded the oil level screw (usually about 1.5L), and these excess fluids were accompanied.

How is the engine of a Komatsu excavate hydraulic pump connected?

For example, the engine of the Komatsu PC200-7 excavate hydraulic pump is connected by a damping damper inside the shock absorber.

What causes a PC200 excavator to heat up faster?

For example, the main pump of the PC200 excavator is a plunger pump. If the matching plate between the pump and the cylinder, the sliding shoe, the swash plate and the plunger cylinder wear a large amount (a basic type of component failure) is large, which often results in The hydraulic pump heats up faster.

What causes poor heat dissipation in an excavator?

The main forms of poor heat dissipation performance of the radiator are: deformation or blockage of the external heat dissipating fins, poor cooling effect; insufficient cooling fan volume; hydraulic oil (Hydraulic) radiator internal pipe blockage. Hitachi excavator repair is the market leader in large hydraulic excavators.

Why is my cat 320C excavator engine stalling?

I have been having a lot of trouble with a CAT 320C Excavator (S/N BDE00683) with 16 000 hours on the clock, which my boss just bought. The excavator is well serviced, engine looks and works well, but when under load, the engine revs go down very fast, it stalls and there is no hydraulic power. I can excavate only with the tip of the bucket.

Why does my excavator stall when under load?

The excavator is well serviced, engine looks and works well, but when under load, the engine revs go down very fast, it stalls and there is no hydraulic power. I can excavate only with the tip of the bucket. If I try deeper, it stalls. It also happens with every other movement.

Can a PRV problem affect a cat excavator?

A PRV problem would affect every function. Every Cat excavator I’ve seen requires pressure to move the travel motors to low displacement/rabbit mode. The smallest line running through the swivel will be the one to the travel motor speed actuators. You could try to plug it and see if anything changes.

How much hydraulic power does a cat 320C have?

I followed the instructions from CAT and I should have measured 0,2 to 0,75 Amperes at the Solenoid input and 4,8bar (70 psi) to 34,5 bar (500 psi) pressure at the tap. However, for the electricity I get 0,14 to 0,5 Amps and for the pressure I get 4bar (58 psi) to 22 bar (319 psi).

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.

Why does my excavator keep bogging down?

Could be the swash /valve plate sticking from contamination or a stuck load piston.If it is not fuel than it is probably that.I am not a komatsu guy but if the machine has a lot of hours on it and the Hyd oil is old then. I would look there.pull the Hyd filter and cut it open.

How does heat load and internal leakage affect hydraulics?

The influence of internal leakage on heat load means that slow operation and high fluid temperature often appear together. This can be a vicious circle. When fluid temperature increases, viscosity decreases. When viscosity decreases, internal leakage increases.

Can a clogged intake line cause a hydraulic failure?

In extreme cases, cavitation can cause mechanical failure of system components. While cavitation can occur just about anywhere within a hydraulic circuit, it commonly occurs at the pump. A clogged inlet strainer or restricted intake line will cause the fluid in the intake line to vaporize.