How do you increase the speed of a cylinder?
Increase air PSI, if possible, at the inlet of the 4-way valve by increasing the adjustment on the system pressure regulator. This will cause a higher rate of air flow into the cylinder, increasing its speed. If an exhaust muffler is used, remove and discard. it or replace it with a larger size.
How do you adjust a main relief valve?
With a slotted screwdriver, turn the screw in the center of the knob clockwise, until flow can be heard escaping from the internal valve. Slowly turn the screw counterclockwise until the flow from the relief valve stops. Turn the screw an additional 1/8 to 1/4 turn counter-clockwise. Replace the silver cap in the knob.
What does a bad hydraulic pump sound like?
Banging or knocking can indicate that the hydraulic fluid is contaminated by air. The sounds could also be caused by lack of fluid. If its performance decreases, this could be a sign that your hydraulic pump is bad. Watch for slower operation or longer cycles.
How do you test a gear pump?
Now, you probably don’t have an infrared thermometer lying around, but there is an easy, low-tech way to test for an overheating gear pump: put your hand on it. Of course, you should not put your hand on the part while it is hot—instead, let the machine cool down, then restart it with you hand on the body of the pump.
How do you increase the speed of a hydraulic cylinder?
If the air problem is corrected, the system will speed up. Oil line cleared — If a restricted or blocked oil line becomes unrestricted/unblocked, the fluid flow will increase. Change in load — If the load on the cylinder is reduced, it may increase cylinder speed.
Why do you need a Kobelco excavator for your job?
Every job comes with its own set of challenges – from solid rock to tight spaces. That’s why you need an excavator ready to take on whatever you can throw at it. From our exclusive independent travel system down to the smallest details like heated seats, KOBELCO excavators are truly unlike any other in the business.
Why did Kobelco choose the sk135sr excavator?
We already have a 30 tonne SK330-10, and we chose to add the SK135SR’s because of their manoeuvrability in spaces with tight access. Working on housing subdivisions, we’re working in a lot of small spaces, and this model is easy to move around, particularly because of its offset boom.”
Who is the dealer for Kobelco earthmoving equipment?
“Kobelco Dealer, Gato Sales & Repairs, and in particular Marty Cook have been wonderful in all of our dealings to this point in time, often going above and beyond what could be reasonably expected, which for this day and age is not always the case.”
What causes bucket curl motion on an excavator?
We’ll say that the unusually slow cylinder function provides bucket curl motion on an excavator, and that the boom and stick cylinders are working fine. This sounds like a flow rate problem for the bucket curl cylinder sub-circuit.