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Hydraulics

Due to its immense power, hydraulics are used for operating various machinery, vehicles, aircraft, ships and equipment. The data and engineering revolving around hydraulics is so vast, its hard to comprehend.

1,856 Questions

What is the maximum horizontal distance allowed in suction line of a pump which is above the water level?

The maximum distance will be relative to the efficiency of the pump and the rated flow of the pump vs the size of the suction hose. The more efficient the pump, the more vacuum it can draw, and the larger the suction hose in relation to the flow rating of the pump the farther you can move the pump away from the water.

The manufacturer of the pump will have charts that will help you properly size and set up your pump for optimum performance.

What does mpa in hydraulics mean?

Mega. Pascal. Shows the pressure in the hydraulic system.

How is a three way hydraulic valve used?

The hydraulic three-way directional control valve is designed to operate an actuating unit in one direction. It permits either the load on the actuating unit or a spring to return the unit to its original position.

What are the 6 most common hydraulic pumps?

  • Gear Pumps
  • Vane Pumps
  • Axial Piston Pumps
  • Radial Piston Pumps
  • Gerotor Pumps
  • Screw Pumps

What to check if tractor hydraulics are full but bucket won't lift much weight?

  • Engine R.P.M. too slow - Increase engine R.P.M.
  • Excessive load - Material weight exceeds specified loader capacity. Reduce Load.
  • Relief valve setting below specifications. Check and reset relief valve setting as needed. (Relief valve should also be inspected for erosive wear which will reduce your pressure needed to lift the required weight)
  • Lift cylinder piston assembly leakage. Check cylinders for leakage. Repair as needed. (Referring to a leak on the piston seal)
  • Loader valve leaking internally. Replace loader valve and recheck operation.
  • Hydraulic pump defective. "Hydraulic Pump Capacity Inadequate". (If this is the original pump, it is probably worn out)

What will happen to a car if hydraulic oil is put in?

Standard hydraulic oil is a thin oil. Due to the high operating temperatures of the combustion engine, the oil breaks down much faster than standard motor oil. Using it can cause leaks on the motor seals. It will also cause your motor to wear faster than normal and the oil will be burned causing your car to discharge a thick white smoke from the exhaust.

What is Hydraulic lock on a lawn mower?

Hydro-lock happens when liquid instead of gas enters the cylinder. As the piston travels up - the liquid cannot compress like a gas would and the engine basically just stops. If this happens when trying to start the engine - usually it's not a big deal. Just need to remove the liquid and clean out the cylinder and crankcase. If it happens while the engine is running (Not as likely) It will do major damage to the engine. Usually more damage than the machine is worth.

Usually with a lawn mower, Hydro-lock occurs at start-up because fuel has leaked past the carb and into the crankcase and into the cylinders.

Did Mexicans create hydraulics?

Apparentely they did, probably to improve it...type it in, in google.

What year did the 350 go to hydraulic lifters?

99.9 % of all Chevy small blocks and big blocks came factory with HYDRAULIC flat tappet lifters. Starting in late 1995 Chevy went to a HYDRAULIC roller lifter.

Actually, the small blocks started coming through with roller cams with the introduction of the raised-rail heads around 86 or 87. Pretty sure the big blocks went roller when they switched to the non-adjustable valvetrain around late 80's, early 90's.

How do you repair a hydraulic engine hoist cylinder?

Hoist Cylinders are used by tractors, lifters, and cranes. They need special tools and skills to be repaired. You can not repair them at home. Take your hoist cylinder to a local mechanic.

What is a limited rotation hydraulic motor?

A limited rotation hydraulic motor provides a rotary output motion over a finite angle. This device produces a high instantaneous torque in either direction and requires only a small amount of space and simple mountings.

Rotary motors consist of a chamber or chambers containing the working fluid and a movable surface against which the fluid acts. The movable surface is connected to an output shaft to produce the output motion.

Figure 4.1 shows a direct acting vane-type actuator. In this type, fluid under pressure is directed to one side of the moving vane, causing it to rotate. This type of motor provides about 280° rotation.

Rotary actuators are available with working pressures up to 350 kg/cm3 (4978 psi). They are typically foot mounted, flanged or end mounted. Most designs provide cushioning devices. In a double vane design similar to the one depicted in the figure above, the maximum angle of rotation is reduced to about 100°. However in this case, the torque-carrying capacity is twice that obtained by a single vane design.

What license is needed for air over hydraulic brakes?

In the US, the type of brake system has no role in determining what class of license is required to operate a vehicle.

What is the difference between pneumatic elevator and hydraulic elevator?

Pneumatic elevators work on air pressure (similar to a bank's drive through suction tubes) and hydraulic elevators work on oil/water pressure.