Bleed air from a hydraulic floor jack by extending the piston, opening the pressure release valve, removing the oil fill port, replacing the port, and repeating until no more air escapes from the oil fill valve. Bleed hydraulic jacks regularly to keep the jack in proper working condition.
Insert the handle into the jack, and pump it until the piston fully extends. Do not proceed until you are certain it is at its maximum length.
The pressure release valve is located near the base of the jack. It is the valve you open to retract the piston. Insert a flathead screwdriver into the head of the valve, and turn counterclockwise one-half turn. The piston should automatically retract at this time.
The oil fill port is on the side of the jack, but similar in looks to check valves. Check the owner's manual to determine the correct screw to loosen. Do not loosen the check valves. Insert a flathead screwdriver into the slot, turn it counterclockwise, and remove the plug. You should hear air hissing as you remove the plug. Replace the plug.
Repeat the process of extending and retracting the piston and opening the port until you no longer hear air hissing out of the opening when you release it.
To bleed a radiator, fill the radiator and the coolant reservoir with a mixture of water and antifreeze, and run the engine with the radiator cap off until the air in the radiator escapes. Finally, refill the radiator and the coolant reservoir to the top, and replace the radiator cap.Full Answer >
To bleed a clutch, step on the clutch pedal, and undo the bleeder valve to allow the fluid to flow out until it slows. Close the valve, and release the pedal. Continue until all air bubbles exit the valve, refilling the reservoir as necessary.Full Answer >
To bleed a cooling system, release the drain plug from underneath the radiator, and flush the system with a radiator flush solution and water. Refill the radiator and reservoir tank with 50/50 pre-diluted coolant.Full Answer >
Zin dialkyl dithiophosphate is a type of anti-wear hydraulic fluid used when the ability to maintain lubrication is essential in a hydraulic system. DIN 51524 belongs to a class of detergent-containing hydraulic fluids, named HLP-D, which are useful for precipitating contaminants out of hydraulic components.Full Answer >