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How to Repair a Hydraulic Line
How to Repair a Hydraulic Line. Hydraulic lines maintain the pressure in a hydraulic system. When a hydraulic line fails, the hydraulic system loses pressure. This creates a dangerous situation, especially if the leak involves a vehicle braking system. Repairing the damaged line when the leak is noticed will reduce the chances of air invading the...
Hydraulic lines maintain the pressure in a hydraulic system. When a hydraulic line fails, the hydraulic system loses pressure. This creates a dangerous situation, especially if the leak involves a vehicle braking system. Repairing the damaged line when the leak is noticed will reduce the chances of air invading the system, causing additional pressure loss. The two types of lines you will encounter with a hydraulic system are steel hard lines and flexible rubber hoses. Both types of lines are fixable, but each uses a different method of repair.
Things You'll Need
Hacksaw
Round file
37-degree flaring tool
Tape measure
Rubber hose
Utility knife
Sealing compound
Four hose clamps
Phillips screwdriver
Hard tubing
Repairing Hard Hydraulic Lines
Cut the damaged section from the hydraulic lines with a hacksaw.
Slide a round file around and inside both exposed ends of the hydraulic line with a round file. Flare both opens ends of the line with a 37-degree flaring tool.
Measure the distance between the open ends of the line with a tape measure. Add 6 inches to the measured length.
Cut a piece of rubber hose to the needed length with a utility knife.
Coat the inside of both ends of the rubber hose with sealing compound.
Slide four hose clamps onto the rubber hose.
Push both flared ends of the hydraulic line into the rubber hose. Center the hose over the removed damaged section of hydraulic line.
Slide two hose clamps to each end of the rubber hose.
Tighten the hose clamps with a Phillips screwdriver.
Repairing Flexible Rubber Lines
Cut the damaged section from the hydraulic line with a utility knife.
Measure the distance of the open area between the ends of the rubber line with a tape measure. Add 6 inches to the measured length.
Slide a round file around the cut ends of the hard tubing. Flare both ends of the pipe with a 37-degree flaring tool.
Coat the outside of the flared hard tubing with sealing compound.
Slide two pipe clamps onto each open end of the rubber line.
Push each flared end of the hard tubing into the open end of the rubber line.
Tighten the hose clamps with a Phillips screwdriver.
Tips & Warnings
Shut down the hydraulic system before attempting to repair a hydraulic leak.
The listed repair for hard hydraulic lines seals lines under 70 psi.
