Do’s and don’t’s when using hydraulic systems


• Check that all connections are tight and leak free. It is especially important to check all coupler connections because, after the system has been pressurized, you will not be able to tighten the couplers by hand and using tools will damage the couplers.

• Remove air from system.

• Check oil level in pump reservoir. Fill only to level indicated on the pump. Over-filling the reservoir may cause the pump to malfunction. Fill the reservoir only when all cylinders have been retracted. If you add oil when the cylinder is extended, the reservoir will overflow or be pressurized when you retract the cylinder.

• When using an electric, air, or gas powered hydraulic pump, energize the pump only when the directional control valve is in the neutral position.

• In lifting systems, use lifting bases that spread out the load. This reduces the contact pressure between the cylinder and the floor and avoids sinking or punching of the floor. Most working floors cannot withstand high loads.

• Use shut-off valves for temporary load holding. Never hold a load on a coupler or directional control valve.

• Never get under a load.

• Use cribbing for load holding for long periods.

• Do not use hose to lift or pull equipment.