Pneumatic Troubleshooting Mod 3-Cylinders

Aeration of the hydraulic fluid in an air-over-oil system could be the result of a _____________.

• Cylinder’s leaking piston seal

• Partially locked tank inlet

• Closed flow control valve

• Worn tape seal

A cylinder that has fast speed may be the result of ____________.

• Air leaking internally

• A partial blockage of its inlet port

• Decrease in load

• Contamination in lines

A(n) _______________ must be used to connect the air-over-oil tanks during a balancing operation

• Bypass line

• Site glass

• Exhaust restriction

• Flow control valve

Cylinder ____________ is a condition where a vertically mounted cylinder cannot hold position.

• Drift

• Droop

• Drop

• Sag

Rodless cylinders are used to transport loads _____________________.

• When high pressures are required

• In corrosive environments

• Where space is limited

• When cylinder drift is undesirable

An air-over-oil system uses a ________________ in the hydraulic line to give the operator fine control over the actuator’s speed.

• Flow control valve

• Regulator

• Pilot-operated check valve

• Lubricator

An air-over-oil tank uses ____________ to eliminate disturbance of the hydraulic fluid

• A shell and tube

• A diaphragm

• Baffles

• An orifice

Cylinder drift can be caused by ____________.

• Leakage

• Pilot-operated check valves

• Rod binding

• Low pressure

Erratic actuator movement in an air-over-oil system is likely the result of ____________

• Low oil viscosity

• High oil Viscosity

• Air mixed with the oil

• Low air pressure

The ______________ provide(s) support and alignment to the carrier of a rod-less cylinder

• Barrel

• Piston

• Carrier

• Guide rods