Fluid Power Journal

Missing Rod Seal Back-up Ring

A casting company had a large heat treat furnace used in its process of making knuckles and suspension components for major automakers. These …

Figure It Out 1 Comment

Overheating of Press with Heated Platen

Click on image to enlarge A small heated platen press for an aerospace parts manufacturer would close and hold pressure for 1 to 3 hours based on the part …

Figure It Out 3 Comments

Steel Mill Accumulator

Years ago we built the complete hydraulic system for a continuous steel caster at a steel producer. The HPU had a 300-gallon reservoir with 6 pumps each driven …

Figure It Out 0 Comments

Gear Pump Load Sense

A hydraulic distributor hired a sales engineer for a new territory they were moving into. The first customer the engineer visited requested a quote on a …

Figure It Out 5 Comments

Aerated Oil on a Log Splitter

I loaned my log splitter to a friend whose tree fell after a storm. The tree was a blue spruce evergreen about 30-ft. tall. It surprised me that the tree’s …

Figure It Out 1 Comment

Elevator Stopping

A simple circuit was designed to lift a service elevator up from the basement to the third floor. The HPU had a pressure-compensated pump and a three-position …

Figure It Out 1 Comment

Oil Rig Top Drive Knocking Noise in the Pump

A drill rig operator was complaining about a knocking noise coming from his top-drive HPU. It controlled a hydraulic motor that drove a winch attached to the …

Figure It Out 0 Comments

Gold Mine Crusher with Erratic Pressure

A hydraulic power unit operating a rock-crushing machine had erratic pressure problems, causing the crusher to stall when the pressure seemed to relieve at a …

Figure It Out 5 Comments

Retract Coil Burn-Out

Workers at a private contractor that makes torpedoes for the U.S. Navy were having a problem with an assembly line directional valve coil that would burn out …

Figure It Out 8 Comments

Overheating on a Large Forging Press

A forging and stamping company had problems with overheating on a press. The company had several identical presses, and only one had been overheating for some …

Figure It Out 5 Comments

Sponsor

Sponsors

Get Our Enews!

Fluid Power Journal Resources