Either this is piped wrong or this operator has had WAY too much coffee.
That a little knowledge is a dangerous thing is both a cliche and a truism. But it applies so beautifully to the following video that we were alerted to by our buddies over at Northerntrack.
What starts out as a simple demonstration of a rotating grab quickly morphs into qhat looks like the most cumbersome drill bit on God’s green Earth.
“This is a wonderful example of how to destroy your shiny new selector grapple by failing to correctly set-up the rotation line pressures and flow rates. Rotation flow rate is very important on your hydraulic equipment, this grapple should be receiving around 10-12 litres of oil per minute at 130 Bar, not the full machine pump flows it obviously is,” says Northerntrack’s Andy Hair. “Perhaps if the driver puts his stick in the air and sets it going he may actually persuade this machine to take off helicopter style.”
