30/10/2026
This little valve decides everything the machine does.
Ty Stewart got a hydraulic spool valve stripped right down on the bench. It looks like nothing, but it is the brain of the whole hydraulic system.
Inside there is an internal drilling that routes the oil, and a spool valve that slides across. Move a function and that spool shifts, blocks one port, opens another, and sends the oil exactly where it needs to go. The rest of the oil just sits there pressurised on standby, waiting until you need it.
Every lift, every movement, every function on the machine comes down to this bit doing its job. Get it wrong and nothing works right.
That is the stuff you learn pulling them apart, not out of a book. Same eye for detail on every heavy diesel and mobile crane repair job across Sydney ๐