When the manual reversing valve is operated to make it work in the left position, the bucket hydraulic cylinder piston rod retracts, and the rocker arm stick drives the bucket forward for unloading. The oil circuit is:? Inlet circuit: hydraulic pump → left position of manual reversing valve → bucket hydraulic cylinder with a rod cavity. ?Oil return line: bucket hydraulic cylinder rodless cavity → manual reversing the left position → fine filter → oil tank. ?

When the bucket is stowed and tilted forward, if the output flow of the steering hydraulic pump is normal, the flow distribution valve in the flow conversion valve works in the left position, so that the auxiliary hydraulic pump and the main hydraulic pump form a parallel fuel supply (boom The same goes for the lifting circuit). ?

When the manual reversing valve is manipulated to make it in the neutral position, the bucket hydraulic cylinder enters and the oil outlet is closed. Relying on the locking effect of the reversing valve, the bucket stays in a certain position. ? https://www.dtsanyparts.com/whee...wheel-loader-lg855n.html