Brake valve operation
1. Brake valve is now at neutral position.
2. The pressure of supply line goes high and this pressure applies to the backside of brake valve and then
pushes the brake valve against spring. So return side oil can go to tank.
3. When machine travels at the down slope, this can cause overrun. That means the amount oil of supply
line is less than expected. In this case we need brake function to control the machine from over-speed.
The pressure of supply line becomes low and the brake valve return to the neutral position. So we can
block the return line and slow down the machine speed. During this period, the orifice on the brake valve
help machine to be driven smoothly.
Picture text:
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