3 - 3
Brake Valve (Continued)
Over-Running
When the machine is travelling down a steep sloping
surface, the travelling speed is higher and the hydraulic
motor will rotate beyond the supply from the hydraulic
pump, this is called over-run.
During over-running, the hydraulic pressure is reduced as in
the braking procedure above. The brake valve acts the same
as during a stop procedure, the hydraulic motor passage is
restricted, back pressure is produced, so that the hydraulic
motor speed is reduced with rotation by inertia force to
match the oil supply.
Section F Transmission
9803/6020
Section F
3 - 3
Issue 1
Operation
291150
To Next Page
Loading...
