Case study: how about the insufficient oil supply pressure of SF350 paver?

The cause of insufficient oil supply pressure of SF350 paver is failure:

1, lack of hydraulic oil;

2, oil filter clogged;

3, pump wear;

4, overflow valve damage;

5 、 left or right screw distributor hydraulic motor serious leakage;

6 、 left or right screw distributor pump leakage serious

SF350 paver oil pressure shortage, repair situation:

After inspection, the hydraulic oil tank in hydraulic oil and oil filter is enough, just change soon. To analyze this phenomenon from the metal friction sound heard a strong possibility, screw pump and hydraulic motor. The maximum damage due to the pressure of oil left and right screw pump hydraulic motor respectively drive the left and so right or left and right motor pump at the same time, the possibility of damage is extremely low.

Terms of settlement：

SF350 type paver plug is equipped with hydraulic tubing disassembly, hydraulic calamity can be left to screw the hydraulic motor and remove the plug plug. Then start the engine and allow it to normal operation, the supply pressure is normal, when the control right cloth spiral control handle, right spiral cloth rotation. When dismantling the left screw motor, the bearing and oil seal have been damaged, replacement of the motor fault can be ruled out. Similarly, the method could be used to check the right screw hydraulic motor; if the fault is not ruled out, it should detect the spiral distributor pump.