Fault summary of vibration control system of new MT7500S paver

   With the longer use of paver, large failures and small failures will occur, and now the new MT7500S paver vibration system fault summed up, and its typical faults are the following 3 aspects:

新筑MT7500S摊铺机

Firstly, the vibration speed of the new MT7500S paver is unstable and the reason is analyzed:

Excessive mechanical resistance or insufficient pressure can cause speed instability

A, the belt tension is not enough;

B, the gap between the cutter head and the guard plate is too small;

There is too much material (especially asphalt) in the C and vibrating spaces;

There's too much butter in the D and vibrating bearings;

E and bypass priority valve are not adjusted properly;

F and lack of system pressure

Two, the new MT7500S paver manually and automatically without action

Fault phenomenon: vibration in the work of manual and automatic are not, other parts are normal, from mechanical, electrical, hydraulic three aspects considered as follows:

1, mechanical A, vibrating knife head is stuck; B, C, broken belt; vibration of bearing burning and vibrating bearing locking; D ablation of motor bearing seat.

2, electrical: A, insurance bad; B, switch damage; C, the corresponding wiring bad contact; D, solenoid valve plug contact is bad; E, solenoid valve coil burned

3, hydraulic A, solenoid valve solenoid valve spool card; internal oil plug; B, solenoid valve pressure regulating spring failure, the pressure can not be established; C, tubing (this phenomenon at a glance); D, motor internal leakage or pump discharge; E pump and motor output shaft or input shaft fracture; F, priority control valve bypass damaged.

Three. The new MT7500S paver has manual, automatic and manual operation. It shows that the mechanical and hydraulic systems are in good condition, but there is a problem with the circuit

Electrical parts of the problems are:

A, the control switch is damaged, the automatic parts can not be electrified;

B, PLC damage;

C, corresponding relay damage, or contact ablation;

D, part of the circuit is not in good contact

Paver failure, on the one hand because the machine parts to service life, as well as normal maintenance and maintenance of the week. In this regard, Xiao Bian's proposal is: maintenance, maintenance, and then maintenance.