No.

Breakdown

Symptoms

Causes

Solutions

1

No discharging

During normal production or starting up the machine, materials do not discharge.   

Insufficient water when starting up;
Coarse granularity of the material;
Inversion of main motor;
Unbalanced temperature;
Residue inside the cylinder;

Add water to required level;
Grind the material to required granularity;
Change the phase sequence of the incoming line of the motor;
Adjust temperature to required level;
Stop the machine to clean it and restart it till it’s cleaned.

2

Abnormal discharging

Discharging too fast
(over puffed)

High moisture content of the material;
High temperature in zone II;
Temperature controller out of control.

Decrease moisture content;
Lower temperature in zone II;
Change temperature controller.

3

Products do not puff.

Low temperature in zone II;

Adjust temperature to required level;

4

Abnormal cutting

Products do not shape up or have burrs.

The spaces between some cutting tools are too large.

Readjust the spaces.

5

Main shaft cannot be demounted.

When the power is cut or when production is finished, the main shaft cannot be demounted.

The cylinder is stuffed with raw materials;
The gear box is damaged.

Heat to gelatinization point;
Open the gear box to check.