DTF Applicator Troubleshooting Guide Mechanism

1. Applicator Can't Be Initiated

   - Check the power connection.

   - Open the control box and check if the indicators light are on.

2. Touch Screen Error Function Position Shift

   - Long press the reset button on the back of the screen and click on the cross to calibrate.

   - If the problem persists, contact us for repair or replacement.

3. Automatic Mode is Not Working or Abnormal

   - Check if anything is covering the sensor or if it is too dirty. Clean and adjust its position slightly. If it still does not work, contact Polytech or replace the sensor.

4. Brush Does Not Rotate

   - The motor may not rotate due to an accumulation of hot melt powder at the bottom, causing excessive resistance between the brush and the sieve plate.

   - Raise the height of the brush by adjusting the screws on both sides to reduce resistance.

   - If the brush still does not rotate, check the wire connection to the dusting motor.

5. Belt Shift

   - After prolonged use, the belt may loosen and shift to one side.

   - For the earlier version (PC4 PC5 etc.), remove the strip cover on both sides of the oven. Adjust the belt tightness using the screw combination near the powder area, then tighten the belt and replace the cover.

   - For the latest version (PM460 PM460S), adjust the screw at the end of the belt to shift it to the best position.

   - If the indicator light is on but the screen is not working, replace the screen.

   - If the indicator light is off and the power cables are well connected, the power box at the bottom of the control box may be damaged and needs replacement.

6. Hot Melt Powder Not Dusted onto Film When Brush is Moving

   - Confirm that the size and type of hot melt powder are appropriate (80-200 microns). Use the hot melt powder provided by POLYTECH.

   - If appropriate, check if the sieve plate is blocked and clean it if necessary.

7. PET Film Can't Be Fixed onto the Belt Through the Oven

   - Check whether the blower inside the applicator is working.

   - If the blower is working, check whether the belt joint affects the suction strength. Shown in the picture below on the right. If so, it will be soon back to normal after moving forward.

  - If the film is not at the joint, shown in the picture below on the left, check for leaks in the plastic pipe connecting the blower and suction plate, and seal each junction with adhesive tape.

8. Temperature Control Failure

    - Check if the temperature control connection is correct. If other electrical systems work normally, consider replacing the temperature control voltage regulator.