The repair method for the broken limit of the tubular motor is as follows:
Understanding the basic working principle and structure of tubular motor limiters: Firstly, it is necessary to understand the basic working principle and structure of tubular motor limiters in order to better carry out maintenance.
Adjust the knob or screw on the limiter: Based on the actual operating requirements of the motor, set the operating range of the motor by adjusting the knob or screw on the limiter.
Distinguish between upper and lower limit holes: Find two red and white hexagonal small holes on the left or right side of the motor top scroll, which are the places to adjust the upper and lower limits. Use a dedicated limit rod or hex wrench for adjustment.
Connect the power for debugging: After connecting the power, let the doors and windows rise with them closed, and adjust the limit by rotating the adjustment rod in the direction indicated on the limit label.
The specific steps are as follows:
Find the motor position: Find the motor position on the top left or right side of the scroll.
Prepare adjustment tool: Use a dedicated limit rod or hex wrench for adjustment.
Adjust the upper limit: After turning the motor to the stop state at the other end, cut off the power supply. Use the adjustment rod to select a limit hole and rotate it a few turns in the direction of the minus sign until the door automatically stops.
Adjust the lower limit: After adjusting the upper limit, adjust the lower limit using the same method until the door automatically stops.
Common faults and solutions:
Tube motor cannot start: Check if the power cord is in good contact, if the circuit is damaged or disconnected.
Abnormal sound: It may be due to bearing failure and requires re lubrication or replacement of the bearing.
Abnormal speed: Check if the circuit connection is normal and if the sensor is working properly. If the problem persists, check whether the rotor and stator of the motor are damaged or dusty, clean and repair them.
