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Chapter 4: Test Method

4.1 The instruments does not move

counterweight

4.2 Instrument speed is not accurate

Belt

Step 2: Detection of moving parts

Visually inspect if the steel strip of

Bracket Module is broken. If no

problem, remove the Bracket Module

and visually inspect if the belt is loose or

out of position. After the motor is

powered on, examine whether it is

running,

and

the

counterweight to rotate. If Bracket

Module, belt, and counterweight has no

problem after visual inspection, you need

to replace the motor and MS-Motor

Board.

Step 1: Check Photosensor connections

Check if Photosensor is reliable

connection with and MS-

Step 2: Check Photosensor position

Check if Photosensor plate welding wire is

open circuit, and check whether the fixed

screws of Photosensor are loose. Adjust

Photosensor position and fix Photosensor.

If the problem remains unresolved, replace

Photosensor.

belt

drives