Refrigerator Troubleshooting. Drive belts

The correct location of the flywheel and the drive pulley and the correct tension drive belt(s)are most important in the process of installing or replacing the belt(s) or engine. Improper alignment and tension can cause excessive wear on the belt, the efficiency loss of the compressor and motor failure due to engine trouble or a shaft of the compressor bearings.

Alignment

This can be done with rope or preferably a straight edge (AB Fig. 91), aligning pulley drive motor of the compressor, a flywheel. It is important that the fields X and Y are aligned exactly. Any change in the video or flywheel thickness must be compensated when aligning flywheels and pulleys person (Z zone).

Choice

All belts are subject to bending and compression, which will inevitably result in tension. Centrifugal force also adds to the zone stress. The distance between the flywheel and pulley plays an important role in the amount of stress and forces generated during the operation of the motor and the compressor.

Therefore, it is important that the belts are matched to the design characteristics, i.e. that they are the right length, thickness and section. Any increase in the centrifugal force will tend to increase the amount of stretch on the belt. Thin belt will create even greater force.

Voltage

Poorly equipped belt increases centrifugal force causes excessive wear and causes the belt to slip. Belt fitted too tightly can break and has side effects on the shaft bearings.

He said that the belt is too slack when he jumps off the pulley. However, this is an exaggeration, because even if the belt is in force, it may still be subject to unnecessary flexing, wear and stress. A recognized method to adjust the belt tension is to allow for a maximum of 25 mm (1 in), deviations in the position shown in Р РёСЃ.92.

Thickness

Examples of centrifugal force variations with belts of different thickness are shown in Fig. 94.

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