Belt replacement on a PD air compressor

In a periodic test of a baghouse dust collection system, the PD compressor’s belts were found almost worn out, though still running doggedly.

The PD compressor supplies compressed air of about 8 psi to the low-pressure, high-volume pulse cleaning system of the baghouse.

The belts had to be replaced. Per the model number on the old ones, the customer bought a pair of new ones, NAPA A38.

Belt replacement for this PD compressor

The alignment of the sheaves was checked first; it was good.

The sheaves and their inner faces were cleaned up and inspected; they were fine.

The motor base has a jacking bolt, so it is easy to adjust the position of the motor.

The new belts were rotated by hand for a couple of rounds to make sure they sat in the groove properly.

We then measured the span-length of the belt and the sheave diameter, read the motor RPM, and took the V-belt tension table by Browning as a reference to decide the deflection force of the belt as 6 pounds.

After the new belts were installed and properly tensioned with a tension tester, the device ran happily again.

Before wrapping up the day’s work, we checked the belt tension again, and it was still in the satisfactory range.

The customer was happy too.

We follow the same procedure when we check the belt tension or replace belts on a fan or blower.

Leak Test, Air Balancing, Trouble-shooting, and System Evaluation services by Airvate

Dye test for bag/cartridge leak detection
Dust collection system and industrial ventilation system Testing and Air Balancing
Technical services: field survey and dust collection system evaluation and trouble-shooting
New system start-up
Dust sample analysis
Dust collector selection and sizing: baghouse, wet scrubber, cyclone, settling chamber, drop-out box, etc.

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