24V Truck AC Compressor For Caterpillar For Volvo SD7H154468 SD7H154604 WXTK030

24V Truck AC Compressor For Caterpillar For Volvo SD7H154468 SD7H154604 WXTK030

The  AC compressor  is  responsible  for reducing  the  volume of  the  refrigerant  gas, compressing  it  in  order to complete the refrigerant cycle in the  system. It  can  be  thought  of  as  the component that does all the heavy lifting. In order to perform this task, it requires energy, which it obtains  from the engine through a pulley and shaft.

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If Compressor Noises from Under the Hood

When unusual noises arise from your vehicle, particularly concerning the air conditioning system, it is usually an indication of a problem. This includes the AC compressor, which has the crucial task of compressing and circulating the refrigerant for the air conditioning. During your daily driving, the compressor regularly goes through cycles of turning on and off, causing wear and tear on its components over time.

One common issue is with the sealed bearing within the AC compressor, which can deteriorate or seize up when the lubricant leaks out. This can lead to a high-pitched squeal or a grinding noise resembling metal-on-metal. If the bearing seizes, the drive belt may emit a squealing sound as it fails to rotate the compressor.

Repairing AC compressors is sometimes possible, but in most cases, replacing the faulty compressor with a new one is a more effective and durable solution. Not only does this save time, but it also ensures a higher-quality repair.

Compressor Process

1.Piston compressor:As the swash plate fixed on the shaft rotates,

the piston reciprocates. It has a complex structure, is light in weight,

is easy to install in a small engine, and has a short stroke distance.

2.Rotary compressor:The stroke distance is short, the balance is good,

and it generates heat due to moisture. It lacks power at low speeds

and consumes high horsepower at high speeds.

3.scroll compressor:Small in size and light in weight, it can achieve high-speed rotation.

The vortex rotates together with the gap in front of

the vortex disk to generate pressure.

Compressors and Mount & Drive:

Mount & Drive

Consists of a bracket to mount the compressor to the engine, a belt idler pulley, compressor drive belt and possibly and extra drive pulley for the crankshaft.

Compressor Mount

Manufactured of either plate, cast iron, steel or aluminium, this bracket should exhibit

excellent noise absorption qualities especially if using a piston type compressor.

Idler Pulley

A small pulley normally used in conjunction with a belt adjusting mechanism, also used when a belt has a long distance between pulleys to absorb belt vibrations.

Drive Pulley

Some vehicles do not have an extra pulley to accommodate an A/C drive belt, in these

cases an extra pulley is bolted onto the existing crankshaft pulley.

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