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National Service and Repairs

Since 1841, the oil industry has been the beneficiary of an amazing set of products from National Oilwell Varco. NOV manufacturers some of the most powerful oil and gas collection systems in the world, and in 1949 they debuted their individual National brand to provide the rest of the industrial world with their versatile torque converters. Torque converters are relatively basic devices that must be used by nearly every heavy-duty machine with a transmission. These components essentially move power from the engine to whatever the engine powers, and no industrial machine can be considered fully automatic without them. K&L Clutch has seen the premium quality provided by National products, so we gladly stock a wide range of National torque converters, and we offer comprehensive National transmission service and repair.

Why are Torque Converters Important?

Torque converters are found in nearly all large-scale machines, and they are considered indispensable technology. Most torque converters are simply hydrodynamic fluid couplers that connect and distribute power from the engine to the driven load. Perhaps the most important function of a torque converter, however, is that it steps up the input rotational power when a higher output is needed. Many converters can even lock to the engine when they match speeds. This process prevents faults and generally holds efficiency at a high level.

National Premium Quality

National did not initially start off making torque converters, but they began to do so when they realized that few third-party components could stand up to the harsh challenges presented in the oil industry. Using their tremendous experience, they designed and manufactured a line of torque converters that perfectly suited their needs, so they decided to make those durable products available to the world. Since then, National torque converters have influenced many industrial fields, including:

  • Mining
  • Crane Operation
  • Drilling
  • Pumping
  • Draglines

These are just a few of the applications where National shines above all else. K&L Clutch understands the importance of using the most powerful components available on the market, and we proudly offer full service National transmission repairs, rebuilds, and more.

A Brief Inventory List

K&L Clutch carries an impressive line of National torque converters, and we can install, service, repair, and maintain any National transmission system. We’ve included below a sample listing of the National torque converters we carry, but this list is by no means exhaustive.

  • C-195-64
  • C-195-125
  • C-245-64
  • C-245-125
  • C-300-64
  • C-300-125
  • C-345-64
  • C-345-125

For a full list of the inventory offered by K&L Clutch, contact us here. Our helpful, professional staff will happily answer any questions you may have about our services, and they can assist in scheduling a consultation.

Good List to Tell Your Torque Converters needs Servicing for Mining Cranes?

Dec 13, 18 • NewsComments Off on Good List to Tell Your Torque Converters needs Servicing for Mining Cranes?


Signs Your Torque Converter Needs Servicing 

As an operator of heavy equipment, you realize that it is definitely important that all of the tools of your trade continue to function properly for the Highest Return on Investments.

When they are malfunctioning, it not only leads to frustration on your part, but it also can lead to downtime and lost business opportunities. If you regularly work with industrial equipment like cranes who need regular service and repair on parts such as torque converters, here are some important signs that your torque converter is going to need service real soon.

Slipping or Shuddering

One of the major signs that international torque converter rebuilders often look for with a torque converter is repeated slipping or shuddering within the machine. International torque converter rebuilders will often look at slipping and shuddering as one of the first signs it’s time to give the machine a serious run-through. First of all, these professionals realize that torque converter shuddering in heavy machinery often means that the equipment has a clutch problem. If the clutch is failing to deliver power to the converter, it can lead to serious performance issues with the industrial machine. Even the best torque converter for industrial cranes will have problems every now and then. Please realize that this is a big repair job and is best left up to a top torque converter rebuilder and not just any mechanic.


What about Dirty Liquid in Torque Converters? 

When to Change Your Torque Converter Liquid?

Torque converter shuddering in heavy machinery isn’t the only ominous sign you need to look out for. Dirty liquid can also be cause for a serious concern. Ideally, you will want all of the liquid in your industrial equipment to appear nice and thick. The hydraulic fluid used to properly run the machine should have the correct viscosity otherwise it can lead to slips, overheating or other serious and costly problems. Even the best torque converter for industrial cranes and other machines will go bad if you do not watch your oils and other fluids.


If you are looking for someone to service your torque converter then this might be the main reason why you do it. First of all, the main concern is bad seals. You also should strongly consider any drop in fluid pressure. Simply put, a drop in fluid pressure can often result in an industrial machine running hot. Of course, this is not an easy task, but if you are able, check the fluid pressure. If you can’t, leave it up to the professionals.

It can be tough to determine when your torque converter needs servicing. Your can call K&L Clutch 24 hours a day for service. We are a worldwide company, so no matter where your location, we will be dedicated to helping you get your equipment back up to par.

Contact the Professionals at K&L Clutch with further questions, as we have a 24/7 service line and the fastest turn around time in the business!