Track chain derailment is a problem that all excavator operators may have met. Whether parts failures such as walking ring gear, carrier sprocket, chain protector, etc., or the impurities like debris or dirt entering the track will trigger a chain falling off.

Make an example, It is widely acknowledged that a full-size Case excavator is a crawler-type machinery. Once the undercarriage track link comes off, the machinery will be unable to work properly. Compared with taking ways to prevent Case excavator parts track links derailment, finding out the basic reasons possibly make more sense!

6 Common Causes of Case Excavator Parts Track Links Falling Off

“Failures of other undercarriage parts are likely to cause the track chain to fall off.” According to Case excavator parts online supplier RIS. Now, let’s take a minute to explore some of them.

  1. Tension Cylinder. In most cases, you should check the tension cylinder for butter, oil leakage phenomenon.
  2. Track Shoe. Normally, the track might be worn if the machine works for a long time. The wear of the chain bar, chain barrel, and other components on the crawler may cause the track shoe to detach from the track chain.
  3. Chain Protector. Almost all excavators have a chain protector on the crawler, which plays a very important role in preventing the chain from falling off. So never neglect the inspection of your chain protector.
  4. Drive Motor Gear Ring. If the gear ring of the drive motor is badly worn, you’d better replace it. If not, it will endanger the normal running of the crawler chain.
  5. Carrier Roller. In general, the oil seal leakage of the carrier roller will trigger serious wear, this is most likely to cause the link to derail.
  6. Guide Wheel. Inspect any missing or broken screws on the guide wheel. Notice that the groove of the guide wheel is deformed or not.

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Steps to Prevent Case Excavator Aftermarket Parts Track Chain from Falling off

Perhaps one of the most obvious wear items in excavators parts is the crawler chain. Once something goes wrong with the chain, the machine will have to stop working. Below we will show you the 9 basic steps for preventing your track link from the derailment.

  • When walking on the site, please try to place the walking motor at the rear end of the walking mechanism to reduce the pressure on the sprocket.
  • The continuous moving time should not exceed 2 hours. The total movement time of your machinery should be as little as possible. If necessary, a stop-start would be a good idea.
  • Raised obstacles on the ground will concentrate the stress on the crawler chain, avoid it.
  • Adjust the track to be tight in soft places such as soil, on the contrary, regulate the track to be loose when walking on stones.
  • Always look over any debris and dirt involved in the crawler, clean it up as soon as possible.
  • Frequent idling will help discharge the debris deposited in the track when working on a muddy construction site.
  • Avoid the excavator spinning in circles as possible as you can.
  • Check chain protectors regularly.
  • The derailment of the track chain is often related to the damage of other chassis parts. So, it is important to choose the quality undercarriage components for your crawler heavy equipment.

Most Case excavator parts require regular maintenance for optimal performance. Preventive maintenance for a track chain is a vital project and should not be overlooked. Do you have any more good ideas on this topic? Welcome to share your comments!