What is a track adjuster?

Track adjusters maintain the chain's tension in tracked vehicles of all sizes through a combination of actions. The first article on track adjusters delves into the types, functions, and components of this essential part of earthmoving machines.

How do you adjust the tension of loose tracks on an excavator?

The grease within the adjuster cylinder maintains the track tension. Locate the adjustment grease fitting in a small hole on the track frame near the idler. Inject grease with a grease gun to tighten the track. Use a wrench to carefully loosen the fitting and release grease to loosen the track.

What is track tension in excavator?

On small machines up to around three tonne, a distance of 20-30mm sag between the centre roller and the track is acceptable. On large machines, around 50mm is acceptable. This tension is for rubber tracks only.