Harvest pushes all farm equipment to breaking point and chaser bins are no exception. A full load puts massive stress on chaser bin tyres so if your bin's tyres are over or under-inflated it can quickly lead to damage to your machine and your soil. 

Consequences of over or under-inflated tyres

Under-inflated tyres can lead to increased fuel consumption, bead slippage, and potential sidewall separation that will rapidly wear your tyres. 

Over-inflated tyres can cause increased soil compaction, soil disturbance, and can create ruts in your soil. They can also cause increased machine bounce which will put strain on your hitch and potentially damage your chaser bin and tractor. 

Before you start

  • "Cyclic load" is defined as the gradual change of payload above the transport load to the maximum allowable load. 
  • Always stay with the tyres while they are inflating to prevent over-inflation. 
  • Use a clip-on nozzle with an extension hose long enough for you to stand to one side of the tyre while inflating. 
  • The maximum load must not be carried further than 1.5km before unloading begins. 
  • Make sure your chaser bin is fully unloaded with the auger in the transport position before any road transport.

Determining the correct tyre pressure

Correct tyre pressure is determined by bin capacity and tyre type. Tyre pressure should be checked weekly to prevent wear and ensure your bin is operating optimally. 

Bin capacity

Tyre type

Maximum inflation pressure
psi kPa
18 tons 30.5x32 18 ply 45PSI 312kpa
900/60 R32 60PSI 416kpa
25 tons 800/65 R32 60PSI 416kpa
900/60 R32 60PSI 416kpa
30 tons 900/60xR32 60PSI 416kpa
30.5x32 18 ply 45PSI 312kpa
35 tons 900/60xR32 60PSI 416kpa
30.5x32 18 ply 45PSI 312kpa


Information courtesy of Australian Tyre Traders

October 12, 2022
Tags: tyres