Advice on Changing Grader Blades
If you want to ensure the optimal performance of your grader blades, it’s important to maintain them correctly. The most important maintenance task of all is ensuring that your grader blades have a good cutting edge. Where the cutting edge is positioned will depend on what type of grader you are operating. For instance, most graders have a blade with a cutting edge on the bottom, bolted to the mouldboard, but there are versions of graders with cutting edges that can be attached to the side of the blade too.
As you probably already know, the cutting edges of the grader blade do most of the hard work. Of course, these cutting edges wear down and just how quickly they do will depend on the abrasiveness of the materials being worked with, as well as the intensity of the working load placed on the machine.
When it’s Time to Change Your Grader Blades
For your grader blades to work properly, there should be about 3,5 cm of cutting edge available. If this edge wears down too far, you will find that the grader becomes ineffective and slow. If you wait too long before changing the blades, there is the risk of excessive wear on the mouldboard, and if this needs to be replaced, the costs could be high. Most manufacturers recommend checking the grader blades’ cutting edge every 25 to 50 hours of service. If you notice wear beyond 3,5 cm, it’s time to change those blades.
Grader Blade Change Checklist
Always wear protective clothing when changing blades. These include well-fitted clothes and a hard hat. Follow this checklist:
• Block the grader’s tandem wheels, secure the parking brake, and start the grader.
• Lower the mouldboard to the ground and switch the grader off.
• Remove all the bolts from the cutting edge and check each one for wear.
• Disconnect the blade from the mouldboard. Be sure to stand clear to avoid injury as the blade falls.
• Clean the cutting edge surface and put the new cutting edge in place. Now you can insert all the bolts and nuts and secure them.
• Remove grader blocks, start the machine and lower the mouldboard to exert pressure on the ground.
• Put the grader into neutral and switch it off.
It’s that simple! Now you’re ready to get back to work.
Need more information and advice on changing grader blades? Need to invest in a new set of blades? Waste no more time. Contact us at Tractor & Grader Supplies for more information and advice today