How to Install Cat^® Side Cutters on Buckets

Estimated read time: 2 minutes

Your bucket faces tough conditions on every job. Bucket side cutters increase digging productivity and provide a strong, wear-resistant surface that protects bucket sides from impact and abrasion. These components also enhance digging efficiency, making it easier to cut through trenching wall material and extend the overall life of your bucket.

Follow the steps in this article to safely remove and install Cat^® side cutters. Or check out the video on how to do this before you dive in: 

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First, inspect the cutters for signs they need to be replaced. You’re checking that the cutters still provide clearance for the bucket during trenching. They should also aid in cutting through trenching wall material and in protecting sidebars. If the cutters are not performing as needed, it’s time to replace them.

Remove the Cutters

Begin by removing the mounting bolts and side cutters. Clean off any packed material from the mounting surface of the bucket’s side bar and of the side cutter.

f needed, use a grinder to remove any burrs or protrusions on the bucket surfaces. Place the new cutter onto the bucket.

To protect the bolts from breaking prematurely, make sure there is no gap between the side plate and the cutter’s shear ledge.

Close up of side cutter on the bucket of a 320 Excavator

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Install the New Cutters

Hand-tighten the bolts, using thread compound if needed. Finally, torque the mounting bolts to the specification listed in your installation instructions.

Order Replacement Parts

You can order replacement side cutters at Parts.Cat.com.

For more information and support, contact your Cat dealer.

Q: What are Cat side cutters used for?
A: Cat side cutters improve bucket performance by providing clearance during trenching and protecting the bucket’s sidebars from wear.

Q: How do I know when to replace Cat side cutters?
A: Inspect your cutters regularly. If they no longer provide clearance, cut effectively or protect the sidebars, it’s time to replace them.

Q: How do I install Cat side cutters?
A: Remove the old bolts and cutters, clean the bucket surfaces, place the new cutter, tighten bolts with thread compound if needed and torque them to the specification in your instructions.

Q: Where can I buy Cat side cutters?
A: Replacement side cutters are available at Parts.Cat.com.

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