Concrete Saw: Vibrates Excessively
A concrete saw that vibrates excessively can make the saw hard to control and cause further damage to the saw itself. This is an important symptom to fix and we can guide you through a few parts that may be causing the issue, such as the bearings, flange, shaft, isolator, blade, or v-belt. Use our troubleshooting guide to help diagnose the problem. This is a general guide only. Refer to your owner's manual for your particular model.
![Bearings](images/repair_center/Concrete_Saw_Parts_Bearing.jpg)
First, remove both belt covers. Depending on your model, one of the belt covers may be the recoil. Relax the tension on the belt by turning the tension nut counter clockwise until it stops. Take out the water line.
Next, remove the belt by walking it off both pulleys. Separate the blade assembly from the engine. Take out the but holding the pulley in place. For this step, an impact wrench works best. However, if you don’t have one handy, you can hold the pulley in place with channel locks...
First, remove both belt covers. Depending on your model, one of the belt covers may be the recoil. Relax the tension on the belt by turning the tension nut counter clockwise until it stops. Take out the water line.
Next, remove the belt by walking it off both pulleys. Separate the blade assembly from the engine. Take out the but holding the pulley in place. For this step, an impact wrench works best. However, if you don’t have one handy, you can hold the pulley in place with channel locks to remove the nut.
Next, remove the arbor on the other side by inserting a screwdriver in the backside. This allows you to hold the blade steady as it comes arbor comes out. Pull off the arbor, blade, flanges and spacers off. Remove the blade cover. Clear any snap rings, bolts or screws necessary to detach the cutting device assembly. This will be different on all models. You can either replace this whole unit, which houses the bearings, or push the bearings out carefully. Do not damage the housing. Install new ones evenly into the housing then reassemble the unit back together.
Reinstall the blade cover, inner flange, spacer, blade, outer flange/spacer and lastly, the arbor and tighten. Reattach the pulley tight and add the belt back on by walking it on the pulleys. Apply the tension by turning the tension nut clockwise until it stops. Reinstall the belt covers/recoil.
![Belts](images/repair_center/Concrete_Saw_Parts_Belt.jpg)
![Blades](images/repair_center/Concrete_Saw_Parts_Blade.jpg)
![Flanges](images/repair_center/Concrete_Saw_Parts_Flange.jpg)
![Shafts](images/repair_center/Concrete_Saw_Parts_Shaft.jpg)
![Isolators](images/repair_center/Concrete_Saw_Parts_Isolator.jpg)