Jig Saw: Bad Vibration
If your jig saw is experiencing bad vibration, this can really impact the precision of your work. The most common parts that are associated with this problem are the base, guides, bearings, and blade. Once you have figured out which part is causing the issue, read our troubleshooting and repair guide for tips on how to fix it yourself. Refer to your owner's manual for instructions relating to your model.
Bearings
Bearings will make a growling, humming or low-moaning sound when they are going to bad and will usually be accompanied by a vibration. To check the bearings, and replace any that are worn, you will need to remove the base and the screws securing the jigsaw case together. Open up the case of the jigsaw and remove the brushes. Pull the armature out of the case and spin the bearings on the armature.
A bad bearing will feel rough when spinning. A smooth-spinning bearing indicates it is okay. To replace a bad bearing, use a bearing separator to remove. Once the separator is installed onto the bearing, place the separator on top of the bench vice. Open enough so it will not make contact with anything but the separator, then tap on the shaft with a punch and a hammer until the bearing is free. You can also use a...
A bad bearing will feel rough when spinning. A smooth-spinning bearing indicates it is okay. To replace a bad bearing, use a bearing separator to remove. Once the separator is installed onto the bearing, place the separator on top of the bench vice. Open enough so it will not make contact with anything but the separator, then tap on the shaft with a punch and a hammer until the bearing is free. You can also use a...
Bearings will make a growling, humming or low-moaning sound when they are going to bad and will usually be accompanied by a vibration. To check the bearings, and replace any that are worn, you will need to remove the base and the screws securing the jigsaw case together. Open up the case of the jigsaw and remove the brushes. Pull the armature out of the case and spin the bearings on the armature.
A bad bearing will feel rough when spinning. A smooth-spinning bearing indicates it is okay. To replace a bad bearing, use a bearing separator to remove. Once the separator is installed onto the bearing, place the separator on top of the bench vice. Open enough so it will not make contact with anything but the separator, then tap on the shaft with a punch and a hammer until the bearing is free. You can also use a bearing puller to remove the bearing.
To install a new bearing, place a socket on the inner race of the bearing to avoid any damage. Tap in place with a hammer. Reinstall the armature back on the housing and reinstall the brushes. While the case is open, check the bearing on the gear that fits on the mechanism that transfers the rotary motion into reciprocating motion. Remove this gear and spin the bearing on it. If you suspect it is bad, replace the bearing on it. This is a small bearing, so it may be a lot easier to replace the gear with the bearing already on it. Install the gear back in the housing, ensuring the bearing is inside the mechanism that moves the blade up and down. Once the jigsaw is repaired, reassemble the case back together and reinstall the base.
A bad bearing will feel rough when spinning. A smooth-spinning bearing indicates it is okay. To replace a bad bearing, use a bearing separator to remove. Once the separator is installed onto the bearing, place the separator on top of the bench vice. Open enough so it will not make contact with anything but the separator, then tap on the shaft with a punch and a hammer until the bearing is free. You can also use a bearing puller to remove the bearing.
To install a new bearing, place a socket on the inner race of the bearing to avoid any damage. Tap in place with a hammer. Reinstall the armature back on the housing and reinstall the brushes. While the case is open, check the bearing on the gear that fits on the mechanism that transfers the rotary motion into reciprocating motion. Remove this gear and spin the bearing on it. If you suspect it is bad, replace the bearing on it. This is a small bearing, so it may be a lot easier to replace the gear with the bearing already on it. Install the gear back in the housing, ensuring the bearing is inside the mechanism that moves the blade up and down. Once the jigsaw is repaired, reassemble the case back together and reinstall the base.
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Blades
Worn, bent or poor quality blades can cause the jigsaw to vibrate and jump all over the place, making it hard to handle and giving you a poor cut. Replace the blade with a good quality blade by removing the screw securing the blade in the jigsaw. Remove the old blade and replace with a new one and then tighten the screw down to hold it in place. Some woods are harder to cut than others, so use a sharper blade and go slower on the cut to prevent vibrations.
Worn, bent or poor quality blades can cause the jigsaw to vibrate and jump all over the place, making it hard to handle and giving you a poor cut. Replace the blade with a good quality blade by removing the screw securing the blade in the jigsaw. Remove the old blade and replace with a new one and then tighten the screw down to hold it in place. Some woods are harder to cut than others, so use a sharper blade and go slower on the cut to prevent vibrations.
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Bases
If the base is not adjusted properly, or the screws holding it in place are loose, it will cause a bad vibration. Check to ensure it is adjusted properly for your settings and tighten the screws down to keep the guide in place.
If the base is not adjusted properly, or the screws holding it in place are loose, it will cause a bad vibration. Check to ensure it is adjusted properly for your settings and tighten the screws down to keep the guide in place.
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Accessories
When using guides on your jigsaw, ensure they are installed correctly and secure to prevent any unnecessary vibrations. Also, make sure you are using the correct guides for your jigsaw as well.
When using guides on your jigsaw, ensure they are installed correctly and secure to prevent any unnecessary vibrations. Also, make sure you are using the correct guides for your jigsaw as well.
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