How to replace the carbon brushes in your jigsaw
The motors of most jigsaws have carbon brushes that will gradually become worn during use and may need to be replaced.
If the carbon brushes in your machine have reduced to about a quarter of their original size, they should be discarded and new ones should be installed.
However, compared with other heavy-duty power tools, it is less likely that the brushes will wear out to such an extent that the performance of the jigsaw is affected.
Despite this, if you use your tool extensively or to cut particularly hard materials, you may find that replacement brushes are required.
Step 1 - Disconnect jigsaw from power supply
First, check that your jigsaw is disconnected from the mains or, if it is cordless, you have removed its battery.
Step 2 - Locate and remove brush cover
Use a flat head screw driver to remove one of the brush covers on the side of the tool.
This will allow access to the brush underneath.
Step 3 - Remove old brush
Pull out the worn carbon brush from inside the brush slot.
Step 4 - Remove any debris
Use a vacuum to remove any dust or debris that may have become lodged inside the brush slot.
Step 5 - Insert new brush
Fit the new brush into the brush slot and hold it in place so that the spring doesn't cause it to jump out.
Step 6 - Replace brush cover
Then replace the brush cover and tighten it using your screwdriver.
Step 7 - Repeat process
Even if only one brush is worn out, both brushes should be replaced at the same time.
Repeat the above procedure to replace the second brush.
Step 8 - Turn on jigsaw
After installing a new set of brushes, turn on your jigsaw and run it without load for 1 minute to 'break in' the brushes.