Rotomatic changing bits

I bet it must be grease free, it came like that.

Hi leigh abear...
I will send you to the dremel website where you can watch a video on the dremel model 1100 and it will explain how to use it and change bits,cutters,ect.
Do change your bit without going to the website push down on the large button on top to lock the tool, and then you wil loosen the bit holder bu turning it anticlockwise to loosen the grip on the tool you have in the bit holder.
Please take time to rate me

http://www.dremel.com/en-us/Tools/Pages/ToolDetail.aspx?pid=1100

Its too tight. Loosen it a bit.

just push the collar back towards the drill motor as you push the bit in. some you have to turn and push in. If you push the bit too hard the collet might not release. If it's rusty it'll be diffacult to push back.

The chuck will not turn. So to loosen just turn the black plastic counter clockwise. The chuck will loosen. Or you can hold the black part on the chuck tight and put the drill in reverse and slowly squeeze the trigger and the chuck will loosen also. Do the opposite to put a new bit in. Put the drill in forward and hold the black part of the chuck and squeeze the trigger with the bit in place and it will tighten down on the bit.

I usually switch it into reverse and hold the chuck at the same time. It should loosen and the bit will come out. You can also hold the part next to the chuck and turn the chuck clockwise to loosen the bit. To insert a new bit, just do it the opposite way.

To change bits you should unplug the device.

Turn the shaft while pressing on the lock button located toward the tip of the machine. Turn until lock button is allowed to depress fully.

While holding the lock button loosen the collet nut at the tip of the machine.

Remove the bit you want to replace and slide in the new one.

Sometimes you will have to tap lightly on the top of the bit to get it to release.

You may at times have to replace the chuck to accommodate the different shaft dimensions of some of the bits.

To do this you will have to remove the collet nut completely to remove the chuck.

Put the key in and turn counter clockwise. If the drill got wet some rust may have formed. Sometimes those chucks get real tight. A small tube (cheater) that is longer than the key will give more torque
to loosen the chuck. Slide the tube over one of the key shafts. You can spray a bit of penetrating oil around the chuck gears.

On my older Sears router there is a lever on the base near the collet nut that you slide to engage the motor shaft to lock the motor shaft for bit changes. On newer models you may have a button or different mechanism to lock the shaft. After the shaft is locked you can use a small wrench to loosen the collet nut, usually by turning it counter-clockwise (viewed from the base). Once the nut is loose the bit should slide out (sometimes the bit is stuck in the collet and the nut may need to come all the way off to get them apart). Just replace the bit with a new bit with the same shaft diameter, tighten the nut, and you are set. If the new bit has a different shaft diameter than the old bit you may need to change the collet also (in general, different collets are used with different bit shaft diameters).

slide the orange on/off switch all the way back then push in the black button the switch slides over. This will lock the shaft-then use small wrench provided w/ tool to turn the collet nut