How to change drill bits and chuck on a servo 7000 drill press

The chuck could be threaded like an average power drill.

Respectable drill presses use a hollow quill shaft that is likely to be machined into a taper that is likely to be number 1, 2 or 3 Morse taper.

Morse taper drill bits are used a lot - the shank is tapered and will grip and drive when inserted into the quill with just a small force. When the bit is to be removed the quill is turned by hand until a slot in the quill lines up with a slot in the housing and a wedge-shaped steel tool is slid in and tapped breaking the taper fit.

Most such drill presses are supplied with a chuck for light duty drilling already mounted. The chuck is often a Jacobs type mounting by means of a Jacobs taper onto a Morse taper adaptor.
The adaptor is tapered at both ends - at the lower end the taper is steep and the chuck must be pressed on with some force. The upper end will have the same gentle taper of the Morse taper drill bits and is removed in the same way.

Using the chuck drilling is limited to the capacity of the chuck, typically 1/2" or 5/8" unless blacksmith's drill bits are used that have stepped shanks.
Morse taper drill bits will allow heavy duty drilling far in excess of the chuck capacity.

Hopefully your problem is caused by the chuck rather than a bent quill.

that depends on whether or not you have a keyed or keyless chuck. if you have a keyless chuck then you do not need another tool you must turn the chuck counter clockwise to loosen the chuck and replace the bit. if you have a keyed chuck then you will see three holes around the chuck of the drill ie the part that holds the bit. just below the holes you will see teeth spaced evenly around the drill. a chuck key allows you to put the end of the key in one of the holes and using the teeth you turn the chuck key thereby loosening the chuck and allowing you to change the bit. if you have a keyed chuck just take it to your local hardware store and they can provide you with the correct key and show you how to remove the bit. if your chuck is keyless the hold the chuck put the drill in reverse and pull the trigger use a glove to protect your hand

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.

down inside the chuck theres a big flat head screw that should do it.

This drill uses a keyless chuck. which means you have to hold onto the barrel by the end of the drill chuck. Then you need to put the drill in reverse to open the chuck to put a bit in. Insert a bit and then put the drill back into forward and hold chuck to tighten.

I couldn't find your particular drill model drill. If this is a corded drill with a 1/4 inch chuck, you would do better to just buy a corded 3/8 drill. But otherwise, yes, change the chuck if you can find one to fit at a reasonable price. Drill chucks are sized to hold a straight bit of the maximum hole diameter that the drill has enough torque to drill into mild steel. If you find a larger one that will fit on your drill, it will work fine, but if you overload it you will burn it out. If you don't drill into steel with any larger bit than the original chuck, then this won't be a problem.

The drill uses bits with the SDS+ connection end. You have three different modes of operation. Hammer drill for drilling into concrete. Drill only for drilling into wood or steel and chip only for chiseling concrete. Now for drill only you would have to change out the chuck for a jacolbs style.

The bits just snap in the chuck. To remove the bits you just slide the chuck sleeve back and remove the bit. To change the chuck you wolulld place the palm of your hand over the chuck and using your fingers pull the sleeve on the chuck that is near the red housing towards your palm and just pull off the chuck.It will snap back on the same way.

This drill has a keyless chuck. Put your bit in the chuck and hold the collar of the chuck while pressing the trigger in the forward position. To undo the chuck do this in reverse. You can also hand tighten the keyless chuck if you prefer. I have a 1/4' adapter that I keep in my drill so I can change bits quickly.

hold outside collar on chuck firmly with your hand and reverse drill

hi this should be reletively easy hold the end black bit with the sivler bit holde coming out not the black bit next to the yellow case on drill you hold the black part thats at end of drill by where the bit goes into not the black bit near the trigger hope i explain this ok.
Hold this bit tight then put drill in reverse then press trigger a couple of times it might be tight but shouldnt be that tight it wont undo.
1 put in reverse
2 hold black plastic piece near where drill bit goes into
3 press trigger few times
4 this should undo it allowing you to put a bit in
make sure its in reverse else you will just tighten it up more let me know if you need further assistance ok