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There is play in the chuck may be bearings. it means drill bit wanders slightly when drilling. drill bits lock in properly but the chuck has left to right play in it
Re: There is play in the chuck may be bearings. it means...
You seem to have found the problem, now you must disassemble the gear head and remove the chuck. Open the chuck jaws wide and look for a screw inside that locks the chuck to the shaft.
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grab the bottom part of the spinning part of the drill nearest the drill's motor.
then
grab the spinning shaft bit nearest the drill bit
pull them apart slightly
when the two parts are pushed together thay lock the chuck
I own a ryobi hammer drill that does the same thing
This can be due poor chuck settings and could be that it is not tightening properly. You can oil or use some degreasing spray to unlock the jam or else the chuck could be defective.
You are right,but if the wobble is not too big to do drill jobs it can be used.Sometimes drill jobs need to be precise,so the you will need it just aligned.
I just put mine in reverse and grasp the chuck with a pair of channel locks. Pull the trigger and hold the channel locks tightly. The chuck will release the bit.
My husband explained this, via phone ..... made it simple....... grab the silver ring area beneath the black top area where the drill bit is located. Hold the silver area firmly, while you twist the black top. You will see the release, then remove drill bit. Laymen's terms, but it worked!!
These units have only been out for a short while and most are on warranty. Take it to a Bosch Service center in your area and they will replace the front of the unit. Unfortunatly this is a problem with this type of unit. The bit will deform slightly from the impacting action and lock itself in the chuck.
What size bit are you using if it is real small it may be below the min sixe require for that chuck .If it is say 1/8 or larger it may be time for a new chuck .They are easy to replace open the chuck as far as you can there is a screw inside them most of them are left hand threads just back it out and tap the chuck loose with a hammer .Make sure you know the threads of your chuck when you buy the new one most are 1/2-20 but some can be 3/8-24 tpi
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