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Power Drill Chuck Replacement

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  1. Power Drill Chuck Replacement, Unplug!: шаг 1, изображение 1 из 2 Power Drill Chuck Replacement, Unplug!: шаг 1, изображение 2 из 2
    • Whenever performing repair or maintenance, make sure to unplug the tool first.

    • The last thing you want is for the drill to start spinning a wrench around at 3000 RPM in case you inadvertently pull the trigger!

  2. Power Drill Chuck Replacement, Removal of Retaining Screw: шаг 2, изображение 1 из 3 Power Drill Chuck Replacement, Removal of Retaining Screw: шаг 2, изображение 2 из 3 Power Drill Chuck Replacement, Removal of Retaining Screw: шаг 2, изображение 3 из 3
    • Open up the jaws all the way and look for a retaining screw at the bottom of the chuck. If a screw is present, you will need to remove it before you can unscrew the chuck.

    • These retaining screws always have a left hand thread, so you'll have to turn clockwise to remove it.

    • Closing the jaws until they just touch the screwdriver can help to keep it centered (especially on slotted screws) and perpendicular.

    • The screw can be stubborn to come loose, especially if it has threadlocking compound on it or if it is rusty. An impact driver can work wonders here. And remember - clockwise!

  3. Power Drill Chuck Replacement, Identifying Means of Gripping: шаг 3, изображение 1 из 3 Power Drill Chuck Replacement, Identifying Means of Gripping: шаг 3, изображение 2 из 3 Power Drill Chuck Replacement, Identifying Means of Gripping: шаг 3, изображение 3 из 3
    • Depending on the specific make and model of your drill and chuck, it may be possible to grip either or both with a regular open end wrench.

    • Some spindles have a hexagon-shaped portion, some have flats machined on two sides. Some chucks also have two flats or a hex shape machined either at the front or back end.

    • Depending on which portions you can fit a wrench to, you'll be using the Twin Wrench, Single Wrench or No Wrench Method.

    • Use the Twin Wrench Method whenever possible as this is more civilized and allows you to apply more controlled force.

  4. Power Drill Chuck Replacement, Twin Wrench Method: шаг 4, изображение 1 из 3 Power Drill Chuck Replacement, Twin Wrench Method: шаг 4, изображение 2 из 3 Power Drill Chuck Replacement, Twin Wrench Method: шаг 4, изображение 3 из 3
    • If both the spindle and the chuck have some provision that allows the use of a wrench, it's your lucky day!

    • In some cases, you may need to use a thin wrench (or grind down a regular one) as there may not be sufficient space to fit a regular size wrench.

    • Unlike the retaining screw, the chuck is held on with a regular right-hand thread. Turn counter-clockwise to remove.

    • With the opposing action of two wrenches, even the most stubborn of chucks should come loose.

  5. Power Drill Chuck Replacement, Single Wrench Method: шаг 5, изображение 1 из 3 Power Drill Chuck Replacement, Single Wrench Method: шаг 5, изображение 2 из 3 Power Drill Chuck Replacement, Single Wrench Method: шаг 5, изображение 3 из 3
    • If the chuck has no provision for a wrench, the easiest way to turn it forcefully is by means of a hex key gripped in the chuck jaws by its short end.

    • If a wrench can be fitted to the spindle, lay the drill flat on the edge of a workbench or sturdy table, with the wrench resting on the table, the chuck overhanging the edge and the hex key pointing slightly upwards from horizontal.

    • It won't hurt to try if you can release the chuck by pushing down on the hex key by hand - though this will rarely work.

    • If hand force isn't sufficient, firmly hold down the drill and give the end of the hex wrench a solid whack, preferably with a wooden or plastic hammer. A sharp blow should loosen the chuck instantly.

  6. Power Drill Chuck Replacement, No Wrench Method: шаг 6, изображение 1 из 3 Power Drill Chuck Replacement, No Wrench Method: шаг 6, изображение 2 из 3 Power Drill Chuck Replacement, No Wrench Method: шаг 6, изображение 3 из 3
    • Even if the spindle cannot be gripped by any means, the hex key method described in the previous step will usually work on both corded and cordless models.

    • Many cordless drills have an automatic spindle lock.

    • On mains powered drills, inertia of motor and gears usually offers sufficient resistance to free the chuck from the spindle.

    • If you're relying solely on inertia, you need a sudden jolt to loosen the chuck. Press down hard on the drill to keep it from moving and hit the hex key with a particularly sharp blow.

    • This will take a steel hammer - much as you may hate to mistreat your beloved hex wrench like that - as a plastic or wooden hammer would cushion the impact.

  7. Power Drill Chuck Replacement, Alternative: Using Motor Torque: шаг 7, изображение 1 из 1
    • For cordless drills and low speed/high torque corded models, an alternative to the No Wrench Method is to grip the hex key in a vise, put the drill in reverse, hold it tightly with both hands and squeeze the trigger.

    • However this method is not for beginners as it is not without risk: the reaction torque could hurt your wrist and the locked rotor current could burn out the drill motor.

    • If the drill has a mechanical speed selector and/or clutch, make sure to set the gear to the lowest speed and/or the clutch to the highest setting.

  8. Power Drill Chuck Replacement, Means of Last Resort for Removing a Broken Chuck: шаг 8, изображение 1 из 2 Power Drill Chuck Replacement, Means of Last Resort for Removing a Broken Chuck: шаг 8, изображение 2 из 2
    • If the chuck is completely broken, you may not be able to tighten its jaws on a hex key. In those cases, the Single Wrench or No Wrench Method won't work.

    • On keyed chucks, if no other provision for gripping is present, you can use a hook spanner by locating the pin in one of the holes for the chuck key.

    • If you were born under a very lucky star, you might get away with fitting a chuck key and hitting that with a hammer at just the right angle. I did not tell you to do that.

    • A pipe wrench will grip just about any chuck, but at the risk of damaging it.

    • If all else fails, it is often possible to disassemble the drill, clamp either the chuck or the spindle in a vise and grip the other part with a pipe wrench or other gripping tool. This is very likely to damage the spindle and/or chuck though.

  9. Power Drill Chuck Replacement, Fitting a New Chuck: шаг 9, изображение 1 из 2 Power Drill Chuck Replacement, Fitting a New Chuck: шаг 9, изображение 2 из 2
    • If there's no retaining screw and you anticipate forceful counterclockwise action (as when unscrewing), apply a small amount of threadlocking compound to the spindle thread.

    • Use a medium-strength variety, not the kind you'll have to heat with a blowtorch if you need to take off the chuck again at a later stage!

    • Screw the chuck onto the spindle as far as it will go. You don't need to tighten it with excessive force, it will tighten itself with normal use.

  10. Power Drill Chuck Replacement, Fitting the Retaining Screw: шаг 10, изображение 1 из 2 Power Drill Chuck Replacement, Fitting the Retaining Screw: шаг 10, изображение 2 из 2
    • Insert and tighten the retaining screw if applicable (not all chucks are counterbored to accept a retaining screw).

    • Counter-clockwise of course!

    • If the screw is damaged, use a fresh one to spare yourself some aggravation down the road.

    • It doesn't hurt to also treat these threads to a dab of threadlocker.

  11. Power Drill Chuck Replacement, Done!: шаг 11, изображение 1 из 1
    • Presto - your new chuck should provide you with years of drilling joy!

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12 участников успешно повторили данное руководство.

Thomas Opsomer

Участник с: 06/06/14

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iFixit EU Team Участник iFixit EU Team

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12 Комментариев

Very well explained guide!

Thanks.

Dave Hughes - Ответить

The allen key in Vise using motor torque worked for me. It was really stuck.

Alex Tat - Ответить

What if it is corroded chuck

Abdulrahmon idris - Ответить

@Abdulrahmon idris You mean if the threads in spindle and chuck are rusted solid? You could try spraying penetrating oil into the joint and letting it soak in for a few hours before trying to loosen the chuck. Heat can also help on solid metal-body chucks: heating the chuck with a blowtorch will cause it to expand, which may free up the threads. Be aware though that this could damage seals or other non-metal parts in the chuck, if present; and I would definitely remove the spindle from the drill before doing this, if possible (some spindles slide in from the inside of the gear case meaning they can't be removed unless the chuck comes off). If all else fails, you may need to resort to an angle grinder to grind through the chuck...

Thomas Opsomer - Ответить

Yeah I burned up a Makita cordless hammer drill using in the vise method to me it looks like they had red Loctite not blue used on the threads but anyway my mistake was i didn’t adjust the clutch first. It didn’t take much for it to sizzle I can tell you that. It was done and over with before I could react

Joshua Stang - Ответить

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