Difference between revisions of "Change a Drill Chuck"
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#Insert an Allen wrench into the chuck. Choose the largest Allen wrench you can insert. Turn the Allen wrench to tighten the chuck, until it is held firmly in place. | #Insert an Allen wrench into the chuck. Choose the largest Allen wrench you can insert. Turn the Allen wrench to tighten the chuck, until it is held firmly in place. | ||
#Set the gearbox to the lowest setting. This will reduce resistance from the gears to a minimum.<ref name="eReplacementParts">https://www.youtube.com/watch?v=bp_mXt3Zo5w</ref> | #Set the gearbox to the lowest setting. This will reduce resistance from the gears to a minimum.<ref name="eReplacementParts">https://www.youtube.com/watch?v=bp_mXt3Zo5w</ref> | ||
| − | #Tap the Allen wrench with a mallet. Position the drill so the Allen wrench lies horizontal and overhangs your workbench. Give the end of the Allen wrench a sharp downward strike with a wooden or rubber mallet.<ref>http://www.jacobschuck.com/drill-chuck-removal-guide</ref> Most drill chucks have a standard thread, so striking the Allen wrench in a counterclockwise direction should loosen the chuck from the drill. If you'd like to be certain, contact the manufacturer and ask whether your model is standard or reverse threaded onto the drill spindle. | + | #Tap the Allen wrench with a mallet. Position the drill so the Allen wrench lies horizontal and overhangs your workbench. Give the end of the Allen wrench a sharp downward strike with a wooden or rubber mallet.<ref name="rf1">http://www.jacobschuck.com/drill-chuck-removal-guide</ref> Most drill chucks have a standard thread, so striking the Allen wrench in a counterclockwise direction should loosen the chuck from the drill. If you'd like to be certain, contact the manufacturer and ask whether your model is standard or reverse threaded onto the drill spindle. |
#*This can bend or crack the drill casing if the strike is too forceful or at an angle. Start with light force and increase if necessary. This is especially important if you are just trying to loosen a stuck screw. | #*This can bend or crack the drill casing if the strike is too forceful or at an angle. Start with light force and increase if necessary. This is especially important if you are just trying to loosen a stuck screw. | ||
#Remove the chuck by hand. Once the chuck is loosened from the drill casing, you can unscrew it by hand. | #Remove the chuck by hand. Once the chuck is loosened from the drill casing, you can unscrew it by hand. | ||
| − | #Replace thread-locking fluid on the screw (recommended). Once you are ready to install a new chuck, dab a bit of thread-locking fluid onto the end of the screw. Roll it on your finger to spread the fluid evenly.<ref>https://www.youtube.com/watch?v=NIV_XuHeQUY</ref> | + | #Replace thread-locking fluid on the screw (recommended). Once you are ready to install a new chuck, dab a bit of thread-locking fluid onto the end of the screw. Roll it on your finger to spread the fluid evenly.<ref name="rf2">https://www.youtube.com/watch?v=NIV_XuHeQUY</ref> |
#*If your keyless chuck has no screw, you may need to use thread-locking fluid on the threads of the chuck where it screws onto the drill. | #*If your keyless chuck has no screw, you may need to use thread-locking fluid on the threads of the chuck where it screws onto the drill. | ||
#Mount the new chuck. You can use the same tools to install a new chuck, or to replace the original chuck after cleaning:<ref name="eReplacementParts" /> | #Mount the new chuck. You can use the same tools to install a new chuck, or to replace the original chuck after cleaning:<ref name="eReplacementParts" /> | ||
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===Changing a Tapered Drill Chuck=== | ===Changing a Tapered Drill Chuck=== | ||
| − | #Measure the diameter of the spindle. Keyed drill chucks do not typically thread onto the drill. Instead, the chuck's tapered end inserts onto a matching spindle.<ref>http://www.ereplacementparts.com/article/890/How_to_Remove_a_Drill_Chuck.html</ref> Look at the gap between the chuck base and the drill, and you should see this spindle. Measure its diameter. | + | #Measure the diameter of the spindle. Keyed drill chucks do not typically thread onto the drill. Instead, the chuck's tapered end inserts onto a matching spindle.<ref name="rf3">http://www.ereplacementparts.com/article/890/How_to_Remove_a_Drill_Chuck.html</ref> Look at the gap between the chuck base and the drill, and you should see this spindle. Measure its diameter. |
#Buy a chuck removal wedge. This is a cheap, two-armed wedge. Choose one with a gap between the two arms larger than the spindle diameter, but as close to it in size as possible. | #Buy a chuck removal wedge. This is a cheap, two-armed wedge. Choose one with a gap between the two arms larger than the spindle diameter, but as close to it in size as possible. | ||
#*If you're in a hurry, skip to the end of this section for another method. | #*If you're in a hurry, skip to the end of this section for another method. | ||
#Insert the wedge between the chuck and the drill. Position the two arms of the wedge around the spindle in this gap. | #Insert the wedge between the chuck and the drill. Position the two arms of the wedge around the spindle in this gap. | ||
#Hammer the wedge in. Hammer the thick end of the wedge until the chuck pops off the drill. | #Hammer the wedge in. Hammer the thick end of the wedge until the chuck pops off the drill. | ||
| − | #Insert a new tapered chuck. Clean and degrease the tapered portions of the spindle and chuck. Place the chuck on the spindle and retract its jaws completely. Place a thin piece of wood over the chuck nose to protect it, then tap the chuck nose with a mallet until it fits securely onto the spindle.<ref | + | #Insert a new tapered chuck. Clean and degrease the tapered portions of the spindle and chuck. Place the chuck on the spindle and retract its jaws completely. Place a thin piece of wood over the chuck nose to protect it, then tap the chuck nose with a mallet until it fits securely onto the spindle.<ref name="rf1" /> |
| − | #Remove the entire spindle. If you do not want to go out and buy a wedge, it may be possible to remove the whole spindle instead. This will only work if the chuck has an open center, allowing you to access the spindle beneath. Here's how to do it:<ref | + | #Remove the entire spindle. If you do not want to go out and buy a wedge, it may be possible to remove the whole spindle instead. This will only work if the chuck has an open center, allowing you to access the spindle beneath. Here's how to do it:<ref name="rf3" /> |
#*Open the chuck all the way. | #*Open the chuck all the way. | ||
#*Place the chuck above a pair of vise jaws, with the spindle hanging loose beneath it. | #*Place the chuck above a pair of vise jaws, with the spindle hanging loose beneath it. | ||
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== Tips == | == Tips == | ||
| − | *Most drills follow one of two standards for chuck threading: ⅜ inch (9.5 mm) with 24 threads, or ½ inch (13 mm) with 20 threads. Verify the thread count before buying a new chuck.<ref>http://toolmonger.com/2008/05/29/change-out-the-chuck-on-your-drill/</ref> | + | *Most drills follow one of two standards for chuck threading: ⅜ inch (9.5 mm) with 24 threads, or ½ inch (13 mm) with 20 threads. Verify the thread count before buying a new chuck.<ref name="rf4">http://toolmonger.com/2008/05/29/change-out-the-chuck-on-your-drill/</ref> |
== Things You'll Need == | == Things You'll Need == | ||
