11/25/2023 0 Comments Remove chuck bosch hammer drillBe careful not to scratch, nick, or dent the bores that the jaws slide in or the jaws themselves. I used a combination of paper towels, pipe cleaners, an old toothbrush for the threads on the jaws, some 400 grit wet/dry sandpaper to remove some surface rust, and a small screwdriver to scrape away some thick grease. Once the sleeve is removed and bearings contained, remove the split nut and slide the jaws out of their bores. I used a magnetic parts tray under the vise to catch all the bearings that tried to escape. ![]() Hold the machine firmly, press the spindle lock button 24 and loosen the keyless chuck 2 by turning the Allen key 25 in. Use a suitable method of catching all of these tiny bearings. Replacing the Drill Chuck (PSB 650 RE/PSB 6500 RE/PSB 650 RA) Removing the Drill Chuck (see figure L) Clamp the short end of an Allen key 25 into the keyless chuck 2. NOTE: there are a bunch of little tiny ball bearings inside this sleeve. With the jaws pointing downward, drive the chuck body out of the sleeve. Open the bench vise just wide enough so only the edges of the sleeve rest on the vise. Unfortunately, the photo I took for this didn't turn out so I'll try to explain. To get the jaws all the way out, there is a bearing race/sleeve that needs to be removed. Find a suitable replacement to fit your drill. The common threads on the drill are either 1/2-20 for 1/2" capacity chucks or 3/8-24 for 1/4" capacity chucks. If you need to replace the drill chuck, you can stop here and go buy a new chuck. Hopefully yours comes off much easier than mine did. Hold the drill firmly to the bench and hit the allen wrench downward using sharp blows with a hammer. Lay the drill down on it's side with the chuck hanging over the edge of a bench as pictured. The chuck will be a "lefty loosey" to remove. Once the screw is out, grab the largest allen wrench you have and tighten the short end into the chuck. This screw may possibly have a thread locker (locktite) on it - mine did. ![]() The normal saying "lefty loosey" is wrong when it comes to reverse threaded hardware. This means that to loosen the screw, you'll turn it to the right. Mine was reverse threaded (left hand threaded), and most others will likely be reverse threaded as well. How to replace drill chuck bosch GJ Random 1.27K subscribers Subscribe 78 Share 22K views 3 years ago You can do it Just do it Show more Show more Comments are turned off. ![]() This could be any type of screw - phillips, allen, flat, star, hex, etc. Look into the bore of the chuck to see if there's a screw. Start by fully retracting the jaws into the chuck. Workbench.First step is to remove the chuck from the drill. Replacing the Drill Chuck (PSB 650 RE/PSB 6500 RE/PSB 650 RA)Ĭlamp the short end of an Allen key 25 into the If pressing the button has no effect it probably means that it has been held down while the drill was in operation, resulting in damage to the detents/recesses, rounding-over their edges and preventing the locking pin from being able to lock the spindle. I have the similar PSB 680 as a frills-free basic back-up drill. This is why this tool is such good value. Note that this can catch you out if you are unfamiliar with the tool, or have been using other tools with keyless-chucks which don't need this button. You should notice that the button resists being depressed until you turn the chuck a little - it is basically a locking pin that drops into one of a set of recesses around the spindle mechanism. You have to press this button down to lock the spindle while turning the outer part of the chuck to loosen or tighten it's grip in the drill bit. If I recall correctly, the PSB 650 is one where there is a large rectangular button on the top, just behind the chuck. ![]() The chuck won't tighten to hold any tool.
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