Question about Bosch 1274DVS 3" x 21" Belt Sander
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Posted on Jan 02, 2017
SOURCE: toothed belt bosch 1274 dvs
If I am correct, when holding the tool in the normal operating position there should be an oblong cover on teh left hand side nea the back of the tool. It should be held on with a screw. remove this cover and you can access the belt . MAKE SURE THE TOOL IS UNPLUGGED. the belt should pull off/push on with a bit of force. Turning the pulleys as you put it on will help it go on evenly. If it is too stiff, put the belt in some boiling water for a minute or two to soften it up a bit.
Posted on Nov 04, 2008
SOURCE: Bosch 3 x 21 Belt Sander
Remove the dust bag and unplug sander for now. Everywhere you see an access hole (fan area, dust port, back of sander blow thru the tool to remove lodged dust that clogged the system, Also look for broken belt pieces in the back of sander. Then while running (remove belt) blow again thru all the ports to try and reomve as much contamination as possible. When finished you can feel to see if air coming from dust bag port, it not you still have a clog that might need more work. If I have clarified your request would you please rate this response accordingly and thank you.
Posted on Sep 12, 2009
SOURCE: My Bosch 1276 DVS belt
that is possible, but was the tool operating properly first?? unplug tool and check the cord for any breaks, then what I would do is clean the tool as good as possible with compressed air and if you can remove the brush caps do so and check the condition of the spring and clean the area. DO NOT sand the brushes but look across the face to see if both look worn evenly. If you have a volt ohms meter check from the plug to the brush holder with the switch on brushes removed to see if you have continuity and if not then I would have to think the switch
Posted on Feb 12, 2011
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on Feb 02, 2014 | Bosch Belt Sander Drive Belt For Pbs 7a,...
You need to adjust the tracking knob which is by the front handle that looks like a triangle head screw. Make sure the belt tension leaver is tight and the belt has enough tension on it. Quickly press and release the start switch and note the centering of the belt. It should be in the center of the bottom platen. If it is not, adjust the tracking knob and bump the switch again. If the belt is going in the wrong direction turn the knob the other direction. Once you are close the center of the platen, press the power switch to turn the unit on and lock the trigger. Firmly hold the unit vertically from the front handle. Fine adjust the tension knob to center the belt and make sure the belt is not hitting the case which will cause damage. You should be able to use the belt sander without the belt slipping off. Let the sander do the work, do not push down and limit the side to side motion. If the belt will not stay on then the belt is too large or the torsion spring needs to be adjusted to applying more tension on the belt and drive roller.
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