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Discussion for the Bosch PR20EVSK (3601F0A710) Colt Variable-Speed Palm Router
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Question: Speed Varies From High To Low
When I start the router, it can rev up and then slow down without touching the speed control.
Reply: Speed Varies From High To Low
That it.Replace your speed controller.Hope that helps.Good luck.
Question: Palm Router End Play At The Coll...
My colt has developed noticible, mostly side to side, end play. I can feel it move when putting a bit in. Also starts making some noise if run for extended periods. Assume this is lower bearing going out. Would just a bearing cure it or is it more likely the whole flange is worn so bearing moves around in it? I suppose another possiblity is that the lower end of the armature shaft is worn so it doesn't fit in the bearing correctly? What has been the most frequent cause of end play?
Reply: Palm Router End Play At The Coll...
Generally its a case of the bearings wearing out.Don't run it like that as the high RPM of the tool could cause catastrophic failure of the bearing ball retainers damaging the armature and field.Also while your at it you should replace the upper armature bearings.Hope this helps.Good luck.
Question: Pr20evs Loses Power
would a faulty speed control switch cause loss of power
Reply: Pr20evs Loses Power
I would first check your 2610008121 brushes to make sure that they are not worn down to far to make good contact with armature. Then check both the 2610008120 armature and the 2610008119 field for burnt windings or a burnt insulation smell. If those are all okay then, I am pretty sure it will be the 1607233174 speed control that is your problem.
Reply: Pr20evs Loses Power
Thanks for the reply WJA. Sorry I took so long to get back to you. On the Bosch Colt the brushes are fairly new. I'm hoping the problem is not the armature or the field as that will pretty much junk this unit. The speed control switch is doable. Is it possible to remove the speed control switch or even just bypass it, so that the unit runs as a single speed router. And if it is possible, is there a wiring diagram to guide me thru it.
Thanks for your help
Question: BOSCH COLT PR20EVS Palm Router
Hey all, new here and need help. I have the Bosch variable speed palm router and to be honest I probably should have been using my big router, but none the less, I got it hot. (Not smoking, but felt pretty hot and quit) I ordered new brushes and a bearing that was talking from here and it still wont work. I cant see or smell anything obvious to go after. I did continuity check on main on-off switch and its ok but on the speed control its getting about 60v output on all speeds. I am not sure how to properly test it or any of the other components. Any ideas or help on a systematic electrical test so I know what parts I need would be appreciated.
Thanks, Tom Lilly.