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View Full Version : Bosch 3912 CMS Arbor / Spindle lock not working well



Gaines McMillan
01-14-2008, 1:49 PM
On my Bosch 3912 CMS, the arbor / spindle lock will not stay engaged when changing the blade. When I press and hold the arbor lock and turn the wrench clockwise, arbor lock slips. It is like the end of the arbor lock pin is rounded and jumps out when pressure is applied. If the arbor lock is pressed extremely hard ( two hands and somebody else turns the wrench), the lock will hold.
Has anybody had similar problems ?