Dremel 4000 Shaft Lock Pin Replacement
John Cobb and 2 other contributors
Last updated on May 11, 2016
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8 comments on steps, 3 guide comments.
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Introduction
Go to step 1 ↓This is likely the simplest repair possible for this device. Simply access the shaft lock pin after opening the case.
What you need
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Start by removing the housing cap by unscrewing it.
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Next, unscrew the now exposed collet nut while holding down the shaft lock button.
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Remove the brush caps (one on each side) by using a flathead screwdriver bit.
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Using the Torx 15 screwdriver tip, remove the 5 screws (12.5 mm) that hold the casing together.
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Use your hands to carefully remove the back casing so that none of the components fall out.
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If the shaft lock pin is not engaging the rotary gear, or if the spring is missing or damaged, it will need to be replaced.
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Remove the damaged shaft lock pin and spring by hand.
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To reassemble your device, follow these instructions in reverse order.
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3 other people completed this guide.
Team
USF Tampa, Team 15-4, Remmell Spring 2016 Member of USF Tampa, Team 15-4, Remmell Spring 2016
USFT-REMMELL-S16S15G4
4 Members
60 Guides authored
3 Guide Comments
These instructions are idiotic! I want to replace the shaft lock pin because it is not WORKING. Step 1 instructs me to use the shaft lock pin to remove the exposed collet nut. The reason I am changing the shaft lock pin is because it won’t hold the shaft for loosening the collet nut. DUH!
three years later and I came to the same conclusion: DUH
