Difficulty
Very easy
Steps
7
Time Required
6 minutes
Sections
2
- Back Case
- 6 steps
- Shaft Lock Pin
- 1 step
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BackDremel 4000
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Introduction
What you need
Step 1
Back Case
- Start by removing the housing cap by unscrewing it.
- Next, unscrew the now exposed collet nut while holding down the shaft lock button.
- To remove the collet nut, you may need to use the small open-end wrench provided with the Dremel.
Start by removing the housing cap by unscrewing it.
Next, unscrew the now exposed collet nut while holding down the shaft lock button.
To remove the collet nut, you may need to use the small open-end wrench provided with the Dremel.
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Step 2
- Using your hands, carefully remove hanger from casing.
Using your hands, carefully remove hanger from casing.
Step 3
- Remove the brush caps (one on each side) by using a flathead screwdriver bit.
- The brush caps are spring loaded.
Remove the brush caps (one on each side) by using a flathead screwdriver bit.
The brush caps are spring loaded.
Step 4
- Using the Torx 15 screwdriver tip, remove the 5 screws (12.5 mm) that hold the casing together.
Using the Torx 15 screwdriver tip, remove the 5 screws (12.5 mm) that hold the casing together.
Step 5
- Use a plastic opening tool to gently wedge apart the hard plastic threads.
Use a plastic opening tool to gently wedge apart the hard plastic threads.
Step 6
- Use your hands to carefully remove the back casing so that none of the components fall out.
Use your hands to carefully remove the back casing so that none of the components fall out.
Step 7
Shaft Lock Pin
- 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.
- Remove the damaged shaft lock pin and spring by hand.
- Place new shaft lock pin so that the spring functions and the lock engages the rotary gear.
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.
Remove the damaged shaft lock pin and spring by hand.
Place new shaft lock pin so that the spring functions and the lock engages the rotary gear.
To reassemble your device, follow these instructions in reverse order.
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2 other people completed this guide.
Author
with 2 other contributors
John Cobb
Member since: 01/20/2016
1,569 Reputation
4 Guides authored
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Team
USF Tampa, Team 15-4, Remmell Spring 2016
Member of USF Tampa, Team 15-4, Remmell Spring 2016
USFT-REMMELL-S16S15G4
4 Members
11 Guides authored
mitchthane - Oct 27, 2017
Reply
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!
Randy Martin - Nov 15, 2020
three years later and I came to the same conclusion: DUH