|Hi Gang! I thought that it might be useful to post some tips on getting long life and the best possible service out of the #225-01 Flex Shaft Attachment. So here goes! (225=Flex Shaft. Tool=Your DREMEL TOOL , OK?)
1. UNPACKING AND INITIAL INSTALLATION.
Included in the package with the 225 is a silver hex nut called a "drive cap" . You do not want to lose this, as it is the "key" to making the flex shaft work properly. Get a 35mm film container or similar, label it "Drive Cap 225" and put it in your DREMEL case.
To install the 225, first, remove the collet and the collet nut from the DREMEL Tool and set them aside. Then, unscrew the nose cap from the Tool. Set this aside as well.
Take the drive cap and put it on the collet thread of the Tool. Run it down, finger-tight, and then, using the DREMEL wrench, just give it a tweak to the left, just to snug it up.
Insert the drive cable of the 225 into the drive cap. Then attach the black collar of the flex shaft to the thread where the nose cap of the tool used to be. There is no need to reef on either the drive cap or the collar like Godzilla! :-)
The collet and the collet nut from the Tool now go into the handpiece of the 225. Put the nose cap of your Tool in the same safe place as you will later put your drive cap. You will want to be able to find this if you ever want to take the 225 off.
Hang the Tool up so that the flex shaft is vertical. Set the Tool to its lowest possible speed and turn it on. Let it run on its own for 1 to 2 minutes. This will work out the kinks and distribute the factory lubricant along the sheath of the flex shaft.
After this is done, you are ready to "rock and roll" up to 35,000 rpm.
2. NORMAL OPERATION
The 225 works at its best when operating at either a vertical or an horizontal position. Yes, the shaft is flexible, but it is not infinitely so. Over-bending it will either cause handpiece bearing failure or breakage of the drive cable. Heat in the handpiece and/or at the tool/shaft junction may indicate over-bending of the shaft ar a need for lubrication. (see 3 below)
As a general rule, I work with my tool overhead (vertical) and with the coupling (Tool-225) at head-height, whether standing or seated. This allows a gentle transition from the vertical to the horizontal as I work.
I usually work standing: better control, less dust in da face.
For vertical applications, there are the DREMEL 220-01 WORK STATION or the 2222 FLEX SHAFT TOOL HOLDER . The Work Station will also work in horizontal mode.
3. LUBRICATION AND GENERAL MAINTENANCE
The Flex Shaft needs to be lubricated after 7-10 hours of use. In my case, this means every week, as I use mine a lot. Here's what I do:
Go to your local auto supply store and buy for about $1.00 a small tube of green lithium high-temp wheel bearing grease. You do not need much, trust me.
Hang the tool up . Pull the drive core out of the 225.
Take a blob of grease about as big as the ball of your little finger and wipe it all the way down the drive core.
Flip the core over, end for end, and then run it in as in 1 above.
Long may you run!
"For almost every problem,
there is a DREMEL solution"
"When all else fails, read the instructions."