Supplemental
Installing Pivoting Jig on existing Mill Drill:
The Mill Drill jig was designed not only to be used as a new complete unit but also it
can be used as an upgrade to most any existing milling machine. Because of its low profile it
can be added to most any milling machine with very few modifications. We found that in
some cases it is necessary to change the drill bit hold arm and the arm for the control box. If
you need these items they have been included with your new jig. If you do not need these
simply discard them? Below we have listed the sequence for changing the jig.
1.
Remove the old jig from the milling machine—saving the t-nuts.
2.
Place your new Mill Drill jig on the mill table and align the t-nuts with the mounting
holes in the new jig.
3.
Start the round head allen screws thru the jig plate and into the t-nuts.
4.
Align the jig with the center of the mill table and even with sides and tighten the 4 allen
screws.
5.
If needed change the support arms for the drill bit plate and the control box. If your
machine does not have a control box that can be remounted Ebonite does have one
you can purchase. This will also work for those machines that had no control box at all.
6.
Loosen the lug bolts on the right hand side of the machine, as you will need to raise the
head of the machine. If your machine has the black cap that covers the top of the post
you will need to remove this also. To check the height you have to place a bit in the
chuck of your machine and you should be able to remove the bit with out taking the
ball from the jig. Tip of the bit should be ¾ to 1” above the surface of the ball. Once
you have this set center the head and tighten the lug bolts.
7.
Calibrate the machine as described earlier.
8.
You should be ready to drill—follow drilling instructions as listed above.
REV A 12-2-05 28
