Jim Davenport
02-21-2006, 2:36 PM
The knives on my jet jointer finally got too dull. I just got a new set from Global tooling.
Today I had some time to change them out. The Jet has springs to support the knives. I've figured out an easy method to change them. I have a line scribed on the fence indicating top dead center of the rotor. I removed the guard, then I removed the old blades, cleaned everything up with mineral spirits. I have a pair of "V-blocks", I use on the mill. with a little bit of weight, these keep the new knives level with the out feed table. I reinstall the knife, rotate it until it's lined up with the scribed line on the fence. I clamp the belt, and sheave to keep anything from moving. I use the weighted V-blocks to push down on the knife, level to the outfeed table. Carefully tighten the gibb locking bolts, unlcamp the belt. Carefully rotate the rotor and check clearance. Repeat for the other two knives. make test cuts, and adjust the outfeed table if necessary.
I'm sure someone has a better method, but this works pretty good for me.
"BE SURE TO UNPLUG THE JOINTER PRIOR TO WORKING ON IT!!!"
Now I have to figure out the jointer blade jig for the new Tormek and sharpen the old blades
Today I had some time to change them out. The Jet has springs to support the knives. I've figured out an easy method to change them. I have a line scribed on the fence indicating top dead center of the rotor. I removed the guard, then I removed the old blades, cleaned everything up with mineral spirits. I have a pair of "V-blocks", I use on the mill. with a little bit of weight, these keep the new knives level with the out feed table. I reinstall the knife, rotate it until it's lined up with the scribed line on the fence. I clamp the belt, and sheave to keep anything from moving. I use the weighted V-blocks to push down on the knife, level to the outfeed table. Carefully tighten the gibb locking bolts, unlcamp the belt. Carefully rotate the rotor and check clearance. Repeat for the other two knives. make test cuts, and adjust the outfeed table if necessary.
I'm sure someone has a better method, but this works pretty good for me.
"BE SURE TO UNPLUG THE JOINTER PRIOR TO WORKING ON IT!!!"
Now I have to figure out the jointer blade jig for the new Tormek and sharpen the old blades