D. Tensioning the Blade on all Models
NEVER tension your blade with the engine running. Your mill is shipped to you without
any tension on the blade. If there is tension left on the blade for a period of time, it can cause
flat spots on the band wheel belt. This can cause vibration and the blade to fall off the
wheel. Always remember to de-tension your blade when you are done sawing for the day.
1 - For all of our mills, make sure blade is flush with the back of the band wheel or shive
(Blade could have moved in shipping process).
2 - To tension or loosen the blade, (see figure G. on page #11)
3 - Turn the adjusting nut, clockwise until 30-35 pounds of torque is achieved.
The recommended tool for this is a torque wrench. By hand, rotate blade 3-4 full
revolutions; this centers the blade on the wheels.
4 - With gloves on, pull up on the blade at the center guard. Allow for no more than
a ¼" movement up or down on the blade.
5 - Check that guides are not so tight they cause the blade to heat up.
If this occurs readjust guides.
6 - Perform a simple test call the "Flutter" test. Put the guards on and then run the engine
at full RPM's (be sure the blade is not in a cut during this test) and watch the blade
under the blade guard. The blade must run straight, if it does not, shut the engine
down and apply more tension. Keep in mind that over tensioning will also cause the
blade to flutter. You should have attained proper tension around 30-35 pounds.
7- A tensioned blade should come off the bottom of the band wheel and run straight
across to the other band wheel, so there is NO sag in the blade between the two
wheels.
C. Setting Head on Track (if applicable) Ground Models
Once your track is level, you are ready to set the head on the track. Once again, be sure
the area is still free and clear of obstructions. You will want the head to roll freely
down the track.
1 - Install the head with operator's side on the same side as the moveable dog.
The discharge side is the side with the squaring pins.
2 - Raise the head 3 inches and roll from one end to the other. The head should roll
smoothly along the track. If the head "thumps" when it passes over the track joint,
check to make sure the tracks are level. Re-level the track and try rolling the head
again. Also be sure to watch the track as you roll the head, if the track moves down
or up you will need to use shims to support the track in that area.
Correct head placement; Operators side is on side
with the scale stick and hand winch.
Squaring arm on left adjustable dog on right.
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