8" Replacement Blades for Acu-Cutter 350 Foam Cutter. Includes a set of dual blades.
Your foam cutter has a set of two blades. One blade (longer) is the moving blade. The other blade (shorter) is the fixed blade. Under normal wear conditions, only the moving blade will need to be replaced. However if both of your blades are damaged, follow the procedure for both blades.
Blade replacement (moving blade) – most common:
- Place the saw on its side unplugged on a table in front of you.
- Notice that there are two vents near the front on the right hand side of the motor. With a thin screwdriver etc., rotate the fan until the driveshaft of the motor is in the upper position.
- Notice that there are two blades in the saw.
- Their beveled edges are on the outside and their teeth are together on the inside.
- Loosen the two screws on the blade clamp (or lift and hold up the blade clamp lever) of the motor and remove the old moving blade by lowering it down to clear the clamp and then lifting it up and out.
- When the blade is clear of the roll pin (about one inch above the base), remove the blade from the guide and place it on the outside of the guide. This action will help you avoid hitting the teeth on the black metal bracket.
- Reverse the process in paragraph #5 and replace the new moving blade so that it is on the same side as the old moving blade.
- Take care not to damage the teeth against the black metal bracket.
- Place the top of the moving blade in the blade clamp as before and be sure that it is all the way up in the blade clamp.
- Tighten the two screws securely in the blade clamp or lower the lever. Start the motor very slowly at first to make sure that everything is ok.
- Lubricate the moving blade.
- The moving blade should be occasionally lubricated with any lubricating oil. The purpose of the lubrication is to reduce heat and friction on both sides of the moving blade inside the blade guide. Failure to do this will result in excess stress on the motor and shorten its useful life.
- Stop the motor with the moving blade in the up position exposing about 1/2 inch of the blade at the top of its enclosure or blade guide.
- Apply the lubricant to both sides of the moving blade at the top of the blade guide below the blade clamp.
- The up and down motion of the moving blade will draw the oil down into the blade guide on either side of the blade.
- The blades may be sprayed frequently with a silicone spray. Silicone spray is effective when sprayed on the cutting edge of the blade to enable better penetration of the foam. As silicone residue and other debris may accumulate in the saw, you should remove the blades and clean the saw as needed.