To do this you will need the Ultimat Futura & Flexo Plate Cutter undercarriage >

Tools required: 

• Posi screwdriver 
• 3mm Allen (hex) key 
• Worn scouring pad 
• Cleaning cloth 
• Petroleum jelly (Vaseline) 

What to do 

• Remove both blade cartridges 
• Depress the bevel blade holder to reveal two Allen (hex) screws that fix the cutting head to the undercarriage plate.  Using a 3mm Allen (hex) key remove both screws and free the cutting head from the undercarriage, this may be a little tight and require a small amount of physical force. 
• Raise the cutter bar fully using the black handle. 
• Rotate the cutter bar to reveal two posi-screws fixing the small aluminium block to the cutter bar, supporting the cutter bar remove both screws. 
• Lower the cutter bar back onto the base, hold the cutter bar to the base plate and lift the black handle to free the block. 
• Lift the black handle just enough to clear the top of the end stop, slide off both the end stop and the undercarriage. 
• Use the opportunity to clean and lubricate the two guide bars.  Using a worn scouring pad with a small amount of petroleum jelly rub the two guide bars to remove any debris and stains, wipe with a clean cloth and finally apply a very thin smear of petroleum jelly 
• Slide the new undercarriage onto the end of the cutter bar, the third track roller will need a firm push with the palm of your hand, hand protection is wise in case you slip. 
• Replace the end stop and refix the two posi-screws. 
• Replace the cutting head making sure the two screws have fully pulled the cutting head onto the undercarriage by checking there are no gaps between them at each end of the cutting head