To do this you will need the Ultimat Futura end of cut assembly >

Tools required: 

• Posi screwdriver 
• Worn scouring pad 
• Cleaning cloth 
• Petroleum jelly (Vaseline) 

What to do 

• Remove both blade cartridges (for safety) 
• 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 then slide off the cutting bar.  
• 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 
• Replace the end stop and refix the two posi-screws.