How To Replace The Plastic Blades on a PolyCut 7-3 Mowing Head | STIHL GB

In this video, we will be looking at how to change the STIHL plastic blades on a PolyCut 7-3 mowing head. Read below for a step-by-step walkthrough. Step 1: The first step to replacing the blades on your PolyCut 7-3 mowing head is to make sure the machine is switched off or the power source is disconnected. Step 2: Prop the machine up so you can easily access the mowing head. Step 3: If the plastic blades are worn on one side, you can rotate them to maximise the efficiency of the blades. Step 4: To remove or rotate the old plastic blades, grip the upper part of the head and unscrew the lower half. Undo it all the way until the bottom part of the head comes off. The black upper part will come off too. Step 5: Once the upper and lower part of the head has been removed, the plastic blades can be easily rotated or removed from the circular pins. Step 6: To put the machine back together, place the black part on top to hold everything in place and line up the hexagonal recess with the nut on the end of the drive shaft. You might find it helpful to keep your finger on the nut at the bottom whilst screwing it back on to make sure it all stays in place. Step 7: Once it has made contact with the thread, continue to screw it up until it is screwed on firmly, then do a final check to make sure all the blades are moving freely and nothing is caught up. For more how-to videos, just take a look on the STIHL GB YouTube channel. Timestamps 00:00 - Intro 0:07 - Disconnect power...