If the mow ball on your walk-behind trimmer falls off, you will likely need a new mow ball bolt. The mow ball bolt is a special fastener that has a stepped-washer (held captive within the bolt). It is specifically designed to secure the mow ball to the trimmer.
Let's get started.
REMOVING THE MOW BALL BOLT 1. Remove the mow ball bolt.
a. Secure the mow ball shaft with a wrench.
b. Use a socket wrench to remove the mow ball bolt.
INSTALLING THE NEW MOW BALL BOLT
2. Install the mow ball bolt.
a. Install the mow ball onto the trimmer.
b. Thread the new mow ball bolt into the shaft.
c. Secure the mow ball bolt with the wrench and socket.