Installation Instructions for Most Curved Shaft Trimmers

Remove Bottom Cover, Spool and Spring

Remove the bottom cover. Some trimmers have tabs that you push towards the head to open it up. On some others you unscrew the bump knob. Remove the spool, any remaining line and the spring. Leave the spool housing on (top that's attached to the trimmer) . This stops the cup from sliding all the way down the shaft.

If:

• The original head of your trimmer is a fixed line then follow the Fixed Line instructions.
• If you have a Weedeater brand trimmer or if after removing the spool there is a clip instead of a threaded shaft then follow the Straight shaft instructions.

Install the Spacer Cup Provided in the Kit

Slide the spacer cup over the shaft, close side facing out. This will take care of the space inside the spool housing while giving the GrassGator a flat surface to sit against.

Find the Correct Fastener

The GrassGator kit comes with a pack of 7 nuts and 2 bolts. Most curved trimmers have a shaft that's threaded on the inside (female). Very few have a shaft that is threaded on the outside (like the picture on Step 2). If the shaft of your trimmer is threaded on the inside then find the bolt from the kit that fits the shaft. If the shaft is threaded on the outside then find the nut that fits the shaft. Most curved shafts require a regular right hand threaded fastener but in very rare cases, a left hand thread nut or bolt is needed. Once you find the correct nut or bolt, set it aside.

If:

• None of the nuts or bolts fit the shaft of your trimmer try them again but this time screwing them to the left.
• If they still don't fit then you can go to the Brands Section to check which bolt is needed for your particular model and request one by e-mail or by calling 1-800-210-9949.

• If you have a GrassGator 3630 then stop here and follow these instructions.
• If you have a GrassGator 7800 then stop here and follow these instructions.
• If you have a GrassGator 4750 then stop here and follow these instructions.
• If you have a GrassGator 12200 then stop here and follow these instructions.

Otherwise continue with the next step below.

Drop the Nut or Bolt in the GrassGator Head

First locate the bottom of the GrassGator head. The bottom of the GrassGator head is the side with the hex shaped recessed hole. This is the side that should be facing the ground once the GrassGator head is in use. Very important: The hex shaped hole on the GrassGator head will NOT go over the hex on the top of the shaft. The hex hole should be facing the ground plus, if you can see the hex nut on the top of the shaft then it means you removed the spool housing. Go back to Step 1 and make sure you leave the spool housing on.

• On bladed units (3600,4600,4680) and models 4700 and 5620, the bottom is the flat round side, not the triangle side.

• On Fixed line heads like the 8010 and 5600, the bottom is the flat round side, not the side that sticks up.

Screw the GrassGator head on

The GrassGator head will work as a wrench. You may have to start the nut or bolt with your fingers but once the head of the bolt or the nut is inside the hex shaped hole on the GrassGator head you can then keep turning the GrassGator head until it's tight. There should be no up and down play at all. The GrassGator head should be tight against the spacer cup. Any up and down play may damage the GrassGator head or your trimmer. It is ok if the shaft only gets a few threads on the nut. The GrassGator head is self tightening and it will get a few more threads upon use. If there's no up and down play then, you are done and ready to use your new GrassGator!

If:

• There are a few inches of play, go back to step 1 and make sure you left the spool housing on.
• There's about an inch of play, go back to step 2 and make sure you installed the spacer cup.
• If there's only a little bit of play, you can slide the washer between the spacer cup and the GrassGator head.
• If there's still too much play then you can go to the Brands Section to check if there are any special instructions for your particular model. You can also call 1-800-210-9949 or e-mail us with any questions. Please remember to include the make and model of your trimmer along with your phone number in case we need to ask you some questions. Pictures are always helpful. .