What are the model and serial number from under the seat?
Toro Model # XXXXX;
Ser. #(NNN) NNN-NNNN/p>
See attached link. In the lower left column you will see homeowner parts. Click on this and it will bring up another screen. Enter the model number off of your tractor. It will bring up another screen that will show you 3 years of yours. Click on the one that has the 690 serial number like yours. It will then bring up another screen and it will have a red box that says manuals. Click on this and then it will give a list of manuals. Click on the service manual and download it. It is a large pdf file with pictures and will walk you through the entire process with pictures on doing it. Let me know if you need anything else.