Model 5185 is the motor. You need to look for the plaque with the model and serial number.
Yes you can have the guidance and repair manual of this very easily. If you search online, you will get many websites giving information about this issue. But there is a very professional and useful link that can provide you a whole manual for your machine. This repair manual can be used whenever you are in trouble of repairing your machine. You can connect to this link for further help and support.