It is not recommended to turn the washer over, or on it's side. These top loaders have a direct-drive gearcase that is filled with oil. Laying the washer down can cause oil to leak from the breather hole on top of the gearcase unit.
I would recommend you check the level of the washer before doing anything else. These model washers have an auto level system on the back two feet, followed by a manual level on the front two feet. The following link explains this leveling system and how to properly level the washer:
An unlevel washer is the number one cause of off balance issues and vibration.
If you do wish to view the washer internal components, the correct way of accessing the interior is to remove the exterior washer case. This procedure is not difficult. The following link explains how:
Other causes of vibration (if the washer is level):
1. Loose suspension springs on the lower support under the drum.
2. Loose agitator bolt causing the agitator spin unbalanced.
3. Loose spanner nut under the agitator causing the wash tub to be loose.
4. Suspension pads under the drum worn out and requiring replacment.
You can view exploded view diagrams of your washer at any of the following websites to assist you with your inspection:
Refer the "Washer Base" drawing for a view of the suspension components. Refer to the "Agitator" parts list for a view of the agitator components.
If you need further assistance, please let me know. I hope you find this information helpful.