I am not sure what type of sound that you are hearing when the dryer starts to spin. If you are hearing a grinding or scraping sound when the dryer starts, you could have sand in the rear ball hitch/bearing component. The first image below shows the procedure for opening up the dryer cabinet and accessing this component.
Unplug the dryer
to disconnect electrical power before accessing internal components. If you take the top panel off of the dryer, you may be able to manually spin the drum and verify that the noise is coming from the ball hitch area. If it is, then you will likely need to replace the ball hitch and bearing. There is a kit (part 5303281153 shown in the second image) that contains all of the parts needed to complete this repair. You can order this kit from the
website. This should fix your problem if you have sand in the ball hitch/bearing.
If the sound isn't coming from the center portion of the rear wall of the drum, you could have sand in the felt seals or the idler pulley. Replacing these parts may be necessary. You may also need to check under the baffle vanes inside the dryer drum. With the top panel off (and the dryer unplugged), you can remove the screws that secure the vanes to the dryer drum.
Sand will not normally damage your dryer immediately depending on the location and amount of sand present. In the ball hitch/bearing area, it will eventually deteriorate the bearing and the dryer will begin squeaking. This may also result in more friction when the drum is rotating. This situation could shorten the life of the drive motor and belt. Sand in the felt seals could cause similar problems. It could also cause clothes to get caught at the front and/or back of the drum when the felt seals deteriorate. Stains on clothing could result from sand in the felt seals. It is best to disassemble the dryer and try to eliminate sand from the components if possible.
If you do not feel confident repairing this problem yourself, then you can have it repaired at your home by a Sears technician. Here is a link for the website:
Sears Home Services