Symptoms of Malfunction. The failure of the trimmer head to spin when you engage the throttle isn't necessarily a sign of a broken shaft -- it could also be a broken clutch. When the shaft is broken, however, you'll notice excessive vibrations in the shaft housing or in the handles.f you jam the trimmer head against a rock while it is spinning at full throttle, however, the shaft may sever. To get the upper part out, you may have to disassemble the shaft housing from the engine housing. To do this, disconnect the throttle cable and disconnect the ignition wires.
Blue Toe Syndrome. Blue toe syndrome, also known as Trash Foot or Purple Toe Syndrome, is caused by a blockage of the small blood vessels in the foot that reduces the flow of blood and oxygen to the tissues. It usually develops due to a problem higher up the blood stream such as an aneurysm or atherosclerosis.
Foot drop may occur if you cross your legs often. It may also happen if you have recently lost weight and are able to cross your legs again. Tight bandages, braces, or casts may cause foot drop. Athletes with hard leg muscles could develop foot drop. Foot drop may be genetic (passed on to you by your parents). You may have foot drop if you have had a stroke, diabetes, or a mass blocking your nerves. In some cases, the cause is unknown.