PTO Pulley Malfunction. When the PTO pulley malfunctions in a John Deere mower, it's likely that the mower blades won't respond when you flick the PTO switch to the On position. The blades may refuse to engage or may fail to disengage.Either way, the malfunction poses a safety concern, as you must be able to control the blades effectively.TO Pulley Malfunction. When the PTO pulley malfunctions in a John Deere mower, it's likely that the mower blades won't respond when you flick the PTO switch to the On position. The blades may refuse to engage or may fail to disengage.
Optometry Schools and Colleges. Doctors of Optometry (O.D.s/optometrists) are the independent primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye.
Optometrist: A practitioner who provides primary eye and vision care, performs eye examinations to detect vision problems, and prescribes corrective lenses to correct those problems. Some optometrists also make and fit eyeglasses, but many leave that job to opticians. An optometrist is a doctor of optometry (OD), not an MD. When an optometrist detects eye disease, the patient may be referred instead to an ophthalmologist, a physician who specializes in evaluating and treating diseases of the eye.