EE SLID A HYDRAULIC MOTOR WHICH WAS UNDER A SHELF TO A POSITION WHEN HE COULD LIFT IT TO A TABLE FOR EXAMINATION. THE PUMP WAS ON THE SHOP FLOOR. HE SQUATTED OVER IT AND LIFTED IT TO A WORK TA BLE. AS HE WAS LIFTING HE FELT A TEARING SENSATION & PAIN IN HIS GROIN. HE WENT TO THE DR. AND WAS TOLD THAT HE HAD A HERNIA. HE RETURNED TO WORK WITH NO HEAVY LIFTING FOR 48 HRS. RESTRICTION