2 EE'S WERE LYING UNDERNEATH A CAT 930 TIGHTENING DOWN THE BOLTS TO THE CENTER PIN. ONE WAS SPRAYING WD-40 WITH A SPRAY BOTTLE AND THE OTHER WAS USING AN AIR RATCHET. THE EE USING THE AIR RATC HET WAS ACCIDENTLY SPRAYED IN THE FACE WITH THE WD-40. THE LUBRICANT ENTERED EE'S EYES.