1997 Chevrolet S10 Pickup Owner's Manual - Page 226

Getting under a vehicle whenit is jacked up is dangerous. I the vehicle slipsoff the jack, f you could be badly injured orkilled. Never get under a vehicle when is supported only bya jack. it I 1 NOTICE: Raising your vehicle withthe jack improperly positioned can damage the vehicle and even make the vehicle fall. To help avoidpersonal injury and vehicle damage, be sureto fit the jack 18t head into the proper location beforeraising your vehicle. 4. Raise the vehicle turning the jack handle by clockwise. Raise the vehicle far enough the off ground so there is enough room for the spare tire to fit. 5. Remove all the wheel nuts and take off the flat-tire;