1995 GMC Yukon Owner's Manual - Page 223

Power rake-off (PTO) NOTICE: If you have a PTO thatwill exceed 35 horsepower installed on your vehicle, it could damage the transfer case or transmission. make sure that it When havinga PTO installed, on your vehicle, will not exceed 35 horsepower. Before using a power take-off, refer to the manufacturer's or installer's instructions. NOTICE: Using a PTO while operating inone place before vehicle has the reached normal operating temperature can damage the transfer the case or transmission. If you will be using PTO while up operating in one place,drive and warm the vehicle before using the PTO. To engage a power take-off 1. Set the parkingbrake. 2. Shift thetransmission into NEUTpAL (N). 3. Hold the clutch pedal down and engage the power take-off. NOTICE: Using a PTO for more than four hours without driving your vehicle can damage the transfercase or transmission. If using a PTO formore than four hours without driving your vehicle, drive.your vehicle for awhile to allow the transfer case and transmission to cool. If you are goingto drive the vehicle, shift the transmission into the gear you want. Then shift transfer case into the range want (if you the you have four-wheel drive), apply the regular brakes release the and parking brake. l I 4. Release the clutch (and the regular brakes) as you normally would. When you release the clutch, power take-off will start. the 4-35