VACUUM SUPPLY PORTING PROC. FOR CONNECTING ADD COMPONENTS

MODELS: 3208 AND 8.2L POWERED WITH HYDRAULIC BRAKES TO INSURE CORRECT VACUUM SUPPLY PORTING CONNECTIONS, THE RECOMMENDATIONS BELOW SHOULD BE FOLLOWED WHEN ADDITIONAL VACUUM SUPPLY REQUIREMENTS ARE TO BE MET: 1.LOCATE VACUUM SUPPLY PUMP OUTLET CONNECTIONS, REMOVE FITTINGS TO THE CHECK VALVE LEAVING THE VALVE CONNECTED TO THE PUMP. (SEE ILLUSTRATION). 2.INSTALL TEE IN PLACE OF ELBOW. 3208 CATERPILLAR INSTALLATION MAY REQUIRE FABRICATION OF A SHORT CONNECTOR TUBE WHICH CAN BE CONNECTED INTO ONE SIDE OF THE TEE. 3.ACCESSORY VACUUM CONNECTIONS CAN NOW BE MADE AT THE REMAINING TEE PORT. 4.CHECK FOR LEAKS. THE ABOVE PLUMBING PROVIDES FOR A CHECKED VACUUM SUPPLY WITHOUT THE REQUIREMENT TO SPLICE EXISTING VACUUM SUPPLY HOSES.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.