User manual CHICAGO 93547

[. . . ] Always lock up tools and keep out of reach of children. Do not attempt to force a small tool or attachment to do the work of a larger industrial tool. There are certain applications for which this tool was designed. It will do the job better and more safely at the rate for which it was intended. [. . . ] If you have any of these signs get fresh air immediately. The warnings, cautions, and instructions discussed in this instruction manual cannot cover all possible conditions and situations that may occur. It must be understood by the operator that common sense and caution are factors which cannot be built into this product, but must be supplied by the operator. The brass components of this product contain lead, a chemical known to the State of California to cause birth defects (or other reproductive harm). (California Health & Safety Code 25249. 5 et seq. ) Unpacking When unpacking, check to make sure the following parts are included. Refer to the Parts List at the end of this manual. If any parts are missing or broken, please call Harbor Freight Tools at the number on the cover of this manual. Operation Warning: Before making connections and testing, place a dry chemical (Class B) fire extinguisher nearby in case of fire. Park the vehicle in a well ventilated area. If in a garage, park the car so that the exhaust pipe faces out the garage entrance. Place the transmission in Park/Neutral and set the vehicle emergency brake. For technical questions, please call 1-800-444-3353 2. SKU 93547 Page 4 Fuel Pump Pressure Test The components in this Tester Kit enable the testing of the fuel delivery pressure to the engine. Vacuum / Pressure Gauge (1) connections are made directly to the pump. Relieve the fuel line pressure from the vehicle fuel system. Refer to the vehicle manufacturer's service manual for instruction on relieving pressure from the fuel line, testing procedures and connection points, and normal fuel pump pressure readings. Disconnect the pump fuel output line at the pump. Use the various Adapters included and Rubber Hose (2) to connect the Vacuum / Pressure Gauge (1) directly to the fuel pump. Use a small amount of pipe compound or teflon tape on the connection threads to prevent leaks. Warning: Make sure all connections are tight to avoid fuel leaks. 1~10 PSIG Testing Range 4. 9. Start the engine and leave at idle speed, and immediately check for fuel leaks. If fuel leaks are found, turn engine off and fix leaks. Read the pressure off the Vacuum / Pressure Gauge (1). The chart on the following page gives the approximate correct pressure readings by vehicle. The current reading should hold for one or two minutes before going down to zero. [. . . ] With the engine off, connect the Vacuum / Pressure Gauge (1) as close as possible to the intake manifold. Use the Rubber Hose (2) and the various adapters as needed. Engines with two intake manifolds have to be tested separately. Start the engine and let it idle until the engine temperature reaches its normal operating temperature. [. . . ]