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� E ui ment Set-U q p p ' 1. A pump capable of spraying 3000 psi is required. The Graco 733, Graco 833 or the Speedflow Hydra-M is recommended. Contact a TBS Technical Representative for assistance with equipment purchases. ' 2. The diameter and length of the interlinking suction side (low pressure) lines are crucial to ensuring a good flow of material to and from the pump. Larger diameters and shorter lengths ' of all interlinking lines decrease the flow resistance and optimize product transfer. The siphon line from the truck tank or drum dip tube to the heat exchanger should not be longer than six feet if possible, and a 2-inch or 1.5-inch diameter is recommended. The line from the heat exchanger ' to the pump should have a minimum inside diameter of 1 '/4-inch and be no longer than 4 feet. All connections should be as tight as possible to prevent air from entering the lines. ' 3. Make sure the lower piston ball check is on the high setting. Consult your equipment manual for adjustment procedures. ' 4. A single-pass heat exchanger connected to an engine's coolant system is the best way to heat the TUFF-N-DRI Membrane to the recommended application temperature of 110°F (43°C) � to 130°F (54°C) at the spray tip. One heat exchanger that produces good heat transfer is the API Basco Model 500. Contact a TBS Technical Representative for assistance with equipment purchases. All heat exchangers must have a ball valve attached to the inlet side � of the coolant hose. The applicator must turn off the flow of coolant to the heat exchanger when the truck is driving to and from jobsites and when the spray pump is not in use. The flow of coolant is to be used only when circulating or spraying TUFF-N-DRI Membrane. , 5. The spray hose must be a "high-pressure" type, capable of withstanding 4000 psi. A maximum of 'h-inch diameter line is recommended for the first 100 feet of hose. It can then be reduced do ' 3/8-inch for the next 100 feet. No more than 200 feet of hose is recommended. 6. Many different airless spray guns can be used to spray TUFF-N-DRI. The most widely used ' brand is Graco, and the Graco Silver Plus gun is the most popular for polymer-modified asphalt emulsion spraying. You may also use the Graco Heavy Duty Texture gun or the Graco Flex Plus gun. The Graco Contractor II line of guns can also be used if the handle filters are removed. , E ui ment Troubleshootin q p 9 , If you lose pressure while spraying: 1. Check suction side lines for air leaks. 2. Reduce the heat to the heat exchanger. , 3. Re-prime pump. 4. Inspect the piston ball check and packings. 5. Check heat exchanger for blockage. � 6. If procedures do not work, contact a TBS Technical Representative or pump manufacturer Operational Maintenance , Consult your pump service manual for maintenance scheduling or replacing of vital parts (piston packings, ball check, etc.). ' 1. Many different solvents can be used to flush the system, but mineral spirits are recommended because it acts as a lubricant for the pump packings. ,