User manual GRACO H-25 311299E

[. . . ] Operation 311299E Hydraulic, Heated, Plural Component Proportioner For spraying polyurethane foam and polyurea coatings. Not for use in explosive atmospheres. Important Safety Instructions Read all warnings and instructions in this manual. Save these instructions. See page 3 for model information, including maximum working pressure. Model H-XP2 with 15. 3 kW Heater Model H-25 with 8 kW Heater ti7706a ti7705a Contents Models . [. . . ] RT b. Spray gun: connect whip hose ground wire to FTS, page 19. Do not disconnect wire or spray without whip hose. ST RB LR c. Fluid supply containers: follow your local code. ti7738a d. Object being sprayed: follow your local code. b. Fill with fresh lubricant. Thread the reservoir onto the cap assembly and place it in the bracket (RB). e. Solvent pails used when flushing: follow your local code. Use only metal pails, which are conductive, placed on a grounded surface. Do not place pail on a nonconductive surface, such as paper or cardboard, which interrupts grounding continuity. c. Push the larger diameter supply tube (ST) approximately 1/3 of the way into the reservoir. d. Push the smaller diameter return tube (RT) into the reservoir until it reaches the bottom. f. To maintain grounding continuity when flushing or relieving pressure, hold a metal part of spray gun firmly to the side of a grounded metal pail, then trigger gun. Important: The return tube (RT) must reach the bottom of the reservoir, to ensure that isocyanate crystals will settle to the bottom and not be siphoned into the supply tube (ST) and returned to the pump. 13. Check hydraulic fluid level Hydraulic reservoir is filled at the factory. Check fluid level before operating the first time, and weekly thereafter. See Maintenance, page 33. e. The lubrication system is ready for operation. No priming is required. 311299E 21 Startup Startup WARNING c. d. Check level and condition of ISO lube daily, page 34. Turn both PRESSURE RELIEF/SPRAY valves (SA, SB) to SPRAY. SA SB Do not operate Reactor without all covers and shrouds in place. e. 1. Fluid Temperature Sensor (FTS) Calibration Calibrate the FTS ONLY at initial startup (the first time the unit is operated) and any time the hose length changes. ti7739a a. f. Before turning on the unit, ensure all hoses and cables are properly connected. To ensure that the FTS in the hose is at the same temperature as the heaters, keep heat off and store the hose FTS near the machine for several minutes. Start feed pumps. c. While holding down the temperature unit button (Fahrenheit - "F" or Celsius "C") turn the Reactor main power ON. Hold the temperature unit button until temperature is shown on the display. The fluid temperature sensor is now correctly calibrated. ti7736a Do not mix components A and B during startup. Always provide two grounded waste containers to keep component A and component B fluids separate. h. 1. Load fluid with feed pumps The Reactor is tested with oil at the factory. Flush out the oil with a compatible solvent before spraying. See page 35. Use feed pumps to load system. Hold gun fluid manifold over two grounded waste containers. Open fluid valves A and B until clean, air-free fluid comes from valves. [. . . ] (4. 5 liters) Citgo A/W Hydraulic Oil, ISO Grade 46 87. 8 dB(A) 80. 2 dB(A) Units with 8 kW Heaters: 498 lb (226 kg) Units with 15. 3 kW Heaters: 525 lb (238 kg) Aluminum, stainless steel, zinc-plated carbon steel, brass, carbide, chrome, fluoroelastomer, PTFE, ultra-high molecular weight polyethylene, chemically resistant o-rings All other brand names or marks are used for identification purposes and are trademarks of their respective owners. 311299E 39 Graco Standard Warranty Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco's written recommendations. This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of non-Graco component parts. [. . . ]