User manual GRACO FF-1600 17942-1

[. . . ] Model FF-1600 Proportioning Unit Operating Manual 17942-1 September 1, 2004 Issue 8 GUSMER CORPORATION ® One Gusmer Drive Lakewood, New Jersey, USA 08701-8055 Toll Free 1-800-367-4767 (USA & Canada) Phone: (732) 370-9000 Fax: (732) 905-8968 Copyright 2004, GUSMER CORPORATION ® http://www. gusmer. com NOTICE: This manual contains important information about your GUSMER equipment. Read and retain for future reference. Model FF-1600 Proportioning Unit NOTICE: The equipment described in this technical manual must only be operated or serviced by properly trained individuals, thoroughly familiar with the operating instructions and limitations of the equipment. Call: 1-800-FOR-GSMR (1-800-367-4767) for the name and telephone number of your local distributor. NOTICE: All statements, information and data given herein are believed to be accurate and reliable but are presented without guarantee, warranty or responsibility of any kind expressed or implied. Statements or suggestions concerning possible use of GUSMER equipment are made without representation or warranty that any such use is free of patent infringement, and are not recommendations to infringe any patent. [. . . ] ALTHOUGH IT IS A RUGGEDLY BUILT ASSEMBLY, IT WILL NOT WITHSTAND REPEATED ABUSE. DO NOT TO CRUSH THE HOSE OR SUBJECT IT TO SEVERE BENDING IN THE AREA WHERE THE THERMOCOUPLE IS LOCATED. Temperature Sensing Unit (TSU) c) Connect the ground wire on the gun hose to the ground point on the TSU. d) Connect the heated hose assemblies to the TSU, taking care not to cross-thread or over-tighten the fittings, thereby ensuring a leak-proof chemical connection. To ensure a secure electrical connection, place the protective electrical isolator boot over each plug and tape together. Cut the isolator in half crosswise and secure the two pieces in place between the hydraulic fittings. g) Connect and tighten the air hoses. Secure the connection in place with the cable tie provided; failure to do so will cause a disruption in the hose heat system should the connectors separate. Install the optional hose scuff jacket, if used, over the hose lengths. Connect the coupling block to the gun whip hose and make sure that the manual valves are closed. (See the gun operating manual. ) Manual hose heat units only: To achieve the most accurate temperature reading, insert the hose thermometer through the sponge in the 10-ft gun hose so that the stem follows the twist of the hoses and lies between the butyl inner hose and the outer insulation. Choose a location where the thermometer is inserted easily through the sponge without excessive force and close to the gun so that the operator can read it while spraying. 17942-1, Issue 8 20 Operating Manual Initial Machine Setup Air Purge Before using the equipment, it is necessary to purge the entire chemical system of air and mineral oil left over from the functional testing of the equipment at the factory. With the resin and isocyanate transfer pumps in their respective drums and the A and R-inlet supply valves closed, pressurize the transfer pumps. (The white pilot light should be ON. ) Adjust both air pressure regulators to zero. Adjust both the air pressure regulators clockwise until the pumps begin to move (approximately 15-psi air pressure). When the pumps reach the top of their stroke, turn the pump switch to OFF. This will allow access to the pump lubricant cup on the isocyanate pump. Fill the cup to about 1/4inch from the top with Gusmer pump lubricant (see Figure 15). Hold the coupling block with the A- and Rports over separate containers and open both manual valves. 3. If necessary, gradually adjust both the air pressure regulators clockwise to start the proportioning pumps moving slowly. Please dispose of waste chemicals in accordance with applicable local, state, and federal codes. 10. Allow material to flow out of the coupling block until all spitting of air stops and all traces of residual material have disappeared. Close the manual valves and flush any residual chemical from the outside of the coupling block (see gun operating manual). Slowly increase the air pressure and check all fittings for signs of hydraulic and chemical leakage. [. . . ] Thoroughly flush the screen screw, the retainer ring, and the screen with gun cleaner, and shake them dry. Flush the cavity in the pump base with gun cleaner and wipe the cavity clean, using caution not to push foreign matter into the ball seat. Install the screen screw assembly into the pump base by inserting the screen screw with the threaded portion sliding along the top cavity. Reconnect the transfer pump air supply and open the material inlet supply valve. [. . . ]