User manual GRACO H-20

[. . . ] H-20/35 Pro VR Proportioning Unit Operating Manual 66942-VR-1 September 2, 2004 Issue 1 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. H-20/35 Pro VR 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. For technical service, call your local distributor. 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. [. . . ] 9/2/04 25 H-20/35 Pro VR Proportioning Unit IMPORTANT: The orifices in the dispensing gun and the output of each chemical pump will establish the dispensing pressure. If the orifices are fixed, increase the output for a higher dispensing pressure or decrease for a lower dispensing pressure. Cycles per Pump 120 Pump Output lbs. (kg) 1. 56 (. 71) 3. 12 (1. 42) 4. 68 (2. 13) 6. 24 (2. 84) 7. 80 (3. 55) 9. 36 (4. 26) 10. 92 (4. 97) 12. 48 (5. 68) 14. 04 (6. 39) 15. 60 (7. 1) 17. 16 (7. 81) 80 Pump Output lbs. (kg) 1. 04 (. 47) 2. 08 (. 94) 3. 12 (1. 41) 4. 16 (1. 88) 5. 20 (2. 35) 6. 24 (2. 82) 7. 28 (3. 29) 8. 32 (3. 76) 9. 36 (4. 23) 10. 40 (4. 7) 11. 44 (5. 17) 5 10 15 20 25 30 35 40 45 50 55 12. Turn the pump mode switch to RUN. NOTE: Both the locking nut and caps contain o-ring seals. 14. Tighten the lock nuts on the hydraulic pump flow control adjustments and replace the caps. If all steps have been followed and no problems have been encountered, the Pro VR should now be ready for operation. 26 66942-VR-1, Issue 1 Operating Manual Operation OPERATION Daily Start-up Procedure IMPORTANT: The Daily Start-up Procedure describes normal operation, assumes that all calibrations have been properly executed, and that the heating system is not up to operating temperature. Check the condition of the hydraulic drive and isocyanate lubrication systems and service as required. Change the pump lubricant when it shows signs of color change. Determine that the supply system is at the proper temperature as recommended by the chemical system supplier, the individual chemicals are properly mixed within their drums/day tanks, and the moisture protection system is properly set for operation. Check the inlet screens and service as required. Turn on the main air supply to the transfer pumps and drums/day tanks. If the red emergency stop switch has been activated, reset it by turning the knob clockwise. The white main power light will light up. The light within the switch and the temperature controllers will light up. 8. WARNING: TO PREVENT OVERHEATING THE HOSES AND CREATING HOT SPOTS WITHIN THEM, UNCOIL THE HEATED HOSES BEFORE TURNING ON THE HOSE HEATER SWITCH. 9. Turn ON the green hose heater switch. The light within the switch will light up and the temperature controller should begin to cycle toward its set point. If the set point needs to be changed, see Digital Temperature Controllers on page 24. WARNING: PRIMARY HEATING IS ALMOST INSTANTANEOUS. TO PREVENT DAMAGE DUE TO OVERHEATING, DO NOT TURN ON THE PRIMARY HEATERS UNTIL REQUIRED FOR OPERATION. TURN OFF THE PRIMARY HEATERS DURING BREAKS EXCEEDING ONE HALF-HOUR. 10. Turn ON the green A- and R- heater switches. The lights within the switches will light up and the temperature controllers should begin to cycle toward their set points. [. . . ] To service the hydraulic drive system, proceed as follows: 1. Perform the Daily Shut-down Procedures and allow the hydraulic fluid to cool. Thoroughly clean the hydraulic reservoir top, the access cover plate, and the components in the area of the cover plate. This will ensure that no foreign matter will enter the reservoir when removing the cover plate. [. . . ]