User manual GRACO NXT HIGH-FLO 4-BALL PUMPS PARTS LIST

[. . . ] Instructions - Parts List NXT® High-Flo® 4-Ball Pumps 3A0538C ENG Air-powered pumps for low pressure, high volume circulation of finishing materials. Do not use for flushing or purging lines with caustics, acids, abrasive line strippers, and other similar fluids. Important Safety Instructions Read all warnings and instructions in this manual. US Patent Pending TI15596a NXT High-Flo Pump with 2000cc 4-Ball Lower TI15605a NXT High-Flo Pump with 4000cc 4-Ball Lower II 2 G Contents Models . [. . . ] Connect the fluid supply line (C) from the mix tank shutoff valve (D) to the pump. NOTE: If your pump has DataTrak, see your separate NXT air motor manual for DataTrak instructions. Units with runaway protection only: enable the prime/flush function by pushing the prime/flush button on the DataTrak. Slowly turn pump air regulator (L) clockwise, increasing pressure until pump starts. Cycle pump slowly until all air is pushed out and pump and hoses are fully primed. Stop the Pump at the Bottom of Its Stroke Relieve the pressure when you stop the pump for any reason. NOTICE Failure to stop the pump at the bottom of its stroke allows fluid to dry on the piston rod, which can damage the throat packings and the TSL pump piston seal when the pump is restarted. Shutdown Follow Pressure Relief Procedure, page 11. See Flushing on page 12. 3A0538C 11 Maintenance Maintenance Preventive Maintenance Schedule The operating conditions of your particular system determine how often maintenance is required. Establish a preventive maintenance schedule by recording when and what kind of maintenance is needed, and then determine a regular schedule for checking your system. Your maintenance schedule should include the following: Stall Test Perform a stall test periodically to ensure the piston seal is in good working condition and prevent system overpressurization: Close the fluid shutoff valve (D) closest to the pump on the downstroke and be sure that the pump stalls. Close the fluid shutoff valve (D) closest to the pump on the upstroke and be sure that the pump stalls. NOTICE Do not allow the pump to run quickly for a long period of time as this may damage the packings. NOTICE Failure to stop the pump at the bottom of its stroke allows fluid to dry on the piston rod, which can damage the throat packings and the TSL pump piston seal when the pump is restarted. Flushing · Flush before changing colors, before fluid can dry in the equipment, at the end of the day, before storing, and before repairing equipment. Flush with a fluid that is compatible with the fluid being dispensed and the equipment wetted parts. · · Air Line Filter Drain and clean as necessary. Mix Tank Volume Do not let the mix tank run dry. When the tank is empty, the pump demands more power as it tries to suck in some fluid. This causes the pump to run too fast, which can seriously damage the pump. 12 3A0538C Maintenance Changing the TSL Check the condition of the TSL and the level in the reservoir every week, minimum. 206995 Throat Seal Liquid (TSL) carries residue from the pump rod into the reservoir. Discoloration of the TSL fluid is to be expected during normal operation. After some time the TSL will thicken and darken, and must be replaced. Thick, dirty TSL will not pump through the lines and will harden in the pump wet-cup. How long TSL lasts depends on which chemicals are used, how much is used, what pressure, and condition of the pump seal and rod. A drop in the level of TSL in the reservoir indicates that the throat packings are starting to wear. Add TSL to the reservoir and keep the level above the Minimum fill line. [. . . ] 3400cc NXT Air Motor, 1500cc Lower (JX45XX) CYCLES PER MIN. psi (MPa, bar) 500 (3. 5, 35) 450 (3. 1, 31) 0 5 10 15 20 24 28 32 80 (2. 24) 70 (1. 96) SCFM (m3/min. ) psi (MPa, bar) 350 (2. 4, 24) 300 (2. 1, 21) 0 4 3400cc NXT Air Motor, 2000cc Lower (JX35XX) CYCLES PER MIN. 8 11 14 17 21 SCFM (m3/min. ) 24 60 (1. 68) 50 (1. 4) A FLUID PRESSURE FLUID PRESSURE 400 (2. 8, 28) 350 (2. 4, 24) 300 (2. 1, 21) 250 (1. 7, 17) 200 (1. 4, 14) 150 (1. 0, 10) 100 (0. 7, 7) 50 (0. 3, 3) 0 0 A 60 (1. 68) 250 (1. 7, 17) 200 (1. 4, 14) 150 (1. 0, 10) 100 (0. 7, 7) 50 (0. 3, 3) 0 0 AIR FLOW B A C B C 30 (0. 84) 20 (0. 56) 10 (0. 28) 40 (1. 12) C A B C 30 (0. 84) 20 (0. 56) 10 (0. 28) 0 (0. 0) 2. 0 4. 0 6. 0 8. 0 10. 0 12. 0 14. 0 (7. 0) (15. 0) (22. 5) (30. 0) (37. 9) (45. 4) (53. 0) 0 2. 0 4. 0 6. 0 8. 0 10. 0 12. 0 14. 0 (7. 0) (15. 0) (22. 5) (30. 0) (37. 9) (45. 4) (53. 0) FLUID FLOW IN GPM (LPM) FLUID FLOW IN GPM (LPM) 3400cc NXT Air Motor, 3000cc Lower (JX23XX) psi (MPa, bar) 0 250 (1. 7, 17) 3400cc NXT Air Motor, 4000cc Lower (JX17XX) CYCLES PER MIN. psi (MPa, bar) 0 180 (1. 2, 12) 5 9 14 19 24 28 SCFM (m3/min. ) 70 (1. 96) CYCLES PER MIN. 6 13 19 25 32 FLUID PRESSURE 150 (1. 0, 10) 100 (0. 7, 7) 50 (0. 3, 3) 0 0 B A C B C 50 (1. 4) 40 (1. 12) 30 (0. 84) 20 (0. 56) 10 (0. 28) 0 30. 0 (114) AIR FLOW B B 30 (0. 84) 60 (0. 4, 4) C C 10 (0. 28) 15. 0 (57) 0 20. 0 25. 0 30. 0 (76) (95) (114) 0 0 5. 0 (19) 10. 0 (38) 5. 0 (19) 10. 0 (38) 15. 0 (57) 20. 0 (76) 25. 0 (95) FLUID FLOW IN GPM (LPM) FLUID FLOW IN GPM (LPM) 28 3A0538C AIR FLOW 200 (1. 4, 14) FLUID PRESSURE A SCFM 3 38 (m /min. ) 80 (2. 24) 70 (1. 96) 60 (1. 68) A A 120 (0. 8, 8) 50 (1. 4) AIR FLOW B 50 (1. 4) 40 (1. 12) Performance Charts NOTE: See Models on page 3 for your pump part number. The Performance Charts Key on page 27 explains how to read the charts. NXT 6500 with 3000cc Lower Pumps (JX44XX) psi (MPa, bar) 450 (3. 10, 31. 0) 400 (2. 75, 27. 5) 350 (2. 41, 24. 1) 300 (2. 06, 20. 6) 200 A A 180 160 B B 140 120 100 Air Flow (scfm) Fluid Pressure 250 (1. 72, 17. 2) 200 (1. 37, 137) 150 (1. 03, 10. 3) 100 (0. 68, 68) 50 (0. 34, 3. 4) 0 10 (37. 8) 20 (75. 7) 30 (113. 5) 40 (151. 4) C C 80 60 40 20 Fluid Flow in gpm (lpm) NXT 6500 with 4000cc Lower Pumps (JX33XX) psi (MPa, bar) 350 (2. 41, 24. 1) 180 A 300 (2. 06, 20. 6) A 160 140 250 (1. 72, 17. 2) Air Flow (scfm) B Fluid Pressure 200 (1. 37, 137) 120 B 100 80 150 (1. 03, 10. 3) C 60 100 (0. 68, 68) C 50 (0. 34, 3. 4) 40 20 0 10 (37. 8) 20 (75. 7) 30 (113. 5) 40 (151. 4) 50 (189. 2) Fluid Flow in gpm (lpm) 3A0538C 29 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. [. . . ]