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

[. . . ] Instructions - Parts List Viscount® High-Flo® 4-Ball Pumps 3A0537B ENG Hydraulic-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. See page 3 for model information, including maximum working pressure and approvals. [. . . ] 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. · · Mix Tank Volume Don't 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. Hydraulic Power Supply Check Carefully follow the hydraulic power supply manufacturer's recommendations on reservoir and filter cleaning, and periodic changes of hydraulic fluid. 12 3A0537B 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. If pumped material bypasses the throat packings and enters the TSL reservoir, replace the packings. To change the TSL: 1. Shut off the pump. To avoid the buildup of static charge, do not rub the plastic bottle with a dry cloth while it is attached to the pump. If check valves are not sealing and dirty TSL is getting into the wet-cup, replace the check valves (VI, VO). Fill the reservoir to the Maximum fill line with Throat Seal Liquid (TSL). Each time pump rod reaches bottom of stroke, check that some TSL is pumped from reservoir through wet-cup and back to reservoir. VO Maximum Fill Line Minimum Fill Line VI Z TI15853a TI15857a FIG. Cutaway of TSL Reservoir, and Fill Lines 3A0537B 13 Troubleshooting Troubleshooting Problem Pump output low on both strokes. Cause Restricted hydraulic supply lines. Solution Clear any obstructions; be sure all shutoff valves are open; increase pressure, but do not exceed maximum working pressure. Worn piston packing. Excessive hydraulic fluid supply pressure See motor manual. [. . . ] 10 Motor Oil) 3A0537B 27 Performance Charts NOTE: See Models on page 3 for your pump part number. The Performance Charts Key on page 26 explains how to read the charts. Viscount II Motor, 2000cc Lower CYCLES PER MIN. 0 450 (3. 1, 31) 4 8 12 16 20 24 28 32 36 8. 0 (30. 4) 7. 0 (26. 6) 6. 0 (22. 8) 5. 0 (19. 0) 250 (1. 7, 17) 4. 0 (15. 2) 200 (1. 4, 14) 150 (1. 0, 10) 100 (0. 7, 7) 50 (0. 3, 3) 0 (0, 0) 0. 0 (0. 0) 2. 0 (7. 6) 1. 0 (3. 8) 0 2. 0 4. 0 6. 0 8. 0 10. 0 12. 0 14. 0 16. 0 18. 0 (7. 0) (15. 0) (22. 5) (30. 0) (37. 9) (45. 4) (53. 0) (60. 6) (68. 1) GPM (l/min) FLUID PRESSURE, psi (MPa, bar) 400 (2. 8, 28) 350 (2. 4, 24) A B HYDRAULIC OIL CONSUMPTION 300 (2. 1, 21) C 3. 0 (11. 4) FLUID FLOW, gpm (lpm) 28 3A0537B Performance Charts NOTE: See Models on page 3 for your pump part number. The Performance Charts Key on page 26 explains how to read the charts. Viscount II Motor, 3000cc Lower Viscount II Motor, 4000cc Lower 3A0537B 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. [. . . ]