Instructions Parts Viscount I 3000 Pump Model 221080, Series A With a Severe–Duty Displacement Pump* 1000 psi (7 MPa, 69 bar) Maximum Hydraulic Input Pressure 3000 psi (21 MPa, 207 bar) Maximum Fluid Outlet Pressure * Severe–Duty Displacement Pumps have an abrasionand corrosion-resistant displacement rod and cylinder. See manual 306981 for displacement pump parts and service information. US Patent No. 4,383,475 Patent 1984 Canada Brevete 1984 Foreign Patents Pending GRACO INC.ąP.O.
Table of Contents Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WARNING EQUIPMENT MISUSE HAZARD Equipment misuse can cause the equipment to rupture or malfunction and result in serious injury. INSTRUCTIONS This equipment is for professional use only. Read all instruction manuals, tags, and labels before operating the equipment. Use the equipment only for its intended purpose. If you are uncertain about usage, call your Graco distributor. Do not alter or modify this equipment. Use only genuine Graco parts and accessories. Check equipment daily.
WARNING INJECTION HAZARD Spray from the gun, hose leaks, or ruptured components can inject fluid into your body and cause extremely serious injury, including the need for amputation. Fluid splashed in the eyes or on the skin can also cause serious injury. Fluid injected into the skin might look like just a cut, but it is a serious injury. Get immediate medical attention. Do not point the gun/valve at anyone or at any part of the body. Do not put your hand or fingers over the spray tip/nozzle.
WARNING FIRE AND EXPLOSION HAZARD Improper grounding, poor ventilation, open flames or sparks can cause a hazardous condition and result in a fire or explosion and serious injury. Ground the equipment and the object being sprayed/dispensed. Refer to Grounding on page 6. If there is any static sparking or you feel an electric shock while using this equipment, stop spraying immediately. Do not use the equipment until you identify and correct the problem.
Installation Grounding To reduce the risk of static sparking, ground the pump, object being sprayed , and all spray/dispensing equipment used or located in the spray/dispensing area. Check your local electrical code for detailed grounding instructions for your area and type of equipment. Be sure to ground all of this spray/dispensing equipment. 1. Pump: loosen the grounding lug locknut (W) and washer (X). Insert one end of a 1.
Installation R HYDRAULIC OUTLET 7/8-14 UNF-2A 37 (M) FLARE P HYDRAULIC INLET 3/4 UNF–2A 37_ (M) FLARE E F H J D G C M K L N Q A B 3/4 npt(m) FLUID INLET KEY A Fluid Hose to Gun B Fluid Drain Valve C Suction Hose D Hydraulic Return Line E F G H Supply Line Shutoff Valve Pressure Gauge Flow Control Valve Pressure Reducing Valve J K L M Accumulator Drain Line Hydraulic Supply Line Hydraulic Power Supply N P Q R Ground Wire Wet cup Check Valve Return Line Shutoff Valve Fig.
Operation Pressure Relief Procedure WARNING INJECTION HAZARD Fluid under high pressure can be injected through the skin and cause serious injury. To reduce the risk of an injury from injection, splashing fluid, or moving parts, follow the Pressure Relief Procedure whenever you: are instructed to relieve the pressure, stop spraying/dispensing, check or service any of the system equipment, or install or clean the spray tip/nozzle.
Operation Fill the displacement pump wet-cup (S) 1/3 full with Graco Throat Seal Liquid or a compatible solvent, to prevent fluid from drying on the displacement rod or damaging the packings. See Fig. 3. S 3. Slowly open the flow control valve. 4. Use the lowest pressure needed to get good fluid flow or atomization. Higher pressures increase tip wear and pump wear. In a direct supply system, the pump will start when the gun or valve is opened, and stall when it is closed.
Maintenance Hydraulic leaking at the reciprocator fittings. All of the fittings (7, 8 and 10) going into the upper and lower cylinder caps are self–sealing and have replaceable o–rings (24, 25). See Parts, page 13. If you experience any leaking at these fittings, tighten them. If the leaking persists, remove the fitting and replace the worn o–ring. Check the tightness of the packing nut weekly. Always follow the Pressure Relief Procedure on page 8 before adjusting it.
Troubleshooting WARNING To reduce the risk of serious bodily injury, including fluid injection, injury from moving parts, and splashing in the eyes or on the skin, always follow the Pressure Relief Procedure on page 8 whenever you shut off the pump, check, service, clean or repair any part of the system. 1. Stop pump immediately if it is running too fast; check fluid supply. If empty, refill and reprime the pump; eliminate all air from system. Or flush the pump and store with mineral spirits in it. 2.
Service NOTE: Clean all parts of the pump as you disassemble them and inspect them for wear or damage. Replace parts as necessary. Use a high grade, lithium–base lubricant when lubrication is specified. Use Loctite Grade CV thread sealant when thread sealant is specified. 1 Torque to 20–30 ft–lb (27–41 N.m) 2 Torque to 29–31 ft–lb (39–42 N.m) Removing the Displacement Pump (See Fig. 4) 1. Flush the pump if possible. Follow the Pressure Relief Procedure on page 8.
Parts Model 221080 Viscount I 3000 Pump Series A, Stubby Length Ref No. Part No.
Dimensions HYDRAULIC OUTLET 3/4–14 UNF–2A 37 (M) FLARE HYDRAULIC INLET 7/8–14 UNF–2A 37 (M) FLARE 14.7" (373 mm) 29.9" (759 mm) 15.2" (386 mm) 3/8 NPT OUTLET 3/4 NPT INLET Mounting Hole Layout 4.25” (108 mm) DIA. CUTOUT TWO 5/16” (8 MM) HOLES ON 5” (127MM) DIA.
Technical Data Maximum outlet pressure . . . . . . . . . . . . . . . . . . . . . . . . . 3000 psi (21 MPa, 207 bar) Fluid delivery rate . . . . . . . . . . . . . . 5/8 gpm (3 l/min) at 2500 psi (17 MPa, 172 bar) Fluid outlet size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3/8 npt(f) Fluid inlet size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3/4 npt(m) Maximum recommended pump speed . . . . . .
Graco Standard Warranty Graco warrants all equipment manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale by an authorized Graco distributor 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.
