Instructions – Parts List ALUMINUM AND STAINLESS STEEL Huskyt 1590 Air-Operated Diaphragm Pumps 308441ZAE EN 1.5–inch AODD pump for fluid transfer applications. For professional use only. See Models on page 2 for a list of pump models and descriptions. 120 psi (0.8 MPa, 8 bar) Maximum Fluid Working Pressure 120 psi (0.8 MPa, 8 bar) Maximum Air Input Pressure Important Safety Instructions Read all warnings and instructions in this manual. Save these instructions. Model No.
Table of Contents Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Safety Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . .
Symbols Warning Symbol Caution Symbol WARNING CAUTION This symbol alerts you to the possibility of serious injury or death if you do not follow the instructions. This symbol alerts you to the possibility of damage to or destruction of equipment if you do not follow the instructions. 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.
WARNING TOXIC FLUID HAZARD Hazardous fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin, inhaled, or swallowed. Know the specific hazards of the fluid you are using. Store hazardous fluid in an approved container. Dispose of hazardous fluid according to all local, state and national guidelines. Always wear protective eyewear, gloves, clothing and respirator as recommended by the fluid and solvent manufacturer.
Installation General Information Grounding WARNING The typical installation shown in Fig. 2 is only a guide for selecting and installing system components. Contact your Graco distributor for assistance in planning a system to suit your needs. FIRE AND EXPLOSION HAZARD This pump must be grounded. Before operating the pump, ground the system as explained below. Also, read the section FIRE AND EXPLOSION HAZARD, on page 4. Always use Genuine Graco Parts and Accessories.
Installation c. Mountings CAUTION The pump exhaust air may contain contaminants. Ventilate to a remote area if the contaminants could affect your fluid supply. See Air Exhaust Ventilation on page 9. 1. Be sure the mounting surface can support the weight of the pump, hoses, and accessories, as well as the stress caused during operation. 2. For all mountings, be sure the pump is bolted directly to the mounting surface. 3.
Installation 1. Use grounded fluid hoses (L). The pump fluid outlet (S) is 1–1/2 in. npt(f). Screw the fluid fitting into the pump outlet securely. Fluid Outlet Line WARNING A fluid drain valve (J) is required to relieve pressure in the hose if it is plugged. The drain valve reduces the risk of serious injury, including splashing in the eyes or on the skin, or contamination from hazardous fluids when relieving pressure. Install the valve close to the pump fluid outlet. See Fig. 2. 2.
Installation Changing the Orientation of the Fluid Inlet and Outlet Ports The pump is shipped with the fluid inlet (R) and outlet (S) ports facing the same direction. See Fig. 3. To change the orientation of the inlet and/or outlet port: 1. Remove the screws (106) holding the inlet (102) and/or outlet (103) manifold to the covers (101). 2. Reverse the manifold and reattach. Install the screws, and torque according to the torque notes in Fig. 3.
Installation The air exhaust port is 3/4 npt(f). Do not restrict the air exhaust port. Excessive exhaust restriction can cause erratic pump operation. Air Exhaust Ventilation WARNING If the muffler (P) is installed directly to the air exhaust port, apply PTFE thread tape or anti–seize thread lubricant to the muffler threads before assembly.
Operation Pressure Relief Procedure WARNING PRESSURIZED EQUIPMENT HAZARD The equipment stays pressurized until pressure is manually relieved. To reduce the risk of serious injury from pressurized fluid, accidental spray from the gun or splashing fluid, follow this procedure whenever you: Are instructed to relieve pressure, Stop pumping, Check, clean or service any system equipment, Install or clean fluid nozzles. 1. Shut off the air to the pump.
Maintenance Lubrication Flushing and Storage The air valve is designed to operate unlubricated, however if lubrication is desired, every 500 hours of operation (or monthly) remove the hose from the pump air inlet and add two drops of machine oil to the air inlet. WARNING To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 10. CAUTION Do not over-lubricate the pump.
Troubleshooting WARNING To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 10. Relieve the pressure before checking or servicing the equipment. Check all possible problems and causes before disassembling the pump. PROBLEM CAUSE SOLUTION Pump cycles at stall or fails to hold pressure at stall. Worn check valve balls (301), seats (201) or o-rings (202). Replace. See page 16.
Troubleshooting PROBLEM CAUSE SOLUTION Fluid in exhaust air. Diaphragm ruptured. Replace. See pages 17–19. Loose diaphragm shaft bolt (107). Tighten or replace. See pages 17–19. Damaged o-ring (108). Replace. See pages 17–19. Worn air valve block (7), o-ring (6), plate (8), pilot block (18), u-cups (10), or pilot pin o-rings (17). Repair or replace. See pages 14–15. Worn shaft seals (402). Replace. See pages 17–19. Pump exhausts excessive air at stall. Pump leaks air externally.
Service Repairing the Air Valve 3 Tools Required 2 2 Torque wrench 4 Torx (T20) screwdriver or 7 mm (9/32 in.) socket wrench Needle-nose pliers O-ring pick Lithium base grease NOTE: Air Valve Repair Kits 236273 (aluminum center housing models) and 255061 (sst center housing models) are available. Refer to page 23. Parts included in the kit are marked with a symbol, for example (4 ). Use all the parts in the kit for the best results.
Service Reassembly 1 Insert narrow end first. 2 Grease. 3 Install with lips facing narrow end of piston (11). 4 Insert wide end first. 10 2 2. On aluminum center housing models, install the valve plate seal (9 ) into the groove at the bottom of the valve cavity. The rounded side of the seal must face down into the groove. See Fig. 9. 3 11 1. If you removed the bearings (12, 15), install new ones as explained on page 20. Reassemble the fluid section. 3.
Service Ball Check Valve Repair 1 Tools Required Torque wrench 13 mm socket wrench O-ring pick Apply medium-strength (blue) Loctite or equivalent to the threads. Torque to 120–150 in-lb (14–17 N m). See Torque Sequence, page 28. 2 Arrow (A) must point toward outlet manifold (103). 3 Not used on some models. 4 Beveled seating surface must face ball (301). Disassembly NOTE: A Fluid Section Repair Kit is available. Refer to page 23 to order the correct kit for your pump.
Service Diaphragm Repair WARNING Tools Required To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 10. Torque wrench 13 mm socket wrench 15 mm socket wrench (aluminum models) or 1 in. socket wrench (stainless steel models) 19 mm open–end wrench O-ring pick 1. Relieve the pressure. 2. Remove the manifolds and disassemble the ball check valves as explained on page 16.
Service 4. Loosen but do not remove the diaphragm shaft bolts (107), using a 15 mm socket wrench (1 in. on stainless steel models) on both bolts. NOTE: This step does not apply to pumps with overmolded diaphragms. a. Install the o-ring (108*) on the shaft bolt (107). 5. Unscrew one bolt from the diaphragm shaft (24) and remove the o-ring (108), fluid side diaphragm plate (105), PTFE diaphragm (403, used on PTFE models only), diaphragm (401), and air side diaphragm plate (104). See Fig. 12. c.
Service 19 402* 1 105 2 107 5 403* 3 1 24 4 104 7 6 1 401* 3 03274A 03275A Cutaway View, with Diaphragms in Place Cutaway View, with Diaphragms Removed 24 4 104 7 401* 3 403* 3 5 105 2 1 24 4 108* 107 8 1 Lips face out of housing (1). 2 Rounded side faces diaphragm (401). 3 Air Side must face center housing (1). 4 Grease. 5 Used on pumps with PTFE diaphragms only. 6 7 Apply medium-strength (blue) Loctite or equivalent.
Service Bearing and Air Gasket Removal Tools Required Torque wrench 10 mm socket wrench Bearing puller O-ring pick Press, or block and mallet Disassembly NOTE: Do not remove undamaged bearings. WARNING To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 10. 1. Relieve the pressure. 2. Remove the manifolds and disassemble the ball check valves as explained on page 16. 3.
Service 12 1 Insert bearings tapered end first. 2 Press-fit bearings flush with surface of center housing (1). 3 Apply medium-strength (blue) Loctite or equivalent. Torque to 130–150 in-lb (15–17 N m). 4 Muffler not included on Model No. 253485. 1 2 03277 1 15 1 16 19 2 Detail of Air Valve Bearings 2 1 M H 23 22 25 3 4 03278B Fig.
Pump Matrix Husky 1590 Aluminum and Stainless Steel Pumps, Series A Your Model No. is marked on the pump’s serial plate. To determine the Model No. of your pump from the following matrix, select the six digits which describe your pump, working from left to right. The first digit is always D, designating Husky diaphragm pumps. The remaining five digits define the materials of construction.
Repair Kit Matrix For Husky 1590 Aluminum and Stainless Steel Pumps, Series A Repair Kits may be ordered separately. To repair the air valve, order Part No. 236273 for aluminum center housing models or Part No. 255061 for stainless steel center housing models (see page 24). Parts included in the Air Valve Repair Kit are marked with a symbol in the parts list, for example (3). To repair your pump, select the six digits which describe your pump from the following matrix, working from left to right.
Parts Drawing 2 3 4 11 5 10 6 7 8 17 16 18 3 9 1 16 17 12 14 } 10 11 22 110 106 23 20 103 15 25 111 1 301* 1 402* 19 201* 202* 13 } 24 1 106 Aluminum Model Shown 104 1 Not used on some models. 2 Used on PTFE models only. 3 Used on stainless steel models only. 101 401* 1 403* } These parts are unique to remote piloted air motor, DC––––, DT–––– * These parts are included in the Pump Repair Kit, which may be purchased separately.
Parts Air Motor Parts List (Matrix Column 2) Ref. Digit No. Part No. Description Qty Ref. Digit No. B 1 188838 HOUSING, center; aluminum 1 C 2 188854 COVER, air valve; aluminum 1 3 116344 SCREW, mach, hex flange hd; M5 x 0.8; 12 mm (0.47 in.) 9 T Part No.
Parts Fluid Section Parts List (Matrix Column 3) Ref. Digit No. Part No. Description Qty Ref. Digit No. Part No.
Parts Seat Parts List (Matrix Column 4) Qty Ref. Digit No. Part No.
Torque Sequence Always follow torque sequence when instructed to torque fasteners. 1. Left/Right Fluid Covers Torque bolts to 190–220 in–lb (22–25 N m). 1 15 18 17 16 3 8 5 9 10 TOP VIEW 7 6 4 2 SIDE VIEW 2. Inlet Manifold Torque bolts to 120–150 in–lb (14–17 N m). 11 14 13 12 BOTTOM VIEW 28 3. Outlet Manifold Torque bolts to 120–150 in–lb (14–17 N m).
Notes 308441 29
Dimensions FRONT VIEW PUMP MOUNTING HOLE PATTERN B L 1/2 npt(f) Air Inlet 3/4 npt(f) Air Exhaust D F G H C J D M 1 Muffler not included on Model No. 253485. 1 E Dimensions B, C, F, G, H and M can vary by up to 1/4 in. (6.3 mm) depending on the seat and diaphragm material fitted in the pump. SIDE VIEW 5.23 in. (132.5 mm) 1.5 npt(f) Outlet Port 45° 1 K 1.5 npt(f) Inlet Port 6.0 in. (152.5 mm) 10.46 in. (265.
Dimensions Aluminum Center Aluminum Cover Aluminum Center SST Cover SST Center Aluminum Cover SST Center SST Cover Dimension in. mm in. mm in. mm in. mm B 7.7 197 8.3 210 7.7 197 8.3 210 C 10.8 273 10.8 273 10.8 273 10.8 273 D 6.0 152 6.0 152 6.0 152 6.0 152 E 15.9 404 15.9 403 15.9 404 15.9 403 F 16.8 427 16.3 414 16.8 427 16.3 414 G 18.3 465 17.8 451 18.3 465 17.8 451 H 19.6 497 19.0 482 19.6 497 19.0 482 J 1.5 38 1.4 37 1.
Technical Data Maximum fluid working pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 psi (0.8 MPa, 8 bar) Air pressure operating range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20–120 psi (0.14 –0.8 MPa, 1.4–8 bar) Maximum air consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Performance Chart Example of Finding Pump Air Consumption and Air Pressure at a Specific Fluid Delivery and Discharge Head: To supply 60 gpm (227 liters) fluid flow (horizontal scale) at 40 psi (0.28 MPa, 2.8 bar) discharge head pressure (vertical scale) requires approximately 50 scfm (1.40 m /min) air consumption at 70 psi (0.49 MPa, 4.9 bar) inlet air pressure. feet (meters) 280 (85.3) 240 (73.2) 200 (61.0) 160 (48.8) psi (MPa, bar) 120 (0.8, 8) A 100 (0.7, 7.
Graco Warranties Graco Standard Husky Pump 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 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 five years from the date of sale, repair or replace any part of the equipment determined by Graco to be defective.
