Graco Inc. 308639L manual

Instructions – Parts List ALUMINUM Husky t 3275 Air–Operated Diaphragm Pump 3–inch pump for fluid transfer applications. For professional use only . 120 psi (0.8 MPa, 8 bar) Maximum Incoming Air Pressure 120 psi (0.8 MPa, 8 bar) Maximum Fluid Working Pressure * Part No. DK3XXX Part No. 232505 Private–Label Aluminum 3275 Pump (See page 20.) [...]

2 308639 W arnings W arning Symbol W ARNING This symbol alerts you to the possibility of serious injury or death if you do not follow the instructions. Caution Symbol CAUTION This symbol alerts you to the possibility of damage to or destruction of equipment if you do not follow the instructions. EQUIPMENT MISUSE HAZARD Any misuse of the equipment o[...]

3 3 308639 HAZARDOUS FLUIDS Improper handling of hazardous fluids or inhaling toxic vapors can cause extremely serious injury or death from to splashing in the eyes, ingestion, or bodily contamination. Observe all the following precautions when handling known or potentially hazardous fluids. D Know what fluid you are pumping and its specific hazard[...]

4 308639 Installation General Information D The T ypical 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. D Always use genuine Graco parts and accessories. D Reference numbers and letters in parentheses refer to the cal[...]

5 5 308639 Installation KEY A Air supply hose B Bleed-type master air valve (required for pump) C Air regulator D Air line quick disconnect E Master air valve (for accessories) F Air line filter G Fluid suction hose H Fluid supply J Ball valve (for releasing collected moisture) L Fluid outlet hose N Air inlet port R Fluid inlet port S Fluid outlet [...]

6 308639 Installation Mountings CAUTION The pump exhaust air may contain contaminants. V entilate to a remote area if contaminants could affect your fluid supply . See Air Exhaust V entila - tion on page 7. D Be sure the mounting can support the weight of the pump, hoses, and accessories, as well as the stress caused during operation. D For all mou[...]

7 7 308639 Installation C hanging Manifold Orientation (See Fig. 6 on page 14) The outlet manifold (50) and inlet manifold (53) can be rotated to best suit your installation needs. The pump is shipped with the inlet and outlet facing in the same direction. 1. Remove the screws (54) from each end of the manifold (50 or 53). 2. Turn the manifold to t[...]

8 308639 Installation FC A Fig. 3 KEY A Air supply line B Bleed-type master air valve (required for pump) C Air regulator D Air Line quick disconnect E Master air valve (for accessories) F Air line filter J Ball valve (for releasing collected moisture) P Muf fler T Grounded air exhaust hose U Container for remote air exhaust E D VENTING EXHAUST AIR[...]

9 9 308639 Operation Pressure Relief Procedure W ARNING T o reduce the risk of serious injury , including splashing fluid in the eyes or on the skin, follow this procedure whenever you are instructed to relieve pressure, when you shut off the pump, and before you check, adjust, clean, move, or repair any system equipment. 1. Shut of f the air to th[...]

10 308639 Maintenance Lubrication The air valve is designed to operate unlubricated. 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. CAUTION Do not over-lubricate the pump. Excess oil is ex- hausted through the muffler , which could cont[...]

11 11 308639 T roubleshooting T o reduce the risk of serious injury , including splashing fluid in the eyes or on the skin, follow the Pressure Relief Procedure on page 9. Y ou must do this whenever this manual instructs you to relieve pressure, when you shut off the pump, and before checking, adjusting, cleaning, moving, or repairing any system eq[...]

12 308639 Service Repairing the Air V alve T ools Required D T orque wrench D 7-mm or 9/32-in. socket wrench or T orx R screwdriver T20 D Needle-nose pliers D O-ring pick D Lithium-base grease, Part No. 1 1 1920 (Lubriplate 630AA or equivalent) NOTE: Air V alve Service Kit 238765 is available. Parts included in the Air V alve Service Kit are marked[...]

13 13 308639 Service Reassembly For steps 1 to 3, see Fig. 5. 1. If you removed the bearings (8 and 17), install new ones and reassemble the fluid section as explained on page 18. 2. Grease and install the valve plate seal (12) in the groove at the bottom of the valve cavity . 3. Install the valve plate (1 1) in the cavity with the counter-bore fac[...]

14 308639 Service Ball Check V alve Repair T ools Required D T orque wrench D 15-mm socket wrench D O-ring pick NOTE: A Fluid Section Service Kit is available. See the Repair Kit Matrix on page 21 to find the correct kit for your pump. Parts included in the kit are marked with an asterisk in the Parts Drawing on page 22, for example (201*). Use all[...]

15 15 308639 Service Diaphragm Repair T ools Required D T orque wrench D 15-mm socket wrench D 15/16-in. socket wrench D 7/8 in. open–end wrench D O-ring pick D Lithium-base grease, Part No. 1 1 1920 (Lubriplate 630AA or equivalent) NOTE: A Fluid Section Service Kit is available. See the Repair Kit Matrix on page 21 to find the correct kit for yo[...]

16 308639 Service Disassembly 1. Relieve the pressure. W ARNING T o reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 9. W ARNING Some of the pump parts and assemblies are heavy . Use proper lifting equipment and techniques. 2. Remove the manifolds and disassemble [...]

17 17 308639 Service Fig. 8 1 2 3 Cutaway V iew with Diaphragms in Place Cutaway V iew with Diaphragms Removed Lips face out of housing (1). Side marked AIR SIDE must face center housing (2). Grease. T orque to 100 to 120 ft-lb (136 to 163 N S m). 4 06327 06328 52 57 13 13 15 1 14 2 1 1 14 14 52 57 303 5 3 3 3 4 4 1 1 301 2 62 62 63 64 63 63 64 063[...]

18 308639 Service Removing and Replacing Bearings and Air Gasket (See Fig. 9) T ools Required D T orque wrench D 13-mm socket wrench D Bearing puller D O-ring pick D Press, or block and mallet Disassembly NOTE: Do not remove undamaged bearings. This procedure is only for replacing bearings that are damaged. 1. Relieve the pressure. W ARNING T o red[...]

19 19 308639 Service Fig. 9 2 1 Press-fit bearings flush with surface of center housing (2). Detail of Bearings 06331 1 1 2 10 27 T orque to 19 to 21 ft-lb (26 to 28 N S m). 06330 8 17 H 18 1 1 2 through hole must be on bottom 15 1[...]

20 308639 Pump Matrix Husky 3275 Pumps, Series C Y our Model No. is marked on the pump’ s serial plate. T o determine the Model No. of your pump from the following matrix, select the six digits that describe your pump, working from left to right. The first digit is always D , designating Husky diaphragm pumps. The remaining five digits define the[...]

21 21 308639 Repair Kit Matrix For Husky 3275 Pumps, Series C Repair kits may be ordered separately . T o repair the air valve, order the Air V alve Service Kit, Part No. 238765 (see page 23). Parts included in the Air V alve Service Kit are marked with a symbol in the Air Motor Parts List , for example (3 { ). T o repair the seats, balls, and diap[...]

06316A 1 2 3 { 5 6 7 8 { 9 10 11 12 { 13 14 *15 { 16 17 19 { 18 20 { 23 27 53 56 52 57 55 58 54 54 61 102* 101* 102* 101* 201* 201* 301* 54 24 60 1 54 51 50 { Included in Air Valve Service Kit 238765, which may be purchased separately . Kit includes 2 of 1 13554. * Included in Fluid Section Service Kit. See the Repair Kit Matrix on page 21 to find [...]

23 23 308639 Parts Lists Air Motor Parts List (Matrix Column 2) Digit Ref. No. Part N o. Description Qty . K 1 190827 COVER, air; aluminum 2 2 190826 HOUSING, center; aluminum 1 3 { 1 13554 SCREW , mach, T orx R , hex flange hd; M5 x 0.8 x 16 mm (0.63”); SST 10 5 190831 COVER, valve; aluminum 1 6 240222 MAIN V A L VE; aluminum 1 7 190822 PIST ON,[...]

24 308639 Parts Lists Seat Parts List (Matrix Column 4) Digit Ref. No. Part N o. Description Qty . 3 101* 190840 SEA T ; 316 SST 4 102* 1 13449 O-RING; PTFE 4 5 101* 190837 SEA T ; TPE 4 102* 1 13449 O-RING; PTFE 4 6 101* 190836 SEA T ; Santoprene R 4 102* 1 13449 O-RING; PTFE 4 G 101* 194217 SEA T ; Geolast R 4 102* 1 13449 O-RING; PTFE 4 Ball Par[...]

25 25 308639 T orque Sequence Always follow torque sequence when instructed to torque fasteners. 1. Left/Right Fluid Cover T orque bolts to 55–60 ft–lb (75–81 N S m) SIDE VIEW 12 11 1 2 3 4 5 6 7 9 8 10 2. Inlet Manifold T orque bolts to 55–60 ft–lb (75–81 N S m) BOTT OM VIEW 14 13 16 18 15 17 3. Outlet Manifold T orque bolts to 55–60[...]

26 308639 Dimensional Drawings 7.9 in. (200 mm) O.D. 4.1 in. (104 mm) FRONT VIEW 12 in. (305 mm) 30.5 in. (774 mm) 28.6 in. (727 mm) 20.3 in. (516 mm) Fluid inlet (bottom manifold) and fluid outlet (top manifold): 3.25 in. (83 mm) dia. I.D. 24.5 in. (622.5 mm) 15.25 in. (387.5 mm) 0.185 in. (5 mm) Four 0.84 in. (21.5 mm) holes (ANSI) Eight 0.84 in.[...]

27 27 308639 Performance Charts Aluminum Husky 3275 Fluid Outlet Pressure 0 20 40 60 80 100 120 140 0 30 60 90 120 150 180 210 240 270 (1 14) (227) (568) (795) (0.14, 1.4) (0.41, 4.1) FLUID FLOW––gpm (lpm) (908) (0.7, 7) (0.8, 8) (0.98, 9.8) A at 120 psi (0.8 MPa, 8 bar) air pressure B at 100 psi (0.7 MPa, 7 bar) air pressure C at 70 psi (0.48 [...]

28 308639 Performance Charts 0 50 100 150 200 250 300 350 0 30 60 90 120 150 180 210 240 270 (1 14) (227) (568) (795) FLUID FLOW––gpm (lpm) (908) A at 120 psi (0.8 MPa, 8 bar) air pressure B at 100 psi (0.7 MPa, 7 bar) air pressure C at 70 psi (0.48 MPa, 4.8 bar) air pressure D at 40 psi (0.28 MPa, 2.8 bar) air pressure E at 20 psi (0.14 MPa, 1[...]

29 29 308639 Notes[...]

30 308639 Graco W arranties Graco Standard Husky Pump W arranty Graco warrants all equipment manufactured by Graco and beari ng its nam e 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 pe[...]