Graco D75 manual

ACET AL, POL YPROPYLENE, AND PVDF Husky t 1040 Air-Operated Diaphragm Pumps Acetal Model Shown 120 psi (0.8 MPa, 8 bar) Maximum Fluid Working Pressure 120 psi (0.8 MPa, 8 bar) Maximum Air Input Pressure *Model No. D71 Acetal Pumps ( certified) *Model No. D81 Acetal Pumps, Remote ( certified) *Model No. D72 Polypropylene Pumps *Model No. D82 Polypro[...]

2 308443 T able of Contents Safety W arnings 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operation 1 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maintenance 13 . . . . . . . . . . . . . . . . . . . . . . . . . . .[...]

308443 3 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. ?[...]

4 308443 Installation General Information  The T ypical Installation shown in Fig. 2 is only a guide for selecting and installing system compo- nents. Contact your Graco distributor for assistance in planning a system to suit your needs.  Always use Genuine Graco Parts and Accessories.  Reference numbers and letters in parentheses refer to[...]

308443 5 Installation Grounding W ARNING FIRE AND EXPLOSION HAZARD This pump must be grounded. Before operating the pump, ground the system as explained below . Also read the sec- tion FIRE AND EXPLOSION HAZARD on page 3. The acetal pump contains stainless steel fibers which make the wetted parts conductive. Attaching the ground wire to the groundi[...]

6 308443 Installation Air Line W ARNING A bleed-type master air valve (B) is required in your system to relieve air trapped between this valve and the pump. T rapped air can cause the pump to cycle unexpectedly , which could result in serious injury , including splashing in the eyes or on the skin, injury from moving parts, or contamination from ha[...]

308443 7 Installation Mountings CAUTION The pump exhaust air may contain contaminants. V entilate to a remote area if the contaminants could af fect your fluid supply . See Air Exhaust V entilation on page 10. 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[...]

8 308443 Installation Flange Connections The fluid inlet and outlet ports are 1” raised face flanges. Connect 1” flanged plastic pipe to the pump as follows. Y ou will need:  T orque wrench  Adjustable wrench  One 4.25” diameter , 1/8” thick PTFE gasket, with four 0.62 diameter holes and a 1.15” diameter center  Four 1/2” x [...]

308443 9 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. 4. T o change the orientation of the inlet and/or outlet port: 1. Remove the screws (106 or 1 12) holding the inlet (102) and/or outlet (103) manifold to the covers [...]

10 308443 Installation Air Exhaust V entilation FIRE AND EXPLOSION HAZARD Be sure to read FIRE OR EXPLOSION HAZARD and TOXIC FLUID HAZARD on page 3, before operating this pump. Be sure the system is properly ventilated for your type of installation. Y ou must vent the exhaust to a safe place, away from peo- ple, animals, food handling areas, and al[...]

308443 1 1 Operation Pressure Relief Procedure PRESSURIZED EQUIPMENT HAZARD The equipment stays pressurized until pressure is manually relieved. T o 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 ?[...]

12 308443 Operation Operation of Remote Piloted Pumps 1. Follow preceding steps 1 through 7 of Starting and Adjusting Pump . 2. Open air regulator (C). W ARNING The pump may cycle once before the external sig- nal is applied. Injury is possible. If pump cycles, wait until end before proceeding. 3. Pump will operate when air pressure is alternately [...]

308443 13 Maintenance Lubrication 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. CAUTION Do not over-lubricate the pump. Oil is exhausted through the muffler , which could contam[...]

14 308443 T roubleshooting 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 1 1. 1. Relieve the pressure before checking or servicing the equipment. 2. Check all possible problems and causes before disassembling the pump. PROBLEM CAUSE SOLUTION Pump c[...]

308443 15 T roubleshooting PROBLEM CAUSE SOLUTION Fluid in exhaust air . Diaphragm ruptured. Replace. See pages 19 to 21. Loose fluid side plate (105). T ighten or replace (pages 19 to 21). Pump exhausts excessive air at stall. Worn air valve block (7), o-ring (6), plate (8), pilot block (18), u-cups (10), or pilot pin o-rings (17). Repair or repla[...]

16 308443 Service Repairing the Air V alve T ools Required  T orque wrench  T orx (T20) screwdriver or 7 mm (9/32”) socket wrench  Needle-nose pliers  O-ring pick  Lithium base grease NOTE: Air V alve Repair Kits 236273 (aluminum center housing models) and 255061 (sst center housing models) are available. Refer to page 26. Parts in[...]

308443 17 Service 04159 Fig. 9 17  16 11 10   12 15 1 2 Insert narrow end first. Grease. 3 Install with lips facing narrow end of piston (1 1). 4 Insert wide end first. 1 2 3 4 2 04160 1 2 8  9  3 Rounded side must face down (aluminum center housing models only). T ighten screws until they bottom out on the housing. Fig. 10 1 2 Re[...]

18 308443 Service Ball Check V alve Repair T ools Required  T orque wrench  10 mm socket wrench  O-ring pick Disassembly NOTE: A Fluid Section Repair Kit is available. Refer to page 25 to order the correct kit for your pump. Parts included in the kit are marked with an asterisk, for example (201*). Use all the parts in the kit for the best[...]

308443 19 Service Diaphragm Repair T ools Required  T orque wrench  10 mm socket wrench  19 mm open–end wrench  Adjustable wrench  O-ring pick  Lithium-base grease Disassembly NOTE: A Fluid Section Repair Kit is available. Refer to page 25 to order the correct kit for your pump. Parts included in the kit are marked with an aster[...]

20 308443 Service 4. Unscrew one outer plate (105) from the diaphragm shaft (24). Remove one diaphragm (401), and the inner plate (104). See Fig. 13. NOTE: PTFE models include a PTFE diaphragm (403) in addition to the backup diaphragm (401). 5. Pull the other diaphragm assembly and the dia- phragm shaft (24) out of the center housing (1). Hold the [...]

308443 21 Service 04236 02637 Fig. 13 1 3 4 2 24 104 403* 401* 24 24 104 401* 403* 105 19 402* Cutaway V iew, with Diaphragms in Place Cutaway V iew, with Diaphragms Removed 1 Lips face out of housing (1). Rounded side faces diaphragm (401). Air Side must face center housing (1). 1 Grease. Apply medium-strength (blue) Loctite  or equiva- lent. T[...]

22 308443 Service Bearing and Air Gasket Removal T ools Required  T orque wrench  10 mm socket wrench  Bearing puller  O-ring pick  Press, or block and mallet Disassembly NOTE: Do not remove undamaged bearings. W ARNING T o reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure R[...]

308443 23 Service 02639B 04158 Fig. 14 1 3 2 25 23 22 1 19 15 12 16 H M Insert bearings tapered end first. Press-fit bearings flush with surface of center housing (1). Apply medium-strength (blue) Loctite  or equivalent. T orque to 130 to 150 in-lb (14 to 17 N  m). Detail of Air V alve Bearings 1 1 1 2 2 2 3 1[...]

24 308443 Pump Matrix Husky 1040 Acetal, Polypropylene, and PVDF Pumps, Series A 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 which describe your pump, working from left to right. The first digit is always D , designating Husky diaphragm pumps. The [...]

308443 25 Repair Kit Matrix For Husky 1040 Acetal, Polypropylene, and PVDF Pumps, Series A Repair Kits may be ordered separately . T o repair the air valve, order Part No. 236273 for aluminum center housing models and Part 255061 for stainless steel center housing models (see page 26). Parts included in the Air V alve Repair Kit are marked with a s[...]

26 308443 Parts 1 Not used on some models. * These parts are included in the Pump Repair Kit, which may be purchased separately . Refer to the Repair Kit Matrix on page 25 to determine the correct kit for your pump.  These parts are included in Air Valve Repair Kit 236273 (aluminum center housing mod- els), which may be purchased separately . ?[...]

308443 27 Parts Air Motor Parts List (Matrix Column 2) Digit Ref. No. Part N o. Description Qty 7 1 188838 HOUSING, center; aluminum 1 2 188854 COVER, air valve; aluminum 1 3 1 16344 SCREW , mach, hex flange hd; M5 x 0.8; 12 mm (0.47 in.) 9 4  188618 GASKET , cover; foam 1 5 188855 CARRIAGE; aluminum 1 6  108730 O-RING; nitrile 1 7 ?[...]

28 308443 Parts Fluid Section Parts List (Matrix Column 3) Digit Ref. No. Part N o. Description Qty 1 101 189377 COVER, fluid; acetal 2 102 189371 MANIFOLD, inlet; acetal 1 103 189374 MANIFOLD, outlet; ace- tal 1 104 188607 PLA TE, air side; alum. 2 105 189380 PLA TE, fluid side; acetal 2 106 1 12560 SCREW ; M8 x 1.25; 70 mm (2.76 in.); sst 12 11 0[...]

308443 29 Parts Seat Parts List (Matrix Column 4) Digit Ref. No. Part N o. Description Qty 2 201* 188604 SEA T ; acetal 4 202* 109205 O-RING; PTFE 8 3 201* 188707 SEA T ; 316 stainless steel 4 202* 109205 O-RING; PTFE 8 4 201* 188708 SEA T ; 17-4 stainless steel 4 202* 109205 O-RING; PTFE 8 5 201* 18871 1 SEA T ; TPE 4 202 None Not Used 0 6 201* 19[...]

30 308443 T orque Sequence Always follow torque sequence when instructed to torque fasteners. 1. Left/Right Fluid Covers T orque bolts to 130–150 in–lb (14–17 N  m) 4 2 7 5 3 6 8 1 2. Inlet Manifold T orque bolts to 80–90 in–lb (9–10 N  m) 9 12 11 10 3. Outlet Manifold T orque bolts to 80–90 in–lb (9–10 N  m) 13 16 15 14[...]

308443 31 Dimensional Drawings SIDE VIEW PUMP MOUNTING HOLE P A TTERN Four 0.5 in. (12.5 mm) diameter holes 5.0 in. (127 mm) 5.5 in. (139.5 mm) 7337C (ANSI Flange) Fluid Outlet Port Diameter: 1.15 in. (29 mm) Eight 0.62 in. (16 mm) slots 5.0 in. (127 mm) 9.25 in. (235 mm) 3.95 in. (100 mm) 45  (ANSI Flange) Fluid Inlet FRONT VIEW 3/4 npt(f) Air [...]

32 308443 T echnical Data Maximum fluid working pressure 120 psi . . . . . . . . . . . . . . . . . (0.8 MPa, 8 bar) Air pressure operating range 20 to 120 psi . . . . . . . . . . . . . . . . (0.14 to 0.8 MPa, 1.4 to 8 bar) Maximum air consumption 60 scfm . . . . . . . . . . . . . . . . . . . . . . Air consumption at 70 psi/20 gpm 20 scfm (see chart[...]

308443 33 Performance Chart T est Conditions: Pump tested in water with inlet submerged. 0 20 40 60 80 100 120 0 5 10 15 20 25 30 35 40 (0.7, 7) Fluid Pressure Curves A at 120 psi (0.7 MPa, 7 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 A B D T[...]

34 308443 Graco W arranties Graco Standard Husky Pump W arranty Graco w arrants 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 per[...]