Instructions – Parts List Parts STAINLESS STEEL Dura–Flot 600 Pumps 308350F With Severe–Duty Rod and Cylinder Read warnings and instructions. See page 2 for model numbers and maximum working pressures. * See page 2 for models that are certified and approved. Model 686615 04373 04498 Model 237634 Model 236464 GRACO INC.ąP.O. BOX 1441ąMINNEAPOLIS, MNą55440-1441 Copyright 2002, Graco Inc. is registered to I.S.
List of Models Pump Part No. and Series Pump Model Displacement Pump Part No. and Series Ratio Maximum Fluid Working Pressure Maximum Air Input Pressure * 237634, Series A Bulldogr 236458, Series A 41:1 28.3 MPa, 283 bar (4100 psi) 0.7 MPa, 7 bar (100 psi) * 236464, Series A Reduced Icing Quiet Bulldogr 236458, Series A 41:1 28.3 MPa, 283 bar (4100 psi) 0.7 MPa, 7 bar (100 psi) Senatorr 241177, Series A 25:1 12 MPa, 117 bar (1700 psi) 0.
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 D This equipment is for professional use only.
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. D Fluid injected into the skin might look like just a cut, but it is a serious injury. Get immediate medical attention. D Do not point the gun at anyone or at any part of the body. D Do not put your hand or fingers over the spray tip.
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. D Ground the equipment and the object being sprayed. Refer to Grounding on page 7. D 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.
Notes 6 308350
Installation 3. Air compressor: follow manufacturer’s recommendations. General Information NOTE: Reference numbers and letters in parentheses in the text refer to the callouts in the figures and the parts drawing. NOTE: Always use Genuine Graco Parts and Accessories, available from your Graco distributor. Refer to Product Data Sheet, Form No. 305724. If you supply your own accessories, be sure they are adequately sized and pressure rated for your system.
Installation System Accessories (continued) D A pump runaway valve (C) senses when the pump is running too fast and automatically shuts off the air to the motor. A pump which runs too fast can be seriously damaged. D An air manifold (G) has a 3/4 npsm(f) swivel air inlet. It mounts to the pump support bracket, and provides ports for connecting lines to air-powered accessories. D An air line filter (J) removes harmful dirt and moisture from the compressed air supply.
Installation TYPICAL INSTALLATION KEY A B C D E F G H Pump Wall Bracket Pump Runaway Valve Air Line Lubricator Bleed-Type Master Air Valve (required, for pump) Pump Air Regulator Air Manifold Electrically Conductive Air Supply Hose R S T Y Gun Swivel Airless Spray Gun Suction Kit Ground Wire and Clamp (required; see page 7 for installation instructions) W Air Line Drain Valve J K Air Line Filter Bleed-Type Master Air Valve (for accessories) L Fluid Filter M Fluid Drain Valve (required) N Electrically C
Operation/Maintenance Pressure Relief Procedure WARNING INJECTION HAZARD The system pressure must be manually relieved to prevent the system from starting or spraying accidentally. Fluid under high pressure can be injected through the skin and cause serious injury.
Operation/Maintenance Flush the Pump Before First Use The pump is tested with lightweight oil, which is left in to protect the pump parts. If the fluid you are using may be contaminated by the oil, flush it out with a compatible solvent. See Flushing on page 12. Starting and Adjusting the Pump 1. See Fig. 2. Connect the suction kit (T) to the pump’s fluid inlet. Place the tube into the fluid supply.
Operation/Maintenance Shutdown and Care of the Pump WARNING To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 10. For overnight shutdown, stop the pump at the bottom of its stroke to prevent fluid from drying on the exposed displacement rod and damaging the throat packings. Relieve the pressure. Always flush the pump before the fluid dries on the displacement rod. See Flushing below.
Troubleshooting Chart WARNING To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 10. PROBLEM 1. Relieve the pressure. 2. Check all possible causes and problems before disassembling the pump. CAUSE The pump fails to oper- Valves are closed or clogged. ate. The fluid hose or gun is obstructed. SOLUTION Clear the air line; increase the air supply. Check that the valves are open.
Service Required Tools D D D D D D D D Set of adjustable wrenches Large pipe wrench 2–3/4 in. socket wrench Torque wrench Rubber mallet O-ring pick Large vise Plastic or wooden block, approximately 6 in. square x 1 in. thick Thread lubricant Thread sealant D D Disconnecting the Displacement Pump 1. Flush the pump, if possible. Stop the pump at the bottom of its stroke.
Service V Model 237634 Shown 101 W 107 106 2 110 1 3 105 3 108 8 1 109 U 1 Torque to 61–75 NSm (45–55 ft-lb) 2 Torque to 195–210 NSm (145–155 ft-lb) 3 Torque to 68–81 NSm (50–60 ft-lb) 04377 Fig.
Service 2. Using a 2–3/4 in. socket or a pipe wrench, unscrew the intake valve (5) from the intake housing (7). Be careful to catch the intake ball (13) as you remove the intake valve, so that it does not fall and suffer damage. Remove the seal (30) from the intake valve. Inspect the ball and the seat (D) of the intake valve for wear or damage. DISPLACEMENT PUMP SERVICE Disassembly When disassembling the pump, lay out all the removed parts in sequence, to ease reassembly.
Service 6. Shine a light into the cylinder (2) to inspect the inner surface for scoring or wear. Remove the two seals (11) from the cylinder. CAUTION To reduce the possibility of costly damage to the rod (1) and cylinder (2), always use a plastic or wooden block to help drive the rod out of the cylinder. Never hit the rod with a hammer. 7. Place the flats of the piston seat housing (10) in a vise, as shown in Fig. 7. 8.
Service Reassembly 1. If it was necessary to remove the piston ball housing (9) from the displacement rod (1), clean the threads of the rod and the ball housing, and apply thread sealant. Screw the ball housing onto the rod, hand tight. Place the flats of the piston ball housing in a vise and torque the rod to 258–285 NSm (190–210 ft-lb). See Fig. 9. 2.
Service 1 Torque to 61–75 NSm (45–55 ft-lb). 6 Lips face up. 2 Torque to 325–353 NSm (240–260 ft-lb). 7 Lips face down. 3 Torque to 258–285 NSm (190–210 ft-lb). 8 See the Throat Packing Detail at left. 4 Lubricate. 9 See the Piston Packing Detail at left. 5 Apply thread sealant. 10 1 Torque to 190–217 NSm (140–160 ft-lb). 8 1 Throat Packing Detail (Displacement Pump 236458 Shown; see page 24 for options.
Service 9. Install the seal (30*) on the intake valve (5). Lubricate the seal and the threads of the intake valve. 10. One end of the intake housing (7) has a rounded ball cavity (S) on the inside (see Fig. 9). Install the ball (13*) in this cavity, then screw the intake valve (5) into the intake housing handtight. See Fig. 10. The threads will engage easily until the seal contacts the sealing surface of the intake housing. 1 Orient so the end with the ball cavity (S, see Fig. 9) faces the ball (13*).
Parts Part No. 237634 Pump, Series A 41:1 Ratio, with Bulldog Air Motor Part No. 236464 Pump, Series A 41:1 Ratio, with Reduced Icing Quiet Bulldog Air Motor 102Y 101 102Y 101 107{ {105 107{ 106{ 106{ {105 110{ 110{ {108 {108 109 {These parts are included in 109 Connection Kit 235417. For applications requiring stainless steel tie rods, order Connection Kit 235418. {These parts are included in Connection Kit 235417.
Parts Part No. 686615 Pump, Series A 25:1 Ratio, with Senator Air Motor 101 102Y 107{ {105 106{ 110{ {108 109 112 113 111 { These parts are included in Connection Kit 235417. For applications requiring stainless steel tie rods, order Connection Kit 235418. 9204A 9204C Ref. No. 101 Part No. 217540 102Y 176529 105{ 190000 106{ 107{ 108{ 22 186925 184129 106166 308350 Description AIR MOTOR, Senator See 307592 for parts LABEL, warning ROD, tie; 224 mm (8.
Parts NOTE: The parts listed on this page are common to all displacement pumps covered in this manual. Refer to page 24 for the different packing configurations available. * These parts are included in Repair Kit 237234, which may be purchased separately for standard Displacement Pump 236458. See page 24. They are also included in Optional Kits 237236, 237238, and 237609. Y Replacement Danger and Warning labels, tags and cards are available at no cost. 8 Ref No. Part No.
Packing Kits Leather Packing Kit 237234, for Standard Displacement Pump 236458, Series A Ref No. Part No. Description 3* 4* 18* 19* 184222 184172 109302 184302 GLAND, male; stainless steel GLAND, female; stainless steel V-PACKING; PTFE r V-PACKING; leather THROAT PACKINGS: LIPS FACE DOWN Qty 2 2 2 8 PISTON PACKINGS: LIPS FACE UP *4 *3 18* *19 *19 *3 *4 18* * Kit also includes items 11, 12, 13, and 30 (see page 23). 0805 0806 LUBRICATE PACKINGS Teflonr Packing Kit 237236 (Optional) Ref No.
Technical Data WARNING Be sure that all fluids and solvents used are chemically compatible with the Wetted Parts listed below. Always read the manufacturer’s literature before using fluid or solvent in this pump. Category Data Maximum fluid working pressure 28.3 MPa, 283 bar (4100 psi) Maximum air input pressure 0.7 MPa, 7 bar (100 psi) Ratio 41:1 Pump cycles per 3.8 liters (1 gallon) 26 Fluid flow at 60 cycles per minute 8.7 liters/min (2.3 gpm) Air motor piston effective area 248 cm@ (38 in.
Technical Data KEY: Fluid Outlet Pressure – Black Curves Air Consumption – Gray Curves psi MPa, bar 5000 35.0, 350 4000 28.0, 280 3000 21.0, 210 A B C 13 26 cycles/min 52 39 65 200 5.60 A 150 4.20 B A 100 2.80 B C 1000 7.0, 70 0 78 scfm m#/min 250 7.00 60 2000 14.0, 140 gpm 0.0 liters/min 0.7 MPa, 7 bar (100 psi) Air Pressure 0.49 MPa, 4.9 bar (70 psi) Air Pressure 0.28 MPa, 2.8 bar (40 psi) Air Pressure C 0.5 1.9 1.0 3.8 1.5 5.7 2.0 7.6 2.5 9.5 50 1.40 3.0 11.4 FLUID FLOW (NO.
Dimensions Mounting Hole Layout Model 237634 Shown 94.28 mm (3.712”) 101.6 mm (4.0”) G 94.28 mm (3.712”) C 50.8 mm (2.0”) A H Three M16 x 2.0 Holes 11.1 mm (0.437”) DIA (4) 88 mm (3.464”) B D 0653 F E 04373 Pump Model A B C D E F G H 237634 1105 mm (43.50 in.) 561 mm (22.09 in.) 544 mm (21.42 in.) 257 mm (10.12 in.) 1–1/2 in. npt(f) 3/4 npt(f) 3/4 npsm(f) 1–1/2 in. npt(f) 236464 1155 mm (45.47 in.) 561 mm (22.09 in.) 594 mm (23.38 in.) 257 mm (10.12 in.) 1–1/2 in.
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.