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Instructions- -Parts List
Displacement Pump
For supply and circulation of finishing materials.
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
360 psi (25 bar) Maximum Working Pressure*
* The maximum safe working pressure is determined by the motor
to which this displacement pump is connected.
Part No. 218746, Series E
Stainless Steel, UHMWPE and Leather Packed Pump
Part No. 237199, Series A
Stainless Steel, PTFE Packed Pump
Part No. 237140, Series A
Carbon Steel, Leather Packed Pump with PTFE Backup
Part No. 237141, Series A
Carbon Steel, Leather and PTFE Packed Pump
Table of Contents
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307652S
EN
06080
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Summary of Contents for Graco 218746
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Page 1: Table Of Contents
360 psi (25 bar) Maximum Working Pressure* * The maximum safe working pressure is determined by the motor to which this displacement pump is connected. Part No. 218746, Series E Stainless Steel, UHMWPE and Leather Packed Pump Part No. 237199, Series A Stainless Steel, PTFE Packed Pump Part No. -
Page 2: Warnings
D This equipment is for professional use only. D Read all instruction manuals, tags, and labels before operating the equipment. D Use the equipment only for its intended purpose. If you are not sure, call your Graco distributor. D Do not alter or modify this equipment. - Page 3 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 in your separate pump manual.
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Page 4: Service
Service Pressure Relief Procedure 1. If you are pumping heavy viscosity fluid and erratic pump operation develops, disassemble the pump as explained on page 5. To increase the ball travel in the intake valve, move the pin (18) WARNING to the center or upper set of holes. To increase the ball travel in the piston valve, place the piston in a PRESSURIZED EQUIPMENT HAZARD vise, loosen the upper cap (38d) to relieve tension... - Page 5 Service Before you start: 5. Clean all parts of the intake valve and inspect carefully for wear or damage. Inspect the seat (C) 1. Have all necessary repair parts on hand. Recom- of the retainer and seat assembly (22), but do not mended spare parts are marked in the parts list attempt to remove it.
- Page 6 Service See Fig. 3. See Fig. 4. Apply thread sealant. Models 218746 and 237199: Apply thread lubricant and torque to 20- -24 ft- -lb (27- -33 N.m). Models 237140 and 237141: Apply thread lubricant and torque to 200- -225 in- -lb (22- -25 N.m).
- Page 7 Apply sealant to male threads and torque to 80- -90 ft- -lb (108- -122 N.m). Lips of v-packings must face down. Lubricate threads and torque to 20- -24 ft- -lb (27- -33 N.m). Model 218746 Model 237141 Model 237140 Model 237199...
- Page 8 8. Apply thread sealant and screw the retainer and seat assembly (22) into the intake valve housing 12. Fill the packing nut/wet-cup (2) 1/3 full of Graco (20). Install the gasket (7*) on the intake valve Throat Seal Liquid or a compatible solvent. Recon- housing.
- Page 9 Parts Model 218746, Series E, Stainless Steel, UHMWPE and Leather Packed Part Part Description Description 181871 PACKING NUT/WET-CUP 171167 SPACER, piston 180933 HOUSING, outlet, pump DISPLACEMENT ROD ASSY Includes items 38a--38f 180963 GASKET; nylon 38an 107305 . O-RING; fluoroelastomer 24C498...
- Page 10 Parts Model 237199, Series A, Stainless Steel, PTFE Packed Part Part Description Description 181871 PACKING NUT/WET-CUP 103975 LOCKWASHER; 3/8” (10 mm) size 171167 SPACER, piston 180933 HOUSING, outlet, pump DISPLACEMENT ROD ASSY 180963 GASKET; nylon Includes items 38a--38f 24C498 CYLINDER, pump 38an 107305 O-RING;...
- Page 11 Parts Model 237140, Series A, Carbon Steel, Leather Packed with PTFE Backup Part Part Description Description 181871 PACKING NUT/WET-CUP 160016 SPACER, piston DISPLACEMENT ROD ASSY 180932 HOUSING, outlet, pump Includes items 38a--38f 180963 GASKET; nylon 38an 107305 O-RING; fluoroelastomer 24C498 CYLINDER, pump 38bn 107306 O-RING;...
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Page 12: Parts
Parts Model 237141, Series A, Carbon Steel, Leather and PTFE Packed Part Part Description Description 181871 PACKING NUT/WET-CUP 160016 SPACER, piston DISPLACEMENT ROD ASSY 180932 HOUSING, outlet, pump Includes items 38a--38f 180963 GASKET; nylon 38an 107305 O-RING; fluoroelastomer 24C498 CYLINDER, pump 38bn 107306 O-RING;... - Page 13 Conversion Kit 218757 UHMWPE CONVERSION KIT (Must be purchased separately) Converts the pump to ultra-high molecular weight polyethylene packings. Part No. Description 180401 BEARING, throat 107507 SEAL, throat; UHMWPE 180963 GASKET, cylinder; nylon (see item 7 on page 9 for location) 180792 PACKING, cup, piston;...
- Page 14 Notes 307652...
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Page 15: Technical Data
Category Data Maximum Working Pressure 360 psi (25 bar) Wetted Parts: Model 218746: Stainless Steel; fluoroelastomer; Cellulose Fiber; Leather; Ultra-High Molecular Weight Polyethylene Model 237141: Ductile Iron; Carbon Steel; Stainless Steel; Cadmium, Zinc, and Nickel Plating; Nitralloy; fluoroelastomer; Cellulose Fiber; Leather; PTFE Model 237199: Stainless Steel;... -
Page 16: Graco Warranty
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.
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