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Instructions
Displacement Pump
311845C
- For portable spray application of architectural paints and coatings -
Model 288466, 288467, 288468, 288819
3300 psi (22.8 MPa, 25 bar) Maximum Working Pressure
Important Safety Instructions
Read all warnings and instructions in this manual.
Save these instructions.
Model 288467/288468
Model 288466
Model 288819
Ti8844a
Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441
Copyright 2007, Graco Inc. is registered to I.S. EN ISO 9001
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Warnings Warnings The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclama- tion point symbol alerts you to a general warning and the hazard symbol refers to procedure-specific risk. Refer back to these warnings. Additional, product-specific warnings may be found throughout the body of this manual where applicable. WARNING EQUIPMENT MISUSE HAZARD Misuse can cause death or serious injury. • Do not operate the unit when fatigued or under
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Service Service Pressure Relief Procedure Tools Needed Vise 12-inch adjustable, open-end wrench (2) Hammer, 20 oz. maximum Small screwdriver The system pressure must be manually relieved to pre- Throat Seal Liquid vent the system from starting or spraying accidentally. Pick or long small screwdriver To reduce the risk of an injury from accidental spray from the gun, splashing fluid, or moving parts, follow the Pressure Relief Procedure whenever you, Cleaning and Inspecting Parts
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Repair Repair See your sprayer instruction manual for complete 3. (Fig. 3) Disassemble intake valve. Clean and instructions for removing and installing the pump in your inspect o-ring (17). You may need to use a pick to sprayer. remove o-ring. Spring (26) for model 288819 is optional and is not Disassembly included with the pump. 1. (Fig. 1) Remove packing nut (3). 3 26 (288467/288468) 18 26 19 (288819) 16 17 1 ti8845a FIG. 1 ti8847b FIG. 3 2. (Fig. 2) Unscrew intake valve from cylinder. 4
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Repair 7. (Fig. 7) Remove packing and glands from piston rod. Note orientation for installation. 11 Do not clean or wipe piston valve (6) threads. Clean- ing the piston valve threads could destroy the special sealing patch and cause the piston valve to come 6 loose during operation. 5 13 6. (Fig. 6) Unscrew piston valve (6) from piston rod (5). 12 Clean and inspect parts. The piston has a special 10 thread locking/sealing patch. Do not remove the 9 patch. The patch allows for disassembly/a
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Repair ® 5. (Fig 10) Install ball (11) in piston rod (5). If Loctite Reassembly is applied to piston valve threads, ensure that none Note: For steps 1-4 refer to Fig. 9. gets on ball. 1. Stack male gland (7) on piston rod (5). 11 2. Alternately stack blue UHMWPE (8) and brown UHMWPH (9) (288466, 288467, 2884680) or leather (288819) packings on piston rod. Note orientation. 5 3. Install female gland (10). 4. Install backup washer (13) and piston wiper (12) on piston valve (6). Note orient
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Repair 7. Soak all leather packings in SAE 30W oil for 1 hour 12. (Fig. 14) Install o-rings (14) inside cylinder (2) and minimum prior to assembly. on sleeve (4). Slide sleeve (4) into bottom of cylinder (2). Replace o-ring (15) if desired. Note: For steps 8-10 refer to Fig. 12. 8. Place male gland (20) in cylinder. Place inside cylinder (2) 9. Alternately stack UHMWPE (21) and leather pack- and push to shoulder ings (22). Note orientation. with sleeve (4). 2 10. Place female gland (23) in to
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Repair 14. (Fig. 16) Reassembly intake valve with new o-ring 16. Torque packing nut to: (17), seat (16) and ball (19). Seat may be flipped 140 +/- 10 in-lb (15 +/- 1 Nm) 288467/288468, 288819. over and used on the other side. Clean seat thor- oughly. 125 +/- 10 in-lb (14 +/- 1 Nm) 288466 When pump packings begin to leak, tighten packing Spring (26) for model 288819 is optional and is not nut down until leakage stops or lessens. This allows included with the pump. approximately 100 gallons
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Parts Parts Model 288467/288468 Ref Part Description Qty 115E655HOUSING 1 2 288482 CYLINDER (model 288467) 1 288483 CYLINDER (model 288468) 11 3 15J792 NUT, packing 1 4 249121 SLEEVE, cylinder (model 288467) 1 12 287817 SLEEVE, cylinder (model 288468) 13 5 288469 ROD, piston (model 288467) 1 6 24 288470 ROD, piston (model 288468) 6 249177 VALVE, piston 1 3 7* 189585 GLAND, packing, male 1 8* PACKING,VEE (blue) 8 25 9* PACKING,VEE (brown) 3 23 10* 189588 GLAND, packing, female 1 2 11* 107203 BALL
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Parts Model 288466 Ref Part Description Qty 1 195894 HOUSING, intake 1 2 288727 CYLINDER 1 3 193032 NUT, packing 1 24 4 248210 SLEEVE, cylinder 1 5 288479 ROD, piston 1 6 240150 VALVE, piston 1 3 7* 183178 GLAND, packing, male 2 8* PACKING (blue) 8 5 25 9* PACKING,VEE (brown) 3 10* 183185 GLAND, packing, female 2 10 11* 101947 BALL, bearing 1 7 12* 118504 WIPER, piston 1 8 22 13* 15C998 WASHER, backup 1 14* 107098 PACKING, o-ring 2 8 15* 106556 PACKING, o-ring 1 9 7 16† 244199 SEAT, carbide 1 1
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Parts Model 288819 Ref Part Description Qty 1 15A303 HOUSING, intake 1 2 288822 CYLINDER, pump 1 12 3 15J792 NUT, packing 1 13 4 248979 SLEEVE, cylinder 1 11 24 5 288821 ROD, piston 1 6 3 6 249177 VALVE, piston 1 7* 189585 GLAND, packing, male 1 25 8* PACKING, vee, blue 8 23 9* PACKING, vee, leather 6 10* 189588 GLAND, packing, female 1 11* 118601 BALL, ceramic, 0.5625 dia 1 2 12* 119636 WIPER, piston 1 8 13* 15F183 WASHER, backup 1 9 14* 108822 PACKING, o-ring 2 15* 107306 PACKING, o-ring 1 16†
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Parts Notes 12 311845C
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Technical Data Technical Data Maximum working pressure 3300 psi, 25 bar, 22.8 MPa Fluid inlet size 1-5/16 UN (m) models 288467/288468 3/4-14 npt (m) model 288466 Fluid outlet size 3/8 npt (f) Wetted parts stainless steel, PTFE, leather, nylon, zinc-plated carbon steel, tungsten carbide, brass, fluorelastomer, acetal, polyethylene, ceramic 311845C 13
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Graco Standard Warranty Graco Standard Warranty Graco warrants all equipment referenced in this document which is 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 twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective. T
