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Graco 287834 Operation
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Graco 287834 Operation

Graco 287834 Operation

Displacement pump
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Operation
Displacement Pump
- Use with Architectural Coatings, Paints, Roof Coatings
Model 287834
4000 psi (27.6 MPa, 275.8 bar) Maximum Working Pressure
Important Safety Instructions
Read all warnings and instructions in this
manual. Save these instructions.
and Below Grade Coatings -
311485J
EN
ti7629a

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Summary of Contents for Graco 287834

  • Page 1 311485J Displacement Pump - Use with Architectural Coatings, Paints, Roof Coatings and Below Grade Coatings - Model 287834 4000 psi (27.6 MPa, 275.8 bar) Maximum Working Pressure Important Safety Instructions Read all warnings and instructions in this manual. Save these instructions.
  • Page 2 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 symbols refer to procedure-specific risks. When these symbols appear in the body of this manual, refer back to these Warnings. Product-specific hazard symbols and warnings not covered in this section may appear throughout the body of this manual where applicable.

  • Page 3: Operation

    Operation Operation Pressure Relief Procedure 3. Open prime valve (vertical). System pressure must be manually relieved to prevent it from starting or spraying accidentally. Fluid under high pressure can be injected into the skin and cause serious injury. To reduce risk of injury from injection, follow this procedure whenever you are instructed to relieve pressure, stop spraying, service equipment or install or clean spray tip (read Warnings, page 2).
  • Page 4 Service Service Removal 5. Using a wrench, loosen filter housing fitting (110) and remove housing from pump. 1. Flush pump (36). Stop pump on down stroke if pos- sible. 2. Perform Pressure Relief Procedure, page 3. 3. Remove suction set (147) from pump (36). ti7119b 6.
  • Page 5 Service 8. Separate coupling (125) and remove. Ball Adjustment 1. Using a hammer, loosen and remove intake valve (213). ti7814b ti7875b 2. Disassemble and clean all parts and o-rings (207). 9. Using a hammer, loosen jam nut (122). Unscrew pump (36) from power head. ti7782b ti7879b 10.
  • Page 6 Service Piston Rod Assembly 4. Remove parts. Note orientation of parts for reas- sembly. 1. Tap piston rod out of cylinder with a hammer or flip over and tap piston rod out against bench. NOTE: Sleeve may come out of cylinder with piston rod.
  • Page 7 Service 3. Grease piston rod (222) packings and top edge of 6. Grease o-ring (207) and place on sleeve. Slide one sleeve (220). o-ring (207) inside cylinder (205). Slide sleeve/pis- ton rod assembly (222) into bottom of cylinder. ti7898a 4. Carefully slide piston rod assembly (222) into top edge of sleeve (220).
  • Page 8 Service 10. Reassemble intake valve (213) as shown. 14. Hand tighten jam nut (122). Then tighten securely 1/8 to 1/4 turn with hammer or torque to 330 ft-lb (447.4 N•m). ti7817a ti7873a 15. Install coupling (125) around pump rod. 11. Place intake valve (213) assembly in vice. Install cylinder (205) assembly to intake valve.
  • Page 9 Service 17. Replace clip pin (121) to secure. 19. Connect suction hose (147) to pump outlet (36). ti7809a ti7764a 18. Reinstall filter housing (110). ti7772a 311485J...
  • Page 10 Parts Parts Ref. Part Description Qty. Ref. Part Description Qty. 15H335 FITTING, nipple, 1 inch NPT 201* 116385 PLUG 217* 15H251 GLAND, female, piston steel 15G198 NUT, packing 218* 15G282 GLAND, male 203* 15G285 V-PACKING, UHMWPE, blue 219* 15G283 GLAND, female 204* 15H250 GLAND, male, throat 287833 SLEEVE, cylinder 287836 CYLINDER, pump...
  • Page 11 Notes Notes 311485J...

  • Page 12: Graco Standard Warranty

    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.