Displacement Pump - Graco 223-773 A Series Instructions And Parts List

Airless paint sprayer 3000 psi (21.0 mpa, 210 bar) maximum working pressure

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Instructions and parts list (28 pages)

Table Of Contents

Table of Contents

Removing the Pump

WARNING

INJECTION HAZARD

To reduce the risk of serious injury,

whenever you are instructed to relieve

pressure, follow the Pressure Relief

Procedure on page 10.

1. Flush the pump, if possible, and relieve pressure

again. Stop the pump with the piston rod in its

lowest position, if possible.

2. Remove the hose (47), clips and drain tube (101).

Remove the suction tube (42); hold the wrench

on the pump intake valve (223) to keep the pump

from loosening. See Fig. 12.

3. Push the retaining spring (35) up. See Fig. 13.

4. Push out the pin (20). See Fig. 14.

5. Loosen the locknut (38) and unscrew the pump

from the bearing housing (27). See Fig. 15.

Tools Needed for Pump Repair

Repair Kit, P/N 220–877

Sleeve Removal Tool, P/N 220–991

Heavy duty vise

1-1/16'' open end wrench for Pump 220–872

2-1/4'' adjustable, open-end wrench

Plastic mallet

Small screwdriver

Throat Seal Liquid

Thread Sealant

NOTE: Soak leather packings in oil before installing.

Cleaning and Inspecting Parts

Clean and inspect the parts. Pay particular attention to

the ball seat in the intake valve, which should have no

nicks or wear, and to the inside of the sleeve and the

outside of the piston rod, which should not be worn or

scratched. Replace worn or damaged parts.

Remove and clean the sleeve when you are repacking

the pump. A special sleeve removal tool is available.

See the chart, above, for the tool number for your

pump.