Graco A Series Instructions-Parts List Manual page 6

Repair - Models 24J088 and 24J089 Only
NOTE: If the pressure relief valve in the seat (6) is
clogged or filled with material, soak the seat in a com-
patible solvent. Make sure all material residue is
cleaned from the ball and seat area.
If the relief valve cannot be thoroughly cleaned so that
the ball and spring are free to move, replace the seat
(6).
15. Place the flats of the piston nut (12) in a vise.
Unscrew the rod (17) from the nut. Remove the
spacer (44). Disassemble the piston (10) and
remove the seal (11).
16. Clean all parts in a compatible solvent. Inspect all
parts for wear or damage. If you are using a repair
kit, use all the new parts in the kit, discarding the old
ones they replace. Replace any other parts as
needed. Worn or damaged parts may cause the
pump to perform poorly or cause premature wear of
the new seals and packings.
6 3A2023C