Graco ti18524d, ti18496b, ti18526c specifications Repair Foot Valve, Assemble Catalyst Pump

Repair

30.Hold spring (911) upright, place valve (912) on top of spring, slide transfer housing (914) upside down over the spring then flip upright.

31.Install transfer housing (914) onto piston rod (910). Use flats on rod and transfer housing to torque transfer housing against the piston rod to 30-50 in-lb (3.4-5.6 N•m).

32.Slide the cartridge (902) down against the transfer housing (914).

33.Install u-cup (915) onto transfer housing with u-cup opening facing up towards the rod.

34.Install guide (916) onto transfer housing.

35.Install transfer housing cap (917) onto transfer housing. Use flats to torque to 30-50 in-lb (3.4-5.6 N•m).

Repair Foot Valve

36.Use wrench to loosen lock nut (921) then remove cylinder (918) from foot valve (922).

37.Remove ball (925) from foot valve.

38.Remove backup o-ring (920) and o-ring (919) from both ends of the cylinder (918).

39.Remove ball seat (923). Tool 24N253 can be used to aid ball seat removal.

40.Place new ball seat onto seat installation tool 16N996 with lip opening facing in towards tool.

41.Place tool into foot valve then tap with a hammer until ball seat is properly seated then remove tool.

42.Install new backup o-ring (920) and o-ring (919) onto both ends of the cylinder (918). Make sure to install the o-rings in the correct position, with the backup o-rings towards the center of the cylinder.

43.Lubricate the backup o-rings (920) and o-rings (919).

44.Install ball into foot valve.

45.Thread cross-cut end of cylinder into foot valve by hand until it bottoms out but do not tighten the jam nut.

Assemble Catalyst Pump

46.Verify cartridge (902) is pressed against the transfer housing (914).

47.Lubricate the o-ring (902g) on the cartridge.

48.Apply thread sealant to the threads of the cartridge (902a).

49.With the slave pump housing (901) in a vise, care- fully thread the cartridge (902) into the housing. Torque the cartridge to 240 in-lb (27.1 N•m).

50.Lubricate the o-rings (919, 920) on the cylinder (918).

51.Hand-thread the cylinder (918) into the slave pump housing (901) all the way until the cylinder bottoms out. Rotate the cylinder counterclockwise less than 1/2 turn until the flat on the cylinder is parallel with the quick-release pin hole then insert the quick-release pin (908).

52.With the quick-release pin in place, rotate the foot valve counterclockwise less than one full-turn so that it is facing directly backwards relative to the pressure gauge.

53.Hold the foot valve in position and tighten the lock nut (921) against the foot valve to 225-275 in-lb (25.4-31.1 N•m).

54.Push the piston rod (908) down into the slave pump housing (901).

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