6.Loosen the hex nut (9) with the gun tool (28).

9

ti4978a

FIG. 26

7.Remove the spray housing (2A) and insert (4).

2A 4

ti4830b

FIG. 27

Service

Replacing the spray housing o-rings and packings

1.With the spray housing (2A) removed from the insert (4), use a mechanical pick to remove the o-ring (2B) from the housing (2A).

2A 36 4

2B

ti4829b

FIG. 28

2. Remove o-ring (34) from the insert (4).

O-ring (2B) is slightly larger than o-ring (34).

3.Install a new o-ring (34) into the insert (4). Install a new o-ring (2B) into the housing (2A).

NOTE: To ease o-ring installation, place the insert

(4)into the spray housing (2B) to plug the end. Install one end of the o-ring into the groove in the housing, then press the rest of the o-ring into place.

20

310692C

Page 20
Image 20
Graco 310692C manual Replacing the spray housing o-rings and packings