Repair

Fluid Needle Replacement

1. Prepare the gun for service, page 35.

2. Remove the air cap assembly and seat housing,

 

page 37.

8a

 

3.Remove the barrel (6), page 44.

4.Remove the spring cap (45) and the spring (8a) from the barrel. See FIG. 27..

5.

Be sure the seat housing (5) is removed. Place the

Fig. 27. Spring Cap and Springs

 

 

2 mm ball end wrench (44) in the back of the fluid

N

 

needle assembly. Push the tool in and turn it coun-

 

terclockwise about 12 full turns to unthread the nee-

 

 

dle.

 

6.

Using the multi-tool (37), pull back on the packing

 

 

nut (N) to remove the fluid needle assembly. See

 

 

FIG. 28..

 

7.

Install the fluid needle assembly in the gun barrel.

37

 

Push in on the needle with the 2 mm ball end

 

 

 

wrench (44) and tighten. See FIG. 29..

 

8.

Install the spring (8a).

 

9.

Install the spring cap (45), making sure the ground-

Fig. 28. Fluid Needle Removal

 

 

ing spring (25) is in place. Tighten until snug. Do

 

 

not overtighten.

 

10.

Install the barrel (6), page 45.

 

CAUTION

To avoid damaging the seat housing and gun barrel, never overtighten the seat housing. Overtightening may result in improper fluid shutoff.

11. Install the seat housing and air cap, page 37.

Fig. 29. Fluid Needle Replacement

12. Test gun resistance, page 29.

25

45

309298J

41

Page 40 Page 42
Page 41
Image 41
Graco Inc 244592, 309298J, TI1713A, PRO Auto Xs AA important safety instructions Fluid Needle Replacement, Not overtighten
Page 40 Page 42

244592, PRO Auto Xs AA, TI1713A, 309298J specifications

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