Graco PRO Xs4 AA manual Barrel Removal, Barrel Installation

Models: PRO Xs4 AA

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Barrel Removal

1.Prepare the gun for service, page 26.

2.Carefully loosen the nut (C) from the bracket fluid fitting (13). See Fig. 15.

3.Loosen the three screws (11).

CAUTION

To avoid damaging the power supply (18), pull the gun barrel straight away from the gun handle. If nec- essary, gently move the gun barrel from side to side to free it from the gun handle.

4.Hold the gun handle (17) with one hand and pull the barrel (16) straight off the handle.

13 C

11

16

Repair

2.Place the barrel (16) over the power supply (18) and onto the gun handle (17).

3.Tighten the three screws (11) oppositely and evenly (about a half turn past snug).

CAUTION

Do not over-tighten the screws (11).

4.Make sure the fluid filter (1) is in place in the fluid fitting. Tighten the bottom fluid tube nut (C) onto the bracket (13) fluid fitting and torque to 20-30 in- lb (2.3-3.4 N•m). Make sure the top nut remains tight.

CAUTION

Be sure the fluid tube (14) is not twisted after tighten- ing the bottom nut (C).

5.Test gun resistance, page 19.

TI1516A

18

*10

11

16

17

17

ti1517a

Fig. 15. Barrel Removal

Barrel Installation

1.Be sure the gasket (10*, Fig. 16) and grounding spring (55, Fig. 13) are in place and the gasket air holes are aligned properly. Replace if damaged.

 

 

13

 

1

TI1520B

 

 

14

 

C

Fig. 16. Barrel Installation

32

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Page 32
Image 32
Graco PRO Xs4 AA manual Barrel Removal, Barrel Installation