Remove Barrel

1.Prepare the gun for repair, page 27.

2.Carefully loosen the nut (54) from the bracket fluid fitting (13). Pull the tube (14 or 50a) out of the fitting. Make sure both ferrules and the nut stay with the tube.

3.Loosen the three screws (11).

NOTICE

To avoid damaging the power supply (18), pull the gun barrel straight away from the gun handle. If necessary, 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. See FIG. 16.

32

54 14

55

13

1116

ti1503a

17

ti1504a

Fig. 16. Remove Barrel

Gun Repair

Install Barrel

1.Be sure the gasket (10*) and grounding spring (53) are in place. Make sure the air holes are aligned properly. Replace if damaged. See FIG. 17.

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).

NOTICE

Do not over-tighten the screws (11).

4.Assemble the fluid tube (14) into the bracket fitting (13). Ensure that the ferrules are in place. Tighten the nut (54).

5.Test gun resistance, page 23.

*10 18

11

16

53

ti12830

Fig. 17. Install Barrel

312900C

31

Page 31
Image 31
Graco Inc 312900C, 247936, 247937 important safety instructions Remove Barrel, Install Barrel