Graco 288217, 249369, 249377 important safety instructions Alternate Fluid Control Shown

Service

13. Remove all o-rings from the piston (3) and stems

(T). Check that the stems are solidly in place. If they are loose, replace the entire piston assembly (3).

14. Perform the following applicable step:

a. Non-circulating guns: Remove the fluid outlet port plug (19), and gasket (22) from the fluid housing (2). Remove the o-ring (21) and backup (20) from the plug.

1 2

11* 3

2 2 10* 3

16 8

25

23 1 2

24

17 3

5

5a9

36

TI8199a

Alternate Fluid Control Shown

FIG. 21

b.Circulating guns: Remove the gasket (22) from the fluid housing (2).

15.Clean all parts and replace any worn parts. When assembling, lubricate the threads with anti-seize lubricant.

8*	3	4	2	4
T				6

7

29

30 6 7

93

33

12* TI8103a

Cutaway View:

Part No. 249388 Gun Shown

SERVICE NOTES:

1Torque to 35-45 in-lb (4.0-5.1 N•m)

2Lubricate threads with anti-seize lubricant

3Lubricate with light-weight oil

4Tighten cap (4) until it bottoms out

6Apply semi-permanent anaerobic sealant

7Torque to 4-5 in-lb (0.45-0.57 N•m)

8Torque to 95-105 in-lb (10.7-11.8 N•m)

9Apply semi-permanent anaerobic sealant to two threads at end of needle shaft.

24 311051F