Graco Inc 309293K, 244582, 244581 important safety instructions Shielded Hose, Unshielded Hose

Installation

1. Remove the gun air inlet fitting (35). See FIG. 3..

A

16104

108

107

Shielded Hose 245252

C

J

B

T

FA

A 7.40 in. (188 mm)

B 2.0 in. (50 mm)

Fig. 4. Waterborne Hose Dimensions (At Gun)

106	35
	105

103		38
		39
102
	101	TI2155A

Fig. 3. Connect the Fluid Hose

In a shielded hose system, if a hose failure occurs where high voltage arcs through the inner tube, voltage will be discharged to ground through the conductive hose layer. When properly installed, the conductive hose

Unshielded
Hose 246431	C
T
	A

J

A 1.25 in (32 mm)

TI2742A

layer is grounded through its connection to the grounded enclosure.

2.For the fluid hose to fit properly, it must be stripped and assembled to the dimensions in FIG. 4.. Push the inner tube (T) into the fitting (F) until the tube bottoms. A new Graco waterborne fluid hose comes fully assembled to these dimensions.

CAUTION

Be careful not to cut into the inner tube (T) of the hose when stripping the hose. Nicks or cuts in the PTFE tube will cause premature hose failure.

Fig. 5.

3.Generously apply dielectric grease (40) to the o-ring (107) and the threads of the fitting (106). Pull the fit- ting back 1-1/2 in. (38 mm) and apply grease to the exposed PTFE hose to fill the area between the hose and the fitting. Make sure the barrel inlet is clean and dry, then screw the fitting into the fluid inlet of the gun barrel (16). See FIG. 3..

4.Loosen the strain relief nut (102) so the bracket can move freely on the hose.

5.Align the bracket (104) holes with the air inlet and exhaust outlet. Secure with the air inlet fitting (35). Tighten the strain relief nut (102) to secure the hose.

6.Check that the nut (105) is tightened securely to the ferrule housing (103).

7.Press the exhaust tube (38) onto the barbed adapter (A). Secure with the clamp (39).

8.Connect the other end of the hose to the isolated fluid supply as follows:

12 309293K