Graco 313342D important safety instructions Setup, Resin Left Hardener Right

Setup

Setup

Follow the instructions below to setup dosing valve 255478 on a XM plural-component sprayer as the hard- ener and resin dosing valves.

NOTE:

Dosing valve 245846 was used on the old Xtreme Mix™ and should not be installed on XM sprayers.

1.Remove plug (31) if 255478 will be used on a machine with pressure transducers (P).

NOTE:

Valves are shipped with the parts orientated as a hard- ener valve.

2.Resin dosing valve (left side): Remove screws (27) and turn seat housing (26) 90° so that the side ports are facing to the left for the sampling valve (S) and to the rear for the temperature sensor (not shown). See FIG. 1.

3.Hardener dosing valve (right side): If necessary, remove screws (27) turn seat housing (26) 90° so

that the side ports are facing to the right and rear for the sampling valve (S) and temperature sensor (T).

4.Transfer all valves, fittings, and sensors from the dosing valve being removed from the machine to the new valve.

5.Use new o-ring (36) when replacing recirculation valve (R). If not using valve (R), plug port with plug (33). See parts illustration on page 8.

6.If not using sampling valve (S), plug port with plug (29).

7.Replace seat housing (26) with screws (27).

8.Fill dosing valves A and B packing nuts (7) with throat seal liquid (TSL) and tighten 1/4 turn after nut contacts packings; about 145-155 in.-lbs (16-18 N•m).

9.See XM plural-component sprayer repair manual 313289 for installation instructions.

Resin (Left) Hardener (Right)

7

			7
16			16
P			8
			R
		8
R		P
S			S
26	27	27 26	r_313259_313342_2

FIG. 1: Hardener and Resin Dosing Valve 255478 Orientation

313342D 5