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Setup
313342D 5
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 F
IG. 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.
F
IG. 1: Hardener and Resin Dosing Valve 255478 Orientation
Resin (Left)
Hardener (Right)
S
26
16
16
7
7
26
S
P
P
R
R
8
8
27
27
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