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8 313342D
Parts
255478, Dosing Valve for XM Plural-Component Sprayers
1. Apply pipe sealant to non-swiveling pipe threads.
2. Apply lubricant to threads, o-rings, and seals.
Apply blue thread lock. Thread to bottom.
Torque to 5-7 ft-lbs (7-9 N•m).
Torque to 30-40 ft-lbs (41-54 N•m).
Tighten packing nut 1/4 turn after nut bottoms out;
145-155 in./lbs (16-18 N•m). Check packing nut tightness
about once a month. Keep packing nut filled with TSL.
Lubricate and press piston evenly into cylinder.
Clean ball housing (10) and packing cavity before
reinstalling packings (17, 18, 19). Lubricate packings and
install with lips facing down away from packing nut (7) in
order shown.
3
4
5
6
7
8
Replace o-rings (25) when seat housing (26) is removed.
Inspect reversible seat for damage. If one side is worn,
reverse seat.
Use o-ring (36) if replacing circulation valve 255278.
Use if recirculation valve is not used.
9
10
11
12
1
2
12
11
3
13
15
14
4
23
5
1
10
30
7
25
24
6
27
31
26
8
17
19
18
6
8
4
4
5
8
9
10
6
4
32
16
9
33
36
29
12
11
7
3
12
r_313259_313342_3
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