Graco DV Series Instructions-Parts List Manual page 17

Dispense valves
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Disassembly
1. Follow Disconnect instructions, page 16.
2. Remove the outlet fitting (105) and o-ring
(105a).
101
105a
105
F
. 7
IG
3. Remove plug (112) and o-ring (137).
4. Use an o-ring pick to remove the two
o-rings (115) from the fluid housing (101).
5. Use a wrench on the air cap (104) flats and
remove from the air housing (102).
119
F
. 8
IG
3A1792A
115
137
112
ti16953a
104
102
r_v1m350_3a0412a_67b
6. Place a wrench on the ball housing (106)
flats and 6 mm Allen wrench in the top of
the piston rod (103). Remove the ball hous-
ing from the piston rod.
106
107
103
F
. 9
IG
7. Use a rubber mallet to drive the piston rod
(103) through the u-cup cartridge (107).
8. Remove the piston from the air housing
(102). Inspect the piston, piston rod, and air
housing for damage. Replace if necessary.
9. Remove retaining ring (113). Loosen the
locknut (109) and unthread the travel
adjuster (108).
10. Remove the o-rings (117, 118, 119, and
120).
117
102
103
113
104
F
. 10
IG
Repair
6 mm
Allen
wrench
118
119
120
108
109
121
120
ti16954a
17

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V1m320V1m350Dv v1m350

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