Replace Seals Or Repair Air Valve; Disassemble The Air Valve - Graco Dyna-Star 26A938 Instructions Manual

Replace Seals or Repair Air
Valve
NOTE:
• Air Valve Seal Kits are available. To order the
correct kit for the pump, see page 19 (parts are
marked with an †).
• Air Valve Repair Kits are available. To order the
correct kit for the pump, see page 19 (parts are
marked with an ).
• Air Valve End Cap Kits are available. To order the
correct kit for the pump, see page 19 (parts are
marked with an ).

Disassemble the Air Valve

1. Perform steps 1 - 4 from Replace Complete Air
Valve, page 10.
2. Use a 2 mm or 5/64 hex key to remove the two
screws (109) (F . 4).
IG
3. Remove the valve plate (105), cup (112), and spring
(111) (F . 4).
IG
105
112
109
F . 4
IG
Manual 3A7718A
111
4. Remove the snap ring (110) from each end (F
5. Use the piston and push the end caps (107) out of
each end (F . 5).
IG
6. Remove the end cap o-rings (106) (F
7. Remove the piston (102) (F
8. Remove the u-cup seals (108) from each end (F
5).
9. Remove the detent assembly (103) and detent cam
(104) from the center (F
103
1
1 112
109
105
Apply lubricant.
1
F . 5
IG
. 5).
IG
. 5).
IG
. 5).
IG
110
106
1
101
104
1
111
1
106
1
110
Repair
. 5).
IG
.
IG
107
108
102
108
107
11