Nordson 25B - Air Valve Disassembly

© 2024 Nordson Corporation
1044131-06
6-2
25B Air Valve and Air Motor Repair
Air Valve Disassembly
See Figure 6-1. Remove parts from the valve body (41) in the following order:
1. Gaskets (51) and O-ring (47).
2. Screws (36), lock washers (37), snapper assembly (A), and gasket (40).
3. Screws (54) and lock washers (37).
4. End plates (53) and end plate washers (52).
36
37
A
40
52
54
37
53
51
47
51
41
53
52
37
54
End Plate
Notch
End Plate
Notch
Figure 6-1 Air Valve Disability
36. Screws (4) 47. O-ring 53. End plates (2)
37. Lock Washers (4) 51. Gaskets (2) 54. Screws (4)
40. Gasket 52. End plate washers (2) A. Snapper assembly
41. Valve body
See Figure 6-2. Finish removing parts from the air valve in the following order:
5. One screw (45) and poppet (50) from one side of poppet guide (49).
6. Screw (45) and end bushing (44).
7. Crankshaft (46).
NOTE:  If the crankshaft will not disengage from the arm easily, thread one of the screws
(45) into the end of the crankshaft and tap on the screw to push the crankshaft out of the
arm.
8. Arm (39).
9. Poppet guide (49) (you do not need to remove the other poppet from the guide unless
both are damaged).
10. O-rings (48) from valve body.