© 2024 Nordson Corporation
1044131-06
6-4
25B Air Valve and Air Motor Repair
grease before installing.
Figure 6-3 Snapper Repair
29. Snapper 33. Spacer 38. Bracket
30. Spring 34. Lock washer 55. Screw
31. Fork 35. Nut 56. Washer
32. Ball Stem
Air Valve Assembly
Follow these guidelines when reassembling the air valve:
• Remove and replace all O-rings and seals
• Lubricate all O-rings with O-ring lubricant before installation
•
• Tighten the screws securely
See Figure 6-2 on page 6-3. Reassemble the air valve in the following order:
1. O-rings (48) in valve body bore.
2. Poppet guide (49), with one poppet (50) and screw (45) installed, in valve body (41).
3.
4. O-ring (42) on crankshaft (46), crankshaft into body and through arm.
5. O-rings (42, 43) on end bushing (44). O-ring (43) goes inside end bushing. End
bushing into body, secure with screw (45).
6. Remaining poppet (50) on poppet guide, secure with screw (45).
See Figure C 1-1 on page C 1-2. Complete the air valve assembly by installing these
parts in the following order. Tighten all fasteners securely.
7. End plate washers (52) in end plates (53).
8. End plates on valve body, with notches oriented as shown in the front view. Secure
with screws (54) and lock washers (37).