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Inlet Valve (Body) Inspection -
The valve does not require maintenance or lubrication. If air/oil leaks
develop across the valve disc during pressurized conditions (e.g., machine stopped), valve seals should
be inspected for wear and tear signs:
1. Be sure the unit is completely off and oil sump is depressurized.
2. Disconnect, lockout and tagout power supply to the compressor package.
3. Close (when provided) valve isolating compressor package from air system.
4. Refer to Figure 9- 1 and Figure 9- 6 for hardware details.
5. Loosen and remove the air filter housing cover and remove the filter element.
6. Remove four bolts securing inlet flange to the compressor body and remove the flange.
7. Remove the poppet assembly and the poppet return spring.
8. Unscrew the valve body from the compressor housing using the hex pattern provided on the
valve body - See Figure 9- 2 for details.
9. Inspect poppet seal (o-ring) (5) for wear and tear.
10. In case of noted malfunction (e.g., valve will not open/close properly with good air signal),
proceed to dismantle internal piston assembly.
a.
Remove lock ring to release piston assembly.
b.
Inspect the piston seal and piston return spring. If any component is found worn or damage,
replace the complete valve
c.
Re-assemble the piston assembly in reverse order.
11. Reassemble inlet valve in reverse order.
Figure 9- 2 – Inlet Valve Body Hex
Summary of Contents for APEX15-18A
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Page 31: ...13 25 607 Page 29 Figure 4 6 WIRING DIAGRAM VS 575 VOLT 307UCC546 A Ref Drawing Page 1 of 4...
Page 32: ...13 25 607 Page 30 Figure 4 7 WIRING DIAGRAM VS 575 VOLT 307UCC546 A Ref Drawing Page 2 of 4...
Page 33: ...13 25 607 Page 31 Figure 4 8 WIRING DIAGRAM VS 575 VOLT 307UCC546 A Ref Drawing Page 3 of 4...
Page 34: ...13 25 607 Page 32 Figure 4 9 WIRING DIAGRAM VS 575 VOLT 307UCC546 A Ref Drawing Page 4 of 4...
Page 37: ...13 25 607 Page 35 Figure 4 10 PIPING AND INSTRUMENTATION ILLUSTRATION 301UCC797 F Ref Drawing...
Page 60: ...13 25 607 Page 58 Figure 9 6 Compressor Module Hardware 308UCC810 C Ref Drawing Page 1 of 1...
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