Installation, Operation and Maintenance manual
18
PowerCore
®
Dust Collectors - Series CPV
If it is found necessary to replace a diaphragm, use the following procedure (see
figure 6):
Use service kit available from Donaldson.
1. Remove 6 mm diameter nylon tube (A) by pulling out from valve.
2. Remove the hexagon head set screws and shakeproof washers securing the
valve bonnet (B).
3. The diaphragm and spring (if fitted) can now be replaced, first ensuring the ‘bleed’
hole pin is not blocked.
4. Ensure that diaphragm fits over ‘bleed’ hole pin and that the nylon sealing washer
is inside throat of valve.
5. Position spring (if fitted) inside bonnet recess.
6. Refit bonnet ensuring spring (if fitted) locates over diaphragm disc shoulder and
bonnet locates over ‘bleed’ hole pin.
7. Refit and tighten the hexagonal head set screws and shakeproof washers.
8. Push-fit 6 mm diameter nylon tube back into valve.
A
B
1
2
1
diaphragm valve
2
manifold
Figure 5: Valve diaphragm replacement
Six-monthly
The fan impellor has been dynamically balanced and the fan assembly vibration level
should be in line with category BV-3, ISO 14694. An assessment of vibration should
be made every six months, or after a significant emission, or after any misuse and a
record kept of measured values. Excessive vibration levels should be investigated
and corrected immediately.
Vibration monitoring is mandatory on category 2G, 3G and 2D fan assemblies.
Annually
1. Moisture separator – Isolate the compressed air supply; remove and clean the
filter element.
