Installation, Operation and Maintenance manual
21
DFPRE 6L Dust Collectors
In particularly aggressive environments, this period should be more
frequent.
4. If applicable, check collector earthing continuity.
5. If applicable, check measures taken to avoid ignition sources are still in place.
6. Open the clean air chamber access cover and, by looking through fan inlet eye,
inspect fan thoroughly. If necessary, remove all residual dust accumulation.
(Although the fan is located on the clean side of the collector, it is possible for
low quantities of dust to migrate through the filter media).
The fan should be inspected immediately after any period of significant
dust emission, i.e. due to damaged filter media or seal etc.
The fan should be inspected immediately if there is any unexpected noise,
temperature or vibration.
The fan should be inspected every twelve months or immediately following
any misuse.
If inspection reveals any damage then the fan must not be put back into
service until properly repaired or replaced.
Every 2 years
Replace filter cartridges (unless specified otherwise in Scope of Delivery). Refer to
Filter cartridge replacement.
Replace gaskets.
Valve disassembly/reassembly
Do not overtighten pipe connections.
Refer also to figure 9.
1. Switch off the compressed air.
2. Open the clean air access door.
3. Using screwdriver unscrew 4 screws to remove bonnet from valve.
4. Diaphragm assembly is now accessible for cleaning or replacement.
When replacing diaphragm assembly ensure the marking “THIS SIDE OUT”
faces valve bonnet and bleed hole is in alignment with cavity in vlave body
and bonnet. The external contours of diaphragm, body and bonnet must all be
in alignment.
5. Replace bonnet and tighten screws according to torque chart (16 Nm ± 2Nm).
6. After maintenance, operate valve a few times to ensure proper operation.
