Installation, Operation and Maintenance Manual
Unimaster Dust Collectors – Series UMA 40-750
28
MAINTENANCE
A platform should be used when carrying out maintenance where the
position of the technician’s feet is greater or equal to 2 metres above
ground level.
Before any work is carried out, ensure the equipment is adequately
isolated and safe.
For ancillary equipment not manufactured by Donaldson, refer to
manufacturer's instructions.
If it is unavoidable to work on the equipment while a potentially explosive
atmosphere is present, care should be taken to avoid introducing ignition
sources not present during expected operation. Non-sparking tools
should be used.
Access to the dirty air chamber of the equipment may create risks and
hazards that under normal circumstances are not present and as such
this work must be carried out by competent personnel. These risks
include inhalation of dust and potential explosion hazards. Appropriate
personal protection equipment (PPE) should be used, e.g. dust mask,
safety hat, gloves etc.
In order to maintain the original collector specification and to ensure
the same level of safety, only genuine spare parts should be fitted.
Every care has been taken to avoid the risk of ignition of a flammable
atmosphere. The measures taken to avoid ignition should not be altered
since this may result in unsafe operation. Particular care should be taken
during maintenance and component replacement to ensure the same
level of safety is maintained. When replacing fan impellers, avoid any
rubbing of components (to prevent mechanical sparks).
Care should be taken during cleaning and maintenance to avoid
creating static discharges that have the potential to ignite a flammable
atmosphere.
When carrying out maintenance always follow typical best practice to
local regulations .
Routine inspection
To maintain the optimum performance of any Unimaster dust collector, a routine
inspection should be made to minimise down-time in the event of equipment
malfunction and to ensure the equipment is maintained to its original supply
condition.
Any abnormal change in pressure differential across the filter assembly indicates
a change in operating conditions and a fault to be rectified. For example, a fault
in the cleaning mechanism will cause an excessive build-up of dust on the filter
bags, resulting in a greatly increased pressure drop.
