Numatic HZC 390S-2 Instructions page 13

MAINTENANCE
All machine parts should be regarded as contaminated when removed from the hazardous area and
appropriate action taken to prevent dust dispersal.
Disconnect from the power supply during cleaning, maintenance or when replacing parts.
Ensure the plug is removed from the socket outlet.
Maintenance must be carried out in a suitable non hazardous area with facilities for cleaning the area after
servicing, and with suitable ventilation.
Maintenance and cleaning work must always be carried out by competent authorised personnel equipped
with suitable personal protection.
The cartridge filter must be taken out and checked for degree of contamination, and damage to seals.
If the cartridge filter is found to be damaged or badly contaminated, you must replace.
Items that can not be satisfactorily cleaned (e.g. filter) need to be disposed of in an impervious
plastic bag and disposed of in accordance with current regulations.
Replace the items that cannot be satisfactorily cleaned using approved manufacturer parts.
Regularly examine the supply cord for damage, such as cracking or ageing. If damage is found,
replace the cord before further use.
All parts of this vacuum are safety critical only replace with the genuine Numatic spare parts.
For user servicing, the machine must be dismantled, cleaned and serviced, as far as is
reasonably practicable, without causing risk to maintenance staff and others.
Suitable precautions include decontamination before dismantling, provision for local filtered exhaust
ventilation where the machine is dismantled, cleaning of the maintenance area and suitable personal
protection.
In class H machines the outside of the machine should be decontaminated by vacuum cleaning methods
and wiped clean or treated with a sealant before being taken out of the hazardous area and appropriate
action taken to prevent dust dispersal. (HSE Risk Assessment needed).
A qualified person must perform at least once a year - or more frequently if national requirements dictate -
the filtering efficiency of the filter cartridge must be checked, or the filter cartridge must be replaced, a filter
inspection to look for signs of damage, checking the tightness of the machine and correct operation of the
control mechanism.
Also the filtration efficiency should be tested at least annually, or more frequently as specified in
national requirements.
The test methods that can be used to verify the machine's filter efficiency are specified in EN 60335-2-69
Annex AA (AA22.201.2). If the test fails it should be repeated with a new cartridge filter.
Daily
Keep the machine clean, including hoses and tubes.
Ensure the bag and filter are fitted.
Regularly examine the power cord.
Check dust bag frequently.
Check filters are clean.
Weekly - as daily and:-
Check for any worn or damaged parts and replace immediately.
In the event of a breakdown contact your Numatic dealer
or the Numatic Technical help line +44 (0)1460 269268
GB