5. Maintenance and Servicing
WARNING! Be sure the power supply is disconnected and locked out
before attempting to do any maintenance on the unit. It is critical that the
unit be locked out from starting during maintenance as severe injury or
death could result from exposure to high voltage or rotating parts.
CAUTION! Allow the blower to cool to a surface temperature of less than
100 F before attempting maintenance. Prolonged exposure to
temperatures above 120F can cause severe burns.
Clean the blower surfaces periodically to avoid build up of dust or other debris.
Build up of debris can cause overheating and premature failure of the blower.
If an inlet filter is being use, ensure that it remains clean during operation by
examining the filter cartridge for debris build up. Replace dirty or clogged filter
cartridges.
On pressure units, periodically clean the inlet mesh screen to avoid loss of
capacity. If an external inlet filter is used,
the filter element should be cleaned
monthly or as frequently as required by
local conditions. Excessive pressure drop
will develop from use of clogged or dirty
filters. This pressure drop will degrade
blower performance and increase operating
temperatures, leading possibly to premature
pump failure.
To replace the filter, remove the wing nut
and cover. Remove the element and either
clean with compressed air or replace. Reassemble in reverse order.
For vacuum applications, the optional in-line vacuum filter must be cleaned
regularly, depending on local conditions. Cleaning can be achieved by blowing
out with compressed air. If cleaning is not possible, replace the cartridge.
Access the cartridge by unhooking the relevant clips and removing the cover.
CAUTION! Do not attempt to check the
filter cartridge during operation of the
blower. Only check the cartridge after
disconnecting the power from the blower
and locking out the power to prevent an
unexpected start.
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