Routine maintenance schedule
1. Examine the airways into the fan
guards (if fitted).
2. Examine motor cooling fins.
3. Examine impeller for dirt build-up
and for any physical damage.
4. Check condition and tautness of fan
safety support chains/harnesses/
ropes (if fitted).
5. Examine and operate vibration
sensors (if fitted), level switches
(if fitted), and temperature sensors
(if fitted).
6. Examine condition of safety guards
(if fitted) and their fixings.
7. Examine the clearance between
the fan impeller blade tips and the
fan duct. Check the angle, and the
security of the impeller blades.
8. Examine motor, fan and ancillary
equipment fixings.
9. Check movement of vibration
isolators (if fitted).
10. Check motor voltage and current
consumption.
11. Inspect paintwork/galvanising.
12. Grease motor bearings.
13. Check fan assembly wiring.
Every 6
Every 12
months
months
*
Remove any debris that may have
accumulated round the guards.
*
Remove any material / dirt build-up
between the motor fins.
*
Remove any build-up of dirt. Ensure
impeller is secure. Replace impeller
if it is damaged.
*
Clean safety supports. Replace them
if there is any deterioration/corrosion.
*
Check operation using built-in sensor
test features or dummy signals. Check
that the fan is automatically switched
off, or a warning indication is provided,
when the sensors/switches indicates
a fault.
*
Clean safety guards. Replace them if
there are any signs of damage.
*
Ensure that the gap between the
impeller blade ends and the fan duct
is even and adequate. In doubt about
the gap contact Novovent for advice.
Ensure that the impeller blade is secure
The blade angle must not be changed
before contacting Novovent for advice.
*
It is essential to confirm that all fixings
are properly fitted, are tight, and are
fully driven home.
*
Check freedom of movement. Tighten
fixings if necessary.
*
Ensure voltage and full load current are
as specified on the motor nameplate.
*
Treat any areas of damage with suitable
anti-corrosion paint.
*
Check requirement.
*
Check security, and condition, of all
wiring.
14
Comments