FlaktWoods AEROFOIL AXIAL FAN Safety Installation And Maintenance Instructions page 12

TABLE 1
Routine Maintenance
Schedule
1. Examine the airways in to
the fan guards (if fitted)
2. Examine motor cooling fins
3. Examine impeller for dirt
build-up or 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),
and temperature sensors (if
fitted)
6. Examine condition of
safety guards (if fitted) and
their fixings
7. Check operation of
anti-condensation heaters (if
fitted)
8. On 'bifurcated' motors
remove the impeller and
inspect the packing located
behind the motor shaft-seal
retaining plate
9. Examine the clearance
between the fan impeller
blade tips and the fan duct.
Check the angle, and the
security of the impeller
blades
10. Check torque of fan-to-
support fixings
11. Examine motor, fan and
ancillary equipment fixings
12. Check movement of
vibration isolators (if fitted)
13. Check motor voltage and
current consumption
14. Inspect paintwork /
galvanising
15. Grease motor bearings
16. Check fan assembly
wiring
Every 6 Months Every 12 Months
*
*
*
*
*
*
*
*
Remove and 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
Switch off power to the motor. Check that
the anti-condensation heater is energised
(drawing current)
Replace the 130mm Duramid seal if it is
damaged
* Ensure that the gap between the impeller
blade ends and the fan duct is even and
adequate. If in doubt about the gap contact
Flakt Woods for advice. Ensure that the
impeller blade is secure. The blade angle
must not be changed before contacting
Flat Woods Ltd for advice
* It is essential to confirm that all fixings are
properly fitted, are tight, and are fully
driven home (see Paragraph 6.1) If in doubt
about the torque of a fixing contact Fläkt
Woods Ltd for advice
* It is essential to confirm that all fixings are
properly fitted, are tight, and are fully
driven home (see Paragraph 6.1) If in doubt
about the torque of a fixing contact Fläkt
Woods Ltd for advice
* 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 in accordance with
paragraph 6.3
* Check security and condition of all wiring
(including the earth)
9
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