Maintenance - Vortice VORT QBK Notice D'emploi Et D'entretien

ENGLISH
the data on the ID plate. If it is higher, trace the
cause by checking that:
- the motor and fan blades can rotate
- the fan speed is as it should be;
- airflow is not higher than the appliance nominal
value;
- the power supply is correct.
• Make sure that any shielding protecting moving
parts is properly fitted in place.
• Check that the filter has not been damaged during
transport or handling and that it is intact and clean.

Maintenance

Apart from observing legal requirements relating to
accident prevention, maintenance staff must also
make sure they are wearing suitable PPE and using
ear protectors if noise emissions exceed the
permitted levels.
Safety systems
The safety systems required to comply with the EC
Machinery Directive relating to this appliance must be
tested at least once every 90 days.
The test must conform that the safety systems fitted
are working properly and are reliable.
To perform a valid test:
1. using the documents supplied with the appliance,
find out what safety devices and construction
adaptations apply
2. take all the necessary precautions and, when the
appliance is operating normally, cause the safety
systems to cut in one at a time. Make sure that the
power supply to the appliance cuts out and that all
moving parts come to a stop (by opening the
inspection panel); repeat this operation twice but
not consecutively with all the safety devices fitted
to the appliance.
3. check that the static and passive safety systems
are properly positioned and fastened in place;
check especially that shields protecting moving
parts are properly fastened in place and can only
be removed using special tools.
Records must be kept of these 90-day checks and
must show the outcome of the tests carried out.
Motor, fan and trasmission
The motor and fan bearings are sealed units and need
no lubrication.
Only a few large fans are mounted on bearings that
are fitted with grease nipples. Such bearings need to
be lubricated once a year with lithium grease using
the following procedure:
1. to avoid introducing dirt into the system, carefully
clean the grease nipple before connecting the
grease gun;
2. use moderate pressure to feed grease into the
system but make absolutely certain that none
escapes from the seal;
3. rotate the fan blades for a few seconds.
Every 30 days, check the drive belts for wear and tear
and test the tension as follows:
1. Remove the protective cover;
2. Measure the length of the free section of belt "D"
freely; (Fig. 14);
3. Apply a force of "F" to the middle of the belt. This
reading is given in the table in Fig. 14 as part of the
section regarding the drive belt fitted (see
"Technical Sheet");
14 14
Drive belt
section
A
B
C
D
4. measure the arrow "C" in the middle of the free
section that should be 1.5 mm for every 100mm of
length "D" ( C = 1.5 x D/100);
5. if "C" is less (belt too tight) adjust using screw "A"
(see Fig. 15) bringing the motor closer to the fan, if
"C" is more (belt too slack) use screw "A" to adjust
it by increasing the distance between the motor
and the fan;
6. when force "F" and arrow "C" are as they should
be, replace the protective cover on the drive
system and tighten up all the screws.
Minimum force F Maximum force F
N(Kg)
7 (0.7) 10 (1)
16 (1.6) 24 (2.4)
29 (2.9) 47.5 (4.75)
57 (5.7) 86 (8.6)
N(Kg)
19