B&C Technologies IM Series Industrial Ironer - Manual (Page 110)

Caution
Caution
Caution
Caution
Etanorm SYA
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7 Maintenance / Repair
7.1 General Instructions
The operator is responsible for ensuring that all maintenance,
inspection and installation work is carried out by authorized,
duly qualified staff who are thoroughly familiar with these oper-
ating instructions.
A regular maintenance schedule will help avoid expensive re-
pairs and contribute to trouble-free, reliable operation of the
pump with a minimum of maintenance expenditure and work.
Work on the unit must only be carried out with the
electrical connections disconnected. Make sure that
the pump set cannot be switched on accidentally.
Pumps handling liquids posing health hazards must
be decontaminated. When draining the medium see
to it that there is no risk to persons or the environment. All
relevant laws must be adhered to.
7.2 Maintenance / Inspection
7.2.1 Supervision of Operation
After partial or complete drainage of the system, top up the
bearing bracket as described in section 6.1.3.
An insufficiently filled bearing bracket may
cause damage to the plain bearing and the
mechanical seal.
The pump must run quietly and free from vibra-
tions at all times.
The pump must never be allowed to run dry.
Max. admissible ambient temperature: 40 ° C.
The bearing temperature may exceed ambient temperature by
up to 50
° C but must never rise above +90 ° C (measured on the
outside of the bearing bracket).
Prolonged operation against a closed shut-off element is
not permitted, in order to avoid a heat build-up in the liq-
uid handled.
Minimum flow required see 6.2.3.
The shut-off element in the suction line must not be
closed during operation.
The mechanical seal shows only slight or invisible (vapour)
leakage during operation. It is maintenance-free.
Monitor the suction strainer and clean it whenever it shows
signs of clogging, to prevent the development of vacuum in the
pump’s bearing bracket and thus the risk of dry-running of the
bearing and mechanical seal.
The outside of the bearing bracket must be kept free from dirt in
order to make sure that the heat at the sealing chamber is re-
duced by the motor cooling air.
Any stand-by pumps installed must be switched on and then im-
mediately off again once a week to keep them operational.
Attention shall be paid to the correct functioning of the auxiliary
connections.
If the flexible coupling elements begin to show
signs of wear, they must be replaced in due time.
7.2.2 Lubrication and Lubricant Change
7.2.2.1 Lubrication
The deep-groove ball bearing is grease-lubricated. For the re-
quired quantity refer to section 7.2.2.3.
7.2.2.2 Grease Quality / Grease Change
The bearings are packed with high-quality lithium-soap grease.
Under normal conditions the fill should last for 15,000 operating
hours or 2 years. Under unfavourable operating conditions, e.g.
high room temperature, high atmospheric humidity, dust-laden
air, aggressive industrial atmosphere etc., the bearings should
be checked earlier and cleaned and re-lubricated, if required.
Use a high-quality lithium-soap grease, free of resin and acid,
not liable to crumble and with good rust-preventive characteris-
tics. The grease should have a penetration number between 2
and 3, corresponding to a worked penetration between 220 and
295 mm/10. Its drop point must not be below 175
° C. The bear-
ing cavities must only be half-filled with grease.
If required, the bearings may be lubricated with greases of other
soap bases. Since greases of differing soap bases must not be
mixed, the bearings must be thoroughly cleaned beforehand.
The re-lubrication intervals required must then be adjusted to
the greases used.
The generally applicable legal provisions for the
disposal of lubricants must be adhered to.
7.2.2.3 Deep-groove ball bearings / Lubricant quantity
Shaft unit 1) Code Lubricant per
bearing
25
35
55 6305 Z C3
6307 Z C3
6311 Z C3 approx. 5 g
approx. 10 g
approx. 15 g
1) For shaft unit / pump size combinations refer to section 7.6.1.
7.3 Drainage / Disposal
If the pump was used for handling liquids posing health
hazards, see to it that there is no risk to persons or the
environment when draining the medium. All relevant laws must
be heeded. If required, wear safety clothing and a protective
mask.
The flushing liquid used and any liquid residues in the pump
must be properly collected and disposed of without posing any
risk to persons or the environment.
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