Repair; General; Maintenance Schedule; Preventive Maintenance Work - Homa TGR Manuel D'instructions Original

6. Repair

6.1. General

The pump as well as the entire system must be inspect-
ed and maintained at regular intervals. The interval of the
maintenance is determined by the manufacturer and ap-
plies for the general conditions of use. The manufactur-
er must be contacted in the event of aggressive and/or
abrasive pumped mediums, since the interval could be
shortened in these cases.
The following points must be noted:
• The operating instructions must be available to the
maintenance personnel and must be followed. Only
maintenance work and measures listed here must be
carried out.
• All maintenance work, inspection work and cleaning
work on the machinery and the system must be car-
ried out with due diligence, at a safe working place
and by trained qualified personnel. The required pro-
tective gear must be worn. The machinery must be
disconnected from the power supply for all work.
Unintentional start must be prevented. Furthermore
the respective protective measures according to the
Employers' Liability Association regulations, BGV/the
Statutory Accident insurance, GUV must be complied
with when working in basins and/or containers.
Ensure that sling gear, ropes and the safety equip-
ment of the hand winch are technically sound. The
pump must be disconnected from the mains before
beginning work!
• Electric works on the machinery and the system
must be carried out by a specialist. For ex-ap-
proved machines, you must also observe the „Ex
protection" section in the annex!
• If easily inflammable dissolvers and cleaning materi-
als are used, open fire, open light as well as smoking
are prohibited.
• Machines which circulate hazardous materials or
come into contact with these must be decontaminat-
ed. It is also important to ensure that no hazardous
gases form or are present.
• Ensure that the required tools and materials are read-
ily available. Tidiness and cleanness ensure safe and
proper work on the machinery. Remove used clean-
ing materials and tools from the machinery after the
work has been carried out. Keep all materials and
tools in a dedicated place.
• Service media (such as for example oils, lubricants,
etc.) must be captured in a suitable container and
must be disposed of according to the regulation
75/439/EEC and writ §§5a, 5b abfG, Waste Avoid-
ance and Management Act). Respective protective
clothing must be worn when carrying out cleaning
work and maintenance work. This must be disposed
of according to waste catalogue TA 524 02 and EC
directive 91/689/EEC. Only lubricants recommended
by the manufacturer must be used. Oils and lubri-
cants must not be mixed. Only use manufacturers
original parts.
A test run or function test of the machinery must only
be carried out according to the general operating
conditions!
Oil type: Biodegradable HOMA ATOX. Used oil must be
disposed of properly.
When using white oils, please observe the following:
• For refilling and/or initial filling, only operating fluids
by the same manufacturer may be used.
• Machines that were previously operated with other
operating fluids must be cleaned thoroughly before
they can be operated with white oils.

6.2. Maintenance schedule

Before commissioning or after prolonged storage:
• Testing of insulation resistance
• Fill level check of the seal chamber
• Axial face seal must be checked for damage.
Monthly:
• Check of the power input and voltage
Every six months:
• Visual inspection of the power supply leads
• Visual inspection of the cable holders and the wiring
• Visual inspection of accessories, such as for example
suspension device, lifting devices, etc.
1,000 operating hours or after every six months, whi-
chever is earlier:
• Monitoring the current consumption and voltage
• Checking the used relays for posistors, sealing room
monitor, etc.
• Visual inspection of the power supply cable
• Visual inspection of the cable holder and the cable
bracing
• Visual inspection of accessories, e.g. the suspension
device and hoisting gears
3,000 operating hours:
• Visual check for pumps with oil barrier chamber
8,000 operating hours or after 2 years at the latest:
• Testing of insulation resistance
• Operating fluid change in seal chamber
• Inspection and repair, if necessary, of the coating.
15,000 operating hours or after 5 years at the latest:
• General factory overhaul
When used with highly abrasive and/or aggressive
media, the maintenance intervals shorten.

6.3. Preventive maintenance work

Check of the power input and voltage
The power input and voltage for all three phases must be
checked regularly. In normal operation mode this remains
constant. Slight fluctuations depend on the properties of
the pumped medium. Based on the power input damages
and/or malfunctions of the impeller/propeller, bearing and/
or motor can be detected and repaired early. Major sec-
ondary damages can be prevented with this and the risk
of a total failure can be reduced.
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