Maintenance Schedule; Preventice Maintenance Work - Homa TPM Originalbetriebsanleitung


Machines which circulate hazardous materials or come into contact with these must be
decontaminated. It is also important to ensure that no hazardous gases form or are present.

Ensure that the required tools and materials are readily available. Tidiness and cleanness ensure
safe and proper work on the machinery. Remove used cleaning 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
Avoidance 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 lubricants must not be mixed. Only use manufacturer's 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 – operating fluid must reach up to the lower edge of the fill
opening

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.
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 secondary damages can be prevented with this and the risk of a total failure can be reduced.
Testing of insulation resistance
To check the insulation resistance, the power supply cable must be disconnected and the pump has to dismantle
to ckeck the measure in the motor winding. Then, the resistance can be measured using an insulation tester
(measuring DC voltage is 1000 volts). The following values must be met:
During commissioning, the insulation resistance of 20 MΩ must be met or exceeded. For additional
measurements, the value must be larger than 2 MΩ. Insulation resistance is too low: Moisture may have
penetrated into the cable and/or the motor.
Do not connect machine; consult the manufacturer!
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