Maintenance; General; Maintenance Intervals; Maintenance Tasks - Homa C237 WF3 Original Instruction Manual

5.7.1. After switching on
The rated current is surpassed quickly during the start-up process. After termination of this process the work
current should not exceed the rated current. If the motor does not start immediately after switch-on, it must be
switched off immediately. Before further switch-on the switch pauses according to the technical data must be
complied with. In the event of a further interference the machine must be switched off immediately. A further
switch-on process may only be started after recovery of the fault.
The following points should be checked:

operating voltage (permitted deviation +/- 5% of the rated voltage)

Frequency (permitted deviation -2% of the rated frequency)

Power input (permitted deviation between the phases maximum 5%)

Voltage difference between the individual phases (maximum 1%)

Switching frequency and pauses (see technical data)

Minimum submersion in water, level control, protection against dry run

Smooth run

Check for leakages, if appropriate take the necessary steps according the chapter 'maintenance'

6. Maintenance

6.1. General

The pump as well as the entire system must be inspected and maintained at regular intervals. The interval of the
maintenance is determined by the manufacturer and applies for the general conditions of use. The manufacturer
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
carried out with due diligence, at a safe working place and by trained qualified personnel. The
required protective 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 equipment of the hand winch are technically sound. The work
must only be started when the auxiliary hoisting gear is technically in order. Failure to carry out these
checks may jeopardize your life!

If easily inflammable dissolvers and cleaning materials are used, open fire, open light as well as
smoking are prohibited.

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!

6.2. Maintenance intervals

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.

6.3. Maintenance tasks

Check of the used switchgears for resistance, sealed space control etc.
Check the used switchgears for correct function. Defective devices must be replaced immediately, since the do
not ensure protection of the machinery. Instructions for the test procedure must be followed (operating
instructions for the respective switchgears).
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