Homa CHRS.../4 series, Original Instruction Manual, Page: 46 / 76

46 | EngliSH
8.6. Start-up
If all the required and previously described installations,
safety and process instructions are carried out, then the
pump system must be taken into operation by an electri-
cal technician and tested as follows:
Caution! In order to ensure that the pump system ac-
tually works as described in Para 2.2.3 of the applica-
tion conditions, a measurement of the power
consumption (KW)) is to be carried out and checked
with the information in the table in Appendix 1. As the
pump first pumps into an empty pipe system, a higher
power consumption will be set at the start of the
pumping, depending on the height and length. Let the
pump continue until a final and stable power
consumption is set.
If the power consumption is within the given pow-
er limits of the motor then the explosion-protected
submersible motor pump can be finally taken into
service. If it is then seen that the power consump-
tion is outside of the given power limits of the mo-
tor, then the explosion-protected submersible motor
pump must not be taken into service. In this case the
pipe characteristic of the installed pressure pipe is to
be calculated and determined. The actual operating
point of the plant can be determined with the use of
the in-house HOMA HOPSEL pump design program.
For safe and ex-conformity start-up contact an em-
ployee of the HOMA Company!
8.7. Repair, servicing and interventions into
explosion-protected submersible motors
For repairs or interventions, first observe the safety de-
terminations, especially those relevant for ex-protective
aspects as described above.
Who is permitted to repair ex-equipment?
Caution! Repair measures must only be carried out
by the works customer service or persons delegated
by us or workshops with an officially recognized „Au-
thorized person“
Gap dimensions
Caution! In the case of external repairs it is neces-
sary to obtain information on the model type approval
and the particular conditions, e.g. gap dimensions.
Gap surfaces must not be worked on!
Servicing intervals of ball bearings
Caution! Besides the operating instructions for servi-
cing intervals for non-explosion-protected submer-
sible motor pumps, the ball beatings must be repla-
ced at the latest after 25,000 hours. Depending on the
type of operation of the submersible motor pumps,
this time can be achieved in approximately 4 years.
Spare parts
Caution! In the purchasing of spare parts use only
the original spares mentioned in the appended parts
list. Especially the seals and cables are created in
part from temperature and aging-resistant materials.
Cable connection after repair
Caution! The cables are to be connected according
to the wiring diagram for the explosion-protected
submersible motor pumps to the ex-terminal board or
to the flameproof conductor bushing.
8.8. Technical data
For details see the general operating instructions with
data sheets. The data in the original type plate placed on
the machine should be entered In the adjoining depicti-
on of the type plate in order thus to be available for any
queries.