Maintenance Intervals; Maintenance Tasks - Homa K X R Serie Originalbetriebsanleitung

Only lubricants expressly recommended by the
manufacturer may be used. Oils and lubricants should
not be mixed. Only use genuine parts made by the
manufacturer.
A trial run or functional test of the machine must be
performed as instructed in the general operating con-
ditions.
Oil type: degradable HOMA-Atox. Used oil is to be dis-
posed accordingly.
When using white oil, note the following:
• The machine lubricants may only be topped up or re-
placed with lubricants from the same manufacturer.
• Machines which have previously been operated us-
ing other lubricants must first be thoroughly cleaned
before they can be operated using white oil.

6.2. Maintenance intervals

Before initial start-up or after a longer period of
storage:
• Checking the insulation resistance
• Fill level check in sealing room/chamber
• The axial face seal must be checked for damage.
Monthly:
• Monitoring the current consumption and voltage
• Checking the used relays for posistors, sealing room
monitor, etc.
Every six months:
• 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
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 control at pump types with oil chamber
• Visual control at pump types without oil chamber
8,000 operating hours or after two years, whichever
is earlier:
• Checking the insulation resistance
• Changing the lubricant in the sealing room/chamber
• Emptying the leakage chamber (not present in all
models)
• Functional inspection of all safety and control devices
• Coating check and touch-up as required
15,000 operating hours or after five years, whichever
is earlier:
• General overhaul
If it is used in highly abrasive or corrosive material, the
maintenance intervals should be reduced!

6.3. Maintenance tasks

Monitoring the current consumption and voltage
The current consumption and voltage is to be monitored
periodically during all 3 phases. This remains constant
during normal operation. Slight fluctuations are a result
of the composition of the pumped fluid. The current con-
sumption can assist in early detection and correction of
damage and/ or faulty operation in the impeller/propeller,
bearings and/or the motor. More extensive resulting dam-
age can thus be largely prevented and the risk of a total
failure can be reduced.
Checking the used relays for posistors, sealing room
monitor, etc.
Check the relays used are functioning fault-free. Defective
devices must be immediately replaced, because these
cannot ensure safe operation of the machine. The test
procedure details should be followed closely (in the oper-
ating instructions for each relay).
Checking the insulation resistance
To check the insulation resistance, the power supply ca-
ble must be disconnected. The resistance can then be
measured with an insulation tester (measuring voltage =
1000V DC). The following values may not be exceeded:
• The insulation resistance may not be below 20 MΩ
during initial operation. For all further measurements
the value must be greater than 2 MΩ.
• Insulation resistance too low: Moisture may have
penetrated the cable and/or the motor.
Do not connect the machine, consult manufacturer!
Visual inspection of power supply cables
The power supply line must be examined for bubbles,
cracks, scratches, chafed areas and/or crushed sections.
If damage is found, the power cable must be exchanged
immediately.
The cables may only be changed by the manufactur-
er or an authorized/certified service workshop. The
machine may not be used again until the damage has
been adequately rectified.
Visual examination of the cable holders (carabiners)
and the cable bracing
When the machine is used in basins or pits, the lifting
cables/cable holders (carabiners) and the cable bracing
are subject to constant wear. Regular inspections are nec-
essary in order to prevent the lifting cables/cable holders
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