Seal Chamber - Homa TPM Originalbetriebsanleitung

Visual inspection of the power supply leads
The power inlet leads must be inspected for bubbles, cracks, scratches, scour marks and/or crushing zones. If
damages are detected, the damaged power inlet lead must be replaced immediately.
The leads may only be replaced by the manufacturer or an authorised/certified service workshop. The
machinery must only be started after appropriate repair of the damage!
Visual inspection of the cable holders (biners) and the wiring (traction cable)
If the machine is used in basins/shafts the hoisting wires/cable holders (biners) and the wiring are subject to
constant wear and tear. Regular inspections are required to prevent a complete wear and tear of the hoisting
wires/cable holders (biners) and/or wiring and a complete damage to the power cable.
The hoisting wires/cable holders (biners) and the wiring must be replaced immediately if there are slight
signs of tear and wear!
Visual inspection of accessories
The accessories, such as for example suspension devices, lifting devices, etc. must be checked for correct fitting.
Loose or defective accessories must be repaired/replaced immediately.
Visual check for pumps with oil barrier chamber
Oil level and oil condition:
The condition of the axial face seals can be checked by visually inspecting the oil. To do so, proceed as follows:

Position pump vertically and unscrew the Allen screws (Pos914.01).

Lift the motor off of the pump casing.

Unscrew the hexagon nut (Pos.922) and remove the impeller from the motor shaft.

Position the motor with the shaft end facing up and loosen the connecting screw (Pos.903).

Remove a small amount of oil. If the oil is milky or cloudy, this indicates a defective shaft seal. In this
case, have the condition of the shaft seals checked by a HOMA specialist workshop or the factory
Customer Service department.
Oil type: biodegradable HOMA-ATOX. Used oil must be disposed of in accordance with the valid environmental
regulations.
Overhaul
During an overhaul, in addition to normal maintenance work, the motor bearings, shaft seals, O-rings and the
power supply lines are also checked and replaced if necessary. This work may only be performed by the
manufacturer or an authorised/certified service workshop.
Changing operating fluid
The drained operating fluid must be checked for contamination and water additions. If the operating fluid is
seriously contaminated and more than 1/3 of the fluid is water, the fluid exchange must be repeated again after 4
weeks. If water is still present in the operating fluid, a seal may be defective. Please consult your manufacturer.
When using sealing chamber or leakage monitoring, in the event of a defective seal, the display will light up again
within the next 4 weeks after the exchange.
Generally, the following applies when changing operating fluid:
Turn off machine, allow it to cool, disconnect from the power supply (to be carried out by a specialist!),
clean and place on a solid surface in a vertical position. Warm or hot operating fluid may be under
pressure. The emergent operating fluid may cause burns. Therefore, allow the machine to cool to ambient
temperature first! Secure against tipping over and/or sliding!

6.4. Seal chamber

In order to access the seal chamber, remove the pump casing and the impeller as described in "Visual inspection
for pumps with an oil barrier chamber".

Carefully and slowly unscrew the sealing chamber's locking screw (Pos.903).
Attention: The operating fluid may be under pressure!

Unscrew the locking screw. Drain the operating fluid and collect in a suitable container. Clean the locking
screw, equip with a new seal ring and tighten again. To completely empty the machine, it must be placed
vertically.
Ensure that the machine cannot tip over and/or slide away!

Position the machine so that the shaft end is pointing upward; fill with operating fluid. Observe the
described operating fluid and fill quantities.

Clean the locking screw, equip with a new seal ring and tighten again.
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