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Fig. 18: Forked spacer for setting work
9.1
Air supply
9.2
Maintenance tasks
9.2.1 On-going maintenance
9.2.2 Replacing the mechanical seal
Changeover
50
NOTE:
For all installation work, the forked spacer (Fig. 18, item 10) is a man-
datory requirement for setting the correct impeller position in the
pump housing!
• The air supply to the motor housing must be checked at regular inter-
vals. In case of contamination, ensure that an air supply is re-estab-
lished in order to allow the motor to cool sufficiently.
DANGER! Risk of fatal injury!
Falling pumps or pump parts may result in life-threatening injuries.
• When performing maintenance work, protect the pump compo-
nents against falling.
DANGER! Risk of fatal injury!
There is a risk of fatal injury from electric shock when working on
electrical equipment.
• Check for absence of voltage and cover or cordon off adjacent live
parts.
Replace all gaskets that have been removed for maintenance.
There may be a slight amount of drip leakage during the running-in
period. Even during normal operation of the pump, slight leakage
involving occasional drops is common. Once in a while, however,
a visual inspection is required. If there is clearly detectable leakage,
the gasket is to be changed.
Salmson offers a repair kit which contains the necessary parts for
replacement.
Dismantling:
• Disconnect the system from the power supply and secure it against
being switched back on again.
• Make sure it is not live.
• Earth the work area and short-circuit.
• Close the shut-off device upstream and downstream of the pump,
• Depressurise the pump by opening the air vent valve (Fig. 1/2/3/4/5
item 1.31).
DANGER! Risk of scalding!
Due to high fluid temperatures there is a danger of scalding.
• If the fluid is hot, allow it to cool down before all work.
NOTE
When tightening screw connections in conjunction with the work
described in the following: Observe the screw tightening torque for
the thread type (see list "Table 5: Screw tightening torques" on
page 53).
• Disconnect the motor or mains connection cables if the cable for
dismantling the drive is too short.
• Dismantle the coupling guard (Fig. 1/2/3/4/5, item 1.32).
• Loosen the coupling screws (Fig. 1/2/3/4/5, item 1.5) on the coupling
unit.
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Salmson 11/2017