®
Done
Hint!
Used seals must not be used again, since the proper function of the
seal can then no longer be ensured.
10.7.3 Exchanging the O-ring (TEFASEP gold)
Tools required:
•
O-ring cutter
•
Heat-resistant protective gloves
•
Oven (no microwave)
Caution!
Health hazard due to toxic fumes!
The O-ring cutter cuts the seal with a hot metal tip. At temperatures of more
than 300 °C, toxic fumes can be released.
► Avoid directly inhaling the fumes.
Caution!
Risk of injury due to hot and sharp-edged parts!
The O-ring cutter cuts the seal with a hot metal tip. This process heats up
the seal and possibly also metal parts of the valve.
► When removing the valve seat seal always wear heat-resistant protective
gloves.
Carry out the following steps:
1.
Place the heated metal tip of the O-ring cutter at right angles on the valve
seat seal to be removed.
2.
Cut through the valve seat seal at one point using the O-ring cutter.
!
Pay attention not to damage the edge of the radial groove.
Fig.29
3.
Take out the cut valve seat seal.
4.
Warm a new O-ring (TEFASEP gold valve seat seal) in the oven.
Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140 °C (guideline value)
Maintenance
Maintenance
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Summary of Contents for VARIVENT X
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