GESTRA UNA 38, Original Installation Instructions

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30
Attention!
Equipment may leak if the gasket is
damaged.
 Replace all gaskets that you loosen
during your work.

Use only new gaskets of the same
type.

Insert the sealing ring supplied with the manual
vent valve in the threaded hole in the body.

Screw the new manual vent valve into the
threaded hole.
The torque required for tightening differs depending
on the type of equipment.
 For the UNA 38, tighten the manual vent valve
to a torque of 70 Nm.
 For the UNA 39, tighten the manual vent valve
to a torque of 170 Nm.
Exchanging the float-lifting lever
You can replace a damaged manual lifting lever in
the UNA 38. For the UNA 39, this is not possible. To
replace, proceed as follows:

If necessary, remove the socket wrench.
 Slacken the hex bolt on the manual lifting lever
(29).
 Remove the manual lifting lever from the body.

Remove the sealing ring (28).
 For the disposal of the gaskets observe the
pertinent on-site regulations concerning waste
disposal.
Attention!
Equipment may leak if the gasket is
damaged.
 Replace all gaskets that you loosen
during your work.

Use only new gaskets of the same
type.
Attention!
The packing rings may get damaged.

Make sure you do not damage the
packing rings during installation and
removal.
 When installing and removing the
packing rings never use force.Make
sure that the packing rings are
correctly positioned and not skewed.

Insert the sealing ring supplied with the manual
lifting lever in the threaded hole in the body.

Screw the new manual lifting lever into the
threaded hole.

Tighten the hex bolt of the manual lifting lever to
a torque of 110 Nm.