GESTRA BB 1, Original Installation Instructions

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18
Removing the equipment
To exchange the spring or the gasket you have to
remove the equipment.
You may not be able to move heavy
component parts in large equipment.
 In this case use suitable lifting / support
equipment and tools.
The load carrying capacity of lifting gear
and tools must at least be rated for the
total weight of the equipment.
 For more information on the weight of
the individual component parts please
contact the manufacturer.
DANGER
Risk of bruises if the equipment or
component parts fall down.
 Use suitable lifting gear when moving
or lifting the equipment and/or
component parts.
 Make sure that the equipment cannot
topple over.
 Make sure that nobody is standing
below the lifted equipment.
Attention!
Excessive loads may damage the closing
dampers.

Use the eye bolt for fixing lifting gear.
 Do not stress the closing dampers.
 Undo the nuts on the bolts.

Pull the equipment out of the flanges.
 Remove the gaskets from the flanges.
Removing springs from BB 1 and BB 3,
DN 50–125, DN 450–500
To mount and remove the spring you need the
following tools:

Socket spanner A. F. 13, 17, 19, 22, 24
DIN 3124

Hexagon socket spanner A. F. 5, 6, 10, 12, 17,
22, 24 ISO 2936

Torque spanner DIN ISO 6789

Flat pliers DIN ISO 5745

Stable cover for springs

Hinged face spanner A. F. 2 -8 (for equipment
with body lining made from Vestosint/hard
rubber)
The number of sealing screws depends on
the equipment type.
Small equipment features two sealing
screws next to the eye bolt.
Larger equipment has two additional
sealing screws on the other end of the
body.

Slacken the sealing screws (1) in the body.
 Take the sealing screws and the respective
gaskets out of the equipment.