GESTRA BB 1, Original Installation Instructions

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
Lift the two plates (8) out of the body (1.).

Lift the plates or angle brackets (5) out of the
body (2.).
Removing springs from BB 2 and BB 3,
DN 150–400
To mount and remove the spring you need the
following tools:

Socket spanner A. F. 13, 17, 19 DIN 3124

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)
 Slacken the two threaded bolts (11) in the body
(1.)
 Turn the plates and the springs as shown in the
illustration (2.).
WARNING
The springs are preloaded and their
tension can cause injuries.

Always wear safety goggles when
replacing the springs.
 Mount or remove one spring after the
other.
 Make sure that no uninvolved persons
are standing in close vicinity of the
equipment.
For larger equipment use lifting gear to lift
the plates out of the body.

Insert two eye bolts in the bores for the
threaded bolts (11) in the plate
supports.

Attach lifting gear of sufficient load
bearing capacity to the eye bolts.