25
Please refer to the following table for the correct
torque.
GK 21
DN50
GK 11
DN65,
DN80
GK 11
DN100
GK 11
DN150
20 Nm
20 Nm
70 Nm
70 Nm
Tighten the hex nuts to the specified torque.
Fit the lid, as described on page 25.
Mounting the lid
Check all removed parts for signs of damage.
Replace all worn or damaged parts.
Clean all dirty parts.
You require the following tools to remove and fit the
lid:
Combination wrench to DIN 3113, type B (size
17, 18, 19, 24 or 30, depending on equipment
type)
Torque wrench to DIN ISO 6789
Temperature-resistant lubricant is required for
lubricating the system. The lubricant must have the
same properties as OKS 217.
Attention!
Equipment may not work properly or get
damaged if parts are tilted or skewed
when installed.
Use suitable lifting gear to mount the
component parts.
Do not tilt or skew the component
parts during installation.
During installation make sure that the
component parts are not damaged by
physical shocks.
The required bearing capacity of the lifting gear
depends on the equipment type. Contact the
manufacturer for more information on the weights
of the individual parts.
Check all removed parts for signs of damage.
Replace all worn or damaged parts.
Clean all dirty parts.
The gaskets of the equipment must be replaced
in any case.
Coat the thread and contact surfaces with
temperature-resistant lubricant.
The lubricant must have the same properties as
OKS 217.
