— Relieve the pressure in the Börger machine according to
Chapter 6.1.2 “Pressure relief” on page 109
— Open the quick-release cover in accordance with
6.3.2 “Opening and closing the quick-release cover”
on page 125
— Clean the interior of the Börger machine as described in
Chapter 6.1.3 “Cleaning the inside” on page 111
.
NOTE!
The easiest way to remove the casing liners is to first
remove the rotors as detailed in
removal and replacement” on page 128
.
1.
If necessary, remove the rotors according to
“Rotors, removal and replacement” on page 128
depending
on the rotor type.
2.
Take precautions, especially for pumps turned 90°, to ensure
the clamping parts (3) cannot fall into the pipe when they are
loosened.
3.
Loosen the clamping parts (3) used to fix the casing liners (5)
in the pump casing.
To do this, loosen the hexagon socket head cap screws (1)
above and below the inlet and outlet openings.
The clamping parts (3) may not always loosen easily due to
deposits of the pumped medium. In most cases, hitting the
screw head lightly will loosen the clamping parts.
4.
In order to prevent the rim [S] between the pump opening and
O-ring groove (6) from being damaged, remove the O-ring (4)
and clamp a parallel key [P] or a similar object in the O-ring
groove (6) before using any tools.
5.
To remove the corresponding casing liner (5), lever out the
liner carefully using a small lever or slotted screwdriver.
Maintenance and Repairs
BA-Classic FL_en-US, 03.05.2018
www.boerger.de / www.boerger.com
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