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11.2 Dismantling the insert shaft
1 = Shaft clamp
2 = Insert shaft
3 = Motor shaft
1) Disconnect the inline pump from the mains both
electrically and mechanically.
2) Remove the pump.
3) Empty out the Pump and dismantle the pump
unit.
Wear safety gloves!
Risk of injury due to sharp edges on pump compo-
nents, i.e. impeller blades.
4) Dismantle the pump body and the pump foot
5) Loosen the screws on the shaft clamp (1) one
after the other.
Do not, under any circumstances, remove the
screws completely, danger of injury!
6) Pull the insert shaft (2) and the shaft clamp (1)
off the motor shaft (3).
11.3 Assembling the insert shaft and motor
shaft
ATTENTION
Clean the contact surfaces of the insert shaft (2)
(inside) and the motor shaft (3). They must not
be lubricated or oiled.
7) Set the motor down on the fan cover.
8) Position the shaft clamp (1) (use a new shaft
clamp) in the centre of the cranked clamping di-
ameter (2) of the insert shaft.
9) Insert the motor shaft (3) into the insert
shaft (2).
10) Tighten:
Mark the first screw and tighten all the screws
evenly by hand, one after the other in a clock-
wise direction (not cross-ways).
− Tighten the shaft clamp ( 24 mm) for SBA141,
SBA142 and SBF125
Use a torque screwdriver to tighten each screw
first with 1.3 Nm then with 2.6 Nm and finally
with 4 Nm (in a clockwise direction again).
BE8140
1
3
2
Edition 10/2021
− Tighten the shaft clamp ( 35 mm) for SBA143
Use a torque screwdriver to tighten each screw
first with 2 Nm then with 3.5 Nm and finally with
5 Nm (in a clockwise direction again)
Repeat the last turn (with 5 Nm) 3 times.
11) Mount the pump foot and the pump body.
The remainder of the reassembly process is to be
completed in the opposite order of the prior de-
scribed dismantling process.
ATTENTION
Note torques for the screw connections!
12) Position the pump laterally and fill the pump
blocking chamber (-GD) with oil until it reaches
the oil inspection window (27). Fit the sealing
ring (28) and screw on the screw plug (27)
When putting the pump back into use, make sure
the direction of rotation is correct!
Tightening torques for screwed connections
Thread - M5
Strength
4.8
classes
3 Nm
Tightening
Item 14, 16
torque
(Nm)
12 Disposal
When disposing of the pump or the packaging
materials the local and national regulation for
proper disposal must be complied with.
Prior to its disposal, the pump must be completely
drained and decontaminated if necessary.
M6
M8
M12
8.8
8.8
8.8
4.5 Nm
20 Nm
30 Nm
Item 83
Page 9 of 10
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