SB-520-2
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10.8.4 SPI sensor
60 Nm, thread at sensor body. Mount with aluminium
gasket.
The SPI (slider position indicator) is mounted at com-
pressors starting at sizes HS.95, OS.95 and CS.105.
10.8.5 Set screws at shaft seals
Size
M5
3 .. 5 Nm
M6
5 .. 9 Nm
M8
10 Nm ①
M8
12 .. 18 Nm
①: only for OS.95
10.8.6 Locking screws of grooved nuts on shafts
The locking screws are set screws or cheese-head
screws depending on compressor design.
Size
M4
3.5 Nm
M6
3 .. 5 Nm
M8
5 .. 9 Nm
10.8.7 Fixing of electrical motor
The rotor of the electrical motor is fixed to the male ro-
tor shaft.
Central screw at shaft end
Size
M10
15 .. 20 Nm
M16
15 .. 20 Nm ①
①: Use only screws with Loctite or Precote85 coating.
Grooved nuts at the shaft
Size
M40 x 1,5
15 Nm
M50 x 1,5
15 Nm
10.8.8 Capacity control
Thread at piston rod
Size
M12
40 Nm
M16
100 Nm
M20
150 Nm
M25
220 Nm
▶ Coat thread with Loctite 648 and tighten with calib-
rated torque spanner to indicated torque.
Fixing at piston or piston rod
Size
M10
40 Nm
M16
100 Nm ①
M16
150 Nm
▶ Tighten with calibrated torque spanner to indicated
torque.
①: only for CS.7551, CS.7561 and CS.7571.
