salmson LRE Notice De Montage Et De Mise En Service page 93

Screw tightening torque
10.2.2 Changing the drive
Installation and operating instructions LRE-JRE
• Pull the spacing ring (Fig. 5, Item 1.22) off the shaft.
• Pull the mechanical seal (Fig. 5, Item 1.21) off the shaft.
• Push the counter ring of the mechanical seal out of seating in the
motor flange and the clean the seating surfaces.
• Clean the seating surfaces of the shaft carefully.
Installation:
• Insert the new counter ring.
• Push the new mechanical seal (Fig. 5, Item 1.21) onto the shaft.
• Push the spacing ring (Fig. 5, Item 1.22) onto the shaft.
• Mount the impeller (Fig. 5, Item 1.11) onto the shaft.
• Push the new circlip (Fig. 5, Item 1.12) onto the pump shaft. -
• Insert a new O-ring (Fig. 5, Item 1.13).
• Insert the motor with impeller and shaft seal into the pump housing
and fasten using the flange screws (Fig. 5, Item 4).
• Install the pressure measuring lines of the differential pressure sensor.
• Connect the power cable.
• Open the check valves in front of and behind the pump.
• Reset the fuse.
• Observe the measures for commissioning (Section 9 "Commission-
ing" on page 81).
NOTE:
Observe the specified screw tightening torque for the thread type.
Screw connection
M6
Pump hous-
ing M10
—
Motor
Control ter-
minals
Power ter-
minals
Cable clips
Cover
Increased bearing noise and unusual vibrations are a sign of bearing
wear. The bearing or motor must then be replaced. The drive may only
be replaced by the Salmson customer service.
Tightening Installation
torque instruction
Nm ±10 %
10
Tighten evenly and
35 diagonally
0.5
0.5
0.5
0.8
English
86