salmson LRE Installation Et Mise En Service page 111

Installation
Screw tightening torques
Part
Pump housing
—
Motor
Control terminals
Power terminals
Cable clips
Electronic module
Module cover
Tab. 9: Screw tightening torques
10.2.2 Replacing the motor/drive
Installation and operating instructions LRE, JRE
14. Push the counter ring of the mechanical seal out of seating in the
motor flange and then clean the seating surfaces.
15. Clean the seating surfaces of the shaft carefully.
NOTE:
For the following steps, observe the screw tightening torque speci-
fied for the respective thread type (see Tab. 9 "Screw tightening tor-
ques" below).
16. Insert the new stationary ring.
17. Push the new mechanical seal (Fig. 6, Item 1.21) onto the shaft.
Avoid damage to the mechanical seal due to jamming.
18. Push the new spacer (Item 1.22, see "Tab. 11: Spare part compo-
nents" on page 111) onto the shaft.
19. Push the rear retaining ring (Fig. 6, Item 1.12) onto the pump
shaft.
20. Mount the impeller (Fig. 6, Item 1.11) onto the shaft.
21. Push the front retaining ring (Fig. 6, Item 1.12) onto the pump
shaft.
22. Insert a new O-ring (Fig. 6, Item 1.13).
23. Insert the motor/drive with impeller and shaft seal into the pump
housing and fasten using the flange screws (Fig. 6, Item 1.4).
NOTE:
If a differential pressure sensor is installed on the pump, fix it in place
again when you fasten the flange screws.
NOTE:
Observe the measures for commissioning (chapter 9 "Commission-
ing" on page 95).
24. Reclamp the connection cable of the differential pressure sensor/
power cable if it was disconnected.
25. Open the shut-off devices in front of and behind the pump.
26. Reset the fuse.
Fig./Item Thread
Screw (nut)
M6
Fig. 6/Item 1.4
M10
Fig. 23/Item 4 -
Fig. 24/Item 7 -
Fig. 2 -
Fig. 6/Item 7 M5
Fig. 3 M4
• Carry out steps 1 to 7 to dismantle the motor/drive in accordance with
chapter 10.2 "Maintenance work" on page 100.
• Remove the screws (Fig. 6, Item 7.4) and tooth lock washers (Fig, 6,
Item 7.5) and pull the electronic module vertically upwards (Fig. 6).
• When installing the motor, follow steps 22 and 23 in chapter 10.2
"Maintenance work" on page 100.
Tightening torque Installation infor-
Nm ± 10% mation
(if not otherwise speci-
fied)
20 Tighten evenly and
35 diagonally
0.5
0.5
0.5
4.0
0.8
English
101