English (GB)
7
4.1 Standard tools
4.2 Special tools
4.3 Torque tools
5. Checking of motor/failure analysis
As the reliability of submersible motors is very important, used
motors must be checked and then dismantled. By doing this the
cause of the fault can be identified, in case the motor has been
damaged. Always take care to thoroughly inspect, analyse and
document each individual components, both before and during
dismantling. Check the following points before dismantling :
• Check the motor for damage, fractures or the like.
• Check that the motor is filled with liquid and has no leaks at
the diaphragm or shaft seal.
• Check that the height from the shaft end to the contact face of
thread holes is 72.8 ± 0.2mm.
• Check that axial clearance is minimum 1 mm.
• Check that the motor shaft spins freely.
• Check that the plug pins for the cable connection are not
defective or burnt.
• Check that the winding resistance is as stated in electrical
data.
• Check that the motor insulation resistance complies with local
regulations. In case of motor repair, however, the resistance
must be at least 1 MΩ.
• Submerge the motor cable and the submersible drop cable in
water and check that there is no leakage in the cables.
• If the motor is connected to a control unit, type MP204, check
the signal from the temperature transmitter of the motor.
• Ohm the motor with the cable mounted on.
• Meg the motor with the cable mounted on.
• Ohm the motor with no cable, directly on the terminals.
• Meg the motor with no cable, directly on the terminals.
Pos. Description For pos. Part number
A Screwdrivers 32, 49 -
B Torx 20 screwdriver 22a, 50, 221 -
C Torx 25 screwdriver 45a, 46, 48, -
D Open-end spanner 17 mm 22 -
E Open-end spanner 19 mm 22 -
G Tee key 8mm 41 00SV0051
H Hexagon head driver 8mm 41 00SV0298
I Plastic mallet - -
J Slide gauge --
K Depth gauge 2 -
Pos. Description For pos. Part number
LJaws 2 00SV7900
M Torx 50 head driver (machined) 22 96164206
N Ring spanner (machined) 22 96164186
O Puller for rotating thrust bearing 7.5 and 27 kN 6 00SV0335
P Plug for puller I, 6 00SV7923
Q Puller for rotating thrust bearing 40 kN 6 00SV7920
R Punch for rotating thrust bearing 7.5 kN 6 96164233
S Punch for rotating thrust bearing 27 and 40 kN 6 96164234
T Bracket 1 96164181
U Spanner for shaft height adjustment 45b 00SV7921
V Punch for shaft seal 33, 34 V7216306
W Filling syringe 1 00SV8000
X Vacuum filling device 1 00SV0088
Y Spline head driver (torque measurement) 2, U 96164190
Z Shaft height gauge 2 00SV0115
Pos. Description For pos. Part number
AA Torque wrench 40-200Nm 00SV0400
AB Torque screwdriver 1-6 Nm
22a, 50, 221, 45a,
46, 48
00SV0438
AC Ratchet insert tool F 00SV0401
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