www.weg.net
Manual of Electric Motors
104
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All repair services on motors should be always performed by qualified personnel and in accordance with
the applicable laws and regulations in each country. Always use proper tools and devices for motor
disassembly and assembly.
Disassembly and assembly services can be carried out only after the motor has been disconnected
from the power supply and is completely stopped.
Dangerous voltages may be present at the motor terminals inside the terminal box since capacitors can
retain electrical charge for long periods of time even when they are not connected directly to a power source or
when space heaters are connected to the motor or when the motor windings are used as space heaters.
Dangerous voltages may be present at the motor terminals when they are driven by frequency inverter even
when they are completely stopped.
Frame
Poles
Bearing
designation
Oil
(liters)
Interval (h)
Lubricant
Lubricant
specification
IEC
NEMA
315L/A/B and
315C/D/E
5006/7/8T and
5009/10/11T
2
9-80
2.8
8000
Renolin
DTA 10
ISO VG32
mineral oil with
antifoam and
antioxidant
additives
355L/A/B and
355C/D/E
5807/8/9T and
5810/11/12T
400L/A/B and
400C/D/E
6806/7/8 and
6809/10/11T
450
7006/10
315L/A/B and
315C/D/E
5006/7/8T and
5009/10/11T
4 - 8
9-90
2.8
8000
Renolin DTA 15
ISO VG46
mineral oil with
antifoam and
antioxidant
additives
355L/A/B and
355C/D/E
5807/8/9T and
5810/11/12T
9-100
400L/A/B and
400C/D/E
6806/7/8 and
6809/10/11T
11-110
4.7
450
7006/10
11-125
500
8006/10
The lubricating oil must be replaced as specified on the nameplate or whenever changes on the oil properties
are noticed. The oil viscosity and pH must be checked periodically. The oil level must be checked every day
and kept in the center of the sight glass.
Please contact WEG, when oils with different viscosities are to be used.
Record the installation conditions such as terminal connection diagram, alignment / leveling conditions before
starting the disassembly procedures. These records should be considered for later assembly.
Disassemble the motor carefully without causing scratches on machined surfaces or damaging the threads.
Assemble the motor on a flat surface ensuring a good support base. Footless motors must be fixed/locked on
the base to prevent accidents.
Handle the motor carefully to not damage the insulated components such as windings, insulated rolling
bearings, power cables etc..
Seal elements, such as joint seals and bearing seals should always be replaced when wear or damage is
noticed.
Motors with degree of protection higher than IP55 are supplied with joint and screw seal Loctite 5923 (Henkel)
Clean the components and apply a new coat of Loctite 5923 on the surfaces before assembly.
8.3. MOTOR ASSEMBLy AND DISASSEMBLy
Table 8.6
- Oil properties for sleeve bearings
Page 175
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Страница 13: ...TAB 1 DEVICE DATA SHEETS ...
Страница 18: ...TAB 2 APPROVED SUBMITTAL ...
Страница 23: ...All data subject to change without notice 1 800 ASK 4WEG www weg net 14 ...
Страница 26: ...Your advantages our pumps ...
Страница 45: ...ADV 2 13E And what can we get flowing for you Your nearest contact Or visit www seepex com ...
Страница 117: ...TAB 3 INSTALLATION OPERATIONS AND MAINTENANCE ...
Страница 133: ...Page 37 ...
Страница 233: ...www weg net Manual of Electric Motors 64 ENGLISH Figure 2 1 IEC motor nameplate Page 135 ...
Страница 234: ...www weg net Manual of Electric Motors 65 ENGLISH Figure 2 2 NEMA motor nameplate Page 136 ...
Страница 306: ...TAB 4 AS BUILTS AND SUPPLEMENTAL INFORMATION ...
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