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Manual of Electric Motors
103
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Table 8.5
- Oil properties for HGF vertical mounted motors with high axial thrust
8.2.2. Oil lubricated bearings
To change the oil of oil lubricated motor proceed as follows:
g
Switch-off the motor;
g
Remove threaded oil drain plug;
g
Open the valve and drain the oil;
g
Close the drain vale again;
g
Reinstall the threaded oil drain plug;
g
Fill-up with the type and amount of oil as specified on the nameplate;
g
Check oil level. The oil level is OK when the lubricant can be viewed approximately in the center of the sight
glass;
g
Reinstall oil inlet plug;
g
Check for oil leaks and ensure that all not used threaded plugs are closed with plugs.
The bearing lubricating oil must be replaced as specified on the nameplate or whenever changes in the oil
properties are noticed. The oil viscosity and pH must be checked periodically. The oil level must be checked
every day and must be kept in the center of the sight glass.
Please contact WEG, when oils with different viscosities should be used.
8.2.3. Oil mist lubricated bearings
Check the service conditions of the seals and if replacement is required use only original components. Clean
the seal components before assembly (bearing caps, end shields, etc.).
Apply joint sealant between the bearing caps and end shields. The joint sealant must be compatible with the
used lubricating oil. Connect the oil lubricant tubes (oil inlet and oil outlet tubes and motor drain tube), as shown
in Figure 6.12.
8.2.4. Sleeve bearings
The lubricating oil of sleeve bearings must be changed at the intervals specified in Table 8.6. To replace the oil,
proceed as follows:
g
NDE-bearing: remove the protection plate from the fan cover;
g
Drain the oil through the drain hole located at the bottom of the bearing (see Figure 8.1);
g
Close the oil drain hole;
g
Remove the oil inlet plug;
g
Fill the sleeve bearing with the specified oil and with the amount of oil specified in;
g
Check the oil level and ensure it is kept close to the center of the sight glass;
g
Install the oil inlet plug;
g
Check for oil leaks.
Note
:
The HGF vertical mounted motors with high axial thrust are supplied with grease lubricated DE-bearings and with oil lubricated NDE-
bearings. The DE-bearings must be lubricated according to recommendations in item 8.2.1. Table 8.5 specifies the oil type and the
amount of oil required for this motor lubrication.
M
o
u
n
ti
n
g - h
ig
h a
xi
al t
h
ru
st
Frame
Poles
Bearing
designation
Oil (liters)
Interval (h)
Lubricant
Lubricant
specification
IEC
NEMA
315L/A/B e
315C/D/E
5006/7/8T e
5009/10/11T
4 - 8
29320
20
8000
Renolin
DTA 40 /
SHC 629
ISO VG150
mineral oil with
antifoam and
antioxidant
additives
355L/A/B e
355C/D/E
5807/8/9T e
5810/11/12T
4 - 8
29320
26
400L/A/B e
400C/D/E
6806/7/8T e
6809/10/11T
4 - 8
29320
37
450
7006/10
4 - 8
29320
45
Oil sight glass
Oil inlet
Oil outlet
Figure 8.1 -
Sleeve bearing
Page 174
Содержание BN 5-12 Series
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 ...
Страница 307: ...R Page 29 ...
Страница 308: ...R Page 30 ...