ERPN-M USER INSTRUCTIONS ENGLISH 02-08
Page 19 of 37
5.2.4.3 Adjusting of TRICO Constant Level Oiler
If the pump is fitted with a Constant Level Oiler type
„TRICO“, the correct oil level has to be checked after
fitting the pump! Dimension
a
is the distance from the
centerline of the pump to the minimum oil level (marks
at the bearing housing).
1 Trico-Oiler
2 fixing
screw
3 levelling
screw
4
oil sight glass
5
oil drain
6
counternut
a) To check quickly the correct oiler adjustment,
measure the dimension x from the oiler-rim to the
minimum oil level (lower mark at the bearing
housing). After that check the dimension from the
oiler rim to the adjusting screw and compare it
with the dimension x, if required turn the adjusting
nut with tolerances of plus 0 mm and minus 2 mm
(see figure), and fix it.
b) Additionally you can check the correct oiler
adjustment by an oil sight glass (minimum oil
level is the middle of the oil sight glass).
Size of
Bearing
Frame
Cylindrical roller
bearing [476]
Angular contact ball
bearing [477]
Dimension
„a“ mm (in)
1
NU 207
6306 - C3
28 (1.1)
2
NU 207
6306 - C3
28 (1.1)
3
NU 309
6309 - C3
40 (1.58)
4
NU 309
6309 - C3
40 (1.58)
Refer to nameplate or part list, to reading
the correct frame size.
5.2.5 Oil quality
Oil used for lubrication should only be of high quality.
The viscosity of the oil at working temperature must
be at least 10 cSt. The pouring point of the oil must
be in accordance with the lowest expected
temperature of the bearing housing during a stop of
the pump. For recommended lubricating oils refer to
the lubrication table.
Having selected the corresponding oil quality the
actual oil temperature at the bearing housing must be
checked after two service hours of the pump.
Considering this measured oil temperature the actual
viscosity must be determined by using the data sheet
of the oil, to verify the minimum required viscosity of
10 cSt. Do not forget, the oil temperature in the
bearing itself is about 10 °C (50 °F) higher than the oil
temperature at the bearing housing. On the following
table the oil viscosity is given at 40 °C (104 °F).
Determining the correct lubricating oil one must take
into consideration that all bearings will have higher
temperatures during the first 20 service hours. In
constant operation the bearing temperature will
decrease about 10 °C (50 °F). The oil temperature
shall be lower than 85 °C (185 °F) after this running-
in time. If the temperature is higher, the reason may
be a wrong oil quality, wrong oil level or overload of
the pump because of excessive wear.
If the humidity at the site is high, the roller bearings
become easily rusty during stand still periods. To
avoid that, we recommend to mix the lubricating oil
with a corrosion inhibitor contact your lubrication oil
supplier for propper additives inhibitors.
5.2.6 Oil quantity – Frame
I
Bearing size is shown on the name plate of the pump,
and with this the correct thrust bearing frame can be
selected according to the following table.
Bearing housing [470]
with Oiler [357]
without Oiler [357]
Oil quantity
0,42 l (14.2 Fl.oz.)
0,3 l (10.1 Fl.oz.)
