Instruction Manual ZHK
V07-21.0
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Figure 209:
Fan bearing with grease nipple
(example Comefri NTHZ)
Supplier
Type
Basis
Temp. range
FINA
Marson HTL 3
Lithium
30 °C / +120 °C
SHELL
Alvania Fett 3
Lithium
-20 °C / + 130 °C
ESSO
Beacon 3
Lithium
-20 °C / + 130 °C
MOBIL
Mobilux EP3
Lithium
-30 °C / + 130 °C
Table 18:
Recommended grease types
Plug fan
-
The fan is directly flanged to the motor and due to the absence of the belt drive, it is a service
friendly component.
-
To reach the operating point, a frequency converter is required.
-
Danger: Deposits on the wheel can cause damage (risk of fatigue fracture) and the impeller can
be damaged!
-
Visual inspection: Check the wheel for any particular weld cracking.
9.2.3 Motor
-
Check the motor for cleanliness and clean if necessary.
-
Measure current consumption, which must not exceed the rated current stipulated on the
nameplate.
Motor bearings
-
In case of irregular or unusual sounds, the corresponding bearing must be replaced.
-
Small and medium sized motors are equipped with a closed bearing, which can run for several
years without the need of lubrication.
-
Bearings of larger motors, depending on the motor manufacturer and motor size, are equipped
with nipples for lubrication. For exact details and information regarding grease type and quan-
tity for lubrication, please refer to the operating instructions of the motor manufacturer. After
three separate re-lubrications, the bearings must be dismounted, cleaned and greased again.
For lubrication intervals under normal operating conditions and 24 h/day load refer to
Size
2-pole
3000 1/min
4-pole
1500 1/min
6-pole
1000 1/min
8-pole
750 1/min
bis 180
12
12
12
12
bis 250
6
12
12
12
280
3
12
12
12
Table 19:
Lubrication intervals for motor bearings (in month)
Summary of Contents for ZHK
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