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NMRV Series worm-gear speed
reducer |
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3.Operation &
maintenance |
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1.The shapes of shaft runout are all cylindrical. It is subject to GB1569-79 《Cylindrical shaft runout》. The key joint refers to GB1095-79 Ordinary flat key
2.The shaft lines should be kept concentric when the coupling is connected with a motor. The installation error should be no more than the tolerance value of the coupling.
3.When the output shaft is installed with the coupling or belt wheel, they should be pressed into the screw hole on shaft end, or assembled by heating. No hammering on it.
4.The mechanical stepless speed variator is not used in such a occasion where overload or running-blockage happen to occur.
5.Speed-regulation should be effected in running. No truning the hand wheel of speed-regulation when the machine stops.
6.The banking screws of speed-regulation on two ends under the operating box are well adjusted. Please don't touch them.
7.This set is not suited to work in the environment of above 40℃, especially no more than 45℃ when the temperature goes up, In regard to its temperature rise, please see the explanation below:
If a 4-pole motor is used for the speed variator, the temperature under running-in (empty running)is 40-50 ℃ higher than that of normal working environment. After running-in up to 60-80 hours, the temperature rise will go down gradually. From that time on, it is 20℃ higher than that of environment; and the temperature will keep on rising stably. The high temperature rise in running will affect normal permissive working condition, but give no harm to the parts in service life.
8.The liquid lubricating oil is used for the speed variator, Its trade mark is Ub-3. please check up the oil level before use.
9.The machine is filled with lubricating oil before leaving the factory. When is starts to work up 1000 hours for the first time, its lubricating oil should be replaced.
10.The lubricating oil level inside the speed variator should be kept at the height of two-third in the oil scale. Users should usually check up the height of oil level. It is strictly prohibited to operate it short of lubricating oil. The air screw nut on the operating box is screwed up for preventing from oil leakage in moving when leaving the factory. It should be loosed when it starts to run. It is strictly forbidden to use it before loosing. |
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