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Lubrication
All head and tail pulley bearings are greased at the factory. These bearings should be
field greased periodically. Lubrication frequency may vary; dry, dusty applications may
warrant weekly greasing, while less harsh applications may need greasing only once or
twice a year. Do not exceed 10,000 hours of operation between re-greasing.
The tensioner and belt rollers use a sealed bearing, so greasing is not necessary.
If there is a gear reducer supplied with your weighfeeder, it has an initial break-in period.
After the first 250 hours of operation, the gear box(es) should be drained and refilled to
the proper level(s). Subsequent oil changes should be done every 2500 hours. See the
gear reducer manual provided for further details.
If there is a gear motor (motor and reducer all in one housing) supplied with your unit, it is
permanently lubricated. No lubrication is necessary.
Weighfeeder Storage Recommendations
If a weighfeeder will be stored for a period of three months or more, follow the guidelines
below:
Load cell care
The load cell shipping bolts should be installed whenever the feeder is moved as an extra
safety measure during the storage period. Do not forget to remove the shipping bolts
upon re-installation.
Gear reducer/gear motor
Uncouple the gear reducer from the feeder drive shaft and the motor and grease all shaft
surfaces liberally with an appropriate lubricant to help with reassembly.
In addition, fill the gear reducer with an appropriate gear oil to prevent oxidation. When
the equipment is re-installed, completely drain this gear oil and then refill the reducer to
the appropriate level.
Electrical
To prevent oxidation, place a desiccant or moisture removal material in all electrical
junction boxes and component cabinets. This includes the load cell junction box, the
integrator cabinet, and the motor speed controller enclosure (if present).
Lubrication
Grease all greasable points.
Belt care
Reduce belt tension to a minimum to prevent belt damage and re-adjust belt tension at
re-installation.
Do NOT store the weighfeeder in direct sunlight, as this will cause premature
Note:
breakdown of the belt.
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SITRANS WW300 - OPERATING INSTRUCTIONS
7ML19985MQ01
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