Watson-Marlow 621CC - Manual (Page 10)

10 AC motor maintenance

Remove any dust deposits from the fan cover to avoid overheating.
 Ensure that the bearing cage is packed to about 1/3 with evenly distributed
lubricating grease.

Select the correct lubricating grease from the table in the back of this operating
instruction.
11 Gearbox maintenance - Simplex (single
pumphead) units

Change lubricant every 10,000 working hours or after 2 years.

Combine a lubricant change with a thorough cleaning of the gear unit.

Extreme working conditions (high air humidity, aggressive media and large
temperature variations) will reduce the interval between lubricant changing intervals.

Select the correct lubricating oil from the table in the back of this operating
instruction.
12 Gearbox maintenance - Duplex (twin
pumphead) units
The gearbox is filled for life with synthetic lubricant so no maintenance is required.
13 Varmeca drives
Varmeca drives: overview
The Varmeca drive is an IP65 integrated electronically-variable speed drive fitted to a
standard enclosure IP55 motor gearbox. Standard Varmeca drives are single-phase but
three-phase Varmecas are available.
Standard Varmeca drives are set up for manual control with the run command enabled.
Current will be applied directly to the motor as soon as mains power is switched on.
Subsequently, speed, direction of rotation and stop control can be achieved from the control
knob and keypad.
For information on how to set up the Varmeca for remote control, please refer to
the Leroy Somer Varmeca-30 manual.
Any deviation from normal operating conditions (increased power
consumption, temperature, vibrations, noise) or warning signals by
monitoring equipment suggest malfunction. Inform the responsible
maintenance personnel at once to prevent the trouble from
worsening. If in doubt disconnect the pump immediately.
Page 10 of 46 Watson-Marlow Bredel E-Manuals
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