M&C TEC1 Series, Operation Manual

Page: 43 / 78

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15.2 CHANGING CONTACT PULLEYS AND SPRINGS
Note
While mounting, make sure that the center of rotation and the driver
are aligned.
Use genuine spare parts only!
Follow these instructions to change the contact pulley and springs:
Disconnect the peristaltic pump from power supply;
Unscrew nuts of the pump head (wrench size 5.5) ;
1 Pump head nuts 2 Pump head 3 Springs
4 Groove 5 Driver (roll carrier) 6 Collar of the shaft bore
Figure 9 Disassembly of pump head and driver
Remove the pump head from the motor shaft
Now the driver can be removed from the pump head and is ready for maintenance.
The removal of the springs .4 pcs.) away from the driver is easily possible without the aid of
any tools. For this take spring out of the groove near to the shaft bore.
Dismount roller axes and change contact pulleys. Take care that axes are not worn out by the
springs and have damaged the dent at the axes front end. In case of abrasion the axes have to
be changed (see Figure 10).
Figure 10 Check of axes and rolls
The dent prevents
rotation of the axis
new
worn out