50
CSS-VC-1.6 | 1.01.03
www.mc-techgroup.com
18.3.3 CHANGE OF CONTACT PULLEYS AND SPRINGS
•
Switch off the mains;
•
Unscrew nuts of the pump head (wrench size 5.5)
and remove snap ring
from motor shaft;
Figure 22 Disassembly of pump head and driver
•
Draw the pump head
out of the motor shaft
•
Take driver out of the pump head
•
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 23).
Figure 23 Check of axes and rolls
Note
The springs may occur in different colorings. This does not constitute a quality
defect. But make sure that the right spring strength is used. This can be
identified by the spring wire diameter. The „standard version for Novoprene
pump hoses“ (Part No. 90P1010) has a diameter of 1.1 mm and the
strengthened version for FPM-, Acidflex- or Masterflex-hoses“ (Part No.
90P1015) has a diameter of 1.2 mm.
The dent prevents
rotation of the axis
new
worn out
