Mixing pump G 4 X Super / G 4 X XL / Part 2 Overview, operation and service
Maintenance
6.4.7.1 Safety valve air compressor
Figure 90: Safety valve
1. Check, if the safety valve at the air compressor opens against a
completely closed air circuit at 4.0 bar.
6.4.8
Pump
1
2
Figure 91: Fold up mixing tube
Pump replacement
1. Secure the machine against switching on by removing the connec-
tion cable.
2. Loosen locking lever (1).
CAUTION
Ensure that the locking lever engages at the mixing
tube (2).
3
4
Figure 92: Changing the pump
3. Loosen the collar nuts (3).
4. Remove pump unit (rotor and stator) (4).
5. Insert new rotor and stator and tighten collar nuts (3).
NOTE
Only store assembled pumps (rotor in stator) for a few
days, since longer storage may cause the rotor and stator
to become inseparably joined.
NOTE
It is essential to spray the pump (rotor in stator) with
assembly spray before assembly, as otherwise the break-
away torque required for the pump motor is too high.
Assembly spray for PFT rotor/stator item no. 00588821
page 65 / 72
