PFT ZP 3 L MULTIMIX Overview – Operation – Spare Parts Lists
Measures to be taken if there is a risk of frost
2016-07-04
45
38.2 Cleaning the pump
Fig. 73: Cleaning the pump
1. Remove the pump unit.
2. Release the nuts on the clamp (1).
3. Open the clamp with the aid of the jacking screws (2).
4. Press the stator (3) out of the clamp (4).
5. Press the rotor (5) out of the stator (3) and clean it.
6. Clean the pressure flange.
7. Clean the material hopper and mixing unit.
8. Completely reassemble the pump unit.
38.3 Retightening the pump
Fig. 74: Tightening the pump
1. If the feed pressure decreases, the stator can be retightened.
2. Do not retighten the pump during operation.
3. Pump components that are unable to produce the required
feed pressure must be replaced.
When tightening or changing the pump, ensure the following:
All screws on the clamp are uniformly tightened.
The tie rod screws on rubber stators are not overly tightened
and the liner ends are resting fully and centred in the flanges.
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.
39 Measures to be taken if there is a risk of frost
CAUTION!
Damage due to frost!
Water that expands on freezing inside the
machine can cause serious damage.
- Carry out the following steps when the pump
is not operating and there is a danger of frost.
4
3
1
5
1
2
