7.4.2 Dismantling the diaphragms
Prerequisite
● Pump head and valves dismantled
Required tool
● Diaphragm key
WAF 46
Spare parts required
● Inspection set, including diaphragm key
Required consumable materials
● Clean, dry cloth
● Alcohol or cleaning solvent, if necessary
M
1
1/2/3
2
3
4
5
Fig. 8:
Replacing the diaphragms
1 Clamping washer
4
Spacer disks
2 Diaphragm
5
Pump head 2
3 Supporting washer
M
Diaphragm key
Dismantling the diaphragms
1. Carefully bend the diaphragm up on the side and while it is bent, attach the diaphragm key to the
supporting washer.
– Do not use a sharp-edged tool.
2. Unscrew the supporting washer, diaphragm, and clamping washer.
3. Pay attention to the spacer disks under the diaphragm.
– Reuse the original spacer disks for each installation location when remounting.
4. Remove the supporting washer and the diaphragm from the square of the clamping washer con-
necting screw.
– If the diaphragm is stuck to the supporting washer, use alcohol or cleaning solvent to release
it.
7.4.3 Installing the diaphragm
Required tools
● Diaphragm key
WAF 46
Spare parts required
● Overhaul kit incl. diaphragm key
Maintenance
30/46
