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3 Maintenance and troubleshooting
3.1 Periodic maintenance
Repairs must only be carried out by the manufacturer.
Cleaning the units and checking the liquid levels and quality is the only periodic
maintenance required. With normal use, no further maintenance should be necessary. If
required, the system can be returned to the manufacturer for reconditioning.
If used with distilled water, after each work the pump including reservoir must be emptied
and made dry.
Working with the maintenance kit is only allowed for skilled personnel (maintenance kit
order code 8003545).
Never use chemicals for cleaning the reservoir, just a wet and free of lint cloth.
Figure 4. PGHH Maintenance kit seals and connectors.
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1
1. Copper seal (8072700)
2. EXT bonded seal (8003545)
3. *Pressure compensation
screw and PVC gasket
4. *Bonded seal (Usit) for
volume
5. G 1/4 male / 1215 Special
male connector
6. *O-ring 8 x 2
7. *O-ring 3.17 x 1.78
8. G 3/8’’ male - G 1/4’’ female
adapter
9. O-ring
* included in Maintenance kit
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7
6
4
8
2
5