Pumping Medium; Start-Up; 6 Maintenance; 7 Warranty - Maximator M4 Notice D'utilisation Et De Maintenance

5.3.3 Pumping medium

The pumps must exclusively be used for the media for which they
are suitable according to our medium resistance list. Any other
media have to be tested prior to use by us as to their compatibility
with the pump materials.
As hydraulic oils we recommend oils with a viscosity of 46 – 68 cst
as defined in DIN 51524 T2; DIN 51519; ISO VG 46.
The viscosity of the pumping medium should not exceed 100 cst.

5.4 Start-up

Trouble-free operation requires a de-airing of the pump and the
pertaining hydraulic system which is performed by operating the
pump at a low stroke frequency. The latter is achieved by reducing
the drive pressure or limiting the volume flow. The pumps do not
prime against an existing operating pressure at the outlet fitting.
The high-pressure side can be de-aired, e.g., by loosening of the
pressure pipe. This facilitates priming of the pump.

6 Maintenance

The air drives of all pumps are pre-treated with HD grease and do
not require any other type of lubrication. Only during pump over-
hauls the main block valve and air piston should be treated with
acid- and silicone-free Maximator grease.

7 Warranty

We grant for our products a warranty of 12 months on material
and manufacturing quality, starting upon the shipment date of a
unit.
Any defects that are due to improper handling or malfunctions or
use of inadmissible liquids, foreign matter in the drive or pumping
media or exceeding of the maximum operating pressure are not
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subject of our warranty. Wear parts, such as sealings, guiding ele-
ments, etc., are exempted from our warranty.

8 Repair

All repair work has to be performed by qualified specialist person-
nel under extremely clean conditions. Already minor impurifica-
tions may cause severe damage at the micro-finished hydraulic
and pneumatic components.
You can purchase all component parts of our pumps as spare parts
from us. For ordering, please, use the respective stock numbers
from the drawings that we ship with each pump. Typically, there
are more than one sealing defective or worn, this is why we have
compiled different sets of sealings. The compositions of these sets
of sealings can be also be gathered from the drawings as can be
the respective stock numbers. Please, make sure to indicate the
serial number of the pump when ordering spare parts. The serial
number can be gathered from the pump machine plate and has
also been stamped as a stamp number on the pump housing (as a
6-digit number).
It goes without saying that the most convenient option for you is
to ship a defective unit to us. It is then repaired by our qualified
personnel in rooms where there is no metal-cutting machining and
thus under extremely clean conditions. We will send you a cost
estimate upon request and after this has been confirmed repair
the units as fast as possible and ship them back to you.
Note: You can access via our homepage detailed repair
instructions and drawings of the individual pumps which
are to provide support to you during repair work or in case
of any problems.
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