BAQ kaloMAX NT II
Manual
2.4 Cleaning the shaft
The contact surfaces of the rubber rings on the shaft must be cleaned with ethyl
alcohol before the test. If the contact surfaces of the rubber rings are contaminated
with abrasive slurry, this will decrease the friction. Furthermore, the rubber rings may
not be damaged. If the rubber rings are damaged, the whole shaft has to be replaced,
because the rings must be adjusted to the shaft.
Accurate (round) wear craters can be obtained only if the rubber rings are in a proper
state.
2.5 Specimen
The specimen has to be clamped to the vice. Clean the measuring area with ethyl
alcohol to remove pollutions (e.g. grease, oil, fingerprints etc.).
2.6 Ball
The ball must be cleaned with ethyl alcohol. The ball has to be free from abrasive
slurry. A thorough cleaning of the ball is recommended to avoid slipping at the contact
surface of the rubber rings. Put the ball onto the V-shaped notch on the driving shaft.
Of course, the balls may not be rusted. They must be stored dry. A container with
silica gel is recommended.
2.7 Automatic dosage apparatus
The automatic dosage apparatus facilitates the application of the abrasive slurry. A
single drop will be released when the START-button is pressed. The drops have a
constant mass (preferably 35 mg). The amount depends on the viscosity of the slurry,
dosage time and dosage pressure (see below).
Required accessories
Cartridge:
5 ccm, Polypropylene
Plug:
5ccm, Polyethylene, double seals (white)
Hollow needle:
olive (1,54mm), stainless steel
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