9© 2023 | KISTERS
Maintenance
3 Maintenance
The maintenance of the OSS-B1 current meter can be divided in three sections as stated below. In addition, it is advisable that
the user maintain the OSS-B1 current meter at all time.
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Keep the OSS-B1 case clean.
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Clean all the tools after usage.
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Use lint free paper towels and white spirit (do not use methylated).
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Office service is required for the OSS-B1 current meter about once a month if it is used on a daily basis (i.e. Fully dismantle
shaft assembly, fan carrier and fan; Clean each item using hot soapy water and then rinse with white spirit).
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Check the lead and new the ends connections.
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If the current meter fails the spin test, refer to the mechanical fault-finding section for details.
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Test lead, counter and reed switch (refer to electrical fault-finding section for details).
For more information, see the following subsection:
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Service and Recalibration
Section 1: Before commencing a discharge measurement, the following steps should be performed
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Remove shaft protector from spindle shaft using the provided flat blade screwdriver.
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Remove fan carrier and shaft assembly from the fan by screwing anti-clockwise (ensure shaft assembly is placed on a
clean lint free cloth to prevent contamination of the bearings).
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Fill the fan with fresh oil and screw the fan carrier assembly clockwise into the fan (hand tight only).
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Re-assemble the fan carrier assembly onto the body and secure with the retraining screw.
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Perform spin test.
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Start gauging.
Section 2: During a gauging
After every one hour of use, the current meter should be cleaned before continuing a discharge measurement.
Before cleaning the current meter, perform a spin test to ensure the current meter has performed as expected during the last
measurement.
To clean the current meter, perform the following steps:
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Remove the spare parts from the supplied cleaning jar and ¾ fill with white spirit.
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Remove fan assembly from meter body by undoing the retraining screw and separating the body from the fan carrier
assembly.
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Remove fan carrier and shaft assembly from the fan by screwing anti-clockwise (ensure shaft assembly is placed on a
clean lint-free cloth to prevent contamination).
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Drain the old oil from the fan into a recycling container (for environmental reasons, do not pour white spirits on the
ground).
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Put the bearing end of the spindle assembly into the cleaning jar and gently agitate.
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Fill up the fan with white spirit and place your thumb over the threaded hole and shake vigorously for a few seconds.
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Pour the white spirits into a recycling container (for environmental reasons, do not pour white spirits on the ground).
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Remove the fan spindle assembly from the cleaning jar and blow dry.
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Re-assemble the spindle assembly into the fan carrier.
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Fill the fan with clean unused oil.
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Screw the fan carrier assembly clockwise into the fan (hand tight only).
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Re-assemble the fan carrier assembly onto the body and secure with the retraining screw.
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Continue gauging.
Section 3: After the completion of gauging.
Before cleaning and storing the current meter, perform a spin test to ensure the current meter has performed as expected
during the last measurement.
To clean the current meter for storage, perform the following steps:
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Remove the spare parts from the supplied cleaning jar and ¾ fill with white spirit.
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Remove the fan assembly from the meter body by undoing the retraining screw and separating the body from the fan
carrier assembly.
§
Remove the fan carrier and the shaft assembly from the fan by screwing anti-clockwise (ensure shaft assembly is placed
on a clean lint-free cloth to prevent contamination).
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Drain the old oil from the fan in a recycling container (for environmental reasons, do not pour white spirits on the ground).
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Put the bearing end of the spindle assembly into the cleaning jar and gently agitate.
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