SV3000, SV4000 Saybolt Viscosity Bath
Operation and Instruction Manual
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6. Maintenance
WARNING: Disconnect power to the unit before servicing and accessing any internal portion of the instrument to avoid
exposure to high voltages and/or temperatures which may result in personal injury or death. If you have any questions about
maintaining your equipment, then please do not hesitate to contact the Koehler technical service department.
6.1. Routine Maintenance
The SV3000 and SV4000 Saybolt Viscometer Baths require little routine maintenance to provide many years of continuous service.
However, over the course of time, some instrument parts may need to be replaced. When ordering replacement part(s), please
provide the model number, serial number, and product shipment date of your equipment so that we can ensure you will receive
the proper replacement part(s).
6.2. Bath Maintenance
Replace the oil in the bath when the color turns light to medium brown to avoid unwanted oil expansion. To drain the oil from the
unit, place a sufficient waste receptacle under the drain located in the back of the unit. In the open position, the draincock will be
parallel to the valve. When the bath is finished draining, close the draincock. In the closed position, the draincock will be
perpendicular to the valve.
SHOCK AND BURN HAZARD: Only clean inside the bath when equipment is de-energized and unplugged from the
mains power supply. Allow adequate time for heating coils to completely cool before cleaning.
6.3. Replacement Parts
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