VM Series Maintenance and Safety Manual 704-0212-209 Machine Maintenance 3- 25
Check and Maintain the Coolant
Daily or every 8 hours: Check the coolant level every day at the start of operation.
To maintain the coolant level, find the level indicator on the coolant tank and proceed as
follows:
1. If the flood coolant pump is off, then fill the coolant to the H (High) mark. Note
that the machine should be off for at least 5 minutes before filling the tank
with coolant.
2. If the flood coolant pump is delivering coolant to the machine, then fill to the
MAX mark.
Replacing Coolant
Weekly or after 40-50 hours of operation: Clean the coolant filters.
Every 3 Months or every 500 hours: Replace coolant and coolant filters.
1. Using a suitable brush, remove chips and other debris from the enclosure (and
chip conveyor, if installed).
2. Drain used coolant from the system and tanks.
3. Clean or change pump filters and pick-up tubes.
4. Fill the coolant tank with a neutral aqueous (water-based) cleaning agent and
flush thoroughly.
5. Drain the cleaning agent.
6. Rinse the system thoroughly with a 1% coolant solution. If bacteria or fungi
contaminate the system, use a cleaning agent recommended by the coolant
manufacturer.
7. Drain the rinsing solution.
8. Add new coolant.
9. Dispose of used coolant and cleaning solution in compliance with applicable
pollution control regulations.
If the coolant level drops below the L (Low) level mark on the coolant
tank, the coolant system may not operate properly.
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