Indutherm VC 400 LCD, Instruction Manual, Page: 35 / 42

86014010_04_OPERATING_MANUAL_VC400_LCD_GB.DOC 25.11.2016 KS
page 35
6.4 Maintenance
A routine check/regular cleaning of the following is necessary: (Caution: disconnect the
machine first!):
Daily (before casting):
1. Remove thermocouple, sealing rod, crucible and insulation materials, carefully
clean inductor housing with a vacuum cleaner. Before reinstalling the above
parts, check those and replace if necessary.
2. Caution:
The “sealing rod cylinder” must not be placed on lowest position when
sealing rod is in place. A sealing up of the casting hole is not guaranteed in this
case. If problems occur, check sizes of sealing rod, graphite ball, crucible and
crucible bottom insulations!
3. Clean metal filter placed left of sealing rod.
Weekly:
1. Lubricate threads of sealing rod holder (top) with high temperature grease.
2. Clean vacuum pump filter and check oil level/change oil. Recommended oil type:
HD30/SAE30.
Every 4 month:
1. Check vacuum pump filter and oil separator filter of vacuum pump.
Annually:
Depending on the water quality, the cooling system should be cleaned with 25 %-citric
acid. The cooling system should be treated with this acid for approx. 1 hour. Then clean
the system thoroughly with pure water and check on eventual leakages.
1. Tighten all electric wirings, especially those for power current.
2. Tighten all connections of water-cooling, pneumatic systems and protective gas.