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12 Instandhaltung
Proper function and operational reliability of the unit are only ensured if the required tests, maintenance and service work are
performed by Heraeus Kulzer service agents or personnel instructed by Heraeus Kulzer.
Heraeus Kulzer GmbH will not accept any liability for damage – in particular personal injury – resulting from improper mainte-
nance or repair work which has not been performed by Heraeus service agents or adequately trained personnel or if no original
spare parts or accessory parts have been used during the exchange of parts.
We recommend to conclude a maintenance contract with our service agents; an offer can be requested there
(see paragraph 19 “Service”).
12.1 Maintenance and care
CAUTION!
Prior to maintenance and service work the unit must be switched off and unplugged!
Strict adherence to the maintenance intervals is recommended to avoid faulty castings and damage to the unit.
Maintenance work types:
12.1.1 daily
Check water level.
Check oil level and remove contaminations (e.g. milky consistency).
Clean the inside and the outside of the viewing glass using a soft cloth.
Remove alloy residues, etc. from the rubber seal of the casting chamber (vacuum cleaner or blow out with compressed air).
In case of moist compressed air: empty the water extractor of the optional pressure reducer through the release valve on
the bottom of the casting machine.
12.1.2 weekly (or after 100 castings)
Clean the inside of the casting chamber, the mould holder and the rubber seal when the unit has cooled down.
Check function and proper activatability of the chamber lock. Adjustment and cleaning may only be carried out by
adequately trained personnel.
12.1.3 annually (or after 3.000 castings)
CAUTION!
The following work includes interventions into the unit and may only be performed by adequately trained
service personnel!
Change oil of the vacuum pump.
Cleanoilmistlterofthepump,ifrequired,exchangethem.
Check casting chamber lock and support, check welding seams.
Checkcirculationofcoolingwaterandowcontrolinstrument(manualtestprogram).Ifrequired,changecoolingwater.
Changelterforvacuumandcompressedairinthevalvebox.
Check pressure and vacuum hoses.