Heraeus Combilabor CL-P 7 - Maintenance Procedures; Oil Level Management; Oil Change and Refilling; Filter Element Service

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Operating instructions vacuum pump – CL-P Type 7
7.1 Oil level
NOTE!
The oil level must be regularly checked in the viewing glass, i.e. at least once a week. The oil level is OK, if the viewing
glass (see paragraph Elements of device, pos. 3) is lled to at least 1/3 in the operational condition, however, the level
does not exceed the marking “max.”. If the oil level has dropped to the marking “min.”, oil must be lled up immedia-
tely. Operation without oil resp. with contaminated or not enough oil affects the service life of the pump and may result
in damage to the pump housing. Oil should only be lled up when the pump is switched off!
7.1.1 Oil change / lling up
DISCONNECT FROM MAINS!
Unplug the unit in order to ll in or ll up oil!
Theoilllscrew(seeparagraph5.1Elementsofdevice,pos.7)attheoperationalpumpisloosenedwiththeAllankeythatis
included
intheaccessoryparts.Afterremovingthisscrew,themissingquantityofoil(max.60mlforinitiallling)islledin.
Then the screw is tightened again.
In order to drain the oil (e.g. oil change or transport), the pump is placed in a vertical position with the viewing glass facing
upward. The oil drain screw
(see paragraph 5.1 Elements of device, pos. 8) is removed with the Allan key.
Turnthepumptodraintheoil.Tightenoildrainscrewandremoveoilllscrew
(see paragraph 5.1 Elements of device, pos. 7) .
Fillupoil(max.60ml)andtightentheoilllscrew.
Check oil level in the viewing glass (see paragraph 5.1 Elements of device,
pos. 3)
. Plug mains plug into in the unit!
NOTE!
First oil change should be carried out after approx. 100 operating hours. Further oil change intervals depend on the
working process and the resulting contaminations. If standard working conditions are ensured,
we recommend to carry out regular oil change after 10.000 casting procedures or at least for ceramic furnaces
once a year.
NOTE!
Premature ageing of the oil can be caused e.g. by harmful vapors that are released, high surrounding temperatures
or dusts, in particular during the use of ceramic furnaces. In this case we recommend
the use of a special oil (Order No.: 646 01 432). The oil should be changed 4 times a year.
A milky and foamy consistency indicates that the oil has been contaminated by water and dust.
CAUTION!
Note following:
If oil change intervals are not adhered to, there is a risk of corrosion and damage to the pump housing!
Used oil must not reach the sewage system!
Observe the legal provisions on the handling of used oil!
7.1.2 Filter element
Dependingontheoperatingconditions,thelterelement (see paragraph 5.1 Elements of device, pos. 2) must be exchanged
after 10.000 casting procedures ore at least once a year but no later than after oil mist or loss of oil can be recognized or in case
of excess current consumption of the drive motor.
Thelterelementfeaturesastandardthreadwithoutsealingring.
Used lters must be disposed of together with the special waste.