Appion TEZ 8 운영 매뉴얼 - 페이지 6

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Changing the Oil Continued

Gently push the bottom of the cartridge forward until the

TEZOM is secured in place. (Fig. 4)

Close the protective door until the latch engages, and

continue with the evacuation process.

How Often Should You Change the Oil?

A vacuum pump can only pull a vacuum as deep as the vapor pressure of the sealing oil. When

oil becomes saturated or contaminated, the vapor pressure rises and the evacuation process

can slow to a halt.

It is recommended that the oil in your TEZ8 be changed and a fresh TEZOM installed at the

beginning of every new job. Doing this will ensure that your TEZ8 is supplied with clean, dry oil

with ultra-low vapor pressure maximizing the performance of your TEZ8.

With the clearly visible oil cartridge located on the front of the TEZ8, you can easily monitor and

identify wet or dirty oil. As the oil becomes more opaque, this indicates an increased level of

contamination. For example, as moisture is drawn into the TEZOM Cartridge, the oil will take

on a white, milk-like appearance. Similarly, other contaminants from the system will turn the oil

dark and sludge may accumulate in the cartridge.

Imagine that your TEZOM oil cartridge is like a paper towel that the TEZ8 is using to dry the

system. If the system has a significant amount of moisture in it, your paper towel gets saturated

quickly and stops absorbing the moisture as it should. At this point you have to decide wether or

not you can wait for the paper towel to dry and continue to use the same one or discard it and

get a fresh paper towel to dry more, faster.

The moisture absorbed in TEZOM oil may eventually evaporate but it takes time. Just like

changing to a fresh paper towel, replacing the TEZOM cartridge speeds the evacuation process

up by keeping the oil clean and dry.

Large tonnage systems or systems that have been exposed to excessive moisture may require

more than one oil change to quickly complete the evacuation process. While this would be very

difficult with another vacuum pump, the TEZ8 has been designed so that you may remove and

replace the TEZOM cartridge while the pump is running without breaking the vacuum.

Changing the oil in the Appion TEZ8, while it is running, is as easy as installing a new TEZOM

oil cartridge following the above procedure steps 2 through 8.

Note: When you change the TEZOM cartridge while the pump is running, some oil from the oil

return will drip out after the old TEZOM cartridge has been removed and before the new one is

in place. This is normal and should be cleaned up as soon as the new cartridge is in place.

Fig. 4