9
Belt trench
BW-2
（
made by Super Tool Co.,
）
10.
Replacement of Elements
10-1. Replace elements in the condition of 9-4.
10-2. Prepare a container beforehand for disposal oil.
10-3. Put the container for disposal under the hose
at drain port.
10-4. Turn off power source of 10-4 UFW-003.
10-5. Open drain valve. (Oil drop down)
10-6. Set outlet side three way valve in the close position.
(in the middle position).
Set inlet side three way valve to the supply port
Sid. (Oil drain out.)
10-7. Turn on power source of UFW-003.
Run it for a few minutes.
Drain out all the oil inside.
10-8. Terminate it when oil do not drain out
any more.
10-9. Loosen joint in the upper side of filter case
and put off hose.
10-10. Rotate the filter case
anti-clockwise and remove it.
(If it is stiff, put rubber bands in three places,
rotate it with your hands.
Or you can easily rotate it with a belt trench.
The other tools may damage it.
）
10-11. Remove elements from housing head.
10-12. Set new elements after cleaning inside and around the housing head.
10-13. Set a filter case and attach hoses.
10-14. Close drain port.
10-15. Supply oil as described from 6-2 to 6-7.
11.
Replacement of oil
11-1. Drain oil of vacuum pump as described from 10-2 to 10-8.
Provided that inlet side three way valve should be in the inlet side.
(Outlet side three way valve is in close position.)
11-2. Supply oil in the vacuum pump as described from 6-2 to 6-7.
Element
Element holder
Housing head
Oil/water separation valve
Filter case
