WOOSUNG AUTOMA CO., LTD
646-16, Seokpo5-Ri, Jangan-Myeon, Hwaseong-Si Kyoungki-Do, KOREA
TEL
: +82 31 358 9640
FAX
: +82 31 358 9644
http://www.wsautoma.co.kr
5. MAINTENANCE
1) Random inspection
Check vacuum oil frequently. You need to check whether the oil is brownish, dirty, or contains moisture.
Also you need to check the oil level always you start up the pump.
If oil level is lowered you can add oil to proper level. (Near
“
HI
”
)
If oil has poisoned by any dust or water, you need to change the entire oil.
Procedure of Oil change is like below.
① To change oil, let the pump cool for about 5 minutes.
② Drain the contaminated oil completely through the drain plug ( backside of pump ).
③ Close the drain plug.
④ Fill the new vacuum oil (MR-200) through the oil filling plug and check the oil level.
* The pump oil temperature should be typically less than 65
°
C when operating.
2) Periodic Serviceable Items
- Vacuum Oil
Usually the circumstances are very important key of oil
’
s life so there is no exact solution when you change the oil but
usually we recommend you need to change the pump
’
s oil like below.
Application
Chang oil within (Hours)
High Vacuum in Lab environment, or system seldom exposed to the air
2,500
High Vacuum in manufacturing environment, often exposed to the air
1,200
Vacuum furnace, large gas-exhaust diffusion system, system with booster pump.
600
Vacuum drier, vacuum molding, vacuum packing
200
Vacuum distillation, low vacuum tank
120
Again, we need to mention each system has differences so it is better for user to make own oil change plan.
- Oil Seal and other items
WSA supports 2 kinds of repair kits for maintain W2V20.
‘
Minor Repair Kit for W2V20
’
is for normal overhaul. Pump consists of various metal and rubber component and some
component need to change periodically. Please check the list of Repair kit.
‘
Major Repair Kit of W2V20
’
contains vane and other important parts of the pump. Please check the list.
Overhaul is very important for improve pump
’
s performance and pump
’
s life time. We recommend user need to overhaul
once a year.
