Woosung Automa W2V20 Installation instructions

WOOSUNG AUTOMA CO., LTD
646-16, Seokpo5-Ri, Jangan-Myeon, Hwaseong-Si Kyoungki-Do, KOREA TEL : [phone]
FAX : [phone]
http://www.wsautoma.co.kr
USER INSTRUCTION
for High Vacuum Rotary Vane Pump
W2V20
WOOSUNG AUTOMA CO., LTD.

WOOSUNG AUTOMA CO., LTD
646-16, Seokpo5-Ri, Jangan-Myeon, Hwaseong-Si Kyoungki-Do, KOREA TEL : [phone]
FAX : [phone]
http://www.wsautoma.co.kr
CONTENTS
1. Utility of Basic Parts and Specification
2. Inspection
3. Installation
4. Operation
5. Maintenance
6. Trouble Shooting
7. Dimension of W2V20
8. Development figure
9. Bill of Material
10. Service Kit
11. Technical Support and Contact Information

WOOSUNG AUTOMA CO., LTD
646-16, Seokpo5-Ri, Jangan-Myeon, Hwaseong-Si Kyoungki-Do, KOREA TEL : [phone]
FAX : [phone]
http://www.wsautoma.co.kr
1. Utility of Basic Parts and Specification
Specification
Pumping Speed 200 ℓ/min
Gas Ballast Closed 5X10-4 torr ( 6.7 X 10-2 Pa )
Ultimate Pressure Gas Ballast Open 5X10-2 torr ( 6.7 Pa )
Standard 220VAC 1Ф50/60Hz
Option 220VAC/380VAC 3Ф50/60Hz
Power Input
Customer’s Request (Voltage, Frequency and Phase)
Full Load Power 0.4 kW ( 0.5 HP )
Motor Speed 1700 rpm
Standard NW25
Option I Hose Nipple(Ф12 OD, Ф16 OD, or Ф26 OD)
Inlet and Outlet
Option II Screw Nipple (3/8″Female)
Oil Capacity 600 cc ( 0.6ℓ)
Weight 21 Kg
Ambient Operation Temp. Range 7~40 °C
Overall Dimension (mm) 150(W) X 434(L) X 251(H)

WOOSUNG AUTOMA CO., LTD
646-16, Seokpo5-Ri, Jangan-Myeon, Hwaseong-Si Kyoungki-Do, KOREA TEL : [phone]
FAX : [phone]
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2. Inspection
When you receive a pump, you need to check the pump is the same type you ordered.
Please check there is any sign of loose bolts, spilt oil, and broken/loose Parts.
If you ordered accessories for vacuum system please check them in the box.
3. Installation
1) Preparation
Select a well ventilated area, free of dust.
The pump should be placed conveniently to monitor the oil level of the pump.
We recommend the pump is operated in the temperature over 7 °C.
(We use vacuum oil named ‘MR-200’ as our default vacuum oil and it is best performance over 7 °C.)
2) Fastening
The pump should be tightly fastened to the ground or to a secure object so as not to be moved by the vibration of the
pump. The pump should be installed and maintained horizontally all the time.
3) Connection by using Terminal box
① Open the Cover of Terminal box. You can see there is 6 cords connected.
② W2V20’s motor is 3 phase one. You need to connect 3 external cords to the pump.
③ By referencing the Terminal box cover, you can connect the pump to power.
④ After finishing connection please do not connect the pump to the system and check the electronic connection is proper
or not. ( If the connection is wrong motor will operate opposite and you need to change the connection)
4. Operation
1) Start up
Prior to start up, make sure that the line voltage and type of connections are appropriate.
( For all 200V motors, a “Delta” connection is applied initially)
Make sure that the oil level should be within the region between “LO” and “HI” marks.
( Ideally, 3/4 toward “High from “LO”)
Never operate the pump in the condition which vacuum oil is below “LO”
In case of 3 phase line operation, make sure that the direction of motor rotation is the same as indicated on the body of
the pump.
2) Emergency Stop and Power Failure
There is no need of a particular procedure to prevent from loosing vacuum in case of an emergency stop or power failure.
The oil regulator build inside pump prevents Back-Flow of oil when the pump stops.

WOOSUNG AUTOMA CO., LTD
646-16, Seokpo5-Ri, Jangan-Myeon, Hwaseong-Si Kyoungki-Do, KOREA TEL : [phone]
FAX : [phone]
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.

WOOSUNG AUTOMA CO., LTD
646-16, Seokpo5-Ri, Jangan-Myeon, Hwaseong-Si Kyoungki-Do, KOREA TEL : [phone]
FAX : [phone]
http://www.wsautoma.co.kr
6. TROUBLE SHOOTING
SYMPTOM CHECK STEM TO TAKE
Noisy motor would not turn
Power line voltage and connections.
Any foreign materials inside the pump.
Motor ( Open internal circuit).
Correct voltage or connections.
Remove the foreign materials, If problem
with oil, change it.
Replace open windings.
Noise and hot pump
Any Foreign materials inside the exhaust
valve.
Leakage in the system.
If leakage valve is open.
All the valves in the vacuum line.
Remove the foreign materials
Fix the leakage.
Close the valve.
Close if found open.
Vacuum Drops
(get worse)
Low oil level.
Leakage on the device connection.
Moisture content of oil.
Oil regulator.
If Gas Ballast is open.
Add Oil.
Close the intake and recheck.
Change Oil.
Replace the Oil Regulator.
Close the gas ballst.
Motor runs but Pump not.
Worn out coupling mechanism.
Worn out key between motor and pump.
Replace coupling.
Replace the key and the set screws.

WOOSUNG AUTOMA CO., LTD
646-16, Seokpo5-Ri, Jangan-Myeon, Hwaseong-Si Kyoungki-Do, KOREA TEL : [phone]
FAX : [phone]
http://www.wsautoma.co.kr
7. Dimension of W2V20

WOOSUNG AUTOMA CO., LTD
646-16, Seokpo5-Ri, Jangan-Myeon, Hwaseong-Si Kyoungki-Do, KOREA TEL : [phone]
FAX : [phone]
http://www.wsautoma.co.kr
8. Development Figure

WOOSUNG AUTOMA CO., LTD
646-16, Seokpo5-Ri, Jangan-Myeon, Hwaseong-Si Kyoungki-Do, KOREA TEL : [phone]
FAX : [phone]
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9. Bill of Material
BOM of W2V20
2007/02/09 (StandardType:W2V20)
NO SPEC NO, DESCRIPTION STANDARD Q`T
1 W2V0001 MOTOR 3Φ400W 200/380V 50/60 1
2 W2V0002 KEY 5X5X15R 1
3 W2V0003 MOTOR PLATE DIECAST 1
4 W2V0004 MOTOR PLATE FIXING BOLT M6X15 4
5 W2V0006 COUPLING FAN FIXING BOLT M5X10(SET SCREW) 1
6 W2V0007 SIDE COVER FIXING BOLT M4X8 4
7 W2V0008 SIDE COVER(WOOSUNG) ABS 2
8 W2V0009 COUPLING FIXING BOLT M5X6(SET SCREW) 1
9 W2V0010 SUCTION PAD FIXING BOLT M4X8 2
10 W2V0014 BASE RUBBER NBR 4
11 W2V0015 SUCTION PAD STRAP PRESS 1
12 W2V0016 OIL SUCTION PAD FELT 1
13 W2V0017 MAIN PLATE(BADY) DIECAST 1
14 W2V0018 BASE PLAT MOUNTING BOLT M6X15 4
15 W2V0019 BASE PLATE DIECAST 1
16 W2V0020 O-RING P-20 1
17 W2V0021 OIL SEAL(VITON) 22X32X7 1
18 W2V0022 O-RING G-45 1
19 W2V0023-01 SEAL HOUSING DIECAST 1
20 W2V0023-02 HOUSING FIXING BOLT M4X10(PLATE) 3
21 W2V0024 SPRING WASHER Φ6 3
22 W2V0025 1ST STATOR FIXING BOLT M6X25 3
23 W2V0026 COCKING PIN Φ6.1X7.4 3
24 W2V0027 OIL SETL(VITON) 25X35X7 1
25 W2V0028 O-RING S-80 1
26 W2V0030 OIL STRAINER Φ13X50X24# 1
27 W2V0032 OIL FILTER FIXTURE DIECAST 1
28 W2V0033 OIL STRAINER FIXING BOLT M4*10 2
29 W2V0034 1ST STAGE BLADE 32X42X6T 2
30 W2V0035 1ST STAGE BLADE SPRING Φ1.8X33X0.5 2
31 W2V0036 1ST STAGE SPRING GUIDE Φ1.8X26 2
32 W2V0037 2ND STAGE SPRING GUIDE Φ1.8X26 2
33 W2V0038 2ND STAGE BLADE SPRING Φ1.8X30X0.5 2

WOOSUNG AUTOMA CO., LTD
646-16, Seokpo5-Ri, Jangan-Myeon, Hwaseong-Si Kyoungki-Do, KOREA TEL : [phone]
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34 W2V0039 2ND STAGE BLADE 18X25X6T 2
35 W2V0040 2ND STAGE STATOR FC-25 1
36 W2V0041 2ND SPRING WASHER Φ6 5
37 W2V0042 2ND STAGE STATOR FIXING BOLT M6X25 5
38 W2V0043 O-RING G-45 1
39 W2V0044 O-RING P-6 1
40 W2V0045 END PLATE FC-25 1
41 W2V0046 COCKING PIN 2.9X3.3X6 1
42 W2V0047 END PLATE FIXING BOLT M6*20 4
43 W2V0048 O-RING AN-166 1
44 W2V0049 OIL BOX DIECAST 1
45 W2V0050 OIL BOX ASSY FIXING BOLT M6*35 4
46 W2V0051 OIL LEVEL PLATE 10X95X0.2T 1
47 W2V0052 O-RING S-75 1
48 W2V0053 OIL LEVEL WINDOW 34X122X3 1
49 W2V0054 OIL LEVEL BACK PLATE DIECAST 1
50 W2V0055 OIL DRAIN PLUG M-10 1
51 W2V0056 O-RING AN-109 1
52 W2V0057 NAME PLATE STICKER 1
53 W2V0058 OIL LEVEL BACK PLATE FIXING BOLT M3.5X11(+) 10
54 W2V0060 O-RING Φ20XΦ30X2.5T 1
55 W2V0061 O-RING Φ20XΦ30X2.6T 1
56 W2V0062 OIL FILLING PLUG M-24 1
57 W2V0063 EXHAUST ASSEMBLY NW-25 1
58 W2V0064 EXHAUST ASSEMBLY CAP NW-25(CAP) 1
59 W2V0065 O-RING AN-109 1
60 W2V0066 O-RING P-10A 1
61 W2V0067 G/B NIPPLE BRASS 2
62 W2V0068 TUBE Φ4.8 1
63 W2V0069 GAS BALLAST CLAMP PRESS 2
64 W2V0070 ROLL PIN Φ3X20 2
65 W2V0071 GAS BALLAST FIXING BOLT M4X12 2
66 W2V0072 DISCHARGE BAFFLE FIXING BOLT M5X8 2
67 W2V0073 DISCHARGE BAFFLE 100X156X1 1
68 W2V0074 2ND VALVE SPRING Φ0.5X7.3X8.3X17 1
69 W2V0075 SPRING SUPPORT DIECAST 1
70 W2V0076 SPRING SUPPORT FIXING BOLT M5X20 1
71 W2V0076-01 TWIST WASHER Φ5 1

WOOSUNG AUTOMA CO., LTD
646-16, Seokpo5-Ri, Jangan-Myeon, Hwaseong-Si Kyoungki-Do, KOREA TEL : [phone]
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72 W2V0077 TAPPER PIN Φ7X40 2
73 W2V0078 NUT M6 2
74 W2V0079 2ND STAGE VALVE Φ14.5X7 1
75 W2V0080 ROTOR ASSEMBLT FCD-64 1
76 W2V0081 OIL PUMP BLADE 6X8X21 1
77 W2V0082 KEY 5X5X18 1
78 W2V0084 1ST STAGE STATOR FC-25 1
79 W2V0085 1ST VALVE GUIDE PIN(ROLL PIN) Φ3X20 2
80 W2V0086 1ST VALVE 35X43X2T 1
81 W2V0087 1ST VALVE BACK PLATE 35X43X1.2T 1
82 W2V0088 1ST VALVE SPACER Φ8X13 1
83 W2V0089 1ST VALVE SPRING Φ9X11X15.5X0.5 1
84 W2V0090 WASHER Φ5 1
85 W2V0091 1ST VALVE FIXING BOLT M5X22 1
86 W2V0092 1ST VALVE OIL BAFFLE 52X66X1.2T 1
87 W2V0093 1ST VALVE OIL BAFFLE FIXING BOLT M4X8 2
88 W2V0094 O-RING P-6 2
89 W2V0095 CHECK VALVE SEAT Φ5.7X10 1
90 W2V0096 DISTRIBUTER BALL Φ4 1
91 W2V0097 DISTRIBUTER BODY DLECAST 1
92 W2V0098 DISTRIBUTER VALVE Φ45 1
93 W2V0099 DISTRIBUTER SPACER DICAST 1
94 W2V0100 DISTRIBUTER WEIGHT Φ44X4.7T 1
95 W2V0101 DISTRIBUTER WEIGHT SPRING Φ0.6X9.5X10X17 1
96 W2V0102-01 DISTRIBUTER CAP AL 1
97 W2V0102-02 NIPPLE Φ8 1
98 W2V0102-03 HOSE Φ8 1
99 W2V0103 DISTRIBUTER WASHER FIXING BOLT M5X50 1
100 W2V0104 O-RING AN-109 1
101 W2V0105 O-RING P-10A 1
102 W2V0106 G/B PIN 4.5X6.2X11.5 1
103 W2V0107 GAS BALLST SPRING Φ4.5XΦ6.3X33X0.9 1
104 W2V0108 GAS BALLAST SPRING PIN 4.5X6.2X11.5 1
105 W2V0109 O-RING P-10A 1
106 W2V0110 GAS BALLST KNOB Φ40 1
107 W2V0111 STRAINER 0.2X32#X23 1
108 W2V0113 O-RING P-30 1
109 W2V0114 INTAKE FLANGE NW-25 1

WOOSUNG AUTOMA CO., LTD
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110 W2V0116 INTAKE FLANGE FIXING BOLT M4X12 4
111 W2V0117 INTAKE FLANGE CAP NW-25(CAP) 1
112 W2V0118 SNAP RING R-40 1
113 W2V0119 O-RING G-35 1
114 W2V0120 SEAL BUSHING Φ22X20 1
115 W2V0120-01 ORING S-18 2
116 W2V0121 COUPLING DIECAST 1
117 W2V0122 COUPLING JOINT NBR 1
118 W2V0123 FAN DIECAST 1
119 W2V0124 MOTOR PLATE GUIDE PIN Φ6X13 2
120 W2V0125 HANDLE DIECAST 1
121 W2V0126 HANDLE FIXING BOLT M6X20 2
122 W2V0127 MOTOR BODY FIXING BOLT M6X35 4
123 W2V0128 O-RING AN-048 1
124 W2V0129 TERMINAL BOX FIXING BOLT M5X15(+) 2
125 W2V0132 3P TERMINAL 3P/20A 1
126 W2V0133 COVER FIXING BOLT M4X8(+) 4
127 W2V0134 NAME PLATE STICKER 1
128 W2V0135 TERMINAL BOX COVER DIECAST 1
129 W2V0136 3P TERMINAL FIXING BOLT M4X12(+) 2
130 W2V0137 TERMINAL BOX BUTTOM RUBBER RUBBER 1
131 W2V0138 ROTATION MARK STICKER 1
132 W2V0139 TERMINAL BOX DIECAST 1
133 W2V0140 POWER CORD PROTECTOR ABS 1

WOOSUNG AUTOMA CO., LTD
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FAX : [phone]
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10. Service Kits
W2V20 Service KIT
Code # Description Q’ty Standard Remarks
W2V0016 OIL SUCTION FELT 1 FELT Minor and Major
W2V0020 O-RING 1 P-20 Minor and Major
W2V0021 OIL SEAL(Viton) 1 22X32X7 Minor and Major
W2V0022 O-RING 1 G-45 Minor and Major
W2V0027 OIL SEAL(Viton) 1 25X35X7 Minor and Major
W2V0028 O-RING 1 S-80 Minor and Major
W2V0043 O-RING 1 G-45 Minor and Major
W2V0044 O-RING 1 P-6 Minor and Major
W2V0048 O-RING 1 AN-166 Minor and Major
W2V0052 O-RING 1 S-75 Minor and Major
W2V0079 2ND STAGE VALVE 1 Φ14.5X7 Minor and Major
W2V0086 1ST VALVE 1 35X43X2T Minor and Major
W2V0094 O-RING 2 P-6 Minor and Major
W2V0098 DISTRIBUTOR VALVE 1 Φ45 Minor and Major
W2V0104 O-RING 1 AN-109 Minor and Major
W2V0113 O-RING 1 P-30 Minor and Major
W2V0119 O-RING 1 G-35 Minor and Major
W2V0120-1 O-RING 2 S-18 Minor and Major
Until Here for Minor Kit
W2V0034 1ST STAGE BLADE 2 32X42X6T Major Only
W2V0035 1ST STAGE BLADE SPRING 2 Φ1.8X33X0.5 Major Only
W2V0036 1ST STAGE SPRING GUIDE 2 Φ1.8x26 Major Only
W2V0037 2ND STAGE BLADE GUIDE 2 Φ1.8x26 Major Only
W2V0038 2ND STAGE BLADE SPRING 2 Φ1.8X30X0.5 Major Only
W2V0039 2ND STAGE BLADE 2 18X25X6T Major Only
W2V0074 2ND VALVE SPRING 2 Φ0.5X7.3X8.3X17 Major Only
W2V0081 OIL PUMP BLADE 1 6X8X21 Major Only
W2V0120 SEAL BUSHING 1 Φ22X20 Major Only
Total for Major Kit

WOOSUNG AUTOMA CO., LTD
646-16, Seokpo5-Ri, Jangan-Myeon, Hwaseong-Si Kyoungki-Do, KOREA TEL : [phone]
FAX : [phone]
http://www.wsautoma.co.kr
11. Technical Support and Contact Information
WooSung Automa Co., Ltd.
TEL : [phone]
FAX : [phone]
Email : [email protected].kr
Email2 : [e-mail]
URL : http://www.wsautoma.co.kr