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SANDSUN

OVERLOAD PROTECTOR

12. OVERLOAD VALVE  ASSEMBLY DIAGRAM (Model:VA08H)

8

38

27

26

28

29

30
31
32
33

35

37

36

41

40

34

Item

Limit switch base

Limit switch

Coupled piston
Relief valve

Coupled plate

Balance pistion

Part Name

14

O-Ring

O-Ring

25

Cover

Cylinder 

O-Ring

Bolt

21

23
24

22

16

20

15

4

Spring
O-Ring

O-Ring

Nut

Bolt

10

12
13

11

6
7

5

Bolt
Bolt

Item

2
3

1

1

AS-50

AS-15

61-1100

61-1300

61-1200

61-0630

61-1000

AS-3

M8x70

1

1
1

1

1

4

1

1

61-7100
AS-46

AS-24

61-1400

TM14x30

AT11-1-I(NO)

Specification

M5x12

M6

M4x25

M4x4

1

2
1

1

1

1

1
1
1

Qt'y

1

2
1

61-0510

61-0401

61-0309

61-0307

BP-12.5

61-0200

TP-12.5

61-1501

61-0100

Specification

BP-16

O-Ring

Air drain bolt

Hydraulic body
Flat pad

O-Ring

O-Ring

AP-7

M4

BP-4

Back-up ring

Pressure control valve

Pilot valve base

Part Name

Spring

O-Ring

O-Ring

Pilot valve

O-Ring

O-Ring

BP-16

AP-24

AS-35

1

1

1

1

2

1

1

1

1
1

1

1

1

1
1

1
1

Qt'y

1
1
1

1

AT11-2-I(NC)

1

(VA08-7口口)

(VA08-9口口)

Adjustable screw

61-1700

2007.10.17

35

34 33

28

31

32

29

27

30

26

36

37

1

38

2

7

3

25 24 23 22

21 20

13

11

10

12

10 14 15 16

4

5

6

A

40

41

39

39 Filter

A00011

 

Summary of Contents for VA08H Series

Page 1: ...L VA08H Air Pressure Type SANDSUN PRECISION MACHINERY CO LTD T e l 8 8 6 4 8 5 3 6 6 8 8 F a x 8 8 6 4 8 5 3 6 6 9 9 http www sandsun com tw E mail sandsun ms26 hinet net 57 7 NO 7 LANE 57 SEC 3 CHUNG...

Page 2: ...1 4 BASIS OF SELECTION 2 5 ATTENTION POINTS FOR PIPING 2 6 CAUTION IN USE 3 7 METHOD OF AIR DRAIN 3 8 WORKING PRINCIPLE 4 9 SETTING METHOD OF LIMIT SWITCH 5 10 TROUBLESHOOTING 6 11 PUMP ASSEMBLY DIAGR...

Page 3: ...ch can prevent effects of excessive rising of hydraulic pressure caused by raised temperature when press is operating 2 Selection of Model V A 0 8 H 1 2 3 Suitable for press 200 tons down Setting rang...

Page 4: ...according to releasing flow rate of cylinder inside slide Q Releasing flow rate of overload protector which you choose has to be more than of cylinder inside slide when overload occurs Please consider...

Page 5: ...king 7 1 3 Wait for around 20 seconds in order to exhaust air completely 7 1 4 Turn the air drain bolt clockwise to fasten it and then pump stops working hydraulic pressure is raising 7 1 5 If the pum...

Page 6: ...ly and the air solenoid valve which is used by overload protector will be OFF cut off the power supply 8 3 After overload protector was released or hydraulic pressure isn t enough After overload occur...

Page 7: ...thickness gauge of 0 8 1 0 mm each between adjustable screw and head of limit switch to adjust limit switch After adjustable screw please fasten the nut and then insert the thickness gauge to re confi...

Page 8: ...ught Check if any damage happens from the inlet base 24 and inlet valve 20 3 Without enough oil in the oil tank Refill hydraulic oil and let the air drain 4 Pilot valve 29 caught Check if any damage h...

Page 9: ...Filter Exchange valve Check ring Silencer plate Buffer pad SANDSUN 1 1 1 1 1 1 1 1 Spring 39 41 42 40 Bolt Cover Silencer 37 38 35 36 M6x90 61 2800 61 2400 61 2500 R 45 61 2600 61 2700 61 5700 Inlet v...

Page 10: ...1 1 61 7100 AS 46 AS 24 61 1400 TM14x30 AT11 1 I NO Specification M5x12 M6 M4x25 M4x4 1 2 1 1 1 1 1 1 1 Qt y 1 2 1 61 0510 61 0401 61 0309 61 0307 BP 12 5 61 0200 TP 12 5 61 1501 61 0100 Specification...

Page 11: ...ing P 16 19 O Ring P 16 Cylinder Port 27 3 11 52 O Ring P 24 60 70 Limit Switch 82 277 PT1 2 Overload Cylinder Port 74 Air Drain Bolt 13 70 33 PT1 4 Air Supply Port D C A B D C E 16 d 2005 07 08 SANDS...

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