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16

9. Retightening of Tie rods

（

only Fi/

□

/R

）

 

 

     

  

・

  Since the dimensions of this pump may vary according 

to the temperature or with the passage of time due to 
the characteristics of its material:  resin.  Therefore, 
check to see if any liquid material leaks at each sealed 
portion periodically, and retighten the parts indicated 
with arrow marks. [Fig.9-1] 

・

 The torque should be applied: 

①

 immediately before you use the pump, 

②

 during inspection to be performed every six months. 

③

 during inspection to be performed every year if you 

use the pump in the clean room, that is, if the pump 
is used within ± 5ºC of the temperature variation. 

④

 if the pump starts when the temperature of liquid 

material is low:  the temperature of this material 
becomes high when the pump operates, and becomes 
low when the pump stops. 

⑤

 if any leak of liquid or material is detected with the 

daily inspection. 

 

Retightening torque of the tie rods 

DP

－

10Fi, DP

－

20Fi

 5 N

･

m 

 

Retightening torque of the valve cap 

DP

－

10Fi, DP

－

20Fi

20 N

･

m 

 
 

＜

NOTE

＞

 

－

 Retighten the tie rod nut retainers on a diagonal 

line with even force. 

－

 Be sure to retighten the valve cap with the 

dedicated tool (see P.4). 

  

 
 

 

 

Содержание DP-10F

Страница 1: ...MAINTENANCE MANUAL YAMADA AIR OPERATED DIAPHRAGM PUMPS DP 10Fi DP 20Fi Doc No NDP 149M 06 ...

Страница 2: ...n death or serious injury CAUTION This indicates the existence of potential hazard which if not avoided may result in bodily injury or in physical damage To indicate the contents of danger and damage the following symbols are used together with the above indications This symbol indicates an act that is prohibited prohibition The concrete contents of prohibition are indicated by the side of the ind...

Страница 3: ...tallation 3 5 Valve Body and C Spool Valve Assembly 5 1 Removal 4 Valve body assembly 4 Disassembling of the C Spool Valve 6 5 2 Inspection 7 5 3 Installation 8 6 Ball Valves and Valve Seats 6 1 Removal 9 6 2 Inspection 10 6 3 Installation 10 7 Diaphragm and Center Rod 7 1 Removal 11 7 2 Inspection 13 7 3 Installation 13 8 Pilot Valve Assembly 8 1 Removal 15 8 2 Inspection 15 8 3 Installation 15 9...

Страница 4: ...mber B is pushed out to the discharge port and at the same time liquid is sucked into the liquid material chamber A Thorough repetition of this operation liquid is repeatedly taken in and discharged out to construct a diaphragm pump 2 Tools and Others Required 2 1 General tools Socket wrenches 13 mm 19 mm Flat head screw driver Open end wrenches 13 mm 19 mm Snap ring pliers Hexagonal wrench 6 mm P...

Страница 5: ...2802 DP 20Fi H Part No 832803 Support Ring Wrench DP 10Fi H Part No 832804 DP 20Fi H Part No 832805 2 3 Others Assembly lubricating oil Fomblin GR AR555 or equivalent Bolts M8 1 25 30 or larger 3 Ordering Replacement parts For accurate and speedy shipment of parts be sure to order the right parts for your model to distributor Indicate the part numbers descriptions and quantities ...

Страница 6: ...main unit from the base Remove the fixing screw one Fig 4 1 Slide the pump main unit toward the fixing screw then raise and remove it from the base Fig 4 2 4 2 Installation For installation see Exploded View on the separate sheet and install in the reverse order of disassembly ...

Страница 7: ...ds the up direction to remove it NOTE To pull out a pin of the part b use the hexagon headed bolt removed from the part a Remove the valve body assembly and the piping blocks A and B from the pump Fig 5 2 Remove the piping block assembly from the valve body assembly Use the dedicated tool cap remover to remove the cap from the valve body assembly Fig 5 3 Use a plyer remove the C spool valve assemb...

Страница 8: ...remove pin Remove valve body from pump body Remove air tube from fitting Fig 5 7 Use the dedicated tool Cap remover to remove cap from valve body assembly Fig 5 8 Use a plyer remove C Spool assembly Fig 5 9 Use the dedicated tool Sleeve remover to remove sleeve Fig 5 10 Fig 5 6 Fig 5 7 Fig 5 8 Fig 5 9 Fig 5 10 ...

Страница 9: ...e arm is removed also Use the snap ring plyer to remove the interlocking bush from the spool while opening and pushing the groove of the interlocking bush Fig 5 13 and 5 14 NOTE Do not exert any excessive force to the spool Do not open the groove of the interlocking bush more widely than it has to When you remove the interlocking bush the spring retaining cushion is removed also Fig 5 11 Fig 5 12 ...

Страница 10: ...her as a complete set C spring Measure the dimension shown on the left figure and if it is out of the allowable range replace the C spring Fig 5 17 Allowable range of the C spring 25 9 26 5 mm Interlocking bush Measure the dimension shown on the left figure and if it is out of the allowable range replace the interlocking bush with a new one Fig 5 18 Usable range of Interlocking bush Part to measur...

Страница 11: ...erse order of disassembly Tightening torque of the hexagon headed bolt of the piping block DP 10Fi R DP 20Fi R 4 N m NOTE Make sure there is no dust on the seal surface and the seal is not damaged Be sure to fix the caps on both edges of the valve body until they reach the end face of the valve body ...

Страница 12: ...0Fi or dedicated tool for DP 20Fi Remove the O ring Remove the balls valve seats O rings and funnel Be sure to use the dedicated tool sleeve remover to remove the funnel and valve seat Fig 6 3 Fi R Fi H Dedicated tool Valve cap Valve stopper O ring O ring O ring Valve seat Valve seat Funnel Dedicated tool Valve cap Valve stopper Valve seat O ring Funnel Valve seat O ring Fig 6 4 O ring ...

Страница 13: ...igure and if it is out of the allowable range replace the valve seat with a new one Allowable range of the valve seat DP 10Fi 2 4 5 9 mm DP 20Fi 2 8 7 0 mm 6 3 Installation For installation see Exploded View on the separate sheet and install in the reverse order of disassembly Tightening torque for the valve stopper and valve cap DP 10Fi DP 20Fi 20 N m NOTE Make sure there is no dust on the seal s...

Страница 14: ... rods Remove the six retainer nuts from one side of the horizontal tie rods then remove the reinforcement plate air chamber and diaphragm White removing the O rings remove the rod Fig 7 3 Turn the center disks on the side of the horizontal center rod with your hands to remove them Fig 7 4 Use the dedicated tool guide folder remover to remove the guide folder Fig 7 5 Remove the guide center rod and...

Страница 15: ...rn180 degree Approx Fig 7 8 Use the dedicated tool Retaining Ring Wrench to remove retaining ring Fig 7 8 Insert Flat head screw driver into the groove to remove diaphragm Fig 7 9 7 10 Use the dedicated tool guide holder remover to remove the guide retainer Fig 7 11 Remove the guide center Rod and sleeve Fig 7 12 Fig 7 7 Fig 7 8 Fig 7 9 Fig 7 10 Fig 7 11 Fig 7 12 ...

Страница 16: ... 7 15 Measure the inside diameter and if it is out of the Allowable range replace the guide with a new one Allowable range DP 10Fi DP 20Fi φ18 02 φ18 10 mm 7 3 Installation For installation see Exploded View on the separate sheet and install in the reverse order of disassembly Install the diaphragm so that its protruded part can face the inside Fig 7 16 An auxiliary board attaches a thick board si...

Страница 17: ... sheet and install in the reverse order of disassembly Tightening Torque values DP 10 Fi H 40 N m DP 20 Fi H 60 N m NOTE After fitting the retaining ring point A must be in the down position Then tighten the inside support ring Fig 7 18 Fig 7 17 Fig 7 18 ...

Страница 18: ...pring Fig 8 4 Be sure to replace the spring with a new one when Disassembling the pilot valve assembly O ring If the O ring is worn out or damaged replace it with a new one Pilot valve If the pilot valve is worn out or damaged replace it Valve sheet Fig 8 4 If the seat side of the pilot valve is worn out or damaged replace the pilot valve with a new one 8 3 Installation For installation see Explod...

Страница 19: ...during inspection to be performed every year if you use the pump in the clean room that is if the pump is used within 5ºC of the temperature variation if the pump starts when the temperature of liquid material is low the temperature of this material becomes high when the pump operates and becomes low when the pump stops if any leak of liquid or material is detected with the daily inspection Retigh...

Страница 20: ...Manufactured by YAMADA CORPORATION INTERNATIONAL DEPARTMENT No 1 3 1 Chome Minami Magome Ohta Ku Tokyo 143 8504 Japan PHONE 81 0 3 3777 0241 FAX 81 0 3 3777 0584 201612 NDP149M ...

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