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・Add grease at least once a day.
・Fully stroke the jaw before starting work or upon supplying grease, and check that the jaw is inside the appropriate 

stroke area. (Refer to page 17)

・Always clean the chuck body or the sliding surface using an air gun, etc., at the end of work.
・Check that the bolts of each part are not loosened at least once every 3 months.
・Disassemble  and  clean  at  least  once  every  6  months  or  every  100,000  strokes  (once  every  2  months  or  more  for 

cutting cast metal).

1. Position to lubricate

・Lubricate using a grease gun from the grease nipple on the body periphery part. Supply grease when the jaw is open. 

After lubrication, repeat opening and closing the jaw several times without gripping work.

2. Grease to use

・Use the designated grease specified in Table 7. If grease other than the designated grease is used, sufficient effect 

may not be obtained.

3. Frequency of lubrication

・Add grease once every day.
・Add approximately 5g up to 8 inches and 10g for 10 inches or larger of grease to the each master jaw. Check the 

filling degrees of the grease after removing the cover of the chuck center.

・In the case of high rotation or in the case of using a large amount of water soluble coolant, increase the frequency of 

lubrication according to the usage conditions.

 

4. Safety information about grease and anti-rust oil

Applicable range

・Designated grease
・Antirust agent applied to the product at the delivery.

First aid measures

A f t e r   i n h a l a t i o n : Remove victim to fresh air. If symptoms persist, call a physician.
After contact with skin: Wash off with mild cleaners and plenty of water. If symptoms persist, call a physician.
After contact with eyes: Rinse with plenty of water. If symptoms persist, call a physician.
A f t e r   i n g e s t i o n : If large amounts are swallowed, do not induce vomiting. Obtain medical attention.

・Please refer to each MSDS about the grease and the anti-rust oil which you prepared.

6-1. Periodic Inspection

6-2. Grease lubrication

6. Maintenance and Inspection

・To  keep  the  chuck  running  in  the  best  condition  for  a  long  time,  adequate  grease  lubrication  is  necessary.   

Insufficient  grease  lubrication  causes  a  drop  in  the  gripping  force,  operation  failure  at  low  hydraulic  pressure, 
drop in gripping precision, abnormal wearing, seizing, etc. The work will fly out due to a drop in the gripping force 
and this is dangerous.

Type

HW-08
HW-10
HW-12
HW-15

Eyebolt

M10
M12
M12
M12

・Remove the eyebolt or the belt without fail after using. If the chuck is rotated with the eyebolt, etc., attached, they 

may fly out and this is dangerous.

・Disassemble and clean the chuck at least once every 6 months or every 100,000 strokes (once every 2 months 

or  more  for  cutting  cast  metal).  If  cutting  powder  or  other  substances  stagnate  inside  the  chuck,  it  will  lead  to 
insufficient stroke and a drop in the gripping force, and this is dangerous as the work will fly out. Check each part 
carefully and replace any part that is worn or cracked.

・After inspection, apply sufficient grease in the designated areas and reassemble.
・After assembling, measure the gripping force according to the method on page 13, and check that the specified 

gripping force is obtained.

・If you stop the machine for a long period of time, remove the work from the machine. If you don't, the work can 

drop due to a drop in the hydraulic pressure or the cylinder can stop or malfunction.

・If you stop the machine or store the chuck for a long period of time, add grease to prevent rust.

6-3. Disassembling

Disassembling procedures

Read the following disassembling procedures with reference to page 5.

  1.Turn off the main power of the machine before starting work.
  2.Loosen the jaw attaching bolt [19], and remove the soft jaw [6] and the T-nut [10]. (4 place)
  3.Loosen the socket head cap screw [21], and remove the cover [11].
  4.Loosen the draw screw [14] with the hex key, and remove the plug [12].
  5.Loosen the lock nut locking screw [28], and remove the lock nut [13] with the handle [17].
  6.Loosen the chuck attaching bolt [18], and remove the chuck from the spindle.
  7.Remove the socket head cap screw [20].
  8.Loosen the set screw [23][26], and remove the lever pin [8][9].
  9.Remove the master jaw [4][5].
10.Remove the lever [7], the plunger [2] and the plunger piston [3].
11.Assemble  again  while  sufficiently  coating  the  recommended  grease  in  the  reverse  procedures  of  disassembling 

(Refer to page 21). At this time, pay sufficient attention so as not to make a mistake in the numbers of the body, 
master jaw, and the plunger piston. Always tighten the bolts at the specified torque (Refer to page 9).

12.Refer to page 28 about the installation procedure. (8-4. Attachment of chuck).

・Use an eyebolt or a hanging belt when attaching and detaching the chuck to and from the machine, as there is a 

danger of injury or damage if the chuck drops.

Table 7

Genuine

product

Conventional

product

CHUCK GREASE PRO 
Kitagawa chuck grease
Molykote EP Grease
Chuck EEZ grease
MOLYKOTE TP-42
Kluberpaste ME31-52

Kitagawa genuine product
(Kitagawa distributor of each country)
Conventional product
TORAY Dow Corning (only inside Japan)
Kitagawa-Northtech Inc. (North American region)
Dow Corning (Europe, Asian region)
Kluber lubrication (worldwide)

WARNING

WARNING

CAUTION

Содержание HW-08

Страница 1: ...this manual and the safety labels attached to the equipment Failure to follow these instructions and safety precautions could result in serious injury death or property damage Store this manual near e...

Страница 2: ...al Therefore do not perform any actions unless they are specifically allowed in this manual If any questions related to safety arise about operation control inspection and maintenance which are not sp...

Страница 3: ...e 5 1 Precautions during gripping work with chuck 5 2 Precautions during gripping work in irregular shape 5 3 Precautions related to usage of jaw 5 4 Precautions related to processing 5 5 Attachment o...

Страница 4: ...aw nut Lock nut Body Chuck attaching bolt Plug Draw screw Cover 3 Type display as shown below 1 1 Type display 1 2 Structural drawing Fig 1 Fig 2 1 Structural Drawing and Parts List 0 8 6 9 9 9 Design...

Страница 5: ...is for the chuck part 1 3 Scope of product Fig 3 To prevent the work from flying safe design maintenance and erroneous action prevention of the hydraulic sys tem to maintain the gripping force of the...

Страница 6: ...t jaw Lever Lever pin 1 3 Lever pin 2 4 T nut Cover Plug Lock nut Draw screw Draw nut Coil spring Connecting handle Chuck attaching bolt Jaw attaching bolt Socket head cap screw Socket head cap screw...

Страница 7: ...on which allows rotation only when the door is the manual mode or the test mode During spindle rotation do not turn off hydraulic pump power supply and do not operate switching valve Cutting off hydra...

Страница 8: ...orce which deter mines the gripping force of the chuck does not exceed Excessive input force can lead to break age of the chuck which is very dangerous as the chuck can work can be damaged and fly out...

Страница 9: ...o obtain the required gripping force If the gripping force is insufficient this is dangerous as the work will fly out Determine the gripping force required for processing by the machine tool manufactu...

Страница 10: ...ely stop the machine and consult with our company or the distributor Unbalanced work generates dangerous centri fugal forces and the work could fly out The work slips Loss of accuracy The work begins...

Страница 11: ...screw is broken and then a gripping force is lost instantaneously causing the workpiece to fly out Use a cylinder with a lock valve safety valve check valve incorporated in case of sudden hydraulic p...

Страница 12: ...ower before adding grease Do not grip a chuck with a chuck Because it is easy to confuse the specifi cations of each chuck and the protrusion become long and is apt to raise rotation speed it is apt t...

Страница 13: ...W 15 Reference 1kN 101 97kgf 1MPa 10 197kgf cm 2 When storing this product the product should be subjected to the antirust treatment and stored in a place free from wetting condensation or freeze G6 3...

Страница 14: ...9 The numerical values are obtained with the Kitagawa gripping force meter The gripping position of the gripping force meter is at a position 1 2 of the height of the soft jaw top surface height from...

Страница 15: ...If the gripping part center height of the used top jaw dimension H in Fig 7 is higher than the gripping part center height of the standard soft jaw a large load is applied to the master jaw T nut jaw...

Страница 16: ...HEIGHT H mm GRIPPING CENTER HEIGHT H mm GRIPPING CENTER HEIGHT H mm INPUT FORCE PER A PLUNGER GRIPPING FORCE LIMIT INPUT FORCE PER A PLUNGER GRIPPING FORCE LIMIT STD SOFT JAW 20 0 28kN 24kN 20kN 12kN...

Страница 17: ...dynamic gripping force gripping force loss by static gripping force centrifugal force to become 1 3 of the static gripping force is 28kN and the required input to obtain this gripping force is 16 5kN...

Страница 18: ...the T nut and the attaching bolts attached to the chuck and do not use bolts other than these If commercially available bolts are used for an unavoidable reason use bolts at the strength classificati...

Страница 19: ...the No 4 jaw to the size B 4 2 Forming soft jaw When gripping the workpiece by this chuck basically grip it with 2 pairs of jaws in the same stroke position However if the workpiece dimensional toler...

Страница 20: ...ft jaw other than one made by Kitagawa Corporatin is used the engagement will be inferior and the master jaw will be deformed the gripping precision will worsen and the work will fly out due to grippi...

Страница 21: ...will break and this is dangerous as the chuck and work will fly out If the tool and the tool post contact the chuck or the work due to malfunction or tape mistake etc and impact is given immediately s...

Страница 22: ...4 Safety information about grease and anti rust oil Applicable range Designated grease Antirust agent applied to the product at the delivery First aid measures A f t e r i n h a l a t i o n Remove vi...

Страница 23: ...3 Disassembling Disassembling procedures Read the following disassembling procedures with reference to page 5 1 Turn off the main power of the machine before starting work 2 Loosen the jaw attaching b...

Страница 24: ...r the specification of the chuck Supply grease from the grease nipple and open and close the jaw several times without gripping a work Lower the rotation speed to a speed at which the required grippin...

Страница 25: ...to operate for the attaching equipment Install the hydraulic unit at a position where the drain hose is not kinked and the needle of the pressure gauge is easily read For Machine Tool Manufactures 8 1...

Страница 26: ...e draw bar and the draw pipe Especially when a large sized hydraulic unit is used excessive surge pressure is generated and the gripping force becomes large therefore it may result in breakage of the...

Страница 27: ...e are not broken under any operating conditions If the draw bar or draw pipe is screwed in inadequately the screw is broken and a gripping force is lost instantaneously causing the workpiece to fly ou...

Страница 28: ...ension dimension A in Fig 18 of the back plate so that the plunger nut end surface contacts the back plate and stops when pulling the plunger nut If the stroke is larger than the one specified it may...

Страница 29: ...ied torque 4 Connect the chuck to the draw bar and the draw pipe Joint the lock nut with the draw pipe using the tightening handle Then tighten the lock nut locking screw After installing the lock nut...

Страница 30: ...12100 2010 EN1550 1997 A1 2008 Ultimate disposal of this product should be handled according to all national laws and regulations 9 1 About standards and orders 9 3 About disposal 9 2 Information abou...

Страница 31: ......

Страница 32: ...China B07 25 F West Tower Yangcheng International Trading Centre No 122 East Tiyu Road Tianhe District Guangzhou China No 6 Lane 5 Lin Sen North Road Taipei Taiwan 803 Ho B Dong Woolim Lion s Valley...

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