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        ZX420-TC Facing & Contouring Head Service Manual
         Contents
1.                         f                                                                                                           2 x  JIL 7     St Matas eae St j Fa  TIS  il    N a                                                          Fig 1 02 camlocs in their open position and aligned with camloc studs    3  Wind out the inner spindle of the machine so that it protrudes from the bonnet face    4  Make sure that the ZX420 head taper and the machines inner spindle taper are  thoroughly clean    5  Locate the shank of the ZX420 head into the taper of the machines inner spindle and  clamp it into the spindle using the machines pull stud or draw bar arrangement   See fig  1 03                                                                                                                                                                                                                                                              INNER SPINDLE WOUND FORWARD AND  ZX420 HEAD TAPER CLAMPED INTO SPINDLE    Fig 1 03 Locating and clamping the ZX420 head into the inner spindle    6  Slowly wind back the inner spindle  locating the ZX420 head into the bonnet  until  the mating faces are just clear or touching each other     7  Clamp the ZX420 head into the bonnet by depressing the camlocs  then using an  allen key turn the camlocs into their locked position                                                  A  As       GA      MEN                      8  Remove the sling that was used to 
2.               ADJUSTING SCREWS  DETAIL 31    Fig 2 03 Gib strip adjustment    2  The actuator should centralize the slide in the main body  3  Tighten the adjusting screws  detai  37  until the gib strips grip the cross slide    4  Carefully slacken the adjusting screws  detail 31  until minimum clearance is achieved   See fig 2 03     11    Dismantling  amp  Assembly    1     4     Remove contouring head from the machine  reverse procedure as described  in chapter one    installation of head        Remove any tooling fitted to the cross slide  making sure to carefully mark  the tooling position on the cross slide for accurate re assembly     Remove five caphead screws  detail 107  from each keeper plate  detail 1  on  the front of the contouring head  both left hand and right hand keeper plates   Make careful note of which keeper plate if fitted to which side of the body  to  ensure correct re assembly           CEO c O fh                                       Fig 1    Whilst pressing the plunger  detail 30   actuate the shank  detail 16  fully  forwards  thus pushing the cross slide and attached toolslide  details 4  amp  5   forwards also  to enable their removal from the head  The cross slide and  attached toolslide can now be pulled off the actuator  detail 7  in a diagonally  upwards direction away from the main body     A   gt     Soo CS ae  4                                     Fig 3    12    5  Remove four caphead screws  detail 106  securing the adaptor nose  detail
3.   0058  2  542 14 4    20    ZX420 CON FACING  amp  CONTOURING HEAD SERVICE MANUAL    Torque Settings    The values are based on black finish allov screws    ZX 420 Con      Torque  Detail Thread  65    Pullstud M24 or 1    UNC    Keeper plate cap head    Screw    Slipper key cap head    Screw       Tool slide cap head  screw    The above table is intended for general guidance only  In practice  the actual torque tightening  values can vary on whether the screws are lubricated or not  Common sense should prevail in the  application of the above values  Another method of determining the correct torque is to tighten  the screw with an Allen key  hexagon wrench to finger tight and then a further 30   past this  position     Cogsdill  Nuneaton will not take any responsibility for miss use of this information which leads  to damage of the ZX420 head  tooling or personal injury    21    ZX420 CON FACING  amp  CONTOURING HEAD SERVICE MANUAL    Chapter    General Assembly Drawing   amp  Parts List    e General assembly drawing of ZX420 TC head  ZX420 TC GA      e Parts list for to be used in conjunction with the above drawing     e Standard tooling for the ZX420 TC head     22    
4.   14  to the main body  detail 6   Now pull the adaptor nose off approximately  12 to 20mm  this will give access to the coolant connector block  detail 18         6  Accessing through the 12 to 20mm gap between the main body  detail 6  and  adaptor nose  detail 14   actuate the shank backwards until the two caphead  screws  detail 117  securing the coolant block  detail 18  to the actuator   detail 7  can be seen through the gap  Loosen these two caphead screws   detail 117  but do not remove them                             Fig 6    7  The adaptor nose  detail 14  can now be carefully pulled off the back of the  main body  detail 6   Make sure to pull the adaptor nose off squarely or    damage to the plunger  detail 30  and coolant connector block  detail 18  will  occur        Fig 7    13    9     10     11     12     13     The plunger  detail 30  and spring  detail 125  scated behind the plunger can  now be pulled out the back of the head  At this point the spring cap  detail  29  on the side of the head can be unscrewed and removed  This will allow  removal of the spring  detail 134   locking pin  detail 28  and ball bearing   detail 124         The actuator  detail 7  can now be pulled out of the back of the head  Taking  care not to damage the plunger  detail 30  and coolant connector block  detail    18         Once the actuator is removed check the seals on the attached coolant  connector block  details 101  102  amp  104  for wear or damage  replace as  required   
5.   Check actuator keys  detail 9  for wear or damage  If required remove the  keys from the actuator  detail 7  by removing the caphead screws  detail 15  amp   115   Make note of which key fitted to which actuator slot prior to removal   Also note position the caphead screw  detail 15  as this is also a lube access  point to the keys     Assembly is the reverse of steps 1 10    Important on step 6 do not fully tighten caphead screws  detail 117   securing the coolant connector block  detail 18  to the actuator  detail  7  until the coolant connector block  detail 18  is fully engaged and self  centred in the hole in the main body  detail 6      Once assembled adjust the gib strips as detailed in chapter two  gib strip  adjustment        14    Recommended Spares    To minimise downtime of your ZX420 head we recommend you carry spare parts  Below is a    list of the main spare items that may need replacement through normal wear and tear  The  spare parts can be fitted  by you the customer     e Actuator ZX420 10  e Toolslide ZX 420 05  e Slipper keys ZX420 TC 20  e O Ring Set    Note     In the event of the ZX420 head being damaged we strongly advise customers to return it to  Cogsdill Nuneaton for evaluation and repair     15    Lubrication Recommendations    The ZX 420 head requires regular maintenance whilst being used and should be cleaned free  from swarf and any other foreign matter     To ensure the ZX420 con remains in good working order it is recommend that the interna
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7. Hi    COGSDILL    NUNEATON LTD     Precision Engineers    ZX420 TC  Facing  amp  Contouring Head  Service Manual       PRECISION ENGINEERS    ZX420 TC Facing  amp  Contouring Head  Service Manual    Cogsdill     Nuneaton Ltd  Tenlons Road   Nuneaton   England  Phone  44  0  2476 383792   Fax  44  0  2476 344433  Email  sales cogsdill co uk    Table of Contents    Customer Order Details  Introduction    CHAPTER 1    Installation of Head    CHAPTER 2    Camloc Adjustment    Gib Strip Adjustment    CHAPTER 3  Dismantling  amp  Assembly    CHAPTER 4  Recommended Spares    CHAPTER 5  Lubrication Recommendations    CHAPTER 6  Torque Settings    CHAPTER 7  Recommended Spares    10    11    12    15    16    21    22    Customer Order Details    Customer   When contacting  Cogsdill Nuneaton Quote No   for information  about your order   please have this  sheet to hand  Works Order No      Sales Order Processing No     Additional Notes and Related Tooling      Introduction    spindles  such as horizontal boring machines with C N C  controls  The combination   of the spindle feed  z axis  and the workpiece  w axis  enables most profiles to be   accurately machined  The independent spindle feed  z axis  is utilised to actuate the  feed out mechanism in the facing head  Different makes of horizontal boring machine or  machining centre  will have different home positions for their inner spindle  Shank gauge line  to the spindle nose face   Cogsdill     Nuneaton   s facing heads are indivi
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11. dually set to suit cach  customer   s machines if our standard home position will not fit     C ogsdill Nuneaton   s Facing heads are designed to work on machines with live    Use the Cogsdill     Nuneaton facing and contouring heads to machine large castings  or components that are awkward for holding or rotating for conventional machining  External  turning  grooving  taper boring  radius forming  chamfering  recessing  threading can all be  finished in one set up without removing the workpiece from the machine tool table     Cogsdill     Nuneaton   s development of quality tooling and pursuit for continuous  improvement in our product lines  has now resulted in a proven rugged design for it   s facing  heads  All moving parts are precision ground and heat treated to ensure lasting accuracy with  next to no backlash  Oilways are built into internal slide mechanisms and lubrication is  through easily accessible grease nipples  Cross slides and actuators may be coated with a  friction reducer to reduce actuation pressures  resulting in improved machining capabilities  and reduced wear to critical parts upon request     When you the customer feel it necessary to design and manufacture your own tooling   please feel free to consult us about your intention  We can provide any information to you  that you might need  Our aim is to serve and satisfy you the customer  please take advantage  of this offer     Suitable for Horizontal Boring Machines  with Size 5  6  amp  7 Inch Spind
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15. l  working parts are well greased at regular intervals via the external grease nipples found on the  outside of the body     If the head is to be stored for a long time after the completion of a machining operation  we  recommend that the ZX420 head is dismantled and the working and moving parts are  checked for wear or damage and then well greased and lubricated before re assembling for  storage  If the ZX420 head is used in a humid or hostile climate it should be sprayed with a  proprietary rust inhibitor     The above procedure will avoid corrosion and ensure that the ZX420 head remains in good  working order        Grease Nipples       Fig 4 01 Location of external grease nipples    16    Operational reliabilty and trouble free service of high performance machinery and tooling  depends on the correct selection and use of high quality specialised lubricants    1  It is recommend that a water resistant paste  Kl  ber Altemp Q NB 50  be used in  this type of tool  The paste should be applied to all moving parts or surfaces when  the tool is dismantled for cleaning and maintenance or when the tool is stored for an  extended period of time     2  To lubricate the ZX420 TC head during use  it is recommended that a low soap  grease  Calcuim Cup No 2  should be applied via the greae nipples  as a general  guideline  every 200 300 operating hours or as deemed necessary in practice  The  lubrication frequency can vary depending upon the working environment  working  speed  coolant 
16. les                                                                                                                                                                    LENGTH EXCLUDING TOOLING   A  sur E    TL      MACHINE SPINDLE TRAVEL C    DIAMETER RANGE       Installation of Head    1  Using an eyebolt and ensuring both the bonnet and spindle nose location diameters  are thoroughly clean carefullv lift the bonnet and locate it onto the spindle nose of the  machine   Secure the bonnet in position with the four socket head cap screws  See fig  1 01     SPINDLE NOSE                                                                                                 EYE BOLT l       a N    A       BO NN ET Y    Sy   H  N INNER SPINDLE      SOCKET HEAD CAP SCREWS N N  gt  J    N j  ee  R    we N     y DI    H y IH    seed  PT          x  N  J              gt       ER    H 1     asek    ssd WA            IN      Fig 1 01 Fitting the bonnet to the spindle nose    2  Before commencing to load the ZX 420 head onto the machine  ensure all top tooling  and slide adaptors are removed from the slide  Check that the camlocs in the bonnet  are in their open position  The camlocs are spring loaded and will click into their  open position when turned with an allen key  Using a crane  and with the ZX420  carefully slung lift into it in to a load position fully making sure the camloc studs are in  line with their respective holes  See fig 1 02     ENSURE ALL FOU  ARE LINE WITH CAM                
17. lift the ZX420 head   11  The ZX420 head is now ready for use  See fig 1 04     9  Set inner spindle into its HOME position    10  Fit required tooling    Lock 1    ee       OR   TOUCHING    CLEAR       JST                   Fig 1 04 Locating and clamping the ZX 420 onto the machine          Do not exceed the slide stroke of        IMPORTANT     Camloc Adjustment    In the locked position  the indicator mark on thr camloc should be in between the                   il  two lines indicated by the arrow and lock mar ked on the bonnet   a       mn   f ALN   I   7 X _    KA   J   N J   Ssl 4  ae u wee   a   wm uw          Figure 2 01 camloc stud in locked position    2  If the camloc does not lock  i e  the indicator mark does not fall within the lock  position  then the camloc stud needs to be adjusted    CAMLOC STUD i en  a IAL CAP HEAD SCREW          Figure 2 02 Adjustment of camloc stud    3  To adjust  remove the cap head screw that retains the camloc stud and screw in or out  to suit  Replace and tighten the cap head screw after adjustment     10    Gib Strip Adjustment    1  Slacken the four adjusting screws  detail 31                    ADJUSTING SCREWS  DETAIL 31  j        GIB STRIP  DETAIL 3                                                          GIB STRIP  DETAIL 3    4                                     aN   ID   E    ETET             KEEPER STRIP    REMOVED THIS SIDE                                                                                                     
18. used  machine used  number of head actuations and distance stroked  by the tool     3  A lube gun  Ref  part No CN D24  is available from Cogsdill Nuneaton to make  routine maintainance easy    To attain long term  maintenance free operation of Cogsdill tooling it is recommended that  the toolslides and sliding parts be lubricated with Kl  ber Altemp Lubrications special  lubricating paste     17    Altemp Q NB 50    The benefits of this tribologically developed lubricant are   Long term lubrication product for Boundary friction conditions   gt  Enables precise positional accuracy and repeatability   gt  Prevents fretting corrosion   gt  Provides unparalleled resistance to water based coolants   gt  Resists centrifuging at high rotational speeds   gt  No workplace contamination    Apply Altemp Q NB 50 paste to all sliding surfaces on assembly of the head and thereafter by  high pressure lever type grease gun  Frequent relubrication with Altemp Q NB 50 is not  generally required  depending on service conditions  As a guideline we recommend re    application every 200     300 operating hours  or as deemed necessary in practice     Mixing of lubricants should be avoided and could result in    operational performance deficit    18    Kl  ber Lubrication  Branches Worldwide     Argentina   Kl  ber Lubrication Argentina SA    Martin J  Haedo 4301 63    1602  Florida  Prov  Buenos Aires   Tel   54 11  4709 1400 0236 4505 3686 1055  Fax   54 11  709 5394    Australia   Kl  ber Lubric
    
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