.he CHAPTER 15 CORBIN HANDBOOK AND CATALOG NO. 7, PAGE #

                         ACCESSORIES FOR THE HYDRO-PRESS

          The  Hydro-press  comes with a standard floating punch  holder,  a 
     tank  of hydraulic fluid (you may need to add a little),  and  the  USA 
     models  comes with a standard 115 volt power cord.   Export models come 
     with  a  power  cable but without a plug,  or with a  plug  matching  a 
     standard US 3-prong 220 volt outlet (which may have to be replaced with 
     a  plug meeting conventional standards for the country to which  it  is 
     exported).
          The  machine is designed to operate with Corbin swage dies of  the 
     Hydro-press  type without any optional accessory items.   The  external 
     punches  fit  into  the punch holder and the dies with  their  internal 
     punches screw into the press ram.   There are a number of items which a 
     commercial  operator  would be wise to have on hand,  either  as  spare 
     parts  or  as  accessory supplies to increase the  versatility  of  the 
     machine.                


     FPH-1-H  Floating Punch Holder, Hydro-press
          One comes with the press.   Having extras with the punch installed 
     and  a  locking nut secured makes it possible to pre-set commonly  used 
     punch depths for quick installation.  One can also order this unit with 
     a hole and retainer bushing size for 12 gauge shotgun and other  larger 
     calibers  (70  caliber and up).   Specify the "shotgun"  version.   The 
     regular  punch  holder  does not work with huge  12  gauge  and  larger 
     punches.


     A-220V    220 Volt Power Option, Hydro-press
          For  use  on  50-60 Hz single phase 220  volt  current,  which  is 
     standard line voltage in many countries besides the United States,  one 
     should  order  the  Hydro-press  with this  option  factory  installed.  
     Conversion  in  the  field is NOT  recommended,  although  a  qualified 
     electrician  can do it with the correct  components.    The  conversion 
     includes  an  internal  transformer  so  that  the  standard  115  volt 
     indicator lamps and electronic circuits can still be used (one does not 
     need  to purchase special 220 volt bulbs,  etc.,  for the machine after 
     the conversion).


     RY-1      Logic Relay, Hydro-press
          There  are a number of logic relays in the Hydro-press to  control 
     various  functions.   They are highly reliable and  interchangable,  so 
     that it is easy to troubleshoot a potential defective relay by changing 
     it with one of the others to see if the problem goes away or shifts  to 
     another function.  It is a good idea in isolated areas, or for critical 
     schedules,  to  have  at least one spare logic relay on hand  "just  in 
     case".   Logic relays plug into sockets in the Hydro-press.   They only 
     go in one way, so it isn't possible to put them in "backward".


     PUNCH-H   Punch, Hydro-press
          As  with the other swaging systems,  the Hydro-press system can be 
     expanded  to other operations by adding optional external  or  internal 
     punches to an existing die set.   To order any punch,  as a replacement 
     or spare,  or as a new option, use this catalog number, followed by the 
     caliber,  whether  INTERNAL or EXTERNAL,  the kind of die it works with 
     (such as CS-1,  PF-1,  etc.),  and any special face shape or  diameters 
     that  are needed to make it work for your application (as,  Keith nose, 
     or diameter to fit inside sample jacket provided with order).


     TDL-1     Timer Module, Hydro-press
          An  electronic  timer module,  also known as a time  delay  relay, 
     controls the dwell time at the top of the Hydro-press stroke.   You can 
     adjust it for any desired dwell,  from milliseconds (0.001 seconds)  to 
     several  seconds.   A top-panel knob gives you immediate control of the 
     dwell  time on mid-1986 and later models.   The solid-state  electronic 
     module is very reliable,  but it is easily changed by plugging in a new 
     unit  if  trouble  should  ever  develop.    In  critical  or  isolated 
     situations, a spare module is a good idea.


     PDX-1     Position Transducer, Hydro-press
          The  electronic position transducers are  sophistocated  proximity 
     detectors, which sense the position of the ram by the near-field effect 
     of  a magnetic detector circuit inside the unit.   These small threaded 
     cylinders hold a considerable amount of electronic circuitry,  and  are 
     highly reliable.   A red LED indicator shows you if the unit is working 
     by lighting when steel objects come close to the sensor face.
          There  are  THREE of these transducers on the mid-1986  and  later 
     model  Hydro-presses,  replacing  the earlier  Micro-Switch  roller-arm 
     limit switches.   They offer remarkable accuracy and ease of adjustment 
     -- simply  slide  them up or down their steel standard to set the  top, 
     bottom,  and loading positions for the press stroke.   However,  if you 
     should  happen to physically set the transducers too close to the  ram, 
     you can run the ram into one and smash it.   Replacement is  moderately 
     easy:  remove the back cabinet cover, and trace the shielded cable from 
     the broken transducer to the terminal strip on the logic board.  Loosen 
     the  screws and remove the wires from the unit to this terminal  strip, 
     and replace the new transducer with the same connections.
          If  you are careful not to adjust the transducers forward so  they 
     obviously  are in the path of the moving ram guide plate,  this  damage 
     will  never happen.   It is not really necessary to adjust the position 
     horizontally at any time.    Vertical adjustment is made by sliding the 
     transducer up and down on the standard,  in its slot.   Finger pressure 
     is  all  you need to hold the transducer locked in  position  with  its 
     locking   nut.    This  is  a  spare  part  that  probably  won't  need 
     replacement,  but in very remote areas and critical applications, where 
     being out of operation for a week or ten days would cost more than  the 
     transducer, it is a good idea.


     SV-1      Solenoid Valve, Hydro-press
          The  main  hydraulic  control in the press is the  4-way  electric 
     valve  that  switches  oil  flow direction in  and  out  of  the  drive 
     cylinder.   This valve usually has a very long life, but can be damaged 
     by contamination in the hydraulic fluid, incorrect kind of fluid, chips 
     or dirt in the fluid,  or normal wear.  Since it takes about 30 minutes 
     to remove the old valve and install a new one, the first time, it isn't 
     a troubleshooting technique to do this routinely and spares are usually 
     a good idea only if the application is very critical.  The main symptom 
     of a bad valve is erratic movement or variation in speed from stroke to 
     stroke,  loud noises from hydraulic fluid vibrating as it tries to move 
     past a partly stuck valve opening, failure to stop at the top or bottom 
     position  of the stroke,  and other failures related to ram movement or 
     speed that are erratic in nature or produce accompanying loud noises.
          A defective solenoid valve does not cause harm to the  press,  and 
     can  be operated if you can put up with the symptoms.   But one failure 
     mode  (where  the valve sticks in position instead of  switching  every 
     time) can cause the press to continue upward when it should be stopped, 
     and this can cause a problem (such as extruding all the lead out of the 
     core  swage  die  instead  of  making  the  right  weight  of   core!).  
     Fortunately,  such  problems  are extremely rare.   The solution is  to 
     remove the valve and replace it.
          Solenoid  valves  do  not  require removal  of  any  plumbing  for 
     replacment.   They  are  mounted on a sub-plate which carries  all  the 
     steel  tubing and ports.   The valve control wires (4) unplug from  the 
     rest  of  the system using a very obvious connector that you  will  see 
     when  you  open  the cabinet and trace the wires out  of  the  solenoid 
     valve.   A cover plate on top of the unit removes (with corner  screws) 
     to  expose  the box that holds the wire connections and also gives  you 
     vertical  access  to the corner scews that hold the valve on  the  sub-
     plate.
          Removal  of  these  corner screws allows you  to  lift  the  valve 
     straight  up,  off the sub-plate.   A small amount of oil will  trickle 
     out,  but  as  long as the pump is turned off there will be no need  to 
     worry about a flood of hydraulic fluid.  There are four o-rings on four 
     recessed port openings beneath the valve,  which you must make sure are 
     not lost.   Other than that, replacement is as simple as unplugging and 
     unscrewing the old valve, and putting the new one in its place. 
          Since  this  component is moderately expensive,  and  is  kept  in 
     stock,  it  is not something that most people need to stock as a spare.  
     The  ends  of the coil housings contain a movable manual  plunger  that 
     shifts the valve so you can test the operation.   If a symptom  appears 
     that you suspect is related to a sticking valve, press on the center of 
     one  and  then the other end cap (solenoid valve covers) with  a  small 
     dowel  to push the valve spool and help it shift into correct  position 
     while  the press is trying to run.   If this cures the problem then the 
     valve  is probably at fault.   The right end to push depends  on  which 
     direction the press is running.   One must be careful not to reach into 
     the  top panel electric wiring while fooling around inside the  cabinet 
     -- we  recommend  bringing in a qualified electrician for any  internal 
     service work.


     CHF-128   Corbin Hydraulic Fluid, Gallon Can
          Spare fluid is handy if you should ever need to replace a  fitting 
     or  if  you  spill fluid while moving the press.   If the  press  isn't 
     tipped too far,  but is kept vertical while moving, it should not spill 
     any fluid.   Fluid lasts for years in a typical operation without undue 
     contamination.   Condensed moisture,  bits of metal powder from natural 
     wear of the pump vanes and valves,  heat by-products in the fluid  from 
     long,  hard use, and dust from outside the system are potential reasons 
     why you might want to change the fluid after a few years of operation.
          A  combination of temperature and oil level gauge is located right 
     on the oil reservoir,  inside the cabinet.   You can easily see if  the 
     fluid  is low or the temperature rises above the recommended maximum of 
     140 degrees F.   Extended use at high temperature will cause the oil to 
     break  down,  and  can  lower the pressure you are  able  to  generate.  
     Eventual failure of the cylinder and valve seals,  as well as those  on 
     the  pump,  result from prolonged high-temperature operation above  the 
     recommended  levels.    Low  fluid  level  leads  to  high  temperature 
     operation  since  the  oil  does not have sufficient  thermal  mass  to 
     transfer  and adsorb the heat over the back surface of the tank  (which 
     is designed to act as a heat exchanger with the air compression of  the 
     dual  cooling  fans and air expansion during exit through the  closely-
     spaced exhaust grill.


     IL-1      Logic Indicator Bulb, Hydro-press
          Telephone-quality  115 volt indicator bulbs are used in  order  to 
     provide  bright  display  of the status of  the  logic  circuits.   LED 
     indicators  were  not chosen here,  since a clearly-visible display  in 
     bright light was deemed necessary for operator safety.  Spare bulbs are 
     a good idea.  They are not expensive and last a very long time (typical 
     bulb life is over 10,000 hours).   The bulbs are changed by  unscrewing 
     the  colored caps from the indicators,  and pulling straight out on the 
     glass bulb.  There are THREE IL-1 bulbs in each Hydro-press.


     IL-2      Work Lamp Bulb, Hydro-press
          The inspection lamp has a pre-focused ellipsoid spotlight bulb  of 
     the  R-14  type,   with  screw  base.   This  bulb  provides  excellent 
     inspection  lighting  with low power and heat.   It is a 115 volt  bulb 
     with a long life in normal use.   A spare is handy.  Only one such bulb 
     is used in each Hydro-press.

     FSO-16    Corbin Gun Oil, Pint Can
          This  instrument  grade  ISO-15  oil  is  highly  recommended  for 
     lubrication of the ground rods and bearings in the Hydro-press head, as 
     well  as  for preservation of the dies and punches while  they  are  in 
     storage.  It is a very economical product that works quite well as both 
     an instrument and lathe oil.  Originally marketed as Five Star Gun Oil, 
     the  pint  can contains as much oil as EIGHT conventional 2-ounce  cans 
     for about half the price.
