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Service\Repair                                                                Formech FM660           

 
 

 

Clamp & table seals

 

These are regarded as a consumable part and should be replaced when signs of wear become 
apparent. 

See section dealing with Vacuum.

  

Formech  supply  a  kit  comprising  the  necessary  seals  and  sealant  for  the 

Formech 

FM660/FM660PT

.  We recommend that only the correct silicone seals and sealant are used to 

give an effective seal. 

 

To replace a damaged or worn seal

 

 

Remove the all traces of the existing seal and sealant.  

 

Using  masking  tape,  make  a  frame  inside  where  the  seal  will  go  (table)  or  outside 
(clamp). Gain a good ‘key’ to the sealing surface using an abraisive cloth or paper.   

 

Degrease the area and remove all dust. 

 

Cut the seal strip to the lengths required allowing for 25mm overlap at the corners. 

 

Apply a bead of sealant to the masked area where the seal is to be placed and spread 
to achieve a thin and linear coating.  Ensure a generous layer covers all of the sealing 
area.  

 

Bed  down  the  strips  of  silicon  seal  until  it  is  firmly  seated  in  to  the  sealant.  Do  not 
attempt  to  stretch  the  seal  strip  it  will  contract  back  to  its  original  size  before  the 
sealant sets. 

 

Ensure  the  strips  are  straight  along  the  sides  and  perpendicular  at  the  corners.  Cut 
through the strips at 45° where they meet at the corners. Continue this process for all 4 
corners.  

 

Apply  a  small  amount  of  sealant  to  the  mitred  joints  and  firm  together  to  achieve  a 
clean, square and close joint. Place masking tape over the mitred corners to help keep 
them firmly positioned until the sealant sets.   

 

Carefully remove the masking tape and leave overnight 

 

 

Panel seals

 

The rubber seals fitted to the side panels should be periodically inspected and replaced where 
necessary.  Failure of these seals will prevent the correct functioning of the auto-level and pre-
stretch functions. 

If  you  are  unable  to  cure  any  problem  relating  to  your machine,  or  if  you  wish  to  order  spare 
parts please contact us at the address on the front of this manual stating the model,

 FM660 / 

FM660PT,

 the serial no. (on specification plate), and a full description of the fault or parts you 

need. 

 

 

 

 

 

22

Summary of Contents for FM660

Page 1: ...r table and clinica version Single Heater Vacuum Forming Machine Installation Operating and Service Manual For Parts Service Technical Assistance Telephone 44 0 1582 46 97 97 Fax 44 0 1582 46 96 46 Em...

Page 2: ...and use 9 Operating Procedure 10 Operating Techniques 11 Heaters 11 Heater timer 12 Bubble moulding 12 Tools 13 Plastics 14 Post Forming Operations 14 After forming 14 Trimming 14 Forming Difficulties...

Page 3: ...derstand that high pressures may be present within parts of the pneumatic system even after the supply has been isolated Special care must be taken if any parts have become jammed to ensure that all p...

Page 4: ...ry from compressed air Pressures up to 100 PSI will be present in large volumes on this machine BE EXTRA CAUTIOUS WHEN DEALING WITH COMPRESSED AIR EVEN AFTER MAIN SUPPLY HAS BEEN SHUT OFF DANGEROUS RE...

Page 5: ...formed A countdown timer is fitted as standard The machine has been designed to be highly adaptable and functions such as changing a mould or fitting reducing windows which allow smaller sheets to be...

Page 6: ...ndard voltage 220 240V S Phase Forming area 620mm x 620mm 380 415V 3 Phase Depth of draw 400mm Standard frequency 50 60Hz Mat thickness 6 0mm max Standard max Power 7550W Overall height 1280mm Overall...

Page 7: ...ressure must not exceed 6BAR or 80 PSI Attaching the stabiliser bar arrangement The kit comprises two sidepieces one stabiliser bar and fixing screws 1 Remove the two lower screws from each side of th...

Page 8: ...bolts supplied The fan mounting post should be attached to the cross member so that the fan can be positioned behind the cross member directing the fan draft forward away from the heater 3 The swivel...

Page 9: ...pply vacuum to the table hole Pressing any sequence button will unlatch this function Cooling Fan There is an ON and an OFF button for this function No other buttons will affect the fan operation Rele...

Page 10: ...ating cycle time is known then the timer can be set prior to bringing the heater forward If not using the timer push the heater back slightly to test the softness of the plastic manually or to observe...

Page 11: ...that the rear of the heater will always run hotter than the front Having set the heaters slight adjustments may have to be made depending on the mould design plastic type thickness colour and the mach...

Page 12: ...s down the seconds to give a useful indication of the heat time remaining An audible bleep is given when the countdown is complete and the display resets to the pre set time The buzzer indicates that...

Page 13: ...the plastic sheet before it can take up the full definition Resin tools combine most of the advantages of metal moulds with relative ease of manufacture Various resinous materials are commercially ava...

Page 14: ...me cases painted the presence of release agent used to help free a tight moulding may make the surface resistant to further decoration Trimming An ideal moulding will be ready for use when removed fro...

Page 15: ...es on mould Is mould restricting vacuum flow Are vacuum tracks in mould adequate Webbing small pleats at corners of mouldings Incorrect pre stretch height Adjust pre stretch flow and or time Check pan...

Page 16: ...zoning Thick tops on finished mouldings Chill marks Mould too cold causing rapid cooling on contact Increase mould temperature Adjust flow on water cooled moulds Design of mould Use plug tool to assis...

Page 17: ...ing elements contain a length of resistance wire internally which becomes extremely hot when electricity is applied The wire expands and contracts as it heats and cools Eventually due to the continual...

Page 18: ...igue and require replacement Only the correct grade of cable should be used and the work carried out by a skilled technician The ceramic heating elements should be periodically inspected particularly...

Page 19: ...tomatic sheet levelling system An optical sensor directs a beam of infrared light across the machine a honeycomb reflector receives this light and shines it back to the sensor If the beam is broken ai...

Page 20: ...eals follow the procedure on page 21 Other causes of vacuum loss are loose or damaged flexible hose from table to metal pipe at back of machine blocked filters or build up of contamination in the vacu...

Page 21: ...corroded If the heater has been left in the forward position with no plastic in the clamp frame the table will start to overheat The pipe attached to the back of the table will shrink and constrict t...

Page 22: ...rdering any pneumatic spare parts The importance of filling the lubricator with oil on a daily basis cannot be over emphasised Adjust the lubricator such that a small amount of oil mist is visible in...

Page 23: ...rips of silicon seal until it is firmly seated in to the sealant Do not attempt to stretch the seal strip it will contract back to its original size before the sealant sets Ensure the strips are strai...

Page 24: ...us at the below address stating the model FM660 manual or power table the serial No on specification plate and a full description of the fault or parts you need 23 Formech International Limited Unit...

Page 25: ...Zone 3 L2 to Zone 4 L3 to Zone 5 L3 to Zone 6 N Beam Sensor Blue 0V Brown 12V Black Signal System output PCB Multi function user inferface control panel IDC 20 Way IDC 20 Way Table Up Valve Coil optio...

Page 26: ...se 2 x 4mm SIAFGL Three phase N Star 3 x 2 5mm Neutral 4mm SIAFGL Conduit Adaptaflex 20mmwith Swivels 700mm Cable chain 32 Links End Bracket Zone feeds 1 5mm SIAFGL Red Earth 2 5mm SIAFGL G Y Stud N 1...

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