PPG-1622A Manual
Contents
1. To minimize the potential for personnel injury always be sure that 9 Alpha pack Packing Enterprise Page10 38 AP1622A L Sealer Service Manual machine operators and others working on the machinery are properly trained in the correct usage of the correct usage of the equipment and properly instructed regarding the safety procedures for operation WARNING Heat sealing arms and jaws on packaging machinery can become very hot after a period of use KEEP HANDS AWAY WHILE IN OPERATION AND USE CAUTION IF THE MACHINE HAS BEEN RUNNING RECENTLY WARNING ANY MODIFICATIONS TO EITHER THE ELECTRICAL CIRCUITRY OR THE MECHANICAL ASSEMBLIES OF THE MACHINERY WILL VOID ANY WARRANTTES ASSOCIATED WITH THIS EQUIPMENT Such modifications may introduce hazards that would not otherwise be associated with this machinery We will not be responsible for any consequences resulting from such unauthorized modifications WARNING The use of certain types of plastic films in sealing and or shrinking equipment may result in the release of HAZARDOUS FUMES due to the degradation of the film at high temperatures Before using any plastic film in this equipment the manufacturer or supplier of the film should be contacted for specific information concerning the potential release of hazardous fumes ADEQUATE VENTILATION MUST BE PROVIDED AT ALL TIMES Alpha pack Packing Enterprise Page11 38 AP1622A L Sealer Service Manual DESCRIPT2. 1 PS PS POWER SWITCH 1 E2 BS1 BRAEKER DZ47 C15 15A 1 CHINT E3 BS2 BREAKER DZ47 D1 1A 1 CHINT E4 BS3 BREAKER DZ47 D1 5A 1 CHINT ES TF TRANSFORMER 220V 50V 30V 24V 800 1 E6 RC RECTIFIER 3510 1 E7 MG1 2 MAGNET MAGNET 2 Alpha pack ES M MOTOR 41K25GN C 25W 220VAC 0 3A 1 Orient 5GN 10K E9 400 1 5UF 1 Orient E10 HT Heating Element 0 35 5mm 1 Alpha pack E11 KM1 2 4 CONTACTOR CJX2 0910 AC220V 9A INO 3 CHINT E12 KM3 CONTACTOR CJX2 0901 AC220V 9A INC 1 CHINT E13 RL RELAY MY2J 24VAC 1 OMRON E14 TIMER AH3 NA 3s 220VAC ON DELAY 1 ANLY 15 KT2 TIMER APS 2 108 220VAC OFF DELAY 1 ANLY E16 JLS PULSE SWITCH D4MC 5000 1 OMRON 38
3. Alpha pack Packing Enterprise Pages 38 AP1622A L Sealer Service Manual WARRAMTU EXCEPTIONS The following sealer parts are considered to be consumable and not under warranty 1 Conveyor Belt 2 Silicone Sponge 3 Nichrome Wire 4 Teflon Tapes 5 Nylon Sleeves Alpha pack Packing Enterprise Pages 38 AP1622A L Sealer Service Manual WARNINGS Every effort has been taken to ensure your safety while operating this machine however there still remain certain risks Do not allow this machine to be operated before informing all personnel of the following warnings WARNING Do not tamper with the electrical wiring Only use a licensed electrician for maintenance Always disconnect the electrical power before attempting any maintenance to all electrical and or moving parts WARNING In order to prevent injury to personnel and or machinery DO NOT INCREASE SETTINGS OR RATINGS ON EITHER ELECTRICAL OR MECHANICAL OVERLOAD SAFETY DEVICES WARNING KEEP HANDS AWAY FROM MOVTNG CONVEYORS AND ASSEMBLIES Conveyor belts that have become worn or frayed are capable of being hazardous They should be replaced promptly WARNING NEVER OPERATE THIS OR ANY MOVING EQUIPMENT WTTHOUT ALL COVERS AND GUARDS IN PLACE The internal mechanism of most packaging machinery contains numerous shear pinch and in running nip points many of which are capable of causing severe injury and or permanent disfigurement WARNING
4. L Sealer Service Manual ADJUSTMENT OF MAGNETS FOR CORRECT SEALING PRESSURE All magnets have been factory adjusted for equal sealing pressure throughout the length of both the front and side seal bars However if an adjustment is required proceed as follows 1 Disconnect the sealer s power source 2 Loosen the lower magnet bolts on all lower magnets so that the magnets settle to their lowest position in the mounting slots 3 Lower the sealer s operating handle fully and lift lower magnets to within 1 16 from the holders Tighten the mounting bolts securely to retain the proper adjustment CONVEYOR From time to time it will be necessary to disassemble the convey as it will need adjustments or replacement of worn parts and general maintenance The following information is given to assist the operator in that general fashion If the problem does not recify itself with these general exlanation discuss it with an authorized distributor of Alpha Pack or with Alpha pack directly REPLACING CONVEYOR MOTOR 1 Disconnect power plug from source of power 2 Disconnect the three power wires from the rear of the motor 3 Loosen the four bolts that hold the motor mount bracket to the 28 Alpha pack Packing Enterprise Page2938 AP1622A L Sealer Service Manual conveyor and slide motor mount forward 4 Loosen set screw on sprocket that is attached to he motor and remove sprocket 5 Remove four bolts These bolts hold the motor
5. head Set the seal timer from 1 to 3 setting then examine the seal Experimentally in small increments increase the element compensator air gap setting until a setting is obtained which yields a satisfactory seal and film cut off It is important to remember that the smallest air gap at which a satisfactory seal and film nut off is obtained is the correct setting If using PVC film we recommend to use a 2 x 3mill Teflon cloth or tape over the sealing wires for a clean cut off and reduced smoking 23 Alpha pack Packing Enterprise Pagez4 38 AP1622A L Sealer Service Manual POLYETHYLENE FILMS On the element compensator loosen the wing nut and turn the knurled head screw until a 1 4 air gap exists Tighten the wing nut With folded film i e two layers of film in the sealing position bring down the sealing head Set the seal timer to position 1 or 2 on the timer dial setting Ordinarily it will not be possible to obtain a satisfactory seal with the l A gap setting Experimentally in small increments increase the element compensator air gap setting until a setting is obtained which yields a satisfactory seal and film cut off Please note Any time you are using polyethylene films we recommend a 2 x 3mill Teflon cloth or tape to be placed over the seal wire for a better seal and performance SEALING ELEMENT REPLACEMENT The sealing elements are subject to constant wear and will eventually require replacement To replac
6. the carrier s driver before he leaves your company and insist on a notation of the loss or damage across the face of the freight bill Unless this is done no claim can be enforced against the trans portion If concealed loss or damage is discovered notify the carrier at once and insist on an inspection This absolutely necessary A concealed damage report must be made no later ten 10 days from the date the shipment was delivered Unless you do this the carrier will not consider any claim for loss or damage The carrier s agent will then make an inspection and grant a concealed damage notation If you give the transportation company a clear receipt for the goods the have been damaged or lost in transit you do so at your own risk and expense All claims must be filed within six 6 months of delivery date or carrier will not accept them We are willing to assist in every possible manner to collect claims for loss or damage however this does not make Alpha Pack responsible for collection on claims or replacement of material Alpha pack Packing Enterprise Pages 38 AP1622A L Sealer Service Manual WARRANTY IMPORTANT WARRANTY NOYICES OPERATING AND MAINTENANCE MANUAL The operating and maintenance manual has been carefully prepared to provide the user with all the information needed to properly install operate and maintain your Alpha PACK equipment Please read this manual carefully and refer to it for information on the care an
7. tray between Make sure that the center fold of film is placed at the rear of the product tray This allows the operator to insert product between the layers of film on the product tray and to prepare to move product and film into the sealing area When threading film make sure to pull more than sufficient film through the rollers across the product tray and into the sealing area to ensure sufficient film to begin operation Place product against rear of film separator tray Then move product into seal area Be sure to leave the bag loose around the product when making the seal This helps eliminate the seals from blowing out in the shrink tunnel This completes threading and or mounting film PIN PERFORATOR Located between the lower idler rollers the pin perforator is completely 15 Alpha pack Packing Enterprise Page16 38 AP1622A L Sealer Service Manual synchronized with the seal arm and creates holes for air escape during shrinking each time a new seal is made The pin perforator is adjustable and must be properly placed in conjunction with the width of the desired package The positioning should always be re evaluated when setting the machine for different size product or different size film Adjustments may be made with the adjustment knob attached to the bottom of the film rack FILM BRAKE The film brake is located on the operator side of the film cradle It serves to create tension on the dispensing film in order to pre
8. wires The timer activates the magnets and is adjustable from zero 0 to three 3 seconds E Take away Conveyor Unit Once the seal is completed the seal head automatically releases and the take away conveyor begins to run It is adjustable from zero 0 to three 6 seconds NOTE If too much tension is on the film while the bag is being made the seals will more than likely be weak or will blowout in the seal area while passing through the shrink tunnel Make sure to relax the film tension prior to sealing MOUNTING FILM Select the proper width of center fold film for the item being packaged 14 Alpha pack Packing Enterprise Page15138 AP1622A L Sealer Service Manual allowing for width and height of package With the package properly positioned within the film in the sealing area allow sufficient film to overlap the sealing bars so that a seal may readily be made without any possibility of open areas due to insufficient film Place film roll on cradle mount film rack See page 13 for a detailed drawing The center fold is to be placed away from the operator toward the rear of the machine Position film roll on rack and tighten film guide nuts to hold film roll in position Decide whether the film is A wind or B wind and thread it accordingly through the pin perforator Note that the perforator wheel turns freely and is not binding See diagram on page 13 Once threaded separate film top from bottom and insert product
9. ION AND SPECIFICATIONS OF AP 1622 SEALER DESCRIPTION The purpose of the AP 1622 sealer is for low volume packaging requiring excellent seals and minimal maintenance It features impulse and polyethylene modes for sealing bags This model incorporates an electromagnetic hold down system allowing the operator to load another package while the preceding package is being sealed This system provides consistent seals In addition a package take away convey or increases production speed by automatically discharging product into the tunnel SPECIFICATIONS Model AP 1622A Seal Area Width 16 Length 22 Volts 220VAC SINGLE PHASE Amperage 15 Machine Size Width 27 Length 63 Weight 300lbs Alpha pack Packing Enterprise Page1238 AP1622A L Sealer Service Manual INSTALLATION AND BASIC SET UP IMPORTANT Read this manual carefully and make it available to everyone connected vvith the supervision maintenance or production of this machine Additional copes are available at your request Contact your distributor for this information Be very careful when operating adjusting or servicing this equipment If in doubt stop and obtain qualified help before proceeding INSTALLATION OF AP 1622 SEALER Place the sealer in the desired location with the required electrical power source available See power requirements Make certain that proper electrical wiring 18 provided to guard against low voltage If the voltage is too lo
10. R PRESS BOARD 1 SHALF MAGNET VALVES MAGENT VALVE SUPPORTERS SWING PERCH CROSSBEAM 1 SCALE BOARD SILICA GEL SLOT BOARD 2 KNIGHT HEAD JRON BLOCKS 34 QUAN N e e N N e NO e e ee ee ee e N N Alpha pack Packing Enterprise M2 20 M2 21 AP1622A L Sealer Service Manual RADIATOR PRESS BOARD 2 FIXATION BOARD OF HEATER 2 Page3s 38 NO M3 1 M3 2 M3 3 M3 4 M3 5 M3 6 M3 7 M3 8 M3 9 M3 10 M3 11 M3 12 M3 13 M3 14 M3 15 M3 16 FIGURE 3 NAME STRAP TRAY TRANSNISSION BELT BEARING BEARING PEDESTAL TRANSFER TRUNK MAIN DRIVER CHAIN WHEEL COVER MAIN ROLLER CHAIN WHEEL SCREW MOTOR PLATE SUPPORT SHAFT BRIVEN ROLLER Motor Board ROLLER SUPPORTER 35 QUAN NO Rh N Rh a a Alpha pack Packing Enterprise Pagez6 38 AP1622A L Sealer Service Manual FIGURE 4 NO NAME QUAN 41 ROLLER M42 BREAK PLATE 4 FILM FEEDING SUPPORTER M44 AXIS SHAFT M4 5 WHEEL WITH NEEDLE M4 6 PLASTIC COVER MAIN DRIVER COVER M4 8 HEXAGRAM NUT M4 9 STAINLESS STEEL BOLT 8 40 e N N 36 Alpha pack Packing Enterprise Page3738 AP1622A L Sealer Service Manual Electrical Schematic i Alpha pack Packing Enterprise AP1622A L Sealer Service Manual Page38138 REPLACED ELECTRICAL PARTS LIST NO ITEM DESCRIPTION
11. SERVICE MANUAL AP 1622A L Sealer Alpha Pack Enterprise Limited Block D 5 F King Yip Factory Building 59 King Yip Street Kwun Tong Kowloon Hong Kong Tel 852 2416 1237 852 22646540 Alpha pack Packing Enterprise Page238 AP1622A L Sealer Service Manual IMPORTANT PLEASE READ THIS CAREFULLY The development of a good safety program that is rigidly enforced is absolutely imperative when involved in the operation of industrial equipment Our machinery is well designed and includes extremely important safety features The part you play through proper installation and maintenance procedures is of far greater significance than our designs Only properly trained individuals following rigidly enforced safety rules should be allowed to operate these machines Alpha pack Packing Enterprise Page3 38 AP1622A L Sealer Service Manual TABLE OF CONTENTS Table of Contents Preface Unpacking Warranty Warranty Exceptions Warnings Sealer Section Description and Specifications Installing and Basic Set up Film Threading Sequence of Operation Operation of AP 1622 Troubleshooting Chart Service Adjustments Maintenance Period Layout Electrical Panel Diagram Electrical Schematic Replacement Parts List Alpha pack Packing Enterprise Pages4 38 AP1622A L Sealer Service Manual UNPACKING THOOUGHLY INSPECT EQUIPMENT UPON ARRIVAL If goods are received short or in a damaged condition it is important that you notify
12. aft 5 Check that conveyor chain is not jammed or broken 21 Alpha pack Packing Enterprise Page22 38 AP1622A L Sealer Service Manual 6 Make sure wire number R S amp T are connected to the conveyor motor 7 Make sure wire number S amp T are connected to capacitor C 8 Make sure the Pulse Switch can work properly EXCESSIVE FILM DRAG 1 Check for proper film threading See diagram on page 13 2 Loosen film roll brake See diagram EXCESSIVE FILM 1 Tighten film roll brake WINDING OR SPILL 22 Alpha pack Packing Enterprise Pagez23 38 AP1622A L Sealer Service Manual SERVICE ADJUSTMENTS ELEMENT COMPENSAOR ADJUSTMENT Adjustment of the element compensator may be required under the following conditions 1 During continuous use After about 15 minutes of sealer operation check seal quality and if required reset compensator This may be necessary as a result of heat buildup in the sealing head 2 After installing new sealing elements 3 If charring of film 15 noted too much heat 4 If sealing is incomplete not enough heat To adjust the element compensator refer to the adjustment instructions given below ALL FILMS EXCEPT POLYETHYLENE Adjust the element compensator located at the end of the front seal bar by loosening the wing nut and turning the knurled head screw until a 1 4 air gap exists With folded film 1 e two layers of film in the sealing position bring down the sealing
13. d use of your Alpha Pack equipment It is recommended that additional copies be ordered for use by production maintenance and supervisory personnel Although care design of this sealer incorporates safeguards to protect personnel care should be used in operating adjusting and servicing Attention is directed to the warranty which accompanies all your equipment The terms and conditions of this warranty apply only to unmodified units Any unauthorized modifications to the equipment voids automatically this warranty Alpha pack Packing Enterprise Pages 38 AP1622A L Sealer Service Manual We warrant each new product manufactured to be free from defects in material and workmanship for a period of one 1 year from date of shipment by us This warranty is not transferable with any subsequent resale Defective parts under warranty must be returned to us freight prepaid our sole obligation and purchaser s sole remedy in the event of a warranty dispute shall be at our option to repair or replace the part in question Labor incurred in removing or installing the defective part is not covered by this warranty Prior to returning any parts for any reason contact us for a Return Authorization Number This number must accompany all returns This warranty shall not apply if equipment has been tampered with misused improperly installed altered or has received damage due to abuse carelessness accident or failure to follow recommended re
14. e sealing elements proceed as described below REPLACING FRONT ELEMENT l Remove heat sink by removing the two screws on front and backside of compensator Note Always check for excessive wear and replace heat sink if necessary Heat sink part 1521 08 2 Loosen the two set screws on the side and front bars This holds the opposite end of the front seal wire in place Loosen the two set screws on the compensator Remove old wire When the wire was 24 Alpha pack Packing Enterprise Page25 38 AP1622A L Sealer Service Manual originally installed it extended out of the top of the bar 2 and had a loop or book on it to prevent injury to hands It may be necessary to cut the loop off to remove seal wire 3 Cut off a piece of new seal wire 5 or 6 longer than necessary Using long nosed pliers measure 3 from one end and form a 90 degree bend Push the wire through the corner bead and tighten set screws Note For safety lease take your pliers and bend a loop in the wire that is extending out of the top of the bar 4 Insert wire through compensator hole With long nosed pliers grab wire on back side of compensator turn long nosed pliers toward seal bar until there is approximately 1 8 gap between compensator and seal bar Tighten down Allen Head screw Cut excess wire off 5 Remount heat sink making sure it fits snug against the wire If it is not snug the wire will become too hot in this area and break 6 Make sure t
15. e starting the machine Alpha pack Packing Enterprise Page3238 AP1622A L Sealer Service Manual MAINTENANCE PERIOD PER DAY 1 Cleaning the machine vvith soft cloth check if the silicone rubber sealing pad and the pin perforator and the electric units are good if not good please change it 2 Check if the conveyor belt is broken if it s broken please change it 1 Check and adjust the element compensator of the film PER WEEK 1 Put the lubricating oil on the chain PER MONTH 1 Check if the chain wheel bearing is not good if not good please change it 2 Check if the wires connection is good if it s not good please fix it 3 Check if the insulation of the electric circuitry and the motors are good if not please repair it 4 Check if the sealing knife base is good if it s not good please change it PER YEAR 1 Check if the motor bearing is good if not please repair it Alpha pack Packing Enterprise Pagez33 38 AP1622A L Sealer Service Manual LAYOUT FIGURE 1 AP1622A Alpha pack Packing Enterprise AP1622A L Sealer Service Manual Page34 38 NO M2 1 M2 2 2 3 2 4 2 5 2 6 M2 7 M2 8 M2 9 M2 10 M2 11 M2 12 M2 13 M2 14 M2 15 M2 16 M2 17 M2 18 M2 19 FIGURE 2 NAME HEATER HOLDER OF HEATER SHAFT WIRE WAY CYLINDER BOARD OF HEATER CONNECTION BOARD SILICA GEL SLOT BOARD 1 P TYPE BEARING PEDESTAL SWING PERCH CROSSBEAM 2 RADIATO
16. essure The sealing head will remain down for the duration of the time set on the seal timer D The operator may then load the next package onto the product tray thus speeding up the sealing operation Alpha pack Packing Enterprise Pageis 38 AP1622A L Sealer Service Manual TROUBLE SHOOTING CHART The following trouble shooting chart is provided to aid in determining the source of any operation difficulties which may develop In performing the tests and checks which follow carefully inspect for any loose components broken or loose wires poor electrical connections etc While testing the various switches controls relays transformers etc For checking electrical problems use a voltage meter Note While trouble shooting use caution to avoid danger of electrical shock When power is not required for checking for the presence or value of voltages used Always have it disconnected Refer to components placement sheet and electrical schematic diagrams to assist in all trouble shooting efforts Problem NO ELEMENT HEAT Procedure 1 Check that the sealer is plugged in and that power is present at the socket 2 Check element pulse switch adjustment Also press switch by hand if no click is heard replace it 3 Check Breaker BS3 4 Check to see if KMI is pulling in and voltage is present at coil 5 Check circuit continuity through normally closed switch contact of timer 2 KT2 needs to be set abo
17. g pads 26 Alpha pack Packing Enterprise Page2738 AP1622A L Sealer Service Manual must always be maintained for proper sealing uniformity and to prevent element hot spots and premature burnout This adjustment should be checked periodically and should always be checked when sealing gaps occur Proceed as follows l Disconnect the sealer s power pug from the power source Loosen all five bolts on lower pads just enough to maintain a moderate sliding pressure With sealing head resting on lower pads make sure there are no air gaps then tighten the five bolts on the lower pad Adjust magnets see below for adjustment of magnets At the rear of the machine making sure head cylinder is straight from front to back firmly grasp air cylinder bracket and pull full length of cylinder and tighten down set screws Cycling head up and down adjust set screw for proper head speed and cushion ELEMENT PULSE SWITCH ADJUSYMENT The sealing cycle should not begin until the sealing head is within 1 4 or less of the film to be sealed If the magnets energize before the head is within 1 4 of the film loosen the lock nut and turn the screw located at the rear end of the side seal bar up slightly counterclockwise when viewed from above The correct adjustment has been obtained when the magnets energize just as the seal bar comes into contact with lower pads 27 Alpha pack Packing Enterprise Pagezs 38 AP1622A
18. gular maintenance procedures or has been serviced by someone other than a duly authorized factory representative without the express written consent of us This warranty is in lien of all other warranties expressed or implied including but not limited to warranties of merchantability and fitness for a particular purpose non infringement or any other matter We shall have no liability to any person for direct indirect incidental or consequential damages or delay resulting from any defect negligence or tort and customer hereby waives for itself any and all claims for punitive damages and all claims of negligence of strict liability or both In no event shall our 6 Alpha pack Packing Enterprise Page7 38 AP1622A L Sealer Service Manual liability exceed the purchase price of the product which was actually paid We reserves the right to make changes additions or improvements to our products with no obligation to make such changes in any previously shipped product covered by this warranty We shall not be held liable for any damages arising out of or in connection with the operation of the equipment should customer or its agent fail to maintain equipment in safe operating condition This warranty shall become unenforceable if and to the extent the customer or its agents remove disconnect or otherwise render useless any safety device and or parts designed or affixed by us or fails to maintain and service equipment in a manner as advised
19. he wire lies properly in the bead groove the entire length of the bar If not pulse the machine With the head in the up position Do this several times to stretch the wire then reset wire temperature for making bags IMPORTANT After replacing sealing wire be sure to adjust the setting of the element compensator TAPE REPLACEMENT The item most subject to wear on the sealer is the Teflon tape used to cover the silicone sponge rubber on the sealing bar This tape should never be 25 Alpha pack Packing Enterprise Pagez6 38 AP1622A L Sealer Service Manual permitted to burn through To replace tape proceed as follows 1 Strip off old tape 2 Cut off proper length of new Teflon peel off backing and press new tape into position SILICONE RUBBER SEALING PAD REPLACEMENT Occasionally it will be necessary to replace the silicone rubber sealing pads This should be done if the following effect are noted Gaps in the seal Weak seals Improper film cut off Excessive sealing pressure required To replace rubber proceed as follows 1 Seal pads are designed with a channel for easy replacement Pull silicone rubber out of the channel 2 Replace with new silicone rubber Press rubber back into channel 3 Put 3 4 10 mil Teflon tape on top of rubber 4 Put 1 2 10 mil teflon tape over the 3 4 tape SEALING PAD PRESSURE ADJUSTMENT FOR HEAD RETURN CYLINDER Uniform pressure between the sealing elements and the sealin
20. in place Hold motor while removing these bolts so the motor does not drop 6 Follow steps 2 5 in the opposite order to reinstall new motor against the conveyor frame and tighten set screws FRONT AND SIDE SEAL BAR A Beads in Front Bar 1 Install standard V Bead 2 certain that the beads are flush with the end of the seal bar If the end bead is extending out of the bar use side cutters to cut the bead down to size B Beads in Side Bar 1 Install corner bead 2 On either side of the comer bead install a beveled bead For the remaining length of the bar follow steps A 1 and A 2 3 Place a screw in the hole at the end of the bar to hold the beads in place C Setscrews Hold seal wire l Place set screws in threaded holes of seal bars Make sure set screw holds seal wire tightly in place 2 Place knurled nut on screw Make sure nut holds seal wire tightly in place For front and side wire 29 Alpha pack Packing Enterprise AP1622A L Sealer Service Manual D Compensator and springs in side bar 1 2 Use one 23 8 spring lightly greased and place in hole first Install compensator with 275 lightly greased Slide compensator into side seal bar While holding compensator guide screw can be installed Insert insulated guide screw PLACING FRONT AND SIDE SEAL BARS Du ve o 7 Warning 8 9 10 11 12 Turn power switch to OFF Remove wire L63 fr
21. o much film tension make sure film is relaxed prior to sealing 3 Check sealing element wire to see if cleaning or replacement is necessary 4 Burned Teflon tapes 1 2 or 3 4 replace 5 VVavy silicone rubber sealing pad Replace See instructions on page 22 6 Seal pad pressure incorrect See pages 22 and 23 7 Hold down pressure uneven or incorrect on magnets 1 Check for 220 Volts nominal to primary of transformer TFl 20 Alpha pack Packing Enterprise Page21 38 AP1622A L Sealer Service Manual ON MAGNET SEALERS SEALING HEAD WILL NOT STAYDOWN SEALER OPERATES NORMALLY OTHERWISE CONVEYOR DO NOT RUN 2 If voltage is present to primary winding of transformer Check for 30 nominal volts AC output from the wire number LM and N61 on secondary of the transformer 3 Check for 24 nominal volts DC output from positive and negative wire numbers 28 amp 29 on terminals of rectifier If no DC voltage replace rectifier 4 Check wire circuit continuity to hold down magnets from rectifier 5 Check for circuit continuity through windings of hold magnets 6 Check seal timer KT2 setting make sure it is not set on zero Also check to see if timer is burned of damaged 1 Check Breaker BS2 2 Check conveyor timer make sure timer is not set on zero 3 Check conveyor belt and make sure it is not too tight 4 Check that conveyor motor sprocket set screws are not loose on sh
22. om side bar compensator Remove wire L64 from front bar compensator Remove wire L62 from temperature control bracket Remove temperature control bracket Note Bracket is held in place with two screws Also do not lose the insulators Compress front bar compensator all the way in using your thumb and hold Remove compensator guide screw Remove compensator slowly applying tension as compensator is spring loaded Remove bolt holding front seal bar to the outfeed bar Remove bolts holding side seal bars to casting Remove seal head from entrance casting and outfeed bar Remove the side bar compensator following steps 6 amp 7 Remove upper magnet holder on side bar 30 Alpha pack Packing Enterprise Page31 38 AP1622A L Sealer Service Manual 13 Remove handle INSTALLATION OF SEAL BAR COMPENSATORS AND TEMPERATURE CONTROL BRACKET Lightly grease two compensator springs and put on each seal bar Insert compensator and compress in all the way Install compensator guide screw assemblies On the front bar install the temperature adjustment bracket Important The temperature adjusting bracket must be insulated from the NO 0 N QN tA casting to work properly Install new seal wire and reset temperature adjustment screw assembly Reconnect wires to seal head assembly Install upper magnet holder on side bar Installing handle and tighten set screws on each end Double check all work done befor
23. ve zero 0 18 Alpha pack Packing Enterprise Page19 38 AP1622A L Sealer Service Manual on time dial 6 Check for operation of contactor KM3 amp 4 7 Check circuit continuity through operated contact of contactor KM3 amp KMA If required clean or replace contact points 8 Check element compensator setting You should always have a gap of at least 1 8 to 1 4 between the compensator and the adjustment screw If the compensator screw is touching the compensator the seal wire will not heat up 9 Check for voltage present at both secondaries of transformer TF1 as per values shown in the voltage specifications 10 Check for continuity from TF1 through wiring the sealing elements 11 Check for continuity through sealing elements and replace if open circuit 12 Check main power switch to determine if damaged or broken SHORT ELEMENT LINE 1 Check element compensator setting See element compensator on page 23 19 Alpha pack Packing Enterprise Pagez0 38 AP1622A L Sealer Service Manual WEAK SEALS AND OR POOR FILM CUT OFF MAGNETIC HOLD DOWN MAGNETS NOT OPERATING 2 Improper element installation 3 Weak spring at element termination left end of front element rear end of side element If questionable replace 4 Be certain that heat sink has firm flat contact with element If deformed replace or straighten heat sink 1 Improper setting of element compensator 2 Improper operating technique To
24. vent over run and or slack From time to time the operator shoulder evaluate its setting to ensure proper tension PRODUCT TRAY The product tray is an adjustable metal platform used to separate film and to insert product between top and bottom layers of film The tray is adjustable to achieve proper depth equal to the depth of the package thereby allowing product to be placed exactly in the center fold of the film each time Alpha pack Packing Enterprise Page1738 AP1622A L Sealer Service Manual OPERATION AP 1622A SEALER After completion of film threading as described on page 13 plug the sealer s cord into the power source Because of the importance of the adjustment of the element compensator to the successful operation of the sealer the follovving explanation of its operation is given PRODUCTION OPERATION OF THE SEALER After setting the element compensator for the film type in use proceed as follows A With film threaded See instructions for mounting film using right hand slide product into the upper left hand corner of the film i e corner formed by folded rear edge of film and previously sealed left edge of film B Still using left hand move package and film into lower right corner of sealing area and then slightly back and away from the comer formed by the sealing bars This will allow some slack film between the package and the sealing bars C Press sealing handle down IMMEDIATELY release pr
25. w the equipment will not function properly Finding the proper location is a most important function of the initial set up One must take several factors into consideration 1 Adequate power source 2 Relationship to source of product 3 Relationship to tunnel and any conveyors necessary to remove finished product 4 Convenience of operator If there is any doubt get qualified assistance to do the initial installation Do not take any chances Do not attempt to install adjust or operate this machine without first reading the contents of this manual Although the design of the equipment 12 Alpha pack Packing Enterprise Page1338 AP1622A L Sealer Service Manual incorporates safeguards to protect operating and maintenance personnel care should be used in operating adjusting and servicing FILM THREADING DLAGRAM Pin Perforator A VVind Rollers Alpha pack Packing Enterprise Page14 38 AP1622A L Sealer Service Manual SEQUENCE OF OPERATION OPERATING PANEL POWER SEALING Product is placed on the film separator tray product tray functions as a means to separate the film allowing placement of product between upper and lower portions of the film C Move product into seal head area by pushing the product to the left D Manually pull the seal head down As the seal head meets the lower seal pad the machine automatically activates the seal
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