Graco 332090A User's Manual
Contents
1. 4 8 Recommended Spare Parts 8 255 9 GENERAL INFORMATION DESCRIPTION The Model 1095 10 Positive Displacing Metering Unit provides precise metering and volumetric consistency over a wide range of viscosities extending from viscous materials to ultrahigh silicones and epoxies with material inlet pressures up to a maximum of 1200 psi The Model 1095 10 ships complete with the following e Model 1095 10 Positive Displacing Metering Unit e Operating Manual SAFETY INFORMATION Only properly trained employees with a knowledge of the operations and safety warnings as set forth in this manual should use this product Read all applicable manuals completely before operating Toxicity and flammability hazards depend upon the product being dispensed by this unit and the user should take appropriate safety precautions as shown on the MSDS of the product Always wear safety glasses page 1 DESCRIPTION OF OPERATION The 1095 10 Positive displacing Metering Unit s sequencing is as follows In the normal ready state The material enters the unit through the material inlet port located on the bottom of the body stamped IN to fill the spool and dispense c2. Check the reservoir pressure as it may be too low for the type of material being dispensed and or the cycle time may be too fast Cycle time is a function of 1 adequate air supply pressure 2 the duration of supply signal and 3 the stroke speed To adjust follow the directions found in the Operation Adjustments section of this manual SLOW OR SLUGGISH CYCLE This may be due to inadequate lubrication of the piston walls Apply a very thin film of a compatible lubricant to the outside diameter surfaces of the pistons and the U seals and reassemble This should restore smooth and consistent operation Another cause may be misalignment between the Metering Rod and the Metering Body Loosen the two retaining nuts that hold the body to the mounting bracket assembly Power the metering rod to its full down position and tighten the Retaining Nuts The unit is now realigned ON OFF DISPENSE VALVE DROOLS OR OOZES This can result from air trapped in the material being dispensed wear on the valve seat or a worn seal in the 1095 10 as well as the ON OFF valve or the ON OFF Valve is out of sequence Check the sequence and then refer to the Dispense Head Manual MODEL 1095 RECOMMENDED SPARE PARTS Note These parts are routine supply items or wear parts not covered by warranty for normal wear SEAL KIT 1095 see assembly drawing for part number DISPENSE SLEEVE see assembly drawing for part number METERING ROD see assembly drawing for part nu
3. Position the left Seal Cup Plate 9 with the oil cup upwards and slide it over the Spool part of the Spool Sleeve Assembly 6 with the counterbore for the Seal Retainer Washer 11 facing out Slide the Seal Retainer Washer 11 over the Spool and install two Screws 19 Repeat steps 3 4 and 5 for the right side Seal Plate Cups Mount the Valve End Caps to the Seal Plate Cups 7 11 12 13 14 15 16 Install a lubricated U cup Seal 17 onto the left Spool Shift Piston 16 with lip side out as shown Lubricate the bore in the End Cap 5 Slide the piston into the left End Cap 5 tucking the lip of the seal into the End Cap carefully Install the Piston End Cap onto the left Oil Cup Seal Plate 9 using four Screws 14 Tighten the screws in a cross pattern gradually to prevent binding due to misalignment like you would tighten lug nuts on a Car tire Push the Spool into the left side until it contacts the piston Repeat steps 7 and 8 for the right side Install the Dispense Sleeve Top Cap and Metering Rod Lubricate the dispense sleeve bore in the Main Body 4 Insert the Dispense Sleeve 3 into the Main Body 4 Check for threads that may be in the inside of the sleeve due to tapping during removal and make sure these are at the top Install the lubricated O ring 21 around the Dispense Sleeve 3 Install the lubricated Posipak Seal 12 into the Top Cap 2 Be sure to tuck the lip of the Posipak into i
4. 555 Be el WY R ag 9 7 222222 55 N 4 SEAL RETAINER WASHER TOP CAP POSIPAK SEAL DISPENSE SLEEVE MAIN BODY END CAP PLUG SOCKET 1 8 SPOOL SLEEVE ASSEMBLY SPOOL SHIFT PISTON POSIPAK SEAL METERING ROD U CUP SEAL OIL CUP SEAL PLATE SCREW SHC 10 32 X 1 1 4 POSIPAK SEAL PERIODIC MAINTENANCE ASSEMBLY METERING UNIT Refer to the Metering Unit Illustration on page 12 and the drawings in the back of this manual for your exact model 1 Install four lubricated O rings 18 onto the Spool Sleeve Assembly 6 Lubricate the Spool O D and Sleeve O D too 2 Insert the Spool Sleeve Assembly 6 carefully into the Main Body 4 rocking it to ease it into place Align the bottom holes of the Sleeve piece of the Spool Sleeve 6 with the inlet outlet holes of the Main Body 4 Top Hole Bottom Holes outlet inlet Page 6 PERIODIC MAINTENANCE ASSEMBLY METERING UNIT 6 Install the Seal Plate Cups on the Main Body Install a lubricated O ring 20 on the left side of the Main Body 4 next to the sleeve part of the Spool Sleeve Assembly 6 Install lubricated Posipak Seals 7 and 10 in the left Seal Plate Cup 9 so that the O ring side of both Posipaks will be facing the Main Body 4 Be sure to tuck the lip of the Posipak into its cavity to avoid tearing it
5. Instructions 7 332090A Dispensit 1095 Dispense Valve Read all warnings and instructions in this manual Important Safety Instructions Save these instructions PROVEN QUALITY LEADING TECHNOLOGY MODEL 1095 10 POSITIVE DISPLACING METERING UNIT OPERATING AND MAINTENANCE MANUAL Table of Contents 225 lt 1 DESCRIP THON 1 lt 1 DESCRIPTION OF 2 2 2 page 2 aulelei nami De 2 DISPENSE HEAD seis ie es page 2 AIR CONTROLLER 2 chat taht heute ee ee tee ee recat ace cts teal page 2 DRY SYSTEM CHECKOUT ic 25 3 WET SYSTEM CHECKOUT 3 2 lt 3 Periodic MaintenanCes 2 isis
6. avities The spool shifts to the dispense position internally blocking the material inlet port and opening the dispense outlet The dispense cycle begins The metering rod cycles pushing material from the dispense cavity through the outlet port stamped OUT to ON OFF dispense valve not part of the 1095 10 To refill the dispense cavity the spool shifts again blocking the material outlet port opening the material inlet port At the same time the metering rod rises and the cavity fills The system is now in the normal ready state SETUP PROCEDURE MOUNTING Mount the 1095 10 base plate perpendicular to a smooth surface using the mounting holes provided DISPENSE HEAD Connect the 1095 10 to a high pressure ON OFF dispense head using a flexible hose having a very low volumetric expansion ratio within the specified pressure ranges Note We recommend Stainless Steel braided PTFE line AIR CONTROLLER Operation of the 1095 10 Positive Displacing Metering Unit requires a controller that can provide the following A minimum of 0 5 SCFM 2 3 cm of dry unlubricated air at a minimum pressure of 70 psi 483 kPa Time delay capability to allow the unit to cycle page 2 DRY SYSTEM CHECKOUT This is an initial checkout to decide the completion of the system setup Conduct the dry checkout without material in the system Attach the pneumatic pressure lines from the supply to the push in connectors on the end cap
7. m patents Original Instructions This manual contains English MM 332090 Graco Headquarters Minneapolis International Offices Belgium China Japan Korea GRACO INC AND SUBSIDIARIES P O BOX 1441 MINNEAPOLIS MN 55440 1441 USA Copyright 2010 Graco Inc All Graco manufacturing locations are registered to ISO 9001 www graco com
8. mber SPOOL SLEEVE ASSEMBLY see assembly drawing for part number KRYTOX 203GPL ASSEMBLY LUBRICANT 84 0200 K3 11 Page 8 Graco Standard Warranty Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale to the original purchaser for use With the exception of any special extended or limited warranty published by Graco Graco will for a period of twelve months from the date of sale repair or replace any part of the equipment determined by Graco to be defective This warranty applies only when the equipment is installed operated and maintained in accordance with Graco s written recommendations This warranty does not cover and Graco shall not be liable for general wear and tear or any malfunction damage or wear caused by faulty installation misapplication abrasion corrosion inadequate or improper maintenance negligence accident tampering or substitution of non Graco component parts Nor shall Graco be liable for malfunction damage or wear caused by the incompatibility of Graco equipment with structures accessories equipment or materials not supplied by Graco or the improper design manufacture installation operation or maintenance of structures accessories equipment or materials not supplied by Graco This warranty is conditioned upon the prepaid return of the equipment claimed to be defective t
9. o an authorized Graco distributor for verification of the claimed defect If the claimed defect is verified Graco will repair or replace free of charge any defective parts The equipment will be returned to the original purchaser transportation prepaid If inspection of the equipment does not disclose any defect in material or workmanship repairs will be made at a reasonable charge which charges may include the costs of parts labor and transportation THIS WARRANTY IS EXCLUSIVE AND IS IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING BUT NOT LIMITED TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE Graco s sole obligation and buyer s sole remedy for any breach of warranty shall be as set forth above The buyer agrees that no other remedy including but not limited to incidental or consequential damages for lost profits lost sales injury to person or property or any other incidental or consequential loss shall be available Any action for breach of warranty must be brought within two 2 years of the date of sale GRACO MAKES NO WARRANTY AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE IN CONNECTION WITH ACCESSORIES EQUIPMENT MATERIALS OR COMPONENTS SOLD BUT NOT MANUFACTURED BY GRACO These items sold but not manufactured by Graco such as electric motors switches hose etc are subject to the warranty if any of their manufacturer Graco will pr
10. ovide purchaser with reasonable assistance in making any claim for breach of these warranties In no event will Graco be liable for indirect incidental special or consequential damages resulting from Graco supplying equipment hereunder or the furnishing performance or use of any products or other goods sold hereto whether due to a breach of contract breach of warranty the negligence of Graco or otherwise FOR GRACO CANADA CUSTOMERS The Parties acknowledge that they have required that the present document as well as all documents notices and legal proceedings entered into given or instituted pursuant hereto or relating directly or indirectly hereto be drawn up in English Les parties reconnaissent avoir convenu que la r daction du pr sente document sera en Anglais ainsi que tous documents avis et proc dures judiciaires ex cut s donn s ou intent s a la suite de ou en rapport directement ou indirectement avec les proc dures concern es Graco Information For the latest information about Graco products visit www graco com TO PLACE AN ORDER contact your Graco distributor or call to identify the nearest distributor Phone 612 623 6921 or Toll Free 1 800 746 1334 Fax 330 966 3006 All written and visual data contained in this document reflects the latest product information available at the time of publication Graco reserves the right to make changes at any time without notice For patent information see www graco co
11. s Turn on the electric and air supply Set the air pressure to 70 psi 48 3 kPa on the system pressure gauge Momentarily activate the controllers dispense cycling control switch The 1095 10 Positive Displacing Metering Unit should go through a complete cycle and cause a slight fluctuation in the system pressure gauge When this happens the system installation is correct WET SYSTEM CHECKOUT MATERIAL LOADING Attach the material line from the reservoir to the material inlet port stamped IN on the bottom of the 1095 10 Positive Displacing Metering Unit Attach the regulated air line to the 1055 10 Positive Displacing Metering Unit and set the air pressure control to 70 psi Make certain that all screws air connections and the reservoir connections are tight before applying operating or reservoir air pressure Do not exceed 100 psi 690 kPa pressure on the operating system Do not exceed 1 200 psi 8 274 kPa material pressure Cycle the 1095 10 Positive Displacing Metering Unit several times until a smooth material flow emerges page 3 PERIODIC MAINTENANCE Refer to the 1095 Metering Unit Illustration on the next page Als 2 3 4 At the top of the valve remove the two Screws 1 and remove the Top Cap 2 Remove the Metering Rod 8 if it was not previously removed Remove the Posipak Seal 7 from the Top Cap 2 Remove the O ring 21 Remove the four Screws 14 and the End Cap 5 on each side of the
12. ts cavity to avoid tearing it Insert the Metering Rod 8 through the Top Cap 2 and Posipak Seal 12 carefully Using the projecting Metering Rod 8 as a guide into the Dispense Sleeve 3 position the Top Cap 2 on the Main Body 4 Install the two Screws 1 through the Top Cap 2 and into the Main Body 4 Tighten the screws in a cross pattern gradually to prevent binding due to misalignment like you would tighten lug nuts on a Car tire Page 7 TROUBLESHOOTING Review the symptoms below for operating difficulties With each problem there are one or more possible causes to investigate NOTHING HAPPENS If absolutely nothing happens when trying to cycle the 1095 10 check the electric and pneumatic power VALVE CYCLES NOTHING DISPENSED First make sure the ON OFF Dispense Valve is sequencing properly with the metering unit Try to purge the dispense head this should fix most situations Then if nothing dispenses check to see that there is enough air pressure to the reservoir Perhaps material has set up in the reservoir or supply hoses examine and clear or replace as necessary Refer to Wet Checkout and Cleanup sections of the appropriate manuals IRREGULAR VOLUME DISPENSED Faulty material will cause irregular dispensing The material must be a smooth homogeneous mixture without any air trapped in it A second cause could possibly be that the material is not filling the metering rod chamber fully and in time
13. valve Remove the two Spool Shift Pistons 16 from the End Caps 5 They should come out easily but if not use low pressure less than 2 psi or 1 bar air at the Push In Connector 13 to move them Remove the U cup seals 17 from the Spool Shift Pistons 16 Remove the Dispense Sleeve 3 from the Main Body 4 If the sleeve is plastic and does not slide out readily then you can thread an appropriately sized tap into it a turn or two and pull it out A few turns of threads the plastic will do no harm but wear or cracking will mean that you must replace it Keep track of which end of the sleeve you tapped into as you will want it at the top again upon reassembly Remove the Screws 19 that hold the Oil Cup Seal Plates 9 to each side of the Main Body 4 The Seal Retainer Washers 11 and the Posipak Seals 10 and 7 will come off with the Oil Cup Seal Plates Remove those seals and the O rings 20 Push the Spool Sleeve Assembly 6 out with a finger If it does not slide out tap it gently using a wood or plastic dowel A worn spool and sleeve assembly must be replaced with a new matched assembly If you are rebuilding multiple valves be sure to keep the spools and sleeves matched Remove the O rings 18 from the Spool Sleeve Assembly 6 Check the contents of the seal kit versus what you removed then discard the old items Page 4 MODEL 1095 METERING UNIT ILLUSTRATION SCREW SHC 10 32 X 7 8 9 a CHAE FFP SHS
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