AC+ DRY BLENDER SERVICE MANUAL
Contents
1. Clamp the casing to the back plate and tighten clamp Ampco Pumps Company 18 5 To locate the drive collar position slide the collar and seal assembly towards the back plate until the o ring and carbon seal are pushed tight against the back plate 6 Slide the drive collar back from the back plate by 1 32 0 79mm Tighten the set screws to secure the drive in this location 7 Install the seal spring cup seal o ring and carbon onto the shaft For DG seals set the DG insert and gaskets into the gland ring and screw the gland ring to the back plate NOTE Extra care should be taken when assembling AC Blenders with type DG seals Incorrect stub shaft settings will allow the impeller hub to contact the inboard face of the stationary seal seat Interference of the impeller hub and seal seat face will cause wear of impeller hub and damage to the inboard or secondary seal face of the clamped in seat Visual inspection is recommended after installation of the impeller and before installation of the casing to ensure clearance between the impeller hub and seal face If no clearance is visible the blender should be disassembled and the stub shaft moved forward to provide at least 1 32 79mm clearance between the impeller hub and seal seat face Reset seal drive collar if necessary If the drive collar is properly positioned and seal components are properly installed the shaft should rotate freely by hand If excessive effort is required2. Models AC 2116 and AC 2116 System 1 Screw the adjustable legs into the base On the 2116 System use bolts to attach the base to the dolly 2 Mount the six spacers and the ring adapter to the base Place the base on the top of the motor Mount the motor 3 Loosely set the four motor mounting screws Enough movement must be allowed to allow alignment of the motor shaft in the back plate Slide the stub shaft down and over the motor shaft 5 Place the casing gasket on the back plate Slide the back plate over the stub shaft Place the impeller on the shaft There should be approximately 1 16 clearance between the back plate and impeller The caps crews on the shaft collar may now be tightened securely 7 Remove the impeller and check the position of the stub shaft If the stub shaft is not centered in the back plate move the motor until the stub shaft is centered Securely tighten the motor mount screws 8 Install the balanced seal Sealing of the process fluid along the shaft is accomplished by action of the process pressure on an o ring seal installed in a groove in the carbon seal The same action pressurizes the o ring groove and augments the spring tension in keeping a tight joint at the sealing faces The width of the seal face controls the balancing of the seal This type of seal should be replaced when the clearance between the carbon seal face and the back plate is less then 1 32 0 79mm or when leakage is noted See instruc
3. Ampco Pumps Compan SAFETY Read and understand the instructions in this manual before installing operating or servicing this equipment Failure to learn the correct procedures for servicing the Dry Blender by studying this manual could result in equipment failure or even personal injury Ampco Pumps Company advises users of our equipment to follow current Industrial Safety Standards At the least the follovving should be included e Occupational Safety and Health Administration OSHA Title 29 of CFR Section 1920 212 e General Requirements for all Machines National Fire Protection Association ANSI NFPA 79 e Electrical Standards for Industrial Machinery National Electrical Code ANSI NFPA 79 ANSI NFPA 70 National Electrical Code ANSI NFPA ZOE Electrical Safety Requirement for Employee Workplaces e American National Standards Institute Section B11 Servicing electrically charged equipment can be dangerous Unintended actuation of equipment or shock or burn may result in severe injury or death It is recommended that industrial equipment be disconnected or locked out from the power source and stored energy if present be released Refer to National Fire Protection Association Standards and OSHA rules for the Control of Hazardous Energy Sources and the Electrical Safety Related Work Practices Check for procedural requirements for lockout tagout and personnel qualifications and training Interconnected devices should be checke
4. SC1103A SS D 216D 11 316 Backplate D OG sp216G 11 316L Stuffing Box 216E 83B 316 Gasket Thick SP216G 80 12AG ae Je Backplate E 216E 11B 316 D10 Gasket Thin SP216G 80 12G LWA1300 SS 1 4 e ALAS point 3 z E Spring D 216D 80 4 E4 1 Drive Collar D SP216D 23P S ME US E5 Spring E 216E 80 4A 9 7 t As Hi d H Y F A d Z X Lee V L e y pr 4 B E E 7 d al e ES Ty Es x A F Pa 7 F F Fi A Ze V X NM 5 3 SS L ilt ES 7 d P pr E fy 4 P 4 d Pi d P i j f 7 E A lt E El K Pi F d F gt R C W AS Y hl ae pm ran vansar i A ave sees a YAA L E j H H E d S E 2 GL AA d d TE vs EE fi S i d SE S r Ge d P F vi d d y z P f d 3 A d E P E P A d y Pi 7 Fi 3 P P e y A A Ba 7 7 A J f P p d e Pi s y Es A 8 e Fi E E E SEAL DG SEAL D SEAL Ampco Pumps Compan 24 Parts List AC 3218 O Hopper bewseeaTG 1 23 HexCapScrem emm 6 a Buttery vave BstoresoooeG 1 26 Support Column mme 6 e eme mmm 2 90 Bearing eene 2 e Inet Adapter DEXG2I8400W 1 32 BlenderBase Dez 17 a Pumpcasing sa2epBoice 1 ss Motor Optional In Pio Screen paa 1 ss SocketCap Screw gas 6 is impeter Seze capp oret 1 se HexNuts Gxs500000 6 O EE ES a eee
5. al EE MEEL T ia Adapter Casing Clamp S328 76AR S 1 44 FlatWasher goes 6 o Impelirkey aaae nn 1 45 Lockwasher ge 6 CTE OOO el Guad paea a DS LIE CAER SIE ONE I MES D 328D 11 316 ene aa e eas l area IT Do SealSeat __sP32s0 80 1180 1 Eo Follower Dexeao772 1 Ampco Pumps Compan D SEAL DG SEAL E SEAL Ampco Pumps Compan 26 Parts List AC 4329 a ecem mme as HexCapScrem Gxssoa110 6 5 DifuseriSucton Tube DBx4920 4000 26 Support Goumn DBXeri2462 6 e Clamp men 2 28 RetainingiSnap Ring mg 1 saans Dexaa2o soow 1 01 Bearing Frame DBX007752 1 o FumpCasing ennan ne s 32 BlenderBase eens 1 Screen papas 1 99 Motor opion 1 SR a 1 11 12 Impeller Nut Gasket O 13 14 5 16 7 wesch sch mk RO Sheave Dodge 1 455621 EA Impeller S4410 02DB 316L 37 Sheave Dodge 2 455627 Casing Gasket SP4410 90A U Hex Nuts GX5503000 6 1 Impeller Back Gasket S4410 25B U Thick Flat VVasher GX10610500 D DBX8207082 DG DBX8207331 Deflector Slinger Adapter Cap Screw 1 40 GX5079700 4 E DBX8207702 20 Impelerkey manners 1 44 FlatWasher esans 6 _ ar Subshat 4 10 amp 2508 06 1 45 LockWasher xssoao10 6 plage I 2 RS Sg SES SS SS Backplate D De caserma mamm pl searsea mens 10 Gasket Thin 11 Gland Ring D
6. to rotate the shaft check to be sure that all components are properly installed and the drive collar is properly installed Ampco Pumps Compan TYPE E WATER COOLED BALANCED DOUBLE SEAL DISCONNECT ELECTRICAL POWER SOURCE 1 Install the back plate gasket and casing 2 Secure the casing to the back plate with the clamp and gasket 3 To mark the location of the drive collar scribe a line on the shaft 4 Remove the casing clamp casing and back plate 5 Place the follower one of the carbon seals one seal o ring one cup and the drive collar on the shaft 6 Set the drive collar to the scribe mark shown in Figure 3 and secure it to the shaft by tightening the set screws Figure 3 E Seals 7 Install the remaining seal components including the seal spring cup seal o ring and carbon onto the shaft Take care that the slot in the seal cup is aligned with the pin on the drive collar Gentle finger pressure will overcome o ring resistance on the shaft 8 Place the stuffing box and back plate assembly over the stub shaft and the seal components 9 Next set the follower onto the stuffing box and secure it by tightening the four screws 10 Assemble the seal guard and tighten the nut Ampco Pumps Company 20 11 Attach the water inlet and outlet to the stuffing box After setting the drive collar and assembly the seal return the Reassembly section for final steps TROUBLESHOOTING The AC Dry Blender r
7. 12 Mounting Bolt D13 Lock Washer D 8 E 4410D 11 316 DG 4410G 11 316 1 1 1 1 4 LWA 1300 SS 4 Backplate E 4410E 11 316 3 E Stuffing Box 4410E 83B 316 E I E Optional Seals i gm mi T 0 0 D12 OE ee 2 F g 9 d me F P A sg Pi A P F U d P 4 P P lt lt ay SE i L a ES j cf 6 CO o R 3 he A e g DG SEAL E SEAL 27
8. Ampco Pumps Company T ew e ka L is La L ES OO eq ES sw AC DRY BLENDER SERVICE MANUAL READ AND STUDY THIS MANUAL TO ENSURE YOU UNDERSTAND THE CORRECT PROCEDURES BEFORE YOU INSTALL OPERATE OR SERVICE THE EQUIPMENT MODELS 2116 2116 System 3218 4329 Contents This service manual includes operation instructions installation guidelines directions and cleaning and repair instructions for Ampco Pumps Company s AC 2116 AC 2116 System and AC 4329 Dry Blender models Trouble shooting guidelines are also included in this manual Failure to learn the correct procedures for servicing the Dry Blender by studying this manual could result in equipment failure or even personal injury Ampco Pumps Company 1 Table of Contents SAPETI AS 2 3 WARRANTY SHIPPING DAMAGE AND LOSS ee ees esse ee ees ee se ee ee ee ee ee ee ee ee ee ee ee ee ge ee ee ee ee 4 Waran CLOUD act 4 INTRODUCTION AON E MET eeh 5 INSTALLATION GUIDELINES Us AE OE EO RE EL EE EE OE N NE OE N RE EE EE EN 5 Location and InstallatiON Ee ee Ge ee ee ee ee Ge ee Ge ee 5 6 MAINTENANCE LENIN a 7 8 RICH O EE OE EE RE EE EE EE eciesetemerenas 9 13 REASSEMBL EE lic AD Ee ed ua 14 16 SETTING THE DRIVE LOLLAR ssssssssseessseesseersseerseseresseerreerrssesorrreorersseerreorreseerreserrssoerreseerseeeree 17 SEAL REPLACEMENT a EE 17 19 TROUBLESHOOTING POSSIBLE PROBLEMS AND CAUSES iaa 20 21 PARTS LIST AND BREAKDOWN VIEW 22 28
9. Company 11 1 Carefully remove the back plate and inspect the back plate the gasket and the casing for scratches nicks or wear 2 For models with the DG seal remove four screws from the back plate Inspect the DG seal insert gland ring and gaskets Replace parts showing any wear or damage Caution should be used in handling the back plate Avoid damage to the back plate surface around the carbon seal opening 3 Remove the carbon seal cup spring and o ring seal from the stub shaft Remove the drive collar from the shaft For E Seal replacement reassembly see page 17 Disconnect the inlet and outlet for the water to the stuffing Four screws hold the follower to the stuffing box Remove all four screws Carefully slide the back plate assembly with the stuffing box off the shaft a Oe From the shaft remove the inboard carbon seal the cup the seal spring and the seal o ring 9 Loosen the two set screws and remove the drive collar 10 From the stub shaft remove the carbon seal cup seal o ring and the follower Please note special attention should be made to drive collar replacement as incorrect setting on the DG seal may allow for excessive wear on the seal 10 11 12 13 Ambco Pumps Compan DISASSEMBLY Continued Stub Shaft and Motor Removal Models AC 2116 and AC 2116 System To remove the drive motor from the AC 2116 or AC 2116 System place a block suitable in size under the motor Turn the
10. NDERS WITH D OR DG SEALS To replace the seal assemble the spring seal cup o ring seal and carbon seal Install as a unit taking care that the slot in the seal cup is aligned with the pin on the drive collar Gentle finger pressure will overcome o ring resistance on the shaft When the carbon seal is replaced the location of the drive collar should be checked and relocated if necessary Use one of the two following methods Set the Drive Collar by Measurement 1 4 Install the back plate gasket and casing R Install and tighten the casing clamp 3 32 2 5mm TA Create mark Behind the back plate mark the correct location of the drive collar by scribing a line on the shaft See Figures 1 3 Where A is 11 32 IN 0 87mm Remove the casing clamp casing and back plate Figure 1 D Seals Place the drive collar on the shaft setting it in relation to the scribe mark and tighten set screws Install the seal spring cup seal o ring and carbon onto the shaft Set the Drive Collar by Position Figure 2 DG Seals Set the spring cup o ring seal and carbon seal on the drive collar Check that the spring does not rest on the tab that is spent back A portion of the spring is offset to provide clearance for this tab Care must be taken to ensure that the pin on the drive collar is in line with the slot on the cup Install the spring cup o ring and carbon as a unit onto the shaft Install the back plate and casing
11. adjustable legs until the motor rests on the block Remove the seal guard Remove the carbon seal cup spring and o ring from the stub shaft Loosen the set screvvs and remove the drive collar The deflector should be removed by lifting it straight up and off Use the appropriate wrench to remove the four nuts bolts and lock washers that secure the motor to the base The motor should now rest on the block Lift the base from the motor The stub shaft should remain attached to the motor Loosen the socket head cap screw in the shaft collar and slide the collar off Use a flat bar to pry beneath the stub shaft and remove it from the motor shaft Check the stub shaft for nicks or scratches that may cause o ring seal wear and leaking To remove the adapter ring and spacers set the base on its side and hold the adapter ring while removing the six socket head screws in the bottom of the base Remove the legs from the base Inspect all blender o rings for damage and replace as needed Ampco Pumps Compan 13 DISASSEMBLY Continued Models AC 3218 and AC 4329 10 11 12 13 14 Models AC 3218 and AC 4329 are operated by a pulley system located on the underside of the base To remove drive components the entire blender and base must be tipped on its side The motor end should be toward the floor The hopper valve inlet tubing casing impeller seal guard and seal components should all be removed before tipp
12. ct are removed Clean all the components with an all purpose powdered alkaline cleaner following manufacturer s recommendations Immediately rinse with lukewarm water until all of the cleaning agent has been removed Rinse with hot water Place components so they will drain and air dry Inspect o rings and replace if necessary Before reassembling spray gaskets with a sanitary lubricant If any damaged or worn parts are noticed during cleaning replace them before reassembling the unit Reverse the order of disassembly to reassemble the blender Ampco Pumps Company 9 REPAIR Normal repair on the AC Dry Blender usually includes the simple replacement of defective or worn parts There are few moving parts to the blender they include the control valve either a Butterfly valve or a ball valve the shafts impeller seal belt for 3218 and 4329 models and the motor shaft Refer to the manufacturer s recommendations for repair or replacement of the drive motor DISASSEMBLY Remove power before servicing to prevent Inlet and discharge piping must be disconnected unintended start of the blender from the blender before servicing To prevent malfunctions as a result of warn or broken parts it is recommended the blender be inspected periodically Following are procedures for disassembling the AC 2116 AC 3218 and the AC 4329 models Certain instructions are the same for all models but where there are differences the
13. d of the Tri Blender a Consult motor manufacturer b Consult motor manufacturer c Replace bearings d Remove casing and foreign matter inside Inspect for damage e Replace the screen with a larger screen that fits snugly inside the casing a Level blender b Replace impeller c Remove casing and foreign matter Inspect for damage a Replace o ring seal b Replace carbon seal c Replace spring d Replace gasket e Replace backplate f Tighten clamp Ampco Pumps Compan 22 Parts List AC 2116 DBH2116 2 TC Casing Gasket S216 90A U 2 Clamp 13MHHM200 EN Casing Clamp S216 75AR S 2 Butterfly Valve B5101E200CC C Diffuser Dry Feed DBX2116 200 Tube 2 5 Clamp 13MHHM250 Impeller Key S216 95C 316L Stub shaft C216E 18TP 06 Shaft Collar Screw GX5494026SS 1 Shaft Collar X18000014 S D GX5079700 Adapter Cap Screw DG SC1710H SS E SC1106E SS Seal Guard C216 18T 131 S Platform Base DBB 2116 180 2 5 Gasket 40MP U250 200D Inlet Adapter DBX2116 250W Pump Casing S316DB 01C El K 5 En S2116 91C 316L ER ER Qty Es ER reaa nasse sei 1 20 mao opa Ji 1 1 Impeller S216 02DB 316 EN O Ring Rotor Hub N70224 pt ay S EN o 22 ET 2 23 24 25 27 28 29 30 Carbon Seal 216E 80 1A 1 3 Seal O Ring 01 1165 19 E ES KS LE EE EEN Ki oo NE 7 CANA Stee AE KS a EN SetScrews SCTIOBASS 3 ES SetScrews
14. d to insure they are capable of performing their planned functions and are in proper working condition These devices should be serviced according to the manufacturer s instructions It is recommended periodic inspections be made of the equipment with an initial inspection done within 3 to 4 months of installation at the minimum Check the standards set by the National Electrical Manufacturers Association NEMA for inspection of the electrical control system and for setting up a scheduled maintenance and inspection program Ampco Pumps Company 3 SAFETY CONTINUED DO NOT ATTEMPT TO MODIFY AMPCO PUMPS COMPANY BLENDERS Your altering the product may give rise to unsafe conditions and result in harm to you or others Altering the product voids Ampco Pumps warranty on the blender Ampco blenders should only be used where general product service ratings apply This manual uses the following warnings and cautions to help you avoid injury or possible equipment damage Indicates a hazardous situation is imminent that will result in death or serious injury if not avoided Marked with a warning triangle to indicate that hazards or unsafe practices if not avoided could result in severe injury or death Also used to warn against unsafe functioning or maintenance practices Marked with a warning triangle to indicate that hazards or unsafe practices if not avoided could result in death or injury or product or property damage All A
15. equires little maintenance however it is necessary to sanitize and inspect the equipment regularly It is expected that occasional problems will occur This section of the service manual is intended to assist you in determining the cause of the problem and how to correct the problem you may be having with your blender Problems with the motor drive should be directed to the motor manufacturer The chart below lists problems probable causes and remedies with the assumption that the blender is suitable to the application and has been properly installed If the suggested remedies do not resolve the problem it may be that impeller cavitation is the problem If the suction tube and the auxiliary pump are not applied correctly you may experience the symptoms of cavitation such as vibration insufficient discharge and noisy operation Ampco recommends you double check the system and the application if any of these symptoms occur If you need further assistance contact Ampco Pumps Company PROBLEM PROBABLE CAUSE REMEDY 1 No suction a Wrong supply pump or need of a Verify that pumps are sized correctly to suit discharge pump application Contact Ampco Pumps Company if you require assistance b Leak on the suction side of the supply pump or blender b Tighten all clamps and fittings Replace worn out gaskets c Carbon seal is worn c Replace carbon seal on blender and or d Wrong direction of rotation supply pump e Liduid i
16. ged or lost in transit All products are shipped from Ampco Pumps in good condition a statement verifying that good condition is signed by the carrier at the time of shipment from Ampco Ampco Pumps is not responsible for filing or collection of freight claims or the replacement of products damaged or shorted in transit VVARRANTY CLAIM All products being returned for vvarranty must have a Returned Goods Authorization RGA before Ampco Pumps accepts them for return Ambco Pumbs Compan INTRODUCTION How It Works Powder is introduced through the inner tube while the liquid flows through the outer tube to the mixing chamber Because the liquid enters the chamber in the same direction as the impeller rotation the flow is accelerated with minimal splashing An inner screen creates back pressure moving the liquid down and creating a natural suction into which the dry ingredient is introduced by opening the butterfly valve AC Dry Blenders are also suitable for liquid to liquid applications INSTALLATION Unpacking Inspect the contents of all packages when unpacking your equipment If damage has occurred during shipment you must report the damage to the carrier Ampco Pumps Company is not responsible for damages that occur in transit Location and Installation It is important that the AC Dry Blender be installed with 3 feet 1 meter of the liquid source The supply piping should be short with a minimum number of elbows and fitti
17. ing the unit on its side On the top of the base loosen the mounting bolts that secure the drive to the base The base is slotted so the motor may be slid toward the blender Remove the drive belts Remove the bolts that secure the blender pulley to the underside of the base Use those same bolts and tighten into the forcing holes Finger tighten Using the appropriate wrench tighten the bolt until the pulley releases from the bushing Remove the bolt and the pulley Remove the tapered bushing from the shaft of the blender To remove the adapter ring and spacers hold the adapter ring to prevent it from falling while you remove the six cap screws Set the blender back down on all four legs Loosen the bearing housing from the base by removing the cap screws Grasp the bearing housing with both hands and firmly lift it off the blender base Remove the retaining ring Press the shaft from the housing Use the appropriate puller to remove the bearings from the shaft then remove the second bearing from the housing Check the stub shaft for nicks or scratches All components should be checked for cracks or wear Check o rings for damage Inspect the legs for worn threads Worn or damaged components should be replaced W000 00 0 000 J Bearings are sealed and have lifetime lubrication VVorn or damaged bearings should be replaced vvith identical bearings and be replaced as a set Ampco Pumps Compan 14
18. mpco blenders have safety labels Do not remove any labels from any Ampco Pumps product Ampco Pumps Compan VVARRANTY Ampco Pumps vvarrants its products for a period of one 1 year from the date of shipment Products will be free of material or workmanship defects Service of products for normal wear and tear is not covered under warranty Warranty does not cover damage caused by misuse incorrect maintenance or accident VVarranty applies to the original buyer only Products manufactured by others such as motors are not covered by Ampco Pumps warranty and limited to the original equipment manufacturer s warranty Under this vvarranty Ampco Pumps is obligated to repair or replace any products it determines to be defective Ampco reserves the right to inspect the product either in the field or at Ampco Pumps Glendale Wisconsin facility Freight to return the production for inspection is to be prepaid by the buyer Any duties taxes labor transportation or other costs are not Ampco Pumps responsibility Removal of product and installation of repaired or replaced product is the buyer s responsibility Ampco Pumps Company refutes all other vvarranties and shall not be liable for any incidental or indirect damages or the loss of profit or material resulting from or connected to the sale or operation of the Ampco blender SHIPPING DAMAGE OR LOSS You must immediately file a claim vvith the delivering carrier if the blender is dama
19. ngs that impact flow of the liquid into the blending chamber An eccentric reducer is recommended at the liquid inlet of the blender The need for future cleaning and inspection should be considered when installing the blender A supply pump is required to feed the liquid to the blender A discharge pump may also be required for certain applications Contact Ampco Pumps for supply and discharge pump recommendations The adjustable legs should be installed to the base of the unit and the blender should be positioned where the blending operation will take place Use a wrench to adjust the legs one at a time until the unit is level Ampco Pumps Company 6 Installation continued Connect the supply and discharge piping making sure each is positioned correctly and properly supported Incorrect piping may result in strain on the blender casing The AC 2116 model has a 1 4 inch 38 1mm liquid inlet 2 inch 50 8mm powder inlet and 1 1 2 inch 38 1mm liquid outlet The AC 3218 model has 1 1 2 inch 38 1mm liquid inlet 3 inch 76 2mm powder inlet and 2 inch 50 8mm liquid outlet The AC 4329 model has a 2 inch 50 8mm liquid inlet 4 inch 101 6 mm powder inlet and 3 inch 76 2 mm liquid outlet The purchaser is responsible for supplying and installing all piping Liquid inlet piping should be short and provide a direct route into the blender There should be a minimum number of elbows and fittings in the supply piping Elbows in
20. nlet port on the wrong d Reverse a three phase motor by switching side any two of the three power leads at the motor or controller f Splashing in the suction throat of the Tri Blender e Remove inlet adapter housing and relocate so it is correctly positioned as shown on g High percentage of solids the exploded view pages High temperature f High Flow oversized supply pump see 1a and 1d above Ampco Pumps Company 21 2 Insufficient discharge 3 Excessive power consumption 4 Tri Blender is noisy 5 Excessive vibration 6 Dry Blender leaks a High percentage of solids with screen in casing b No liquids c Product too viscous or discharge head too great a High percentage of solids with screen in casing b No liquids a Magnetic hum in motor b Motor bearings are worn c Tri Blender bearings are worn d Foreign matter is rotating with impeller e Blender screen rotating inside casing a Blender is not leveled properly b Impeller is damaged c Foreign matter in casing a O ring seal is worn b Carbon seal is worn c Insufficient compression on seal d Backplate gasket is worn e Backplate is worn f Clamp is loose g See 3b h Reduce temperature below 140 F 60 C a Remove screen b Check supply pump c Add discharge pump a Remove screen b Install discharge pump on discharge en
21. of the shaft The bearing housing should then be installed by placing it on top of the base and tightening the bolts Place the deflector at the top of the bearing housing The retainer ring and spacers are set by first screwing the six spacers into the ring then bolting the spacers onto the base plate If your blender has the DG seal install the seal gland ring with gaskets and insert to the back plate before installing the back plate Slide the back plate over the shaft being careful to not damage the sealing surface Place the back plate onto the retainer ring Center the shaft by tightening the spacer bolts in a cross pattern Once the shaft is centered remove the back plate To install the motor the blender must be tipped back on its side Tighten the motors bolts so they touch the bottom of the base and can be used to adjust the tension on the belts To install the pulley system start with the blender pulley installing the pulley key pulley and bushing Tighten the bolts Next install the motor end of the pulley system Install the motor pulley key the pulley and the bushing Tighten the bolts Both pulleys should be aligned horizontally Use the mounting bolts to draw the motor pulley tight Tighten the bolts a small amount at a time alternating between the three until all are tight Now you need to install the drive belts onto both the motor and the blender pulley You may need to move the motor to do this The plate that h
22. olds the motor to the top of the base has slots with bolts that can be loosened to allow for this movement Once the drive belts are on the pulleys move the motor back and away from the blender until there is a deflection of 5 16 7 9mm when applying 5 to 7 pounds of force to the belt Secure the motor and set the blender back on all four legs Ampco Pumps Company 16 19 Install the seal See the instructions for setting the drive collar and seal replacement 20 Place the casing gasket on the back plate and install the back plate on the shaft 21 Install the impeller by tightening it down with the impeller nut making sure the impeller nut gasket is included 22 Place the screen to the notch on the inside of the casing Check to see the screen fits snugly and does not spin 23 Firmly place the casing on the back plate and use the casing clamp to secure 24 Install the seal guard below the casing 25 Place the inlet adapter above the casing Secure the adapter to the casing with the clamp and gasket 26 Add the diffuser and suction tube assembly to the top of the inlet adapter Secure with the clamp and gasket 27 Install the butterfly valve if supplied with the blender 28 Install the hopper to the top of the butterfly valve and secure it with a gasket and clamp Ampco Pumps Compan 17 MAINTENANCE SETTING THE DRIVE COLLAR AND SEAL REPLACEMENT Follow these steps before continuing to the final assembly steps BLE
23. procedure for each model is included There are three types of seals available for the AC Dry Blender D DG and E Double Seal Disassembly varies according to the seal type LOCK OUT EQUIPMENT BEFORE SERVICING Ampco Pumps Company 10 Basic Disassembly 1 Disconnect the blender from the liquid inlet piping suction and the discharge piping 2 Loosen the nut on the clamp securing the hopper to the blender until the tension on the clamp is relieved 3 Remove the clamp hopper and gasket Loosen the clamp holding the control valve Pe Hold the valve while removing the clamp to prevent it from falling To repair the valve see manufacturer s instructions 6 Loosen and remove the clamp at the top of the inlet adapter 7 Remove the clamp the diffuser and the suction tube 8 Loosen and remove the clamp securing the inlet tube adapter to the casing 9 Remove the adapter and the gasket 10 Remove the large clamp that secures the casing to the back plate 11 Using both hands firmly pull the casing straight up and away from the back plate 12 Remove the screen from inside the casing 13 Using the appropriate wrench remove the nut and gasket that secure the impeller to the stub shaft 14 Remove the impeller From this point forward disassembly varies according to the type of seal in the blender Refer to the instructions for your specific seal arrangement D Seal DG Seal E Seal Ampco Pumps
24. tenance Use a locking device for which only the person doing the work has the key In order to clean and sanitize the blender it is necessary to disassemble all the parts to the AC except for the drive motor Disconnect the liquid supply piping and the discharge piping from the blender Remove the clamp securing the hopper to the AC Dry Blender The AC 4329 is normally not ordered with a hopper and valve If that is the case with your blender skip to step 5 Remove the clamp connecting the end connections of the Butterfly valve Refer to valve manual for disassembling the valve Remove the clamps and blender tubes beginning at the top and working towards the bottom Continue until you reach the casing 10 11 12 13 14 15 16 17 Ampco Pumps Company 8 Remove the clamp that secures the casing to the back plate Use both hands to firmly grasp the casing pulling it up and off the back plate A gasket separates the casing and back plate Do not use a tool to try and pry them apart This could damage the surfaces of the adapter ring and the gasket Firmly tugging the casing should separate the casing from the back plate Remove the screen inside the casing Remove the impeller and back plate Protect the sealing surface of the back plate against all nicks and scratches when removing for cleaning and disassembly Rinse all disassembled parts with lukewarm water approximately 100 deg F until all traces of produ
25. the liquid inlet piping will produce increased friction in the line which will result in cavitation in the blender casing Cavitation will result in vibration noise poor performance and possible damage to the blender It is recommended the pipe diameter at the inlet be increased in size where possible Using an eccentric tapered reducer in place of a concentric reducer at the inlet will help direct the flow to minimize turbulence It is possible to order the blender with an electrically controlled Butterfly valve The electric valve should be wired to an auxiliary 110V power source This will allow the valve to operate separately from the blender motor so it may be closed if the motor fails If the power source to the Butterfly valve the 110v also fails it should be possible to manually override the valve by applying a wrench to the flats on the coupling adapter Ha Ampco Pumps Compan MAINTENANCE General The AC Dry Blender requires only normal cleaning and inspection to insure its best performance The blender is relatively maintenance free but Ampco Pumps Company recommends periodic inspection of seals and seal faces Worn or damaged parts that may include cuts or abrasions to seals or nicks or cracks to seal faces should be replaced upon detection Cleaning WARNING Relieve pressure and remove all fluid from blender prior to disassembly WARNING Turn off electrical power supply and Lock Out before servicing or main
26. tions for setting the drive collar and seal replacement on page 17 9 Again place the impeller back gasket and impeller on the stub shaft Place the impeller nut gasket on the impeller nut Secure the impeller by tightening the impeller nut 10 Place the screen to the notch on the inside of the casing Check to see the screen fits snugly and does not spin 11 Set the casing on the back plate and clamp together with the large casing clamp 12 Install the seal guard 13 Install the inlet tube assembly with gaskets and clamps Tighten clamps Note there is a top and bottom to the inlet tube assembly Place the assembly to be opposite the casing outlet tube 14 Install the diffuser and suction tube with the gaskets and clamps Tighten securely 15 Mount the control valve with gaskets and clamps Tighten 16 Mount the hopper to the top of the valve with gaskets and clamps Tighten 17 Connect supply and discharge piping Ampco Pumps Compan 10 11 12 13 14 15 16 1 18 REASSEMBLY Continued Models AC 3218 and AC 4329 Place the o ring into the deflector collar From the bottom slide one bearing onto the shaft until it rests against the shoulder The AC 4329 model requires two bearings at the shoulder of the shaft Place the shaft in the bearing housing The other bearing should be installed on the shaft through the bottom of the bearing housing Place the retaining ring on the bottom
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