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Allied Construction Products, LLC www.alliedcp.com

SOM576778_15apr

9

5.0 Sizing the Breaker – [cont’d]

Conversions to machines equipped with a factory or
dealer installed auxiliary circuit may require little more
than minor adjustments to flow and pressure settings.
Follow the machine manufacturer’s instructions when
making any adjustments.

If the machine is not equipped with a hydraulic circuit,
a conversion kit, from Allied, can be installed. When
necessary, Allied conversion kits include the Allied
"AC" series valves. These are solenoid-operated
valves that control flow and pressure.

Fig 5-1 Allied Conversion Kit With AC-Series Valve

The process of selecting the right breaker must
consider the type of work to be done. This includes
any special needs such as required modifications
when working in underwater applications

Requests for further information or assistance with
breaker selection should be directed to your Allied
dealer or by contacting the Allied Sales or Product /
Technical Support Departments.

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Содержание AR Series

Страница 1: ...ing Keep this manual in a convenient location so that it is easily accessible for future reference Contact your Allied Dealer or the Allied Customer Service Department for replacement manuals Inquiries regarding the content of this manual must include effective date shown on inside cover SOM576778 AR Series AR Series Hydraulic Impact Breaker Model AR70D AR75B AR85B AR95B Safety Operation and Maint...

Страница 2: ...ruction Products LLC reserves the right to change edit delete or modify the content of this document including descriptions illustrations and specifications without prior notification For product or document updates go to www alliedcp com Table of Revision History for Document No SOM576778 Effective Date Page Summary of Change 2015 Apr Housing Box AR85B Begin S N 01213 Housing Box AR95B Begin S N ...

Страница 3: ...g S1 Safety Alert Symbol The Safety Alert Symbol Fig S1 either used alone or in conjunction with a signal word is used to draw attention to the presence of potential safety hazards Signal Words DANGER WARNING and CAUTION are signal words used to express severity of consequences should a hazard be encountered DANGER Indicates an imminent hazard which if not avoided will result in death or serious i...

Страница 4: ...in a safe distance from the Breaker while in operation L3 FLYING DEBRIES Decal alerts of the risk of injury from impact by rock fragments Protective guards must be placed between the breaker and operator to shield against material fragments becoming projectiles It directs personnel to the safety instructions in the Operator s Manual NOTE Place the smaller size decal in a conspicuous location insid...

Страница 5: ...equipment damage if instructions are not followed L10 PRESSURE I D TAG The hydraulic supply hose is tagged for ease of identification L12 ALLIED LOGO This decal is the Allied brand identifier and is a registered trademark of Allied Construction Products LLC L11 ALLIED LOGO This decal is the Allied brand identifier and is a registered trademark of Allied Construction Products LLC L13 AR70D MODEL De...

Страница 6: ...rds required on cab when operating this work tool Fragments debris becoming airborne projectiles Falling object Unsupported loads Personal Protection Equipment Hearing protection Safety eyewear Gloves Safety shoes Falling part Moving part in direction indicated by arrow Pinch point Crush point Leaking fluid under pressure Hot surfaces Gas Oil under pressure Shut off carrier remove key before servi...

Страница 7: ...lude but not limited to Locating existing underground service and utility lines Establishing pedestrian barriers Using personnel protection equipment appropriate to working conditions etc Federal State Local and OSHA Construction Guidelines and Regulations Use the Allied equipment in accordance with all federal state and local regulations regarding construction practices and public safety Identifi...

Страница 8: ...to danger areas Guards are fitted to the Allied equipment to protect against unsafe situations that could not be eliminated through design measures Guards are only effective when properly installed and in place Guards shall not be removed unless for the purpose of inspection and service of components Reinstall all guards after service or adjustments are completed Where it was not possible to preve...

Страница 9: ... 2 Owner s Responsibilities 4 3 3 Allied Product Policies 5 SECTION Pg 4 0 Product Information 6 4 1 Description and Typical Applications 6 4 2 Familiarization of Breaker Components 6 4 3 Principle of Operation 6 5 0 Sizing the Breaker 8 5 1 Selecting the Proper Size Breaker 8 5 2 Auxiliary Circuit Conversion Kits 8 6 0 Operation 10 6 1 Before the Breaker is Used 10 6 1 1 Pre Operation Inspection ...

Страница 10: ...2 Tools Required 30 10 5 3 Installing the Tool 30 10 6 Tool Re Lubrication Conventional Method 30 10 7 Avoid Costly Lubrication Mistakes 31 10 8 Automatic Lubrication Systems 32 10 8 1 Carrier Mounted Lube Systems 32 SECTION Pg 10 8 2 Breaker Mounted Lube Systems 32 10 9 Chisel Paste 32 11 0 Tool Selection Application Guide 33 11 1 Match the Application 33 11 1 1 Penetrative vs Impact Breaking 33 ...

Страница 11: ... Pin on Mounting Bracket Typical 25 9 2 Attach Breaker to Carrier Typical 26 9 3 Port IN OUT Marked on Valve Housing 26 9 4 Check Hose Routing 26 9 5 Close Supply Return Line Valves 27 10 1 Tool Removal AR70D 29 10 2 Tool Removal AR75B 85B 95B 29 10 3 Lubricant On Tool Visible to Operator 30 Figure Pg 10 4 Stand Breaker Upright Before Greasing 31 10 5 Tool Lubrication Point 31 10 6 Pre Lube the To...

Страница 12: ...terial presented in this manual including tables figures descriptions and captions may show equipment that is optional The content of this document has been reviewed for accuracy Allied Construction Products LLC has endeavored to deliver the highest degree of accuracy and every effort has made to provide information as complete as possible However continuous improvement of our products is an Allie...

Страница 13: ...or operators and maintenance personnel of hydraulic mounted breakers The manual is available in Spanish French and English It is published in an illustrated format of sensible do s and don ts featuring typical daily situations on the job site Content includes safety tips concerning the workplace and equipment start up and shut down guidelines and special operating and maintenance precautions This ...

Страница 14: ...odel number Serial number Year of manufacture Weight Confirm that the information contained on the Tag corresponds with the information provided in Section 1 Table 1 1 2 3 Record Equipment ID Information for Future Reference Your local Allied dealer requires complete information about the equipment to better assist you with questions regarding parts warranty operation maintenance or repair Copy th...

Страница 15: ...sure that personnel entrusted with installation operation and maintenance of the Allied equipment adhere to the following Read and fully understand the information included in this manual Recognize that operating this equipment in conditional applications such as working underwater requires modifications to the standard breaker and additional training for the operator maintenance and service perso...

Страница 16: ...tion Carelessness Incorrect operating methods Inattention to re lubrication and other maintenance requirements Misuse Unapproved applications Inadequate or Absence of Training Use of non genuine Allied replacement parts Unapproved modifications Use of grease which is not or is only conditionally pumpable The use of a lubricant type that is unsuitable for the application Allied Chisel Paste is reco...

Страница 17: ... of skulls from the steel industry 4 2 Familiarization of Components Fig 4 1 Main Components of Hydraulic Breaker 4 3 Principle of Operation Fig 4 2 Cutaway of Breaker Assembly The Breaker is not self powered Performance relies on a capable host machine that s equipped with a hydraulic circuit Within the hydraulic circuit an ON OFF valve is used to control flow in one direction to the Breaker The ...

Страница 18: ...ton nears the top of its stroke signal ports inside the cylinder become pressurized and shift the operating valve closed Oil is blocked from exiting and the upper end of the cylinder becomes pressurized The final half of the cycle begins with the piston at the top if its stroke The force from the pressurized oil from the host machine combines with the pressurized oil discharged stored in the accum...

Страница 19: ...re the carrier can safely handle the weight of the breaker always consult the specifications in the manual provided by the carrier manufacturer Factors such as boom and stick length undercarriage and tracks counterweights etc all affect the lifting capacity of the carrier Check the machine for any modifications and also take into account any add ons such as a quick attach coupler Next review the h...

Страница 20: ...sion kit from Allied can be installed When necessary Allied conversion kits include the Allied AC series valves These are solenoid operated valves that control flow and pressure Fig 5 1 Allied Conversion Kit With AC Series Valve The process of selecting the right breaker must consider the type of work to be done This includes any special needs such as required modifications when working in underwa...

Страница 21: ...tion 7 of this manual 6 2 Proper Operation of the Breaker CAUTION Before work can start identify all site hazards including electrical and gas utilities CAUTION Only qualified personnel shall operate the breaker Never activate the breaker unless the operator is seated in the operator s seat and is in full control of the machine CAUTION Injury from flying debris Personal protection equipment is req...

Страница 22: ... advance inward NOTE The force of the impact is dampened by soft ground underneath the material and by rock dust accumulated at the tool Tilt the breaker to expel dust away from the tool Tilt no more than 5º to avoid placing a strain on the front head and bending the tool 6 3 Operating Mistakes to Avoid IMPORTANT Equipment damage may result if proper procedures are not followed Carefully read thro...

Страница 23: ...the Breaker The leading cause of tool breakage is from bending In the occurrence of tool failures from bending the length of the tool skill level of the operator and lubrication management all play a decisive role Prying will damage other parts as well including the bushings front head and housing Fig 6 7 Do Not Pry With the Breaker 6 3 3 Do Not Drop or Hack at Material Avoid uncontrolled movement...

Страница 24: ...to avoid damaging internal components including the piston and seals Additional equipment and training is required Further instructions should be directed to the Allied Technical Service Department 6 4 2 Working Underground When using the Breaker underground tunneling or mining applications special safety regulations may apply Additional considerations include Use of water sprays to suppress dust ...

Страница 25: ...tarting the Breaker Follow instructions provided by the carrier manufacturer for on warming up the carrier Keep the oil circulating in the carrier during pauses in work to prevent it from falling below a temperature that is too cold for normal operation Specify hydraulic oils with viscosity suitable for the climate conditions In general the hydraulic oil that was originally specified for the machi...

Страница 26: ...cessary to shorten service intervals if using water content hydraulic fluid or operating under extreme temperatures dust high humidity or elevations etc Use regular component inspection to determine if interval adjustment is warranted In addition to monitoring parts for wear the aim of these inspections is to spot and correct problem areas in their early stages before damage escalates and the more...

Страница 27: ...lity of hydraulic oil Service hydraulic oil filters Test hydraulic circuit with flow meter and pressure gages 7 2 Equipment Maintenance Log The importance of regular maintenance along with frequent inspections and detailed record keeping cannot be overemphasized Keep an updated log of equipment maintenance Records of services performed and any repair are helpful if warranty coverage is ever in que...

Страница 28: ...aker to contact the housing Table 7 1 Buffer Wear Limits Inch mm AR70D AR75B AR85B AR95B A Min B Min C Min D Min 7 4 Front Head Assembly Inspect Every 2 Hours Critical parts such as the tool and bushing must be actively monitored for wear The aim of regular inspections is to spot problems early If the condition of the front head is left unchecked minor repairs can quickly escalate into serious dam...

Страница 29: ...r side loading the tool against the bushing Review the frequency quantity and quality of lubricant Shorten re lubrication interval if the tool is dry or if chisel paste is not used Fig 7 4 Gap D1 Between Tool D2 and Bushing D3 IMPORTANT Regularly measure the tool and bushing Continued operation with worn bushings and tool will increase the risk of misalignment which can lead to piston and seal dam...

Страница 30: ...one to twisting Tool bushing or retainer Rapid wear or galling Ineffective lubricant Insufficient re lubrication Lubricant must meet application requirements Re lubricate every 2 hours sooner if tool shank is dry Increase quantity and frequency Use Chisel Paste Thrust Ring Chipped cracked or uneven wear Idle blows Maintain sufficient feed force Stop breaker as soon as material breaks Align tool at...

Страница 31: ...he piston Contact your Allied service center 7 6 Inspection of N2 Gas Charged Accumulator The accumulator is a self contained pressure vessel with an elastic membrane dividing the inner chamber The lower chamber is used to receive store and discharge pressurized oil The upper chamber is pressurized with nitrogen gas Visually inspect the accumulator daily for oil leaks and broken or loose bolts Dur...

Страница 32: ... s maintenance schedule It may specify operating conditions that require special attention to maintenance and adjusted service intervals CAUTION Follow the service intervals recommended by the carrier manufacturer 7 11 Measuring Oil Pressure All hydraulic breakers are designed for optimum performance with reliable service life when operated within specified parameters Monitor the efficiency of the...

Страница 33: ...rment or loss Hearing protection must be worn when breaker is in operation CAUTION Crush injury from falling or shifting loads All loads must be stable before service begins Engage interlock shut off carrier and remove key Follow safety instructions in the manual provided by the carrier manufacturer 7 11 2 How to measure the oil pressure IMPORTANT Contamination can shorten service life Prevent dir...

Страница 34: ... Section 9 6 3 Secure hoses to unit to avoid accidental damage 4 Lift the Breaker at approved lift points only with appropriate lifting equipment 5 Adequately stabilize and secure the Breaker for transport 8 2 Transport Breaker Installed on Carrier 1 Remove all loose debris from Breaker 2 Secure hoses to unit to avoid accidental damage 3 Inspect the mounting pins and hardware for damage and integr...

Страница 35: ...rly Fig 8 3 Push Piston To Its Highest Position 4 Protect the lower end of the piston with grease IMPORTANT Exposure to moisture can cause destructive rust and pitting on piston Protect from damage by coating the exposed surface below the wiper with grease Fig 8 4 Protect Piston From Water Damage 5 The Breaker must be stored in the vertical position WARNING Crush Hazard Unsupported loads may cause...

Страница 36: ...eaker No special tools are required but the following tools should be available PPE including Safety eyewear gloves Sledge Hammer Drift pin 3 4 drive socket wrench 3 4 drive metric sockets Grease gun Standard and Metric open end wrenches Pry bar Rags 9 4 Attach Breaker to the Carrier CAUTION Some procedures such as attaching the Breaker to and from the carrier will require an assistant Both the op...

Страница 37: ...tems should install the breaker Identify whether the carrier s pressure line is located on the right hand or left hand side Do not guess The Breaker will not operate if these hoses are crossed IMPORTANT For ease of identification the supply hose is tagged with a red colored cable tie and marked PRESSURE LINE Connect this hose to the port marked IN on the breaker as shown in Fig 9 3 IMPORTANT Conta...

Страница 38: ...CAUTION Burn injury from contact with hot surface Some components become hot during operation Allow parts and fluids to cool before handling 9 6 1 Tools Required For Removal No special tools are required but the following tools should be available PPE including safety eyewear gloves Sledge Hammer Drift pin 3 4 drive socket wrench 3 4 drive metric sockets Standard and Metric open end wrenches Pry b...

Страница 39: ...mponents of the breaker are heavy Use suitable lifting equipment 10 2 Tools Required Screw Driver or round push bar Hammer Hand sledge Sling and lifting device 10 3 Overview of Tool Retainer System The arrangement of front head components and the procedure for removing and installing the tool is essentially the same for all models The tool can be changed with the breaker on or off the carrier The ...

Страница 40: ...Allied Construction Products LLC www alliedcp com SOM576778_15apr 29 10 0 Changing the Breaker Tool cont d Fig 10 1 Removing the Tool AR70D Fig 10 2 Removing the Tool AR75B AR85B AR95B ...

Страница 41: ...ep dirt and rocks from contaminating the grease The arrangement of front head components and the procedure for removing and installing the tool is essentially the same for all models The tool can be changed with the breaker on or off the carrier The tool is inserted into the open end of the front head and retained by a pin which passes through the notched area of the breaker tool The tool pin is h...

Страница 42: ...lying horizontally as shown in Figure 10 4 Insufficient seating of the tool against the thrust ring will risk grease by pass into the impact chamber the area where the piston strikes the tool Formation of grease in this area can produce pressures that can dislodge seals CAUTION If an automatic dispenser provides re lubrication of the tool please read carefully When delivery is continuous and the o...

Страница 43: ...ing kits it is necessary to provide the make and model of the carrier and breaker 10 8 2 Hammer Mounted Lubricator HML Series The AutoLube HML series is a compact size pump that mounts directly to the breaker There are no electric or hydraulic connections Grease is dispensed when the pump is pulsated by the breaker The refillable reservoir is transparent and allows easy monitoring Delivery is adju...

Страница 44: ...e weak metamorphic rock and general breaking of concrete The conical preforms well when working in reinforced concrete because its round shape resists twisting that can lead to retainer pin and pin slot deformation B Chisel Wedge Cross Cut transverse or In line parallel Same applications as the conical Useful when cutting action is required C Blunt Designed for impact breaking the blunt tool is ef...

Страница 45: ...l having knowledge of the machine s systems proper test equipment and tools should attempt accumulator repairs Prevent injury from unexpected release of high pressure gaseous energy The gas must be released before disassembly of accumulator Protective eyewear must be worn when servicing the accumulator Fig 12 1 N2 Gas Charge Tool Table 12 1 N2 Gas Charge Kit Item Description Part No Qty Remarks Sp...

Страница 46: ...urface Read understand and follow all instructions for the safe and proper use of this tool These instructions were prepared to assist the qualified technician with the information necessary for measuring filling the Accumulator figure 12 2 12 2 1 Tools Required 1 Charge Kit 570071 Fig 12 1 Source additional equipment locally Nitrogen Bottle with pressure regulator is recommended Screwdriver Combi...

Страница 47: ...ooling of the gas is normal when gas is transferred from the bottle It is important not to fill the accumulator too quickly or risk damage to the rubber membrane 1 Follow the instructions described in Section 12 3 for connecting the charge tool 2 Unseat the charge bolt by turning the T handle 3 revolutions CCW 3 SLOWLY open valve on nitrogen bottle 4 Adjust pressure regulator and SLOWLY fill the a...

Страница 48: ...ol is correct Insufficient oil pressure Refer to section Operating Pressure Too Low Return line pressure too high Refer to section Return Line Pressure Too High Carrier hydraulic circuit leaks Locate source of bypass Adjust repair or replace faulty components Control valve Carrier misadjusted or malfunction Incorrect working mode Troubleshoot valve for mechanical pilot circuit or electrical fault ...

Страница 49: ...ailure Hydraulic oil overheating Oil temperature should not exceed 176 F 80 C Blow frequency BPM slows down Hydraulic oil is overheated Refer to section Operating Temperature Too High Return line pressure too high Refer to section Return Line Pressure Too High Flow too low Measure oil Flow Set to value listed in the specifications section of this manual Leakage in hydraulic circuit Carrier Test hy...

Страница 50: ...reaker tool is receiving sufficient lubrication Use Chisel Paste Return line pressure too high Refer to Return Line Pressure Too High section Excessive cycle time Limit cycle time to 15 seconds maximum Review operating technique Section 6 Oil flow too high Set to value listed in the specifications section of this manual Breaking cycle too long Review operating technique and application Reduce adva...

Страница 51: ...aged from galling deep gouge or corrosion Operator technique to adopt correct working angle Maintain right angle to work surface Refer to operating technique Section 6 Check tool is receiving sufficient lubrication Increase lubrication frequency Use grease that is approved for this application such as a premium high temperature and extreme pressure type grease Allied Chisel Paste is specifically f...

Страница 52: ...ve An adjustable spring loaded valve that opens when a preset pressure value is reached A relief valve is safety device used to protect the circuit against hydraulic overload Relief valves vary in design Pilot controlled pressure relief valves are designed so that the relief pressure increases very little as the flow through the valve increases For Breaker applications they are recommended over di...

Страница 53: ... to the breaker to eliminate any possible faults e g collapsed hose Work Mode Engine RPM Flow GPM Load Pressure PSI Oil Temp ºF Relief Pressure Crack Relief Pressure Static Return Pressure PSI 0 1000 1500 1800 2000 2200 2400 2600 2800 3000 3200 3400 CAUTION Before starting make sure the circuit to be tested has a relief valve Open restrictor valve on flow meter Procedures can vary depending on spe...

Страница 54: ...15 4 3 7 a Actual frequency depends on oil flow Factors that affect oil flow include oil viscosity and temperature b Permissible range Actual operating pressure depends on oil flow back pressure material to be broken c Permissible setting of MINIMUM pressure relief DYNAMIC Measured operating pressure Minimum 725 psi 50 Bar d Permissible setting of MAXIMUM pressure relief STATIC Not to exceed main ...

Страница 55: ...om SOM576778_15apr 44 14 0 Technical Information cont d Table 14 2 AR70D Fig 14 2 Standard Dimensions A inch 53 mm 1344 B inch 35 6 mm 906 C inch 17 3 mm 440 D inch 15 6 mm 397 E inch 11 2 mm 284 F inch 2 75 mm 70 G inch 11 mm 280 Mounting Family BR ...

Страница 56: ...3 6 9 a Actual frequency depends on oil flow Factors that affect oil flow include oil viscosity and temperature b Permissible range Actual operating pressure depends on oil flow back pressure material to be broken c Permissible setting of MINIMUM pressure relief DYNAMIC Measured operating pressure Minimum 725 psi 50 Bar d Permissible setting of MAXIMUM pressure relief STATIC Not to exceed main rel...

Страница 57: ...liedcp com SOM576778_15apr 46 14 0 Technical Information cont d Table 14 4 AR75B Fig 14 3 Standard Dimensions A inch 53 0 mm 1346 B inch 38 3 mm 973 C inch 17 3 mm 440 D inch 15 6 mm 399 E inch 8 7 mm 220 F inch 2 95 mm 75 Mounting Family BR ...

Страница 58: ...16 0 25 0 7 11 E 17 6 35 2 8 16 a Actual frequency depends on oil flow Factors that affect oil flow include oil viscosity and temperature b Permissible range Actual operating pressure depends on oil flow back pressure material to be broken c Permissible setting of MINIMUM pressure relief DYNAMIC Measured operating pressure Minimum 725 psi 50 Bar d Permissible setting of MAXIMUM pressure relief STA...

Страница 59: ...AR95B Fig 14 4 Standard Dimensions A inch 60 5 70 8 mm 1538 1800 B inch 42 1 47 8 mm 1069 1214 C inch 22 5 22 5 mm 560 560 D inch 16 1 16 1 mm 410 410 E inch 12 3 12 7 mm 314 324 F inch 3 35 3 74 mm 85 95 G inch 12 5 13 7 mm 320 350 Mounting Family SR SR Housing Box AR85B Begin S N 01213 Housing Box AR95B Begin S N 01114 ...

Страница 60: ...5B AR95B Fig 14 5 Standard Dimensions A inch 62 5 70 5 mm 1585 1790 B inch 44 5 50 mm 1132 1274 C inch 22 5 22 5 mm 560 560 D inch 16 1 16 1 mm 410 410 E inch 10 5 12 mm 270 304 F inch 3 35 3 74 mm 85 95 G inch 12 13 3 mm 305 339 Mounting Family SR SR Housing Box AR85B Begin S N 01213 Housing Box AR95B Begin S N 01114 ...

Страница 61: ... Bolts 12 M16 140 190 M16 140 190 B Housing Plate Long Bolt 2 M24 590 800 M24 425 580 C Housing Plate Short Bolt 4 M24 590 800 M24 425 580 D Side Rod 4 Table 14 8 Table 14 8 E Gas Charge Bolt 1 M08 15 20 M08 15 20 F HP Accum Top Bolt 8 M16 185 250 M18 220 300 G HP Accum Bottom Bolt 8 M16 185 250 M16 185 250 H Oper Valve Cover Bolt 4 M10 40 55 M10 40 55 J LP Accum Top Bolt 4 M16 185 250 Not Equippe...

Страница 62: ...rkt Bolts 10 M20 250 340 M20 250 340 B Housing Plate Long Bolt 2 M27 625 850 M30 850 1150 C Housing Plate Short Bolt 4 M27 625 850 M30 850 1150 D Side Rod 4 Table 14 8 Table 14 8 E Gas Charge Bolt 1 M08 20 30 M08 15 20 F Accum Top Bolt 8 M18 220 300 M18 220 300 G Accum Bottom Bolt 8 M16 185 250 M16 185 250 H Oper Valve Cover Bolt 4 M10 45 60 M10 45 60 J Top Bolt LP Accum Not Equipped Not Equipped ...

Страница 63: ...o ensure all side rods are evenly loaded Table 14 8 Side Rod Tightening Item D Ft Lbs N m IMPORTANT Apply Moly Paste 676927 to threads before assembly AR70D AR75B AR85B AR95B Step 1 Tighten side rod 1 Fig 14 6 Then tighten side rods 2 3 4 following the order shown in Figure 14 7 110 150 110 150 110 150 220 300 Step 2 Following the sequence Fig 14 6 tighten all side rods 220 300 220 300 220 300 370...

Страница 64: ...Allied Construction Products LLC www alliedcp com SOM576778_15apr 53 15 0 Service Record Service Performed By Date ...

Страница 65: ...Allied Construction Products LLC www alliedcp com SOM576778_15apr 54 NOTES By Date ...

Страница 66: ...SOM576778_14apr R ...

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