Skid Steer Backhoe Manual
Contents
1. assembling operating maintaining or working with this product are required to read and completely understand the information and instructions contained in this manual If anyone does not fully understand every part of this manual please obtain further assistance by contacting the dealer from which this product was purchased or by contacting FFC Attachments at the telephone number or address listed on the cover of this manual Keep this manual available for reference whenever this product is being handled or used Provide this manual to any new owners and or operators This manual covers model s LAF2301 LAF2302 and LAF2303 The difference between these models is the width of the backhoe bucket details of which are covered on the parts list and specification page s GENERAL INFORMATION The purpose of this manual is to assist in assembling mounting operating and maintaining your Backhoe Read this manual carefully to obtain valuable information and instructions that will help you achieve safe and dependable service The illustrations and data used in this manual were current at the time of printing but due to possible engineering and or production changes this product may vary slightly in detail FFC Attachments reserves the right to redesign and or change components as necessary without notification Throughout this manual references may be made to Power Unit The engine driven machine to which this product must be attached Dir2. bucket height constant to cut a shallow amount of soil IMPORTANT The tilt circuit of your power unit must be protected with a port relief ignoring this precaution CAN result in damage to your power unit and or this product and WILL void all FFC Attachments warranties WARNING Always back away from trenches before turning Failure to obey this warning could result in death or serious injury TO FILLA TRENCH 1 With the loader arms partially raised curl the dipperstick attachment mainframe forward with the bucket cylinder extended and the bottom of the bucket flat on the ground The entire height of the bucket should be visible Use the loader s tilt cylinder only to raise the bucket above the material pile Pivot the loader to reach over the pile and tilt the backhoe downward so the bottom of the bucket is approximately 12 below the top of the pile 4 Pivot the loader toward the trench using the side of the bucket to move the material into the trench Repeat this process lowering the bucket 6 at a time 5 Move your power unit forward and repeat the above steps to continue filling the trench co IMPORTANT Make sure the portion of the trench to be driven on is full before moving forward Moving on an unstable surface CAN result in damage to your power unit and or this product and WILL void all FFC Attachments warranties e Always lower the bucket to the ground set the parking brake stop engine remove ignition key and wa
3. fit properly contact FFC Attachments before operating Never place your finger into the mounting plate or 3 point hitch or loader holes A slight movement of the power unit or this product could cause serious injury BEFORE EACH USE THOROUGHLY INSPECT THIS PRODUCT AND Make certain that all safety signs are in place and legible Refer to the safety sign page in this manual for the placement of safety signs for this product Replace all damaged or excessively worn parts and hardware only with genuine FFC Attachments parts or with properly rated fasteners hydraulic hoses or fittings Make certain that all locking pins latches and connection devices are properly installed and secured Make certain that all protective guards canopies doors etc are in place and secure WHEN OPERATING THIS PRODUCT IN ACCORDANCE WITH DESIGN INTENTIONS Contact utility companies before digging Know your digging area Avoid hitting underground cables and pipes overhead wires and other hazards Do not drive near the trench Always back away from the trench before turning Never use backhoe on a power unit that is not equipped with a cab or ROPS and operator restraints seat belts or equivalent devices Do not use the backhoe to dislodge overhead objects Objects could fall and cause injury Do not attach a jack hammer to the backhoe Be careful when raising loaded bucket Objects could fall from bucket toward bystanders or operator Kn
4. in serious injury or death Always relieve hydraulic pressure before disconnecting lines e Shut off engine set parking brake and relieve hydraulic pressure before connecting or disconnecting hydraulic lines Refer to your power unit s manual for instructions on how to relieve hydraulic pressure in lines e Before applying pressure to the system be sure that all connections are tight and be sure there are no damaged hoses lines or fittings e Wear safety glasses and use metal or wood when searching for leaks Do not use your hands WARNING Before servicing the loader remove the attachment and make certain the lift arms are lowered to their lowest position or that the arms are supported by the mechanical lock up devices if the machine is so equipped e Steam clean the power unit before any installation is made to the hydraulic system Remove any attachment from the power unit and position on a level surface BACKHOE SERVICE continued SAFETY FIRST READ AND UNDERSTAND THE SAFETY INSTRUCTIONS pages 2 5 of this manual BEFORE BEGINNING ANY BACKHOE SERVICE e Locate a convenient place to tee into the loader s tilt circuit lines after they have passed through any self leveling devices or any other devices which may be present on these lines refer to your loader s service manual Locate a convenient area to tee into a return to tank line Once these areas are located find an area in close proximity for mounting
5. AND THE SAFETY INSTRUCTIONS pages 2 5 of this manual BEFORE BEGINNING ANY BACKHOE MOUNTING Place this product on a firm level surface that is large enough to safely accommodate this product your power unit and all workers involved in the mounting process Be sure all connection points are properly secured Refer to the operator s manual s for your power unit loader and quick attach and follow the mounting instructions contained therein Carefully raise the loader arms and cycle the tilt cylinders to check clearances and to verify that all mounting procedures have been successfully completed BACKHOE HYDRAULIC CONNECTION SAFETY FIRST READ AND UNDERSTAND THE SAFETY INSTRUCTIONS pages 2 5 of this manual BEFORE BEGINNING ANY BACKHOE HYDRAULIC CONNECTION Disconnect the hydraulic hose quick couplers from one another and attach the quick couplers to your power unit as per the instructions in your power unit s operator s manual Carefully raise the loader arm and cycle the tilt cylinders to check hose clearances and to check for any interference WARNING Do not lock the auxiliary hydraulics of your tractor or power unit in the ON position Failure to obey this warning could result in death or serious injury BACKHOE OPERATION SAFETY FIRST READ AND UNDERSTAND THE SAFETY INSTRUCTIONS pages 2 5 of this manual BEFORE BEGINNING ANY BACKHOE OPERATION DANGER Failure to obey the following procedures wil
6. Fr ATTACHMENTS A SWEEPSTER COMPANY SKID STEER BACKHOE Models covered LAF2301 LAF2302 and LAF2303 OWNERS amp OPERATORS MANUAL FFC Attachments part MR25515 FFC Attachments 100 East Lee Road Lee IL 60530 800 747 2132 www ffcattachments com 09 07 04 TABLE OF CONTENTS Introduction General Information Serial Number ooocccccccocccccncncononaccnncrnnnnnons 1 Owner and Operator Safety Information ooooooccccoccccccincnccconcnnanconcononancnnanananon 2 5 Definitions of Safety Terms and Symbols Accident Prevention 2 Safety INStructionS esnin iiin airean a nia cece eases essa eiaa aa 3 4 Safety SIJ S srono AA AAA AD AA a EN 5 Power Unit Specifications Mounting cococccccccccnccnconinancononcnnanconcnnonincnnnnncanon 6 Hydraulic Connection 2 0 eee ee cece e eect eee eee ee eee e deans dese e eee ease aetna eset 6 Operations aoaaa A deel UE Tate a eels ee ee 7 8 Manten CO AA A AE 9 SOM A A A a aoe ee 9 10 Parts lllustration 0 A A en a ee 11 Parts List Hydraulic Cylinder Illustration cccceeceeeeeeeeee esate eeeee eee eaeeaeeed 12 Supplemental coe A A A A AA a a 13 Specifications a sen de deh sdede beter dc dec agsenise ata coxa sauces uma ttensddaqeerdruate didsestas 14 NS i INTRODUCTION Congratulations on your purchase of a new FFC Attachments Backhoe This product has been designed and built to dig holes and trenches up to 60 deep You or any other person who will be
7. ON SN WS Y Zz LATER VERSION KQ OR Oh VALVE A REMOVEPLUG INSTALL RELIEF Ay CARTRIDGE NEW HOLLAND lt PART 86529091 RDL3154 For other machines using a screw in cartridge relief the butt end opposite the rod end of the tilt cylinder s needs to be protected Contact your dealer to confirm which plugged port the cartridge should be inserted Bobcat power units with BICS Bobcat Interlock Control System require no additional relief Bobcat power units without BICS but with a plug and a relief on the tilt spool require Bobcat part 6599161 cartridge to replace the plug John Deere 4475 5575 6675 7775 and 8875 power units require the JD part MG86529091 cartridge John Deere 240 250 260 270 and 280 power units with serial number lower than 400000 must use FFC Attachments part LAF4264 Fourth year production models however require no additional relief These may be identified with serial numbers greater than 440001 JD240 450001 JD250 460001 JD260 470001 JD270 and 480001 JD280 Scat Trak 1700 HD power units require no additional relief CASE 1845C and CASE XT power units require no additional relief GEHL 7600 amp 7800 and Mustang 2095 amp 2105 skidloaders can utilize a relief cartridge GEHL part 138703 screwed into their main control valve opposite the existing cartridge on the tilt circuit spool eliminating the need for FFC Attachments dual cross over relief IMPORTANT This cartridge
8. d this product with the safety information contained in this manual YOU are responsible to read ALL information contained in this manual to any operators or maintenance personnel who are not fully able to read the written English language Whether YOU read the manual as written or translate it into another language YOU must make certain that all operators and maintenance personnel have a complete understanding of the full and exact contents of this manual Translations of this manual into other languages are available by submitting a written request to FFC Attachments YOU can reduce the risk of injury or death by following all safety precautions and by using good safety practices SAFETY INSTRUCTIONS WORK SAFELY A CAREFUL OPERATOR IS THE BEST INSURANCE AGAINST ACCIDENTS SECTION 1 WARNING SECTION WARNING Obey all the safety instructions listed in this section and throughout this manual Failure to obey instructions in this section could result in death or serious injury BEFORE ATTEMPTING ANY TYPE OF ASSEMBLY OPERATION MAINTENANCE OR OTHER WORK ON OR NEAR THIS PRODUCT READ AND COMPLETELY UNDERSTAND THIS MANUAL READ AND COMPLETELY UNDERSTAND THE MANUALS PROVIDED WITH YOUR POWER UNIT LOADER AND QUICK ATTACH Read and understand all safety signs on this product and on your power unit loader and quick attach Know all your controls and know how to quickly stop all power unit movement the Backhoe movement and
9. e ends to keep out contaminants Drill the previously located holes IMPORTANT When drilling holes be sure that you are not drilling into a reservoir or any other sealed compartment Also be careful not to damage any hydraulic lines fittings pumps valves manifolds electric components batteries steering linkages safety devices etc e Reassemble the three lines onto the valve and install mounting bolts Check all connections for proper fit and tightness e Replace all guards shields and covers e Replace estimated lost hydraulic fluid using your loader s specifications e Start loader reposition the boom arms and dump cylinders according to the loader manufacturer s recommendations for checking fluid levels Add fluid as needed A A A 1 1 T T o 0 o 10 PARTS ILLUSTRATION 11 BACKHOE PARTS LIST LAF2301 LAF2302 LAF2303 ITEM QTY 12 18 24 DESCRIPTION 1 1 LAF2304 Attachment Mainframe 2 1 LAF2312 LAF2318 LAF2324 Backhoe Bucket 3 1 LAF4562 Hydraulic Cylinder 3 x 1 3 4 4000 psi 4 1 LAF9973 Pin 1 1 4 x 7 1 4 stressproof 5 2 LAF9972 Pin 1 1 4 x 8 5 8 stressproof 8 varies 3 4 5 LAF1000 Replaceable Point 1 9 varies 3 4 5 RHW8026 Roll Pin 5 16 x 1 3 4 10 2 LAF4298 Hydraulic Elbow 90 6MB 6MJ 11 5 RHW8090 Grease Zerk Y 28 tpi self tapping 12 3 RHW1213 Grade 5 Hex Head Cap Scre
10. e or shift positions Do not use wood or steel blocking that shows any signs of material decay Do not use blocking that is warped twisted or tapered Never operate controls from the ground Operate the controls only from the operator s station Never leave equipment unattended with the engine running or with this product raised on the loader Be aware of the added weight and width of this product Reduce travel speeds accordingly especially when traveling over rough ground Keep this product close to the ground and under control when transporting When transporting be sure backhoe does not block view of vehicle lights or road SAFETY INSTRUCTIONS WARNING SECTION CONTINUED WARNING Obey all the safety instructions listed in this section and throughout this manual Failure to obey instructions in this section could result in death or serious injury WHEN DEALING WITH HYDRAULICS DURING ANY TYPE OF ASSEMBLY OPERATION MAINTENANCE OR OTHER WORK ON OR NEAR THIS PRODUCT WHEN MOUNTING THIS PRODUCT TO YOUR POWER UNIT Hydraulic fluid under pressure can penetrate the skin and cause serious injury or death Hydraulic leaks under pressure may not be visible If any fluid penetrates the skin GET IMMEDIATE MEDICAL ATTENTION Wear safety glasses protective clothing and use a sound piece of cardboard or wood when searching for hydraulic leaks DO NOT USE YOUR HANDS Before connecting or disconnecting hydraulic hoses
11. ead and Allow the surface to fully dry R understand attachment Remove the backing from the safety sign exposing operator s manual the adhesive surface A Apply the safety sign to the position shown in the and all safety signs diagram above and smooth out any bubbles ITEM 2 ITEM 3 ITEM 4 DANGER Le TO AVOID SERIOUS INJURY OR DEATH FROM ELECTROCUTION CRUSHING OR EXPLOSION Do not contact overhead power lines or other objects with boom Do not operate with anyone under or within the maximum swing area of the boom Do not use hands to find hydraulic leaks Relieve pressure before disconnecting lines Me Pinch point V SSTG RDL3127 Do not dig until checking for under ground cal and pipelines Check with your local utility companies K rsons away from back of machine while digging and turning D3113 POWER UNIT SPECIFICATIONS IMPORTANT Exceeding any of the recommended power unit specifications CAN result in damage to your power unit and or this product and WILL void all FFC Attachments warranties LOADER DESCRIPTION MAXIMUM BUCKET SIZE LESS THAN 25 HORSEPOWER DO NOT USE MINI HOE 25 35 HORSEPOWER 12 BUCKET 35 45 HORSEPOWER 18 BUCKET 45 OR GREATER HORSEPOWER 24 BUCKET POWER UNIT S TILT CURCUIT HAS NO PORT INSTALL RELIEF VALVE FOR POWER UNIT S TILT RELIEF CIRCUIT BACKHOE MOUNTING SAFETY FIRST READ AND UNDERST
12. ections that are determined in relation to the operator of the equipment when seated Rigt LER Front near in the normal operating position IMPORTANT Precautions that must be followed to prevent damage to equipment NOTICE Precautions that must be followed to prevent substandard performance SERIAL NUMBER LOCATION Always refer to the model and serial number when ordering parts or requesting information from your dealer The serial number plate for this product is located on the upper left rear portion of the loader attachment plate of your Backhoe Reference Information Model Number Loader Make Serial Number Loader Model Date Purchased Loader Serial Number DEFINITION OF SAFETY TERMS AND SYMBOLS Throughout this manual the terms DANGER WARNING and CAUTION are used to indicate the degree of hazard to personnel if proper safety procedures are not followed These words will be used in conjunction with the Safety Alert Symbol a dark triangle containing a white exclamation mark The Safety Alert Symbol means ATTENTION BECOME ALERT YOUR SAFETY IS INVOLVED DANGER WARNING Indicates an imminently hazardous situation which if not avoided WILL result in death or serious injury Indicates a potentially hazardous situation which if not avoided could result in death or serious injury CAUTION Indicates a potentially hazardous situation which if not avoided may result in minor o
13. is IN ADDITION to the existing relief cartridge and is REQUIRED to protect the circuit of your power unit Failure to install the extra cartridge CAN result in damage to your power unit and this product and WILL void all FFC Attachments warranties Contact your skidloader dealer to obtain the correct relief cartridge and instructions for installation Other power units require FFC Attachments part LAF4264 Contact your dealer to confirm the proper relief is used 13 BACKHOE SPECIFICATIONS Model Overall Overall Overall Bucket Qty of Digging Depth Shipping Number Width Height Depth Capacity Teeth max to teeth Weight LAF2301 48 34 86 1 25 cu feet 3 60 635 Ibs LAF2302 48 34 86 1 97 cu feet 4 60 665 Ibs LAF2303 48 34 86 2 69 cu feet 5 60 695 Ibs All replacement hydraulic hoses must have a minimum rated working pressure of 4 000 psi Struck capacity Approximate depth only Power Unit will also affect depth capabilities TORQUE SPECIFICATIONS FOR STANDARD MACHINE HARDWARE FOR REFERENCE ONLY Bolt Size SAE Grade Bolt Torque Ft Lbs 5 16 18 5 17 3 8 16 5 30 14
14. it for all moving parts to stop before leaving the operator s seat BACKHOE MAINTENANCE SAFETY FIRST READ AND UNDERSTAND THE SAFETY INSTRUCTIONS pages 2 5 of this manual BEFORE BEGINNING ANY BACKHOE MAINTENANCE BEFORE FIRST USE e Inspect the attachment for shipping damage If damage does exist do not operate until the damaged parts have been replaced or repaired BEFORE EACH USE Make sure that all nuts and bolts are in place and properly tightened Make sure that all other fasteners are in place and are performing their specified function Make sure that all hydraulic fittings are tightened and that there are no leaks in any fittings or hoses Make sure that all safety signs are in place are clean and are legible SEE THE SAFETY SIGN SECTION Replace any damaged parts and excessively worn parts e Grease all 5 lubrication points AFTER EVERY 4 HOURS OF OPERATION e Grease all 5 lubrication points BACKHOE SERVICE SAFETY FIRST READ AND UNDERSTAND THE SAFETY INSTRUCTIONS pages 2 5 of this manual BEFORE BEGINNING ANY BACKHOE SERVICE Tilt Circuit secondary Relief Valve Installation e The purpose of this valve is to relieve high pressure in the loader s tilt circuit when the loader s main control valve does not have port relief for this circuit Read these instructions and your power unit s manual s before attempting installation WARNING Hydraulic fluid under pressure can penetrate the skin resulting
15. l manufacturer i e hardhat safety glasses work gloves protective shoes etc WHEN YOUR POWER UNIT IS USED DURING ANY TYPE OF ASSEMBLY OPERATION MAINTENANCE OR OTHER WORK ON OR NEAR THIS PRODUCT Before leaving the operator s station or before beginning any type of work on this product lower this product to the ground apply your power unit s parking brake stop the engine remove the starter key wait for all moving parts to stop and then relieve all pressure in the hydraulic lines Refer to your power unit s operator s manual for instructions on how to relieve hydraulic pressure in lines Know your loader s safe lifting and operating capacity and the weight of this product See the specifications in this manual for the weight of this product and refer to your power unit s and loader s operator s manuals for safe operating limits Lift capacity may be reduced if using a quick attach Never allow anyone except the operator to be around the power unit or this product when either is in motion Do not startup unless others are clear of the work area Do not allow riders on this product or the power unit Do not stand or climb on this product when raised Do not place any part of your body under any part of this product unless this product is securely resting on adequate blocking or on the ground Do not use blocking made of concrete blocks logs buckets barrels or any other material that could suddenly collaps
16. l result in death or serious injury e Avoid contacting overhead wires and underground pipes or cables Failure to heed may result in electrocution or explosion WARNING Failure to obey the following procedures could result in death or serious injury Never lift this product e above the operator s eye level OR e toa height where visibility is obstructed whichever is lower Use caution when raising loaded bucket Objects could fall from bucket toward bystanders or operator NOTICE USE OF REAR COUNTERWEIGHTS IS REQUIRED Refer to your power unit s operator s manual for safe operating limit and use of counterweights TO DIG 1 Be sure the loader is on solid ground before digging or lifting any load 2 With the loader arms partially raised and the bucket cylinder partially extended slowly curl the dipperstick toward the loader using the loader s tilt control The loader arms may need to be lowered or raised and or the bucket cylinder extended to allow the bucket to penetrate the soil 3 As the bucket fills extend the bucket cylinder and extend the dipper or raise the loader arms to lift the bucket clear of the hole 4 The depth of the hole will be controlled by the amount the dipper is extended and the height of the loader arms e Use extreme care when working on hillsides Always dump loaded bucket on uphill side of backhoe to minimize possibility of upset e Exercise caution when working close to fences ditches or on uneven gro
17. ow your loader s safe operating weight limit and the weight of loaded attachment Never dig close to loader s wheels or under the loader this can cause a cave in and vehicle overturn Do not drive near the trench Always back away from trench before turning Always dump loaded bucket on uphill side of backhoe to minimize possibility of upset Use caution when working close to fences and ditches or on uneven ground WHEN ADJUSTING SERVICING OR REPAIRING THIS PRODUCT Make no modifications to your Backhoe When making repairs use only genuine FFC Attachments parts or for fasteners hydraulic hoses or hydraulic fittings use only properly rated parts Replacement parts for parts with safety signs attached must also have safety signs attached SAFETY SIGN LOCATIONS ITEM QTY PART DESCRIPTION 1 1 RDL3141 READ MANUAL 2 1 RDL3129 HYDRAULIC 3 2 RDL3127 PINCH POINT 4 1 RDL3113 DANGER BACKHOE INSTRUCTIONS e Keep all safety signs clean and legible e Replace all missing illegible or damaged safety signs e Replacement parts for parts with safety signs attached must also have safety signs attached e Safety signs are available free of charge from your dealer or from FFC Attachments PLACEMENT OR REPLACEMENT OF ITEM 1 SAFETY SIGNS Clean the area of application with non flammable solvent then wash the same area with soap and PE Before operating water Z attachment r
18. r moderate injury OR may also be used to alert against unsafe practices which may result in personal injury ACCIDENTS CAN BE PREVENTED WITH YOUR HELP No accident prevention program can be successful without the wholehearted cooperation of the person who is directly responsible for the operation of the equipment To read equipment accident reports from all over the country is to be convinced that a large number of accidents can be prevented only by operators who consistently anticipate the results of their actions and thus prevent accidents from ever occurring No power driven equipment whether it is on the highway in a farm field or in an industrial plant can be any safer than the person who is at the controls If accidents are to be prevented and accidents can be prevented that prevention will come from equipment operators who accept their complete responsibility The designer the manufacturer and the safety engineer all help create a safe product but their combined efforts can be wiped out with a single careless act by the operator of that product The best safety device is a careful operator FFC Attachments and your dealer ask that YOU be that careful responsible equipment operator YOU ARE THE KEY TO SAFETY BECAUSE YOU are responsible for the SAFE operation and maintenance of YOUR Backhoe YOU are responsible to familiarize yourself and anyone else who will assemble operate maintain or work aroun
19. read your tractor or power unit s operator s manual for detailed instructions on connecting and disconnecting hydraulic attachments Make certain that all parts meet the specifications for this product when installing or replacing hydraulic hoses or fittings After connecting hydraulic lines gt Slowly and carefully raise the loader and cycle the rollback dump cylinders to check hose clearances and to check for any interference Operate the hydraulics on this product to check hose clearances and to check for any interference Make certain that the hoses cannot interfere with or actuate the quick attach mechanism Make certain that hoses will not be pinched or get tangled in any equipment Do not lock the auxiliary hydraulics of your power unit in the ON position Refer to your power unit s operator s manual and this manual for procedures and intervals then inspect and maintain the entire hydraulic system to insure that the fluid remains clean that all devices function properly and that there are no fluid leaks Refer to the operator s manuals of your power unit your loader and your quick attach for special or detailed mounting instructions This product should fit onto the quick attach or loader arms of your power unit the same as the original products that were designed by your loader quick attach manufacturer WORK SAFELY A CAREFUL OPERATOR IS THE BEST INSURANCE AGAINST ACCIDENTS If this product does not
20. the engine in case of an emergency Know and obey all applicable government rules O S H A regulations local laws and other professional guidelines for your operation Make sure that anyone who will be assembling mounting maintaining repairing removing and or storing this product has been instructed in the safe operation of this product and of the power unit and quick attach to which this product is attached is physically and mentally capable of the safe operation of this type of equipment is not under the influence of drugs or alcohol is carefully supervised from a safe distance especially if such person is inexperienced wears appropriate protective equipment i e hardhat safety glasses work gloves protective shoes respirator ear protection etc does not wear loose fitting clothing loose or uncovered hair or any accessories jewelry necktie scarf wrist watch etc that can catch in moving parts gt has annually reviewed all safety instructions Know and follow good work practices when assembling mounting maintaining repairing removing and storing this product gt Work on a level surface in a well lit area gt Keep the area clean and dry gt Use properly grounded electrical outlets tools gt Use the right tool for the job at hand gt Make sure that your tools are in good condition for performing the desired function gt When using tools wear the protective equipment specified by the too
21. the relief valve The valve can be mounted in any position Every effort should be made to ensure accessibility to the valve its cartridges fittings and any lines that will be added Careful consideration should also be made as to the type and size of the fittings and hoses that will be required before dismantling any hydraulic circuitry Keep any added fittings hoses or the valve a safe distance from all moving parts of the machine 3 8 pipe fittings 2 SAE o ring or JIC fittings and 3 8 hydraulic hoses are all adequate for the amount of flow required The valve s ports accept 3 8 NPT pipe fittings or SAE 8 o ring depending on the model of valve Be sure to differentiate between the two styles before proceeding NOTICE If using NPT pipe fittings anywhere on the loader s circuit it is recommended that you use a teflon based thread sealant Do NOT use teflon tape as it may enter the loader hydraulic circuit and cause relief poppets to stick open e Install the line from the butt end of the loader s tilt cylinders into port B on the valve Install the line from the rod end of the cylinder into port R on the valve and the return to tank line into port T Make sure all fittings and hoses are tightened securely and no hoses are stretched severely bent or kinked before mounting the valve e Using the valve as a template mark the location of two 9 32 holes Remove the three lines connected to the valve and seal the lin
22. und DO NOT e Dig close to the loader s wheels or under the loader this could cause a cave in and vehicle overturn TO DUMP ON GROUND 1 With the bucket raised clear of the hole slowly back up and pivot the loader rearward about the front wheels This will swing the loader away from the trench and the bucket to the side to dump e Keep loads close to the ground while transporting BACKHOE OPERATION continued SAFETY FIRST READ AND UNDERSTAND THE SAFETY INSTRUCTIONS pages 2 5 of this manual BEFORE BEGINNING ANY BACKHOE OPERATION DANGER Failure to obey the following procedures will result in death or serious injury e Avoid contacting overhead wires and underground pipes or cables Failure to heed may result in electrocution or explosion WARNING Failure to obey the following procedures could result in death or serious injury Never lift this product e above the operator s eye level OR e toa height where visibility is obstructed whichever is lower Use caution when raising loaded bucket Objects could fall from bucket toward bystanders or operator TO CUT A SHALLOW TRENCH 1 With the loader arms partially raised and the bucket cylinder partially extended slowly curl the dipperstick toward the loader using the loader s tilt control The loader arms may need to be lowered or raised to allow the bucket to penetrate the soil 2 When the bucket is positioned at the desired depth slowly back up the loader keeping the
23. w 3 8 x 2 1 2 14 3 RHW7203 Grade 5 Lock Nut 3 8 16 1 Contact FFC to obtain the correct item Hydraulic Relief Valve 17 1 RHW8618 Hose Spring 18 1 RHW8613 Weld Plate 7 8 OD 19 1 RHW8616 Hose Cradle 7 8 OD 20 1 RHW8614 Cover Plate 7 8 OD 21 1 RHW1112 Grade 5 Hex Head Cap Screw 5 16 x 2 1 2 22 1 RHW1101 Grade 5 Hex Head Cap Screw 5 16 x 1 23 1 RHW6102 Grade 5 Lock Washer 5 16 24 1 RHW8098 Grade 2 Fender Washer 5 16 x 1 1 2 08 thick NOTE All parts are the same as the LAF2303 except for those parts numbered under the other model HYDRAULIC CYLINDER ILLUSTRATION LAF4562 A Uj Za b ee YY Y NUMBERS FROM HYDRAULIC CYLINDER ILLUSTRATION LAF4562 ITEM QTY PART DESCRIPTION 1 1 LAF4612 Barrel 3 Tube Assembly 2 1 LAF4611 Shaft 1 3 4 Shaft Assembly 3 1 LAF4610 Head 3 4 1 LAF4609 Piston 3 5 1 LAF4608 Nut Grade 8 1 1 8 12 tpi 6 1 LAF4607 Seal Kit includes all seals o rings etc 7 3 RHW8090 Grease Zerk 14 28 tpi self tapping 12 SUPPLEMENTAL IMPORTANT Failure to install a Relief Cartridge as specified below CAN result in damage to the power unit and WILL void all FFC Attachments warranties NEW HOLLAND LOADERS INSTALL RELIEF CARTRIDGE NEW HOLLAND PART 86529091 IN BUCKET CYLINDER BASE END PORT OF CONTROL VALVE BEFORE OPERATING THE MINI HOE EARLY VERSION Gan VALVE ey
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