Case L780 Operator's Manual
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Case L780 Operator's Manual

Case L780 Operator's Manual

For mx magnum series tractors
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L780 Loaders for
MX MAGNUM Series Tractors
Operator's Manual
87753767
12/07
1st Printing

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  • Page 1 L780 Loaders for MX MAGNUM Series Tractors Operator’s Manual 87753767 12/07 1st Printing...
  • Page 2 The L780 loader was designed to mount on Case IH MX MAGNUM series tractors. The loader is designed to load and move materials with a variety of buckets and approved Case IH attachments.

  • Page 3: Lubrication And Maintenance

    CONTENTS SAFETY ............GENERAL INFORMATION .
  • Page 4 FEDERAL EMISSIONS WARRANTY (North America Only) (California owner’s emissions warranty is covered elsewhere) CNH UK Ltd warrants that your new 1996 and later heavy-duty off-road diesel engine was designed, built, and equipped to conform to applicable U.S. Environmental Protection Agency regulations for a period of use of five years or 3,000 hours of operation, whichever occurs first.
  • Page 5 CALIFORNIA EMISSION CONTROL WARRANTY STATEMENT (North America Only) (California Only) Your Warranty Rights and Obligations The California Air Resources Board and CNH UK LTD are pleased to explain the emission control system warranty on your engine. In California, new 2004 and later heavy-duty off-road engines from 50 to 750 HP must be designed, built and equipped to meet the State’s stringent anti-smog standards.
  • Page 6 CALIFORNIA Proposition 65 Warning Diesel engine exhaust and some of its constituents are known to the State of California to cause cancer, birth defects, and other reproductive harm. Battery posts, terminals and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

  • Page 7: Machine Safety

    PRECAUTIONARY STATEMENTS PERSONAL SAFETY Throughout this manual and on machine decals, you will find precautionary statements (“DANGER”, “WARNING”, and “CAUTION”) followed by specific instructions. These precautions are intended for the personal safety of you and those working with you. Please take the time to read them. DANGER This word “DANGER”...

  • Page 8: Operating The Loader

    SAFETY PRECAUTIONARY STATEMENTS A careful operator is the best operator. Most accidents can be avoided by observing certain precautions. To help prevent accidents, read the following precautions before operating this equipment. Equipment should be operated only by those who are responsible and instructed to do so. Carefully review the procedures given in this manual with all operators.
  • Page 9 IMMEDIATELY to avoid components or functions without first the onset of Gangrene consulting a Case IH dealer. Contact your dealer with questions about the loader. 4. DO NOT tamper with or change the relief valve settings. The relief valve is preset at the 3.
  • Page 10 SAFETY INSTRUCTIONS GENERAL INFORMATION Operator safety is one of the most important matters when a new loader is designed. The designer builds in as many safety functions as practical. However, accidents still occur which could have been avoided by a few seconds of reflection and more careful operation of the machine.
  • Page 11 Safety Alert Symbol When you see the safety alert symbol and signal word on decals and in this book, you MUST follow the instruction because it relates to your personal safety. DANGER Indicates a imminently hazardous situation that, if not avoided, will result in DEATH OR SERIOUS INJURY.
  • Page 12 Symbol Explanation A. Electric shock. Get to know the site and the ground. Be aware of free working heights and the limitations related to the increased range. B. Overturning risk. The tractor can overturn and result in personal injury. C. Fall risk. Do not use the loader or the bucket as working platforms. D.
  • Page 13 DO NOT use the loader or the attachment as a working platform. DO NOT use the loader to lift or transport people. Roll Over Protective Structure The tractor must be equipped with a roll--over protective structure (ROPS) -- frame or cab. WARNING Use the loader only on a tractor with the ROPS installed.
  • Page 14 TRANSPORTING ON PUBLIC ROADWAY When driving the machine on the road or highway, at night or during the day, while carrying or transporting loads, warning devices may not be visible. If this happens, make sure additional marking devices are used. Always lower the loader as far as possible to give •...
  • Page 15 Get to know the site and the ground. Be aware of free working heights and the limitations related to the increased range. KEEP THE LOADER PROPERLY MAINTAINED DO NOT operate a machine that is defective or • has missing parts. Make sure all recommended maintenance procedures are completed before operating the machine.
  • Page 16 Check that the bucket or other attachment is correctly installed on the mount and that the pins are in the locked position. Press the tip of the attachment against the ground, 1, to check that the attachment is firmly fixed, 2. 0152-a Only operate the machine when sitting in the Operator’s seat.
  • Page 17 MACHINE STABILITY Always watch the bucket position. Objects can fall or roll backwards onto the operator when the loader is raised. Only lift loads that can be contained by the attachment. Use the correct attachment for the task. 0113a DO NOT work on or close to steep slopes. The distance from the edge of bank must be equal to, or more than the height of the bank.
  • Page 18 Reduce speed before turning to avoid a roll--over. Keep speed at a minimum. • Avoid sudden uphill turns on steep slopes. • Always keep the tractor transmission in gear for • engine braking when going downhill. Do not coast. Use the same gear as to go uphill. Keep the loader as low as possible when •...
  • Page 19 The loader is equipped with a shut--off valve above the control valve on the right of the loader. This should be moved to the “closed” position during service work, or when the loader is left in the lifted position for any length of time for other reasons. WARNING This shut- -off must NOT be used during work on the loader’s hydraulic cylinders or associated...
  • Page 20 LOCATION OF SAFETY DECALS 0-19...
  • Page 21 LOCATION OF ATTACHMENT SAFETY DECALS 1. Safety sign (11133569) on H. D. Bale Grip 2. Safety sign (11133567) on H. D. Bale Grip 3. Safety sign (11133566) on H. D. Bale Grip 0-20...
  • Page 22 ECOLOGY AND THE ENVIRONMENT Soil, air, and water are vital factors of agriculture and 3. Modern oils contain additives. Do not burn life in general. When legislation does not yet rule the contaminated fuels and or waste oils in ordinary treatment of some of the substances which are heating systems.
  • Page 23 UNIVERSAL SYMBOLS As a guide to the operation of your tractor, various universal symbols have been utilized on the instruments, con- trols, switches, and fuse box. The symbols are shown below with an indication of their meaning. Thermostart Position Radio P.T.O.
  • Page 24 SECTION 1 GENERAL INFORMATION This manual describes the operation and mainte- nance for “L” 700 series mechanical self--leveling and non leveling agricultural loaders. The informa- tion in this manual was correct on the date of publication. If you do not understand an item in this manual, see your dealer.
  • Page 25 SECTION 1 - GENERAL INFORMATION IDENTIFICATION Model and Product Identification Number Each loader has a product identification number plate, 1, with a unique number printed on it. The sign is placed on the inside of the left arm, above the cross tube.
  • Page 26 SECTION 1 - GENERAL INFORMATION Cylinders, valves, control cables and hoses are also equipped with machine signs or punched/printed order numbers. 0160a When control cables are ordered, please specify the length (L) and make of valve (control valve). 0160b...
  • Page 27 SECTION 1 - GENERAL INFORMATION ALIGNMENT REFERENCE Control Valve Valve intended for lifting and attachment operation In this manual, references to right and left are on the loader. consistently as seen from the operator’s seat when facing forwards. Central Control Valve NOTE: Some illustrations in this manual may show Valve installed on the front of the loader, intended for a different model of tractor or loader, compared with...

  • Page 28: Operation

    SECTION 2 OPERATION TRACTOR/LOADER STABILITY Determination of Ballast WARNING Prevent personal injury due to tractor tipping or losing traction. Make sure proper ballast is fitted. The following information is according to ASAE EP562 March 2005. The following information is provided to reduce risk of machine overturning during normal operation.
  • Page 29 SECTION 2 - OPERATION Minimum Tread Settings WARNING Overturning risk. The tractor can overturn if its track is too narrow. Increase to maximum track for best stability. Tread should be set as wide as practical considering the enviroment of use. Minimum tread settings are recommended to provide static stability on a side slope of 15 degrees with loader positioned.
  • Page 30 SECTION 2 - OPERATION The control valve has a joystick--type control handle located beside the operator’s seat. The lever is connected to the hydraulic control valve via two control cables. 0136 The joystick can be locked in neutral to prevent inadvertent operation of the loader.

  • Page 31: Operation Of The Loader

    SECTION 2 - OPERATION Four hoses are connected directly between the tractor’s hydraulic system and the loader. 0130 The loader may be equipped with a third hydraulic function. A solenoid valve, 1, is then installed on the cross tube of the tractor or on the rear of the tractor. 0134 OPERATION OF THE LOADER IMPORTANT: Tractors with front axle suspension.
  • Page 32 SECTION 2 - OPERATION Loader Float Position Move the lever to the float position, 3, (does not apply to E-command, electronic control valve) and release the lever to lower the loader arm without any downward pressure. To cancel the float function, move the lever backwards somewhat (out of the float position) and release it.
  • Page 33 SECTION 2 - OPERATION 3rd Hydraulic Function The third hydraulic function is controlled by a switch or switches on the front of the control lever, 1. On tractor with loader control valve, press the loader third hydraulic function button (A) and move the hydraulic control lever to the right to open the grapple, on units equipped with electric diverter valve system.
  • Page 34 SECTION 2 - OPERATION Lift the loader up onto the subframe. Holes for attaching the lifting hooks are found on the inside of the tie plates. Make sure that the lock handle on Quick Lock is pulled out and rests on the heel. When the bearing box passes the stop, the Quick Lock system will lock the loader to the subframe.
  • Page 35 SECTION 2 - OPERATION REMOVING LOADER FROM TRACTOR WARNING Prevent personal injury due to loader falling. Install a bucket on loader before removing loader from tractor. IMPORTANT: If loader is equipped with an attachment with a third hydraulic function that is operated with a tractor auxiliary hydraulic circuit, disconnect hoses before removing loader from tractor.
  • Page 36 SECTION 2 - OPERATION Pull out lock handle (E) to unlock the lock pin and turn until the lock handle rests against the base stop (one on each side). CAUTION Pinch risk. The locking wheel is spring loaded. Handle carefully. Release the brakes.
  • Page 37 SECTION 2 - OPERATION RE-INSTALLING LOADER ON TRACTOR CAUTION Air in hydraulic lines and cylinders may cause erratic operation until air is removed from system. Operate all controls carefully with slow engine speed. CAUTION Keep hands and feet away from moving parts. NOT use fingers to check component or hole pin alignment.
  • Page 38 SECTION 2 - OPERATION By extending the lift cylinders, the boom connecting system will be engaged by contacting the latch bolts on the subframes. When the end of the locking pin is visible on the inside of the bearing boxes, the loader is locked in place.
  • Page 39 4. Check that the front wheels clear the loader and base during full wheel lock and oscillation of the front axle -- if this is not the case, oscillation stops or limitation of steering lock must be installed. 5. Test operate the loader, make sure that the ends of the lock pins are visible on the inside of both the left and right bearing boxes.
  • Page 40 SECTION 2 - OPERATION LOADER OPERATION DANGER Electric shock, crushing and pinch risk. When driving with the loader lifted, make sure that there is enough room between the loader and power lines, and other overhead hazards. CAUTION Crushing and pinch risk. People can be inside the working area.
  • Page 41 SECTION 2 - OPERATION Back away from stock pile, lowering loader slowly. Sudden stops when lowering bucket quickly can result in damage to loader and/or tractor’s hydraulic system. 0150 Raise loader while approaching vehicle so bucket does not strike vehicle when bucket is dumped. Release load from a low position for better loading and less spillage.
  • Page 42 SECTION 2 - OPERATION SOFT-RIDE LOADER SUSPENSION SYSTEM (OPTION) CAUTION Always lower the loader to the ground before activating/deactivating the “Soft-Ride” function. Description This option dampens the vertical movements of the loader when driving on uneven ground. It consists of one or two accumulators, depending on loader model.
  • Page 43 SECTION 2 - OPERATION REMOVE AND INSTALL BUCKET OR ATTACHMENT Remove Attachment Raise the loader off the ground and position the attachment level to the ground. Shut the engine off and lock the joystick control lever in neutral position. Apply the parking brake. 0153 Pull the bucket lever to the disengaged position (left).
  • Page 44 SECTION 2 - OPERATION Start tractor and lower the loader to the ground until the attachment disengages from the loader tool carrier. Back tractor/loader away from attachment. 0182 INSTALL ATTACHMENT Raise/lower the loader to make the base of the attachment plate about 50 mm (2 in) from the ground. Tilt the tool forwards slightly (using the bucket level indicator as a reference).
  • Page 45 SECTION 2 - OPERATION When the attachment plate contacts the attachment, raise the loader to “hook” the attachment to the plate. Roll the attachment back to engage the attachment locking system. 0171 Read this before operating loader: DANGER Always check to ensure attachment is locked in position by forcing the front of the attachment against the ground and visually inspecting that the tool carrier lever has returned to the engaged...

  • Page 46: Operation With Bale Spike Attachment

    SECTION 2 - OPERATION OPERATION WITH BALE SPIKE ATTACHMENT WARNING DO NOT move large round bales using loader unless equipped with an approved round bale attachment. Without these, the bale can fall on the operator when the loader is raised causing severe injury or death.
  • Page 47 SECTION 2 - OPERATION Tilt the bale back, lift the load carefully. Raise loader only enough for clearance under bale. Move bale slowly and carefully until ready to unload. Tilt the bale forward to level position and place bale on the ground. Carefully back unit away from bale.
  • Page 48 SECTION 2 - OPERATION OPERATION WITH GRAPPLE FORK ATTACHMENT DANGER DO NOT move large round bales using loader unless equipped with an approved round bale attachment. Without these, the bale can fall on the operator when the loader is raised causing severe injury or death.
  • Page 49 SECTION 2 - OPERATION On tractors with electronic hydraulics or original control levers, press the third hydraulic function button (See the tractor’s Operators Manual) and move the Joystick lever to the right to open the grapple. 0133 Approach bale from the side, with loader raised, grapple tines fully open, and bucket partially dumped.
  • Page 50 SECTION 2 - OPERATION Lift the load carefully, keeping the bucket level. Raise loader only enough for clearance under bale. Move bale slowly and carefully until ready to unload. IMPORTANT: Always roll back bucket if bale is to be lifted more than 152 mm (6 in) above ground level. Release bale as close to the ground as possible.
  • Page 51 SECTION 2 - OPERATION OPERATION WITH H. D. BALE GRIP Make sure backstop, 1, is installed. DANGER Prevent personal injury or death due to bale falling. Do not operate this attachment until the backstop, 1, is installed. Press the loader third hydraulic function button and move the hydraulic control lever to the right to open the arms, on units equipped with the electric diverter valve.
  • Page 52 SECTION 3 LUBRICATION AND MAINTENANCE LUBRICATION POINTS Lubricate the following grease fittings (zerks) using multi-purpose lithium-based grease, every ten (10) hours of loader operation. WARNING To prevent personal injury or death due to loader falling, support loader with a solid support when loader is raised for access to bucket pivot pin grease zerks.
  • Page 53 SECTION 3 - LUBRICATION AND MAINTENANCE Hoses and Cylinders Read this before checking hydraulic system for leaks: WARNING Oil under pressure. Prevent possible serious personal injury, blind- ness, or death caused by injection of hydraulic fluid into your body. Fluid escaping under high pressure may not be visible.
  • Page 54 Connect and Disconnect “Plug in Coupling” The Central Control Valve receives and distributes the hydraulic oil equally to each side of the loader. The quick couple connectors allow for quick hydraulic hose change in case of failure. 86064661 Disconnection 1. Remove the assembly stop.
  • Page 55 SECTION 3 - LUBRICATION AND MAINTENANCE CHECKING HYDRAULIC CONNECTIONS every 50 hours of operation. Please refer to the table below for torque values. Check that all hoses and adapters have been tightened and that they do not leak. Hardware Tightening Chart Tighten all the capscrews on the loader and Repairing Hydraulic Cylinders mounting bracket hardware to the values specifiec in...
  • Page 56 SECTION 4 TROUBLESHOOTING Faulty functioning of the loader is frequently caused until normal working temperature has been by factors not related to the loader: reached. Check that the oil is at normal working temperature before the loader is tested. Check the oil level in the tractor’s hydraulic tank. •...
  • Page 57 SECTION 4 - TROUBLESHOOTING Problem Possible cause Action Lift and/or bucket cylinders oper- Hydraulic hoses wrongly con- Connect hydraulic hoses to cor- ate in wrong direction compared nected. rect union. with lever movement Control cables for single lever Contact your dealer. control wrongly connected.
  • Page 58 SECTION 4 - TROUBLESHOOTING Problem Possible cause Action System relief valve squeals Cold hydraulic oil. Let the hydraulic oil warm up to working temperature. Too heavy load in bucket. Material Reduce the load in the bucket. weight exceeds loader’s specified capacity.
  • Page 59 SECTION 4 - TROUBLESHOOTING Problem Possible cause Action Low pump capacity Cold hydraulic oil. Let the hydraulic oil warm up to working temperature. Increase en- gine speed. Engine speed too low. Increase engine speed. Low hydraulic oil. Please refer to the tractor instruc- tion manual for service recom- mendations.
  • Page 60 SECTION 5 OPTIONAL EQUIPMENT Not all accessories fit all loaders. Please contact your dealer to ask about suitable accessories for your loader. 3rd Function 3rd hydraulic function, electrical diverter valve. Solenoid valve used for hydraulic tools. 86064661 Soft-Ride, Load Damper Reduces stresses on tractor and loader, and improves operator comfort.
  • Page 61 SECTION 5 - OPTIONAL EQUIPMENT Standard Material Buckets 63 in (160 cm), 73 in (185 cm), 83 in (210 cm), 95 in (240 cm), 102 in (260 cm) 86064664 Heavy Duty Material Buckets 73 in (185 cm), 83 in (210 cm), 95 in (240 cm), 102 in (260 cm) 86064665 Construction Tooth Buckets...
  • Page 62 SECTION 5 - OPTIONAL EQUIPMENT Light Material/Snow Buckets 79 in (200 cm), 87 in (220 cm), 95 in (240 cm), 102 in (260 cm) 86064667 Fork Lifts 38 in (160 cm), 47 in (250 cm) 86064668 Log Grap Attachment for Fork Lifts 86064669...
  • Page 63 SECTION 5 - OPTIONAL EQUIPMENT Bale Spike 86064670 Big Bale Fork 86064671 Grapple with Optional Backscreen Available with either tine floor bucket or standard floor bucket. 83 in (210 cm), 95 in (240 cm), 102 in (260 cm) 86064672...
  • Page 64 SECTION 5 - OPTIONAL EQUIPMENT Counterweight (empty) 86064673 H. D. Bale Grip 86064674 H. D. Round or Square Plastic Wrapped Bale Grip 86064660...
  • Page 65 SECTION 5 - OPTIONAL EQUIPMENT Hose Set 86064675 Weld on Hook Set 86064676...
  • Page 66 The technical data may vary, depending on the specifications apply only to the tractor specified in tractor model and implement. each example. Loader Model L780 Tractor Model Series MX MAGNUM Hydraulic Pressure 3000 psi (207 bar) Hydraulic Flow...
  • Page 67 SECTION 6 - SPECIFICATIONS Dimension Specification (inch/mm) A. Maximum lifting height to pivot pin 187 / 4750 B. Maximum lift height under level bucket 175 / 4445 C . Clearance with bucket dumped 150 / 3810 D. Reach at maximum lift height 7 / 179 E.
  • Page 68 SECTION 6 - SPECIFICATIONS DIAGRAM...
  • Page 69 SECTION 6 - SPECIFICATIONS...

  • Page 70: Table Of Contents

    INDEX Alignment Reference ..... . . Machine Stability ......0-16 Ballast Recommendation Chart .
  • Page 72 OWNER COPY PREDELIVERY REPORT L780 LOADER Delivery Date Owner’s Name Address Dealer’s Name Address Model Product Identification No. Using the operator’s manual as a guide, instruction was given as indicated by the check marks. CHECK AND ADJUST AS REQUIRED INOPERATIVE SERVICE CHECKS...
  • Page 74 DEALER COPY PREDELIVERY REPORT L780 LOADER Delivery Date Owner’s Name Address Dealer’s Name Address Model Product Identification No. Using the operator’s manual as a guide, instruction was given as indicated by the check marks. CHECK AND ADJUST AS REQUIRED INOPERATIVE SERVICE CHECKS...
  • Page 75 6-10...

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