Kubota LA844 Front End Loader OEM Service & Repair Manual

LA844, WSM SAFETY INSTRUCTIONS SAFETY FIRST This symbol, the industry's "Safety Alert Symbol", is used throughout this manual and on labels on the machine itself to warn of the possibility of personal injury. Read these instructions carefully. It is essential that you read the instructions and safety regulations before you attempt to repair or use this unit. A DANGER : Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. A WARNING : Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. A CAUTION : Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. • IMPORTANT : Indicates that equipment or property damage could result if instructions are not followed. • NOTE : Gives helpful information . BEFORE SERVICING AND REPAIRING • Read all instructions and safety instructions in this manual and on your engine safety decals. • Clean the work area and engine. • Park the machine on a firm and level ground. • Allow the engine to cool before proceeding. • Stop the engine, and remove the key. • Disconnect the battery negative cable. • Hang a ''~O NOT OPERATE" tag in operator station. 1

LA844, WSM SAFETY INSTRUCTIONS SAFETY STARTING • Do not start the engine by shorting across starter terminals or bypassing the safety start switch. • Unauthorized modifications to the engine may impair the function and lor safety and affect engine life. SAFETY WORKING • Do not work on the machine while under the influence of alcohol, medication, or other substances or while fatigued. • Wear close fitting clothing and safety equipment appropriate to the job. • Use tools appropriate to the work. Makeshift tools, parts, and procedures are not recommended. • When servicing is performed together by two or more persons, take care to perform all work safely. • Do not touch the rotating or hot parts while the engine is running. • Never remove the radiator cap while the engine is running, or immediately after stopping. Otherwise, hot water will spout out from radiator. Only remove radiator cap when cool enough to touch with bare hands. Slowly loosen the cap to first stop to relieve pressure before removing completely. • Escaping fluid (fuel or hydraulic oil) under pressure can penetrate the skin causing serious injury. Relieve pressure before disconnecting hydraulic or fuel lines. Tighten all connections before applying pressure. • Wear a suitable hearing protective device such as earmuffs or earplugs to protect against objectionable or uncomfortable loud noises. • Do not open high-pressure fuel system. High-pressure fluid remaining in fuel lines can cause serious injury. Do not disconnect or attempt to repair fuel lines, sensors, or any other components between the high-pressure fuel pump and injectors on engines with high pressure common rail fuel system. • High voltage exceeding 100 V is generated in the ECU, and is applied to the injector. Pay sufficient caution to electric shock when performing work activities. 2

LA844, WSM SAFETY INSTRUCTIONS • + - AVOID FIRES • Fuel is extremely flammable and explosive under certain conditions. Do not smoke or allow flames or sparks in your working area . • To avoid sparks from an accidental short circuit, always disconnect the battery negative cable first and connect it last. • Battery gas can explode. Keep sparks and open flame away from the top of battery. especially when charging the battery. • Make sure that no fuel has been spilled on the engine. VENTILA"rE WORK AREA • If the engine must be running to do some work, make sure the area is well ventilated. Never run the engine in a closed area. The exhaust gas contains poisonous carbon monoxide. PREVENT ACID BURNS • Sulfuric acid in battery electrolyte is poisonous. It is strong enough to burn skin, clothing and cause blindness if splashed into eyes. Keep electrolyte away from eyes, hands and clothing. If you spill electrolyte on yourself, flush with water, and get medical attention immediately. DISPOSE OF FLUIDS PROPERLY • Do not pour fluids into the ground. down a drain, or into a stream, pond, or lake. Observe relevant environmental protection regulations when disposing of oil, fuel. coolant, electrolyte and other harmful waste. 3

LA844, WSM SAFETY INSTRUCTIONS PREPARE FOR EMERGENCIES • Keep a first aid kit and fire extinguisher handy at al/ times. • Keep emergency numbers for doctors, ambulance service, hospital and fire department near your telephone. 4

lAB44, WSM SAFETY INSTRUCTIONS SAFETY DECALS I I The following safety decals are installed on the machine. If a decal becomes damaged, illegible or is not on the machine, replace it. The decal part number is listed in the parts list. (1) Part No. 7J246-5643-1 (2) Part NO.7J246·564 1-1 (3) Part No. 7J266-5649-2 (4) Part No. 7J246-5642-1 A DANGER A DANGER I ACAUTION I TO AVOID INJURY FROM CRUSHING 1 Do not ut,hIe lhe valve ock for machine m3m:enance or repa!f 2 "he valve lOCK IS to prevent aC:::loen'al actuat on when !mp!r:men: '5 net In use c~ dunng transpJrl lAIABACAP077A (5) Part No. 7J246-5645-1 (6) Part NO.7J246-5644·2 (Both sides) AWARNING 3UFAAAPCP001A 5

LA844, WSM SAFETY INSTRUCTIONS If quick hitch is equipped: (1) Part No. 7Ja02-364a-4 AD '.:'. '. 1AIABAAAP11 I!A If bale spear or pallet fork is equipped: (2) Part No. 7J246-5643-1 (3) Part NO.7J266-3923-2 . :' .- .. : (2) (3) ADANGER PALLET FORK RATED CAPACITY 1.A853. LA864 1300 lBS. LA723. LAT24 1000 lBS. lA513.lA514. TlIOO 800 lBS. TO AVOID PERSONAL INJURY OR DEATH CAUSED BY ROLLOVER • Do not exceed rated load Ii sled above. 'Use rcar Implement and \i,e ballast recommended In loader operator's manual. 'Operate tractor slowly taking special care when turn mg . CARE OF DANGER, WARNING AND CAUTION LABELS 1. Keep danger, warning and caution labels clean and free from obstructing material. 2. Clean danger, warning and caution labels with soap and water, dry with a soft cloth. 3. Replace damaged or missing danger, warning and caution labels with new. 4. If a component with danger, warning and caution label(s) affixed is replaced with new part, make sure new label(s) is (are) attached in the same location(s) as the replaced component. 5. Mount new danger, warning and caution labels by applying on a clean dry surface and pressing any bubbles to outside edge. 3UFAAAPCP002A 6

LA844, WSM LOADER TERMINOLOGY LOADER TERMINOLOGY (8) 3UFAAAPDP001A (1) Hydraulic Control Lever (3) Mounting Pin (5) Boom Cylinder (7) Bucket Cylinder (2) Side Frame (4) Main Frame (6) Boom (8) Bucket 7

LA844, WSM SPECIFICATIONS SPECIFICATIONS • Suitable Tractor Loader Model LA844 Tractor Model MX51 00 W1029088 [1] LOADER SPECIFICATIONS Loader Model LA844 Tractor Model MX5100 Wheel Base 1895 mm (74.6 In.) Front Tires 9.5 - 16 Rear Tires 14.9 - 26 Boom Cylinder Bore 60.0 mm (2.36 in.) Stroke 496 mm (19.5 In.) Bucket Cylinder Bore 55.0 mm (2.17 in.) Stroke 469 mm (18.5 In.) Control Valve 3-positlon bucket control type One Detent Float Position. Regenerative Bucket Dump. Power Beyond Circuit Rated Flow 35.8 Umin. 9.5 U.S.gals/min. 7.87 Imp.gals/min. Maximum Pressure 18.1 MPa 185 kgf/cm 2 2630 psi Net Weight (Approximate) 600 kg (1322Ibs) 8

LA844, WSM SPECIFICATIONS [2] BUCKET SPECIFICATIONS ! Loader Model LA844 Model Square 72" Round 72" HD ! Type Rigid Rigid Width 1830 mm (72 in.) Depth (L) 547mm (21.5 in.) 477mm (18.8 in.) Height (M) 570mm (22.4 in.) 608mm (23.9 in.) Length (N) 652mm (25.7 in.) 630mm (24.8 in.) capacity Struck 0.31 m 3 (10.9 cu.fI) Heaped 0.37 m 3 (13.1 cu.fI) Weight 146 kg (322Ibs) 164 kg (362Ibs) Loader Model LA844 Model Square 72" Round 72" HD Square 72" light Material Type Quick attach Width 1830 mm (72 in.) Depth (L) 547mm (21.5 in.) 477 mm (18.8 in.) 607mm (23.9 in.) Height (M) 570mm (22.4 in.) 608mm (23.9 in.) 570mm (22.4 in.) Length (N) 630mm (24.8 in.) 610mm (24 in.) 691 mm (27.2 in.) Capacity Struck 0.31 m 3 (10.9 cu.fI) 0.36 m 3 (12.7 cu.ft) Heaped 0.37 m 3 (13.1 cu.ft) 0.45 m 3 (16.0 cu.ft) Weight 150 kg (331 Ibs) 180 kg (397Ibs) 136 kg (300 Ibs) L Y\ M .... N 3UFAAABDP002A Wl013973 Wl030480 9

LA844, WSM SPECIFICATIONS [3] DIMENSIONAL AND OPERATIONAL SPECIFICATIONS 3UFAAABDP003A a: 500 mm (19.7 in.) • Dimensional Specifications ~ U v B A ~X C W X J 'lZ. G y Z Loader Model LA844 Tractor Model MX51 00 A Maximum lift height (To bucket pivot pin) 2813 mm (110.7 in.) B Maximum lift height under level bucket 2609 mm (102.7 in.) C Clearance with bucket dumped 2208 mm (86.9 in.) D Reach at maximum lift height (Dumping reach) 664 mm (26.1 in.) E ! Maximum dump angle 47 deg. F Reach with bucket on ground 1937 mm (76.3 in.) G Bucket roll·back angle 43 deg. H Digging depth 228 mm (9.0 in.) J Overall height in carry position 1405 mm (55.3 in.) W1013674 • Operational Specifications Loader Model LA844 Tractor Model MX51 00 Lift capacity to maximum height (Bucket bottom mid point) 850 kg (1874 Ibs) U Lift capacity to maximum height at bucket pivot pin 1108 kg (2443Ibs) V Lift capacity to maximum height at 500 mm (19.7 in.) forward 840 kg (1852 Ibs) W Lift capacity to 1.5 m (59 in.) height at bucket pivot pin 1388 kg (3060 Ibs) X Lift capacity to 1.5 m (59 in.) height at 500 mm (19.7 in.) fo rward 1124 kg (2476Ibs) y Breakout force at bucket pivot pin 18584 N (4178 Ibf) Z Breakout force at 500 mm (19.7 in.) forward 14504 N (3261 Ibf) VV Bucket roll·back force at Maximum height 12415 N (2791 Ibf) XX Bucket roll·back force at 1.5 m (59 in.) lift height 18897 N (4248Ibf) ZZ Bucket roll·back force at ground level 19554 N (4396Ibf) Raising time 4.4 sec. Lowering time 3.0 sec. Bucket dumping time 1.9 sec. Bucket roll·back time 2.4 sec. WI 034685 10

Kubota LA844 Front End Loader OEM Service & Repair Manual

You're Reading a Preview

Recently Viewed