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SERVICE MANUAL(VALVE)

Hydraulic circuit

P : Inlet from pump

A1 & B1 : Working ports of BOOM

A2 & A2 : Working ports of SWING

A3 & B3 : Working ports of OUT TRIGGER

A4 & B4 : Working ports of OUT TRIGGER

A5 & B5 : Working ports of DIPPER

A6 & B6 : Working ports of BUCKET

C : Carry-over port

T : Tank port

Содержание 30139708

Страница 1: ...R MANUAL PO Box 70 Battleboro NC 27809 Tel 252 984 0700 Fax 252 984 0701 www lstractor com www lstractorusa com INNOVATIVE TECHNOLOGY PARTNER MBH1370A LB1300 TRACTOR Model MT225S P NO PM LB1300 REVISI...

Страница 2: ...khoe Code Bucket Option MT225S 30139708 9 30141213 12 30141914 16 30144229 Thumb 40450910 Dirt pad 40370235 Street pad 2ea 40396857 Street pad 4ea 40393894 LS BACKHOE OPERATOR MANUAL SERVICE MANUAL Mo...

Страница 3: ...ct use those brands and grades of lubricating oils lubricants or fuel and spare parts officially approved by LS Mtron The LS Mtron backhoes shall have been used in accordance with the procedures speci...

Страница 4: ...ment review this manual and all safety messages contained within This safety symbol indicates important safety messages in this manual When you see this symbol carefully read the message that follows...

Страница 5: ...orque tightening chart 39 Parts lustrations 40 IMBH10 Sub frame group 41 IMBH20 Main frame group 42 IMBH30 Swing frame group 47 IMBH40 Boom group 48 IMBH50 Bucket Dipperstick group 49 IMBH61 Hydraulic...

Страница 6: ...not permit others to ride on your tractor Only one person the operator should be on the machine when it is in operation Before leaving the tractor stop the engine put all controls in neutral engage t...

Страница 7: ...achment should be transported in a low position at slow ground speeds Make turns slowly and use the tractor brakes cautiously A loaded attachment in the raised position alters the center of gravity lo...

Страница 8: ...afety decals 1 Keep safety decals clean and free of obstructing material 2 Clean safety decals with soap and water and dry with a soft cloth 3 If a component with a safety decal s affixed is replaced...

Страница 9: ...7 SAFETY DECALS 40358868 40417542 40417545 40417547 40417543 40717544 40358874 40358875...

Страница 10: ...8 SAFETY DECALS 40358876 40358812 40358878 40410884 40410879 40436070...

Страница 11: ...ht Without bucket 390 kg 860 lb Bucket digging force 1 367 kg 3 013 lb Dipper stick digging force 760 kg 1 675 lb Operating pressure 155 Kgf cm2 152 bar Bucket Option 305 mm 12 in Cylinder Bore DIA Re...

Страница 12: ...ety equipment that is recommended to ensure safe operation of tractor and backhoe Refer to the safety precautions section of this manual for information concerning safety consult your dealer for furth...

Страница 13: ...maintenance Adhere to recommendation in your Tractor operator s manual concerning hydraulic fluid and filter specifications and change intervals The tractor must be equipped with an approved ROPS syst...

Страница 14: ...re off the ground Position vehicle so that the backhoe is as near to the pile as possible and in such a direction as to minimize the amount of tractor turning required to dump Keep the unit clean and...

Страница 15: ...etracted position when the backhoe is not in use to guard against rust and contamination which may cause damage to the cylinder rods or hydraulic system Also lock the swing and boom while tractor is m...

Страница 16: ...r fully forward into the detent position allows the boom to float In the float position the boom can drift up or down without pressure Move the left hand outer control lever to the left boom swings to...

Страница 17: ...oom location always When raising an arm Dipper stick with bucket rolled forward material can spill onto non target area causing injury to assistant or damage other objects Caution Do not dig near stab...

Страница 18: ...mponents safely 1 REAR PLATE CP LH 1EA 2 FRAME CP LH 1EA 3 REAR PLATE CP LH 1EA 4 FRAME CP RH 1EA 5 BOLT M16x50L 4EA 6 SPRLNG WASHER M16 12EA 7 NUT M16 4EA 8 BOLT M12x40L 4EA 9 SPRLNG WASHER M12 8EA 1...

Страница 19: ...o 94N m 70lb ft M16x50L bolts 5 M16 spring washers 6 M16 plain washers 14 M16L nuts 7 Torque to 234N m 173lb ft 3 Install the left hand Frame CP LH mount on the left hand tractor frame secure with M12...

Страница 20: ...hand Frame CP LH mount on the left hand tractor frame secure with M12x55L bolts 10 M12 spring washers 9 Torque to 94N m 70lb ft M14x55L bolts 11 M14 spring washers 12 Torque to 151N m 111lb ft M16x40L...

Страница 21: ...4 Assemble the O ring nipple 4 40426819 Assemble the swivel elbow nipple 5 40417721 by 45 degrees T Line 5 Assemble the banjo adapter 6 40426819 by crossing it with the swivel elbow nipple 5 40417721...

Страница 22: ...om the pipe 2 No pipe 2 is used 2 Wrap the sealing tape on the pipe 1 and assemble the Quick coupler 2 and yellow cap to the pipe 1 supplied by the remote control valve kit 3 Remove the Q coupler 1 on...

Страница 23: ...o Part no Part name Quantity Remarks 1 40428802 Spacer FR 2 L 17 mm 2 40428803 Spacer RR 2 L 14 mm 3 40237348 M8 Wrenches bolt 4 4 Reversible seat bracket 1 Tool list No Tool name 1 17 mm Wrench 2 14...

Страница 24: ...22 TRACTOR SEAT MOUNTING Product overview The reversible seat kit 1 consists of a reversible seat and seat bracket...

Страница 25: ...on machine on a firm level surface turn off the engine remove the ignition key secure the machine Wheels chocked disconnect the wiring Unless instructed otherwise Failure to comply could result in dea...

Страница 26: ...s or fingers between parts Use Personal Protective Equipment PPE as indicated into this manual including protective goggles gloves and safety footwear Failure to comply could result in death or seriou...

Страница 27: ...semble the seat harness 1 of the previously disassembled seat 2 4 Assemble the seat cushion with the four M8 bolts 1 and the four spacers 2 Note Reversible seat assy 5 Assemble the reversible seat ass...

Страница 28: ...ng pin It must be used to lock the seat linkage frame in backward seat direction warning Avoid injury Handle all parts carefully Do not place your hands and fingers between seat bracket linkage Use pe...

Страница 29: ...at in backward position Failure to comply it may cause damage or cut off on the safety electric wire harness inside seat bracket assy 6 When returning the seat back to forward position following the a...

Страница 30: ...actor to backhoe storage place Step 2 Use the inner two levers to lower the stabilizers until they contact to the ground Use the boom and dipper stick control lever to raise the boom dipper stick comp...

Страница 31: ...hydraulic hoses Caution Remove the backhoe on firm level ground Also do not allow the other person in the area Caution Be careful to avoid injury during removal of the backhoe Caution The hydraulic o...

Страница 32: ...oe parallel to sub frame assembly until the couplers on the backhoe hoses can connect with the hose kit hydraulic couplers or tractor auxiliary couplers located rear of the tractor Then put the couple...

Страница 33: ...e s operator s manual for safety precautions and tractor preparations Step 5 Make the holes aligned by using control lever and lock with the pins Step 6 Raise the boom and stabilizers from the ground...

Страница 34: ...aulic lines hoses connections Check for leaks wear Daily 10 hours Boom dipper stick swing and Bucket cylinder rod packings Check for seepage service as needed Daily 10 hours Pivot pin bolts and dust c...

Страница 35: ...maintenance chart for quick reference to maintenance operations Caution Do not operate the backhoe if the fittings are leaking or if the hoses are damaged A sudden line burst could cause the boom dip...

Страница 36: ...ired Quick disconnect coupler s are not fully connected or Flow check Check coupler connections Replace coupler s if necessary Hydraulic hose or tube line blockage Check for evidence of damage to hose...

Страница 37: ...Hoses tube line kinked or pinched Check hoses and tube lines for evidence of restriction Boom dipper stick or bucket cylinder piston assembly leakage Check cylinders for leakage Repair as needed Reli...

Страница 38: ...leakage Note A gradual drop over an extended period of time is a normal condition Control valve internal leakage Replace control valve and recheck Control valve spool s will not return to centered po...

Страница 39: ...perator s manual for service recommendations Hydraulic hose restriction Check for evidence of restriction in hydraulic hoses Hydraulic pump defective Refer to Tractor operator s manual for recommended...

Страница 40: ...38 HYDRAULIC SYSTEM SCHEMATIC...

Страница 41: ...16 110 149 170 230 240 325 3 4 1 1 8 192 261 297 403 420 569 7 8 1 5 16 306 416 474 642 669 907 1 1 1 2 467 634 722 979 1020 1383 Metric hardware Metric Metric Grade 8 8 Grade 10 9 Diameter thread pi...

Страница 42: ...e shipping address Instructions 1 Group name Detail classification name for parts 2 Section name Classification name for parts 3 Components The components of an assembly are identified by a bracket 4...

Страница 43: ...PLATE CP RH ASL 1 40437901 BH70CC0280 4 40428211 FRAME CP RH 1 5 40160234 SPRING WASHER M12 8 6 40160716 BOLT 10 9T M12x40L 4 7 40432612 BOLT 10 9T M12x55L 4 8 40160717 BOLT 10 9T M12x45L 6 9 40160235...

Страница 44: ...1 5 40427932 BOOM CYLINDER 65x 35x605LxST375 1 6 BOOM HIGH ASSY 1 7 40427946 DIPPER CYLINDER 65x 35x595LxST330 1 8 40427949 BUCKET CYLINDER 60x 35x514LxST310 1 9 BUCKET ASSEMBLY 12 STD 1 10 40427956...

Страница 45: ...43 IMBH20 MAIN FRAME GROUP...

Страница 46: ...40427494 MANUAL CASE 1 16 40427495 STOPPER 60 2 17 40427496 SPACER 17 3x2 3t 2 18 40427497 PIN 2 19 40427498 PIN 2 20 40427499 PIN 2 21 40417726 PLAIN WASHER M6 2 22 40417727 SPRING WASHER M6 2 23 40...

Страница 47: ...45 IMBH20 MAIN FRAME GROUP...

Страница 48: ...No LS PART NO DESCRIPTION QTY REMARKS 40 40427906 DU BUSH 25x 28x20L 4 41 40381844 SNAP RING 20 2 42 40427907 PLAIN WASHER M20 2 43 40427908 SPRING 1 5x 22 5x40L 2 44 40431558 LEVER 2 45 40431559 LEV...

Страница 49: ...x206L 1 3 40427911 PIN 2 4 40427912 PIN 1 5 40427913 PIN 1 6 40427914 SHIM 8t 1 7 40427915 PIN 28 1 8 40427916 BOLT M8x55L 2 9 40426911 LOCK NUT M8 2 10 40381517 BOLT 10 9T M10x25L 3 11 40381862 PLAIN...

Страница 50: ...R ASSY 1 1 40427927 BOOM LOWER 1 2 40427928 PIN 2 3 40427929 PIN 1 4 40427930 HOSE CLAMP HIGH 4t 1 5 40381867 SPRING WASHER M8 1 6 40427931 BOLT M8x30L 1 7 40381517 BOLT M10x25L 3 8 40381862 PLAIN WAS...

Страница 51: ...49 IMBH50 BUCKET DIPPERSTICK GROUP...

Страница 52: ...G 28 1 11 40381518 BOLT 10 9T M10x30L 1 12 40381804 LOCK NUT M10 1 13 40427949 BUCKET CYLINDER 1 14 30141213 BUCKET BACKHOE 9 IN 1 Option 14 30141914 BUCKET BACKHOE 12 IN 1 14 30144229 BUCKET BACKHOE...

Страница 53: ...51 IMBH61 HYDRAULIC LINE GROUP...

Страница 54: ...16 x2 UNF9 16 x2 3 2 12 40427971 HOSE ASSY 1 4 x1W Bx500L UNF9 16 x904 UNF9 16 x4 2 13 40427972 HOSE ASSY 1 4 x1W Bx750L UNF9 16 x904 UNF9 16 x904 2 14 40427973 HOSE ASSY 1 4 x1W Bx1250L UNF9 16 x904...

Страница 55: ...53 IMBH62 HYDRAULIC CONTROL FITTING GROUP...

Страница 56: ...6 x2 UNF9 16 x2 3 2 12 40427971 HOSE ASSY 1 4 x1W Bx500L UNF9 16 x904 UNF9 16 x4 2 13 40427972 HOSE ASSY 1 4 x1W Bx750L UNF9 16 x904 UNF9 16 x904 2 14 40427973 HOSE ASSY 1 4 x1W Bx1250L UNF9 16 x904 U...

Страница 57: ...TION QTY REMARKS 1 8 40427949 BUCKET CYLINDER 1 1 40427950 TUBE ASSY 1 2 40427951 ROD ASSY 1 3 40393857 CAP 60x 35 1 4 40393864 DU BUSH 35x 39x20L 1 5 40427487 PISTON 60x 35 1 6 40381805 NUT 20x1 5 1...

Страница 58: ...432001 SEAL KIT 1 1 40393867 U PACKING 60x 45x9 2 2 40393866 WEARING 60x 55x15 1 3 40393868 O RING 21 1 4 40393861 O RING 35 1 5 40393859 O RING 50 1 6 40393858 O RING 60 1 7 40393863 U PACKING 35x 45...

Страница 59: ...RKS 1 9 40427946 DIPPER CYLINDER 1 1 40427947 TUBE ASSY 1 2 40427948 ROD ASSY 1 3 40427935 CAP 65x 35 1 4 40393864 DU BUSH 35x 39x20L 1 5 40427939 PISTON 65x 35 1 6 40381805 NUT M20x1 5 1 7 40427938 D...

Страница 60: ...40432002 SEAL KIT 1 1 40427941 U PACKING 65x 50x10 2 2 40427940 WEARING 65x 60x15 1 3 40393868 O RING 21 1 4 40393861 O RING 35 1 5 40427937 O RING 55 1 6 40427936 O RING 65 1 7 40393863 U PACKING 35x...

Страница 61: ...ION QTY REMARKS 1 8 40427932 BOOM CYLINDER 1 1 40427933 TUBE ASSY 1 2 40427934 ROD ASSY 1 3 40427935 CAP 65x 35 1 4 40393864 DU BUSH 35x 39x20L 1 5 40427939 PISTON 65x 35 1 6 40381805 NUT M20x1 5 1 7...

Страница 62: ...32002 SEAL KIT 1 1 40427941 U PACKING 65x 50x10 2 2 40427940 WEARING 65x 60x15 1 3 40393868 O RING 21 1 4 40393861 O RING 35 1 5 40427937 O RING 55 1 6 40427936 O RING 65 1 7 40393863 U PACKING 35x 45...

Страница 63: ...TION QTY REMARKS 1 8 40427920 SWING CYLINDER 1 1 40427921 TUBE ASSY 1 2 40427922 ROD ASSY 1 3 40427923 CAP 60x 25 1 4 40427433 DU BUSH 25x 29x20L 1 5 40427926 PISTON 60x 25 1 6 40381805 NUT M20x1 5 1...

Страница 64: ...432003 SEAL KIT 1 1 40393867 U PACKING 60x 45x9 2 2 40393866 WEARING 60x 55x15 1 3 40381806 O RING 18 1 4 40427427 O RING 25 1 5 40393859 O RING 50 1 6 40393858 O RING 60 1 7 40427432 U PACKING 25x 33...

Страница 65: ...TION QTY REMARKS 1 8 40427484 STABILIZER CYLINDER 1 1 40427485 TUBE ASSY 1 2 40427486 ROD ASSY 1 3 40393857 CAP 60x 35 1 4 40393864 DU BUSH 35x 39x20L 1 5 40427487 PISTON 60x 35 1 6 40381805 NUT M20x1...

Страница 66: ...40432001 SEAL KIT 1 1 40393867 U PACKING 60x 45x9 2 2 40393866 WEARING 60x 55x15 1 3 40393868 O RING 21 1 4 40393861 O RING 35 1 5 40393859 O RING 50 1 6 40393858 O RING 60 1 7 40393863 U PACKING 35x...

Страница 67: ...0 THUMB KIT LB1300 1 1 40450911 STAND TOP 1 2 40450912 STAND LOWER 1 3 40450913 THUMB 1 4 40426906 PIN 25 1 5 40450914 PIN 25 1 6 40426908 PIN 25 1 7 40426909 PIN 19 1 8 40426910 SHIM 39x 25 5x14L 1 9...

Страница 68: ...91 OPTION 2 DIRT PAD No LS PART NO DESCRIPTION QTY REMARKS 1 4 40370235 DIRT PAD BACKHOE TSL 1 1 40369556 DIRT PAD 2 2 40051006 BOLT 12 3 40029549 WASHER SPR S36110013 12 4 40028171 WASHER PLN S364100...

Страница 69: ...67 IMBH92 OPTION 3 STREET PAD No LS PART NO DESCRIPTION QTY REMARKS 1 3 40396857 STREET PAD KIT 1 1 40394936 STREET PAD 2 2 40228644 WASHER SPRING M16 4 3 40228638 HEX NUT M16 2 0P 4...

Страница 70: ...68 IMBH93 OPTION 4 STREET PAD No LS PART NO DESCRIPTION QTY REMARKS 1 3 40393894 STREET PAD KIT 1 1 4039493 6 STREET PAD 4 2 40228644 WASHER SPRING M16 8 3 40228638 HEX NUT M16 2 0P 8...

Страница 71: ...69 IMG980 DECAL GROUP Caution Read and refer to the Tractor operation manual or decals on the tractor And backhoe decals on as shown Refer to category Safety decals Manual 18...

Страница 72: ...0417543 DECAL WARNING 1 6 40358812 DECAL LS 1 7 40358867 DECAL DANGER 2 8 40410879 NAME PLATE 1 9 40358874 DECAL WARNING 1 10 40358876 INSPECTION 1 11 40358865 DECAL WARNING 1 13 40417545 DECAL WARNIN...

Страница 73: ...Bucket 6 Boom cylinder 11 Stabilizer cylinder 2 Bucket cylinder 7 Swing frame 12 Main control lever 3 Dipper stick 8 Swing cylinder 13 Stabilizer control lever 4 Dipper stick cylinder 9 Main frame an...

Страница 74: ...linder 1 Remove the pins 5 6 and remove the rod bucket and link LH RH 2 Disconnect the hydraulic hoses 3 and remove the pin 4 and remove the bucket cylinder 2 3 Remove the pin 10 and remove the Dipper...

Страница 75: ...m 6 Pin 28x121L 2 Dipper cylinder 7 Pin 28x183L 3 Boom cylinder 4 Hydraulic hose 5 Pin 28x170L Note 1 A1 port Boom cylinder 2 A2 port Swing cylinder 3 A3 port Stabilizer cylinder LH 4 A4 port Stabiliz...

Страница 76: ...ing frame 1 Remove the pin 6 and remove the swing cylinder rod 3 2 Remove the pins 4 5 3 Remove the swing frame 1 from main frame 2 1 Swing frame 2 Main frame 3 Swing cylinder rod 4 Pin 45x100L 5 Pin...

Страница 77: ...1 from main frame 1 Swing cylinder 2 Hydraulic hose 3 Pin 20x105L Stabilizers and stabilizer cylinder 1 Disconnect the hydraulic hose 2 and remove the Pins 4 5 6 7 2 Remove the stabilizer cylinder 3...

Страница 78: ...yd Bucket cylinder 1 Nut 2 Piston 3 Cylinder tube 4 Cylinder head 5 Piston rod Bucket cylinder consists of a nut 1 piston 2 cylinder tube 3 cylinder head 4 piston rod 5 and other parts as shown in the...

Страница 79: ...lled by hyd Swing cylinder 1 Nut 2 Piston 3 Cylinder tube 4 Cylinder head 5 Piston rod Swing cylinder consists of a nut 1 piston 2 cylinder tube 3 cylinder head 4 piston rod 5 and other parts as shown...

Страница 80: ...f a nut 1 piston 2 cylinder tube 3 cylinder head 4 piston rod 5 and other parts as shown in the figure above They are single rod double acting cylinder in which the reciprocating motion of the piston...

Страница 81: ...cylinder tube not to damage the O ring on the cylinder head Cylinder head piston and nut 1 Secure the piston rod end in a vise 2 Remove the nut 4 and remove the piston 3 and cylinder head 2 from the...

Страница 82: ...s from 15 to 75cSt Minimum 12mm s 12cSt Maximum 400mm s 400cSt Max level of contamination 19 16 ISO 4406 Ambient temperature With mechanical pneumatic and hydraulic devices from 40 to 60 C With electr...

Страница 83: ...lubricating and transmitting power This is a vital factor in a hydraulic system and must be select through the assistance of a qualified supplier choosing the correct oil ensures long lasting satisfac...

Страница 84: ...a solvent to remove Contaminating particles To reduce fluid resistance and the possibility of leaks use the fewest number of fittings necessary for proper installation Minimize the number of bends use...

Страница 85: ...ow in all operations Main relief valve pressure may be less than design pressure Check the main relief valve pressure and set as specified in the drawing Main relief valve pressure may have leakage Ch...

Страница 86: ...84 SERVICE MANUAL VALVE Measurement data...

Страница 87: ...uit P Inlet from pump A1 B1 Working ports of BOOM A2 A2 Working ports of SWING A3 B3 Working ports of OUT TRIGGER A4 B4 Working ports of OUT TRIGGER A5 B5 Working ports of DIPPER A6 B6 Working ports o...

Страница 88: ...in body 1 2 Assemble the component kit VR5 5 with torque 24 3 Plug 1 Assemble this component metal plug 1 at corresponding port on the body No Description Q ty Wrench Torque 1 End cap kit S5 ZAMA 6 4...

Страница 89: ...assemble the component spring body 1 with torque 42Nm 5 Spool NO LS PART NO Description Q ty Remarks 1 Spool 1CEX SD5 5 2 40453121 Spool 1CSVR SD5 1 With check function 1 Insert component spool 1 CEX...

Страница 90: ...2 Insert the component fulcro LCN 3 at corresponding hole on the body Warning LCN3 Verify the 3 surface of component as below picture 3 is right direction you re looking 3 Assemble the components bolt...

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