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FOREWORD

FOREWORD

1.  STRUCTURE

1.  STRUCTURE

This service manual has been prepared as an aid to improve the quality of repairs by giving the 
serviceman an accurate understanding of the product and by showing him the correct way to 
perform repairs and make judgements.   Make sure you understand the contents of this manual and 
use it to full effect at every opportunity.
This service manual mainly contains the necessary technical information for operations performed in 
a service workshop.
For ease of understanding, the manual is divided into the following sections.

SECTION 1  GENERAL

SECTION 1  GENERAL
This section explains the safety hints and gives the specification of the machine and major 
components.

SECTION 2  STRUCTURE AND FUNCTION

SECTION 2  STRUCTURE AND FUNCTION
This section explains the structure and function of each component.   It serves not only to give an 
understanding of the structure, but also serves as reference material for troubleshooting.

SECTION 3  HYDRAULIC SYSTEM

SECTION 3  HYDRAULIC SYSTEM
This section explains the hydraulic circuit, single and combined operation.

SECTION 4  ELECTRICAL SYSTEM

SECTION 4  ELECTRICAL SYSTEM
This section explains the electrical circuit, monitoring system and each component.   It serves not 
only to give an understanding electrical system, but also serves as reference material for trouble 
shooting.

SECTION 5  MECHATRONICS SYSTEM

SECTION 5  MECHATRONICS SYSTEM
This section explains the computer aided power optimization system and each component.

SECTION 6  TROUBLESHOOTING

SECTION 6  TROUBLESHOOTING
This section explains the troubleshooting charts correlating problems

problems to causes

causes.

SECTION 7  MAINTENANCE STANDARD

SECTION 7  MAINTENANCE STANDARD
This section gives the judgement standards when inspecting disassembled parts.

SECTION 8  DISASSEMBLY AND ASSEMBLY

SECTION 8  DISASSEMBLY AND ASSEMBLY
This section explains the order to be followed when removing, installing, disassembling or 
assembling each component, as well as precautions to be taken for these operations.

SECTION 9  COMPONENT MOUNTING TORQUE

SECTION 9  COMPONENT MOUNTING TORQUE
This section shows bolt specifications and standard torque values needed when mounting 
components to the machine.

The specifications contained in this shop manual are subject to change at any time and without any 
advance notice.   Contact your HYUNDAI distributor for the latest information.

Find manuals at https://best-manuals.com

Summary of Contents for Robex R145CR-9

Page 1: ...Robex 145CR 9 CRAWLER EXCAVATOR SERVICE MANUAL...

Page 2: ...SECTION 2 STRUCTURE AND FUNCTION 44 Group 1 Pump Device 45 1 Structure 45 2 Function 51 Group 2 Main Control Valve 64 1 Structure 64 2 Hydraulic Circuit 66 3 Function 67 Group 3 Swing Device 91 1 Str...

Page 3: ...everse Operation 149 Group 5 Combined Operation 151 1 Outline 151 2 Combined Swing And Boom Up Operation 152 3 Combined Swing And Arm Operation 153 4 Combined Swing And Bucket Operation 154 5 Combined...

Page 4: ...em 222 Group 10 Anti restart System 223 1 Anti restart Function 223 Group 11 Self diagnostic System 224 3 Machine Error Codes Table 225 4 Engine Fault Code 228 Group 12 Engine Control System 230 1 Mcu...

Page 5: ...ensor 315 10 Malfunction Of Negative 2 Pressure Sensor 317 11 Malfunction Of Swing Pressure Sensor 319 12 Malfunction Of Arm In out Bucket In Pressure Sensor 321 13 Malfunction Of Boom Up Pressure Sen...

Page 6: ...y And Assembly Of Reduction Gear 424 Group 6 Travel Device 432 1 Removal And Install 432 2 Travel Motor 433 3 Disassembly 437 4 Reassembly 449 Group 7 Rcv Lever 460 1 Removal And Install 460 2 Disasse...

Page 7: ...ounting 2 518 Group 4 Hydraulic System 519 1 Hydraulic Components Mounting 1 519 2 Hydraulic Components Mounting 2 520 3 Hydraulic Components Mounting 3 521 Group 5 Undercarriage 522 Group 6 Structure...

Page 8: ...EM SECTION 4 ELECTRICAL SYSTEM This section explains the electrical circuit monitoring system and each component It serves not only to give an understanding electrical system but also serves as refere...

Page 9: ...t up to date information before you start any work Filing method Filing method See the page number on the bottom of the page File the pages in correct order Following examples shows how to read the pa...

Page 10: ...ove the decimal point one place to the left to convert it to 55mm Carry out the same procedure as above to convert 55mm to 2 165 inches The original value 550mm was divided by 10 so multiply 2 165 inc...

Page 11: ...3 425 3 465 3 504 90 3 543 3 583 3 622 3 661 3 701 3 740 3 780 3 819 3 858 3 898 Kilogram to Pound Kilogram to Pound 1kg 2 2046lb 0 1 2 3 4 5 6 7 8 9 0 2 20 4 41 6 61 8 82 11 02 13 23 15 43 17 64 19...

Page 12: ...455 22 719 22 983 23 247 23 511 90 23 775 24 040 24 304 24 568 24 832 25 096 25 631 25 625 25 889 26 153 Liter to U K Gallon Liter to U K Gallon 1 0 21997 U K Gal 0 1 2 3 4 5 6 7 8 9 0 0 220 0 440 0...

Page 13: ...8 622 0 629 3 636 5 643 7 90 651 0 658 2 665 4 672 7 679 9 687 1 694 4 701 6 708 8 716 1 100 723 3 730 5 737 8 745 0 752 2 759 5 766 7 773 9 781 2 788 4 110 795 6 802 9 810 1 817 3 824 6 831 8 839 0 8...

Page 14: ...266 90 1280 1294 1309 1323 1337 1351 1365 1380 1394 1408 100 1422 1437 1451 1465 1479 1493 1508 1522 1536 1550 110 1565 1579 1593 1607 1621 1636 1650 1664 1678 1693 120 1707 1721 1735 1749 1764 1778 1...

Page 15: ...1 0 32 2 90 194 0 26 1 15 5 0 6 7 20 68 0 12 8 55 131 0 32 2 90 194 0 25 6 14 6 8 6 1 21 69 8 13 3 56 132 8 32 8 91 195 8 25 0 13 8 6 5 6 22 71 6 13 9 57 134 6 33 3 92 197 6 24 4 12 10 4 5 0 23 73 4 1...

Page 16: ...SECTION 1 GENERAL SECTION 1 GENERAL Group 1 Safety Hints 1 1 Group 2 Specifications 1 10...

Page 17: ...e excavator attach a Do Not Operate Do Not Operate tag on the right side control lever USE HANDHOLDS AND STEPS USE HANDHOLDS AND STEPS Falling is one of the major causes of personal injury When you ge...

Page 18: ...Wear goggles or safety glasses PROTECT AGAINST NOISE PROTECT AGAINST NOISE Prolonged exposure to loud noise can cause impairment or loss of hearing Wear a suitable hearing protective device such as e...

Page 19: ...vator starts to move Use a signal person when moving swinging or operating the machine in congested areas Coordinate hand signals before starting the excavator OPERATE ONLY FORM OPERATOR S SEAT OPERAT...

Page 20: ...YSTEM SAFELY Explosive release of fluids from pressurized cooling system can cause serious burns Shut off engine Only remove filler cap when cool enough to touch with bare hands HANDLE FLUIDS SAFELY A...

Page 21: ...ide or in a well ventilated area Dispose of paint and solvent properly Remove paint before welding or heating If you sand or grind paint avoid breathing the dust Wear an approved respirator If you use...

Page 22: ...serious injury To prevent accidents use care when working around rotating parts AVOID HIGH PRESSURE FLUIDS AVOID HIGH PRESSURE FLUIDS Escaping fluid under pressure can penetrate the skin causing serio...

Page 23: ...e materials Pressurized lines can be accidentally cut when heat goes beyond the immediate flame area Install fire resisting guards to protect hoses or other materials PREVENT BATTERY EXPLOSIONS PREVEN...

Page 24: ...lime to help neutralize the acid 3 Flush your eyes with water for 10 15 minutes Get medical attention immediate ly If acid is swallowed 1 Drink large amounts of water or milk 2 Then drink milk of mag...

Page 25: ...m DO NOT pour oil into the ground down a drain or into a stream pond or lake Observe relevant environmental protection regulations when disposing of oil fuel coolant brake fluid filters batteries and...

Page 26: ...ight Muffler Cab Boom cylinder Boom Arm cylinder Arm Track Bucket cylinder Side cutter Control link Control rod Track roller Idler Carrier roller Dozer blade cylinder Dozer blade Fuel tank Hydraulic t...

Page 27: ...2860 9 5 Superstructure width D 2500 8 2 Overall height of cab E 2900 9 6 Ground clearance of counterweight F 930 3 1 Engine cover height G 2065 6 9 Minimum ground clearance H 440 1 5 Rear end distanc...

Page 28: ...counterweight F 930 3 1 Engine cover height G 2065 6 9 Minimum ground clearance H 440 1 5 Rear end distance I 1480 4 10 Rear end swing radius I 1480 4 10 Distance between tumblers J 2910 9 7 Undercarr...

Page 29: ...ructure width D 2500 8 2 Overall height of cab E 2900 9 6 Ground clearance of counterweight F 930 3 1 Engine cover height G 2065 6 9 Minimum ground clearance H 440 1 5 Rear end distance I 1480 4 10 Re...

Page 30: ...30 mm 31 11 Max dumping height E 6350 mm 20 10 6470 mm 21 3 6850 mm 22 6 7230 mm 23 9 Min swing radius F 1860 mm 6 1 2030 mm 6 8 1980 mm 6 6 2260 mm 7 5 Bucket digging force SAE 87 3 94 8 kN 87 3 94 8...

Page 31: ...d assembly 1480 3260 1640 3620 1820 4010 Swing bearing 215 470 Travel motor assembly 240 530 Turning joint 50 110 Track recoil spring 105 230 Idler 125 280 Carrier roller 20 45 Track roller 35 80 Trac...

Page 32: ...8480 5380 4640 2810 2870 1730 1780 1030 7 90 5 0 ft lb 18700 11860 10230 6190 6330 3810 3920 2270 25 9 Ground kg 9050 4920 4390 2590 2750 1630 1850 1060 7 67 Line lb 19950 10850 9680 5710 6060 3590 40...

Page 33: ...430 1180 1680 960 8 27 10 0 ft lb 8140 8140 8140 6990 6680 4140 3150 2600 3700 2120 27 1 1 5 m kg 7740 5620 4720 2880 2890 1750 1950 1130 1610 910 8 36 5 0 ft lb 17060 12390 10410 6350 6370 3860 4300...

Page 34: ...e ROBEX series does not exceed 75 of tipping load with the machine on firm level ground or 87 of full hydraulic capacity 3 The load point is a hook located on the back of the bucket 4 indicates load l...

Page 35: ...900 1040 7 90 5 0 ft lb 18700 11950 10870 6260 6700 3860 4190 2290 25 9 Ground kg 9170 4970 4680 2620 2930 1650 1970 1080 7 67 Line lb 20220 10960 10320 5780 6460 3640 4340 2380 25 2 1 5 m kg 5850 585...

Page 36: ...city Width Weight Recommendation 4 6 m 15 1 boom SAE heaped CECE heaped Without side cutter With side cutter 1 9 m arm 6 3 2 1 m arm 6 11 2 5 m arm 8 2 3 0 m arm 9 10 0 23 m3 0 30 yd3 0 20 m3 0 26 yd3...

Page 37: ...r less Applicable for materials with density of 1600 kgf m3 2700 lbf yd3 or less Applicable for materials with density of 1100 kgf m3 1850 lbf yd3 or less Capacity Width Weight Recommendation 4 6 m 15...

Page 38: ...0 28 Operating weight kg lb 14600 32190 14790 32610 15020 33110 Ground pressure kgf cm2 psi 0 46 6 54 0 39 5 55 0 34 4 83 Overall width mm ft in 2500 8 2 2600 8 6 2700 8 10 R145CRD 9 Shoe width mm in...

Page 39: ...d pressure Application of wider shoes than recommendations will cause unexpected problem such as bending of shoes crack of link breakage of pin loosening of shoe bolts and the other various problems 4...

Page 40: ...ression ratio 16 5 1 Rated gross horse power SAE J1995 119 Hp 89 kW at 2000 rpm Maximum torque 45 4 kgf m 328 lbf ft at 1700 rpm Engine oil quantity 17 5 4 6 U S gal Dry weight 420 kg 930 lb High idli...

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