Hyundai Robex 250LC-9, Service Manual

Page 1: ...Robex 250LC 9 CRAWLER EXCAVATOR SERVICE MANUAL...

Page 2: ...47 9 Recommended Oils 50 SECTION 2 STRUCTURE AND FUNCTION 51 Group 1 Pump Device 52 1 Structure 52 2 Function 58 Group 2 Main Control Valve 71 1 Structure 71 2 Hydraulic Circuit 74 3 Function 75 Grou...

Page 3: ...ion 164 7 Swing Operation 165 8 Travel Forward And Reverse Operation 167 Group 5 Combined Operation 169 1 Outline 169 2 Combined Swing And Boom Up Operation 170 3 Combined Swing And Arm Operation 171...

Page 4: ...Group 8 Variable Power Control System 241 Group 9 Attachment Flow Control System 242 Group 10 Anti restart System 243 1 Anti restart Function 243 Group 11 Self diagnostic System 244 3 Machine Error C...

Page 5: ...ondition 322 13 When Starting Switch On Does Not Operate 323 14 When Starting Switch Is Turned On Wiper Motor Does Not Operate 324 15 When Starting Switch Is Turned On Head Lamp Does Not Lights Up 325...

Page 6: ...Work 395 Group 2 Tightening Torque 396 1 Major Components 396 2 Torque Chart 397 Group 3 Pump Device 399 1 Removal And Install 399 2 Main Pump 1 2 401 3 Regulator 411 Group 4 Main Control Valve 422 1...

Page 7: ...ket Cylinder 557 1 Removal And Install 557 2 Disassembly And Assembly 563 Group 10 Undercarriage 574 1 Track Link 574 2 Carrier Roller 575 3 Track Roller 576 4 Idler And Recoil Spring 577 Group 11 Wor...

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

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 1 kg 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...

Page 14: ...1266 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...

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: ...uel tank Battery box Engine Radiator Turning joint Oil cooler Main control valve Swing motor Bucket Tooth Cab Boom cylinder Boom Arm cylinder Arm Muffler Counterweight Bucket cylinder Side cutter Conn...

Page 27: ...tructure width D 2840 9 4 Overall height of cab E 2990 9 10 Ground clearance of counterweight F 1115 3 8 Engine cover height G 2427 7 12 Minimum ground clearance H 480 1 7 Rear end distance I 2870 9 5...

Page 28: ...Track shoe width standard Travel speed low high Swing speed Gradeability Ground pressure 600 mm shoe Max traction force kg lb m3 yd3 km hr mph rpm Degree kgf cm2 psi kg lb 25100 55300 1 08 1 41 9920...

Page 29: ...width standard Travel speed low high Swing speed Gradeability Ground pressure 600 mm shoe Max traction force kg lb m3 yd3 mm ft in km hr mph rpm Degree kgf cm2 psi kg lb 27450 60520 1 08 1 41 9760 32...

Page 30: ...20 10 6420 mm 21 1 6630 mm 21 9 6860 mm 22 6 Min swing radius F 4420 mm 14 6 4200 mm 13 9 3980 mm 13 1 3900 mm 12 10 Bucket digging force SAE 154 167 2 kN 154 167 2 kN 154 167 2 kN 154 167 2 kN 15700...

Page 31: ...rm SAE ISO SAE ISO 25092SP09 R250LC 9 HIGH WALKER R250LC 9 HIGH WALKER 5 85 m 19 2 BOOM 2 2 154 167 2 15700 17080 34610 37580 175 5 190 6 17900 19430 39460 42840 134 4 145 9 13700 14870 30200 32790 13...

Page 32: ...standard triple grouser shoe Front attachment assembly 5 85 m boom 3 05 m arm 1 08 m3 SAE heaped bucket 5 85 m boom assembly 3 05 m arm assembly 1 08 m3 SAE heaped bucket Boom cylinder assembly Arm cy...

Page 33: ...Track roller Track chain assembly 600 mm standard triple grouser shoe Front attachment assembly 5 85 m boom 3 05 m arm 1 08 m3 SAE heaped bucket 5 85 m boom assembly 3 05 m arm assembly 1 08 m3 SAE he...

Page 34: ...m 20 ft 7 5 m 25 ft Capacity Reach m ft 6 0 m kg 5790 5790 5220 3200 8 32 20 ft lb 12760 12760 11510 7050 27 3 4 5 m kg 7810 7810 6510 5570 6000 3690 4520 2710 8 91 15 ft lb 17220 17220 14350 12280 1...

Page 35: ...16800 6 0 m kg 3700 3700 4400 2660 9 22 20 ft lb 8160 8160 9700 5860 30 2 4 5 m kg 5350 5350 5060 3830 3880 2280 9 74 15 ft lb 11790 11790 11160 8440 8550 5030 32 0 3 0 m kg 13640 13640 8400 8400 6540...

Page 36: ...2610 9960 8040 7260 5040 5790 3430 4210 2430 3260 1820 10 46 5 ft lb 27800 27800 21960 17730 16010 11110 12760 7560 9280 5360 7190 4010 34 3 1 5 m kg 9010 9010 13200 13200 12900 7090 7830 4470 5430 31...

Page 37: ...ty Reach m ft 6 0 m kg 5790 5290 5200 2870 8 32 20 ft lb 12760 11660 11460 6330 27 3 4 5 m kg 7810 7810 6510 5030 6000 3310 4500 2410 8 91 15 ft lb 17220 17220 14350 11090 13230 7300 9920 5310 29 2 3...

Page 38: ...14900 6 0 m kg 3700 3570 4380 2370 9 22 20 ft lb 8160 7870 9660 5220 30 2 4 5 m kg 5350 5230 5060 3440 3860 2020 9 74 15 ft lb 11790 11530 11160 7580 8510 4450 32 0 3 0 m kg 13640 13640 8400 7780 6540...

Page 39: ...12610 9960 7160 7260 4510 5760 3060 4180 2130 3240 1580 10 46 5 ft lb 27800 27800 21960 15790 16010 9940 12700 6750 9220 4700 7140 3480 34 3 1 5 m kg 9010 9010 13200 12560 12890 6250 7790 3950 5400 27...

Page 40: ...15 ft 6 0 m 20 ft 7 5 m 25 ft Capacity Reach m ft 6 0 m kg 5910 5910 5290 3780 8 49 20 ft lb 13030 13030 11660 8330 27 9 4 5 m kg 8350 8350 6750 6680 6080 4530 5310 3310 9 00 15 ft lb 18410 18410 1488...

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