XCMG XC8-C2570 Service Manual

Backhoe loader

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Service Manual

XC8-C2570

Backhoe Loader

Xuzhou Construction Machinery Group Co., Ltd.

Version 1.0

04.2024

Page 1 / 630

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Page 1 Service Manual XC8-C2570 Backhoe Loader Xuzhou Construction Machinery Group Co., Ltd. Version 1.0 04.2024 Page 1 / 630...
Page 2 BHL XC8-C2570 Service Manual 04.2024 Page 1 / 630 Find manuals at https://best-manuals.com...
Page 3 BHL XC8-C2570 Service Manual Introduction This Service Manual is designed for the benefit of XCMG Distributor Service Engineers or authorized specialists who are receiving, or have received, training by XCMG Technical Training Department. These personal should have s sound knowledge of workshop, safe procedures, and general techniques associated with the maintenance and repair of backhoe loaders.
Page 4: Table Of Contents
BHL XC8-C2570 Service Manual Table of Content Table of Content......................Foreword........................How to read and use this manual................Lifting instructions....................Safety..........................Safety signs......................Safety precautions....................Daily safety......................Operation safety....................Maintenance safety....................General information....................Machinery structure..................... Main technical parameters of machinery............
Page 5 BHL XC8-C2570 Service Manual 液压系统原理...................... 工作液压系统...................... 转向液压系统...................... Braking system......................Service brake...................... Parking brake...................... Work devices......................Loading work devices..................9.1.1 基本组成....................51 9.1.2 装载端油缸的拆卸与更换..............51 9.1.3 装载端的润滑..................52 9.1.4 安全杆的拆卸与安装................54 Backhoe work devices..................9.2.1 基本组成....................56 9.2.2 挖臂的拆卸与更换.................56 9.2.3 斗杆的拆卸与更换.................58 9.2.4 回转体的拆卸与更换................60 9.2.5 挖掘工作装置润滑点................61 10 Electric system......................
Page 6 BHL XC8-C2570 Service Manual 11.1.6.2 Backhoe Control levers..................11.1.6.3 Stabilizer Control Levers..................11.1.6.4 Hand throttle Knob....................11.2 Removal and replacement of side console............11.3 Removal and replacement of front console............12 Air condition system....................12.1 General instruction.................... 12.1.1 General instruction................100 12.1.2 Technical specification................100...
Page 7 Preface This Maintenance Manual is prepared to help maintenance personnel understand the structural principle and functions of each system (component) of the machine, guide them to correctly diagnose and eliminate machine faults according to the fault symptoms of the machine, and provide maintenance standards for the machine under general and special environmental conditions, so as to improve the repair quality and level.
Page 8 common faults in power system, powertrain system, hydraulic system, electrical system, air conditioning system and other systems. Power System briefly outlines the engine structure and functions, engine testing and adjustment, radiator installation and removal sequence to provide technical reference for diagnosing and troubleshooting machine faults; Powertrain System mainly introduces the structural composition, functional principle and maintenance precautions of transmission system;...
Page 9 Cab System mainly introduces the instruments and control elements in the cab, as well as removal and installation methods and precautions. Air Conditioning System mainly introduces the working principle, operation and use, installation, commissioning and maintenance of air conditioning system. Covering Parts System mainly includes the removal and installation of engine hood.
Page 10: How To Read And Use This Manual
When the manual is modified, the version number (1, 2, 3 ...) is indicated at the bottom of the back cover page. 5. Any supplement or change information will be transmitted to XCMG dealer, and you should ask for the latest technical change data from the dealer before starting work.
Page 11: Lifting Instructions
Table 01-01: Symbols Symb Item Notes Special safety preventive measures must be taken at Safety work. Special technical preventive measures or the Caution preventive measures of other maintenance standards must be taken at work. Weight of part or system. Weight Attention must be paid to the selection of lifting ropes and the determination of operating posture.
Page 12 Diameter of steel wire rope (mm) Allowable load (t) 10.0 18.0 28.0 40.0 Note: The allowable load in the above table is estimated according to 1/6~1/7 of the breaking strength of steel wire rope. 2. Hang the steel wire rope in the middle of the hook. When hanging, if the steel wire rope is close to the hook edge, it will slide out of the hook and cause serious safety accidents.
Page 13 1 - 5...
Page 14: Safety
Safety Safety signs There are many safety signs in this Manual and on the machine. At the beginning of each safety sign, there is an obvious warning word with the following meanings: Danger It indicates an extremely dangerous condition which, if proper preventive measures are not taken, is highly likely to cause death or permanent injury to you or others.
Page 15: Daily Safety
Keep all labels legible. Replace illegible missing labels with new ones. Each label is printed with a part number, which is used to purchase new labels from the XCMG dealer. Warning Keep alert Always be careful and vigilant when working on the machine to avoid danger.
Page 16: Operation Safety
2.4 Operation Safety Warning Status of machine A faulty machine may hurt people. Do not use a machine with faults or missing parts. Ensure that the machine is maintained according to the requirements of this Manual before use. Warning Control lever Pulling the control lever from outside the cab will cause serious personal injury or death to you or others.
Page 17 Breathing in machine exhaust is harmful or even fatal to you. When operating the machine in a confined space, ensure good ventilation. If possible, add an extension pipe to the exhaust pipe. If you begin to feel drowsy, stop the machine immediately and get some fresh air out of the cab.
Page 18: Maintenance Safety
Warning Modification and welding Unauthorized modifications can cause damage to the machine or personal injury. Contact your XCMG dealer before modifying the machine Warning Metal fragments When installing and removing the metal pin, flying debris may hurt people. Therefore, be sure to use a hammer or punch with low surface hardness and wear safety goggles during installation and removal.
Page 19 Warning Battery gas Explosive gases can escape from the battery. Keep the battery away from fire and sparks. Do not smoke near the battery. Ensure that there is a good ventilation environment near the place where the battery is used and charged. Do not check the battery charging by metal short circuit, but use a hydrometer and voltmeter.
Page 20 Oil is poisonous. If you have swallowed any oil, do not attempt to vomit it out, please seek medical treatment. Used engine oil contains toxic pollutants, which can cause skin cancer. Do not dispose of the used engine oil too much. Always use skin cream and wear gloves to prevent contact between the skin and oil.
Page 21 Caution O-rings, seals and gaskets Improper installation, as well as damage or corrosion of O-rings, seals and gaskets will lead to leakage and accidents. Unless otherwise specified, replace the defective parts. Do not use trichloroethane and paint thinner near O-rings and seals. Warning Live If your machine is provided with a fire extinguisher, check it regularly.
Page 22 Warning Lifted machine It is prohibited to stand or place any part of your body under a lifted machine that is not properly supported. If the machine is moved inadvertently, you may be hit and seriously injured or killed. Caution The anticorrosive coating waxoyl contains a turpentine substitute, which is flammable.
Page 23: General Information
General information Machinery structure Item Description Item Description Loader bucket Lift arm Backhoe bucket Cylinder, bucket Hydraulic oil tank Cylinder, lift Stabilizer Main frame Fuel tank Swing frame Boom 1 - 15...
Page 24: Main Technical Parameters Of Machinery
Main technical parameters of machinery Overall dimensions Code Item Unit Parameter Overall length 7340 Shovel width 2350 Overall height 3437 Cab roof height 2868 Wheelbase 2180 Front axle clearance Front wheel width 2207 Rear wheel width 2279 Steering dimensions Item Unit Parameter(unbrake Parameter(braked)
Page 25: Loader And Backhoe Dimensions
Loader and backhoe dimensions Loader dimensions: Code Item Unit Parameter Dig depth Roll back at ground ° Dump height 2776 Reach at full height fully dumped Dump angle ° Max. Operating height 4366 Loader hinge pin height 3495 Backhoe dimensions: Code Item Unit...
Page 26: Performance
3.621 Aspiration —— Turbocharged Compression Ratio —— 17:1 Driving performance Item Unit Parameter Model —— MYF110 Manufacturer —— XCMG Transmission Type —— Power shift Gear Selection —— Power shift Model —— A1092(Ⅲ) manufacturer —— XCMG Front Axle Static load rating...
Page 27: Fluid Recommended And Fill Capacity
Manufacturer —— HENGLI Type —— Variable Flow, Axial Piston Max. pump L/min capacity Loader System Backhoe pressure Steering Fluid recommended and fill capacity Use listed below or equivalent only. Do not mix different brand oils. Ambient temperature ℃ / °F Capacity Service Kind of...
Page 28 -10# -20# -35# Diesel 166(36.5 Fuel tank fuel NLGI No.1 Grease Grease fitting required NLGI No.2 Add antifreeze Cooling 12.5(2.75 Coolant (50% antifreeze-50% distilled water) system Mobil 424 Transmis Gearbox 15(3.3) sion oil Adblue(32.5%) DEF tank 19(4.18) (1).Engine oil should be used according to the following specification: API CJ-4; API CK-4;...
Page 29: Bolt Tightening Torques
30° C (86° F) to 35° C (95° F) 6 months Above 35° C (95° F) test quality before use Bolt tightening torques Size of Torque [Nm] Size of inner socket Bolt Size hexagonal 10.9 wrench wrench mm class class ——...
Page 30: Front Axle
intake filter Fixing bolts of transmission M16*120 vibration isolating rubber gasket Fixing bolts of flywheel housing of M10*30 engine and transmission Fixing bolts of front M14*1.5*45 4 cardon shaft and front axle Fixing bolts of rear M20*240 axle Fixing nuts of front M18*1.5 380~450 wheel...
Page 31: Power System
Faults Troubleshooting Power system Trouble Cause Solution Gear is not in neutral Check and operate to positon neutral positon Broken fuse Replace the fuse The ignition switch is Check and replace damaged Check and charge or Engine is not Trouble of battery replace responding when start Trouble of starting relay...
Page 32 Connect XCMG distributor Trouble in engine or engine distributor Blockage of fuel filter Repair or replace Low temperature of coolant Check or replace thermostat Popping noises, of Water, dirt or air exists in Drain the air from fuel engine running or fuel system system, and clean fuel tank.
Page 33 Trouble of thermostat Trouble of thermostat Off-time of injection pump Other reasons Connect XCMG distributor Damage of water or engine distributor temperature sensor Damage of silicon oil clutch or its controller Damage of engine cable Wrong engine oil Drain the oil, and adopt the correct oil.
Page 34 Operation of the alternator Check and repair or regulator Trouble of the charging Check and clean or repair circuit Connect XCMG distributor Other reasons or engine distributor Incorrect installation of Nox Check and reinstall sensors Diagnostic trouble code Exhaust leak between the...
Page 35 Connect XCMG distributor Other reasons or engine distributor Low DEF level in DEF tank Check and refill Trouble of DEF gauge Check and repair Diagnostic trouble code Loose or disconnect of the Check and repair 1761-1 or 1761-17 or electrical connect...
Page 36 Ensure the specification of 3715-31 or 3719-16 or Use of high sulphur fuel fuel and replace 3719-0 for diesel particulate filter collect Connect XCMG distributor Other reasons execssive soot or engine distributor Leak of exhaust between the turbocharge and the...
Page 37 Check and clean supply and return lines Trouble of keyswitch Check and repair Trouble of engine Check and repair speed/timing sensors Connect XCMG distributor Other reasons or engine distributor Restart the engine if Diagnostic trouble code Normal operation necessary 593-31 or 594-0 or 594-...
Page 38 Check and clean supply and return lines Wrong Fuel or its quality Check and replace Trouble of water separator Check and replace Connect XCMG distributor Other reasons or engine distributor Mounts or brackets are Check and fasten or replace loose or broken...
Page 39 Check and replace Check and use water Air in fuel separator to drain air from fuel Connect XCMG distributor Other reasons or engine distributor Fuel level in the tank is low Check and refill Fuel tank is close to a heat...
Page 40 Operate the engine at High altitude reduced speed or reduced power Connect XCMG distributor Other reasons or engine distributor Incorrect installation or Check and reinstall loose of the NOX sensors The DEF quality is poor...
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