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Zoomlion ZS1623RT Service And Maintenance Manual

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Service and Maintenance Manual
ZOOMLION
ZS1623RT
Service and Maintenance Manual
August 2020 Version A

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Summary of Contents for Zoomlion ZS1623RT

  • Page 1 Service and Maintenance Manual ZOOMLION ZS1623RT Service and Maintenance Manual August 2020 Version A...
  • Page 3 This manual should be considered a permanent part of your machine and should remain the machine at all times. Do not repair the parts marked with professional maintenance. Zoomlion AWP Machinery Company does not take the consequence for wrong maintenance.
  • Page 4 Foreword Symbols and their description: Danger indicates an imminently dangerous situation. If not avoided, will result in death or serious injury. Warning indicates a potential hazardous situation. If not avoided, will result in death or serious injury. Caution indicates a potential hazardous situation. If not avoided, will result in minor or moderate injury.
  • Page 5 Contents Foreword...........................I Content ..........................III SECTION 1 MAI NTENANCE SAFETY I NSTRUCTION ..........1-1 1.1 Maintenance Cycle Instruction ..................1-1 1.2 User Responsibility ....................1-1 1.3 Service Center Obligation.................... 1-1 1.4 Disclaimer ......................... 1-2 SECTION 2 SPECIFICATIONS ..................2-1 2.1 Operating Performance ....................2-1 2.2 Size and Performance ....................
  • Page 6 Contents 3.7.1.3 Functional test ................3-13 3.7.1.4 Battery inspection ..............3-13 3.7.1.5 Check hydraulic oil level ............3-14 3.7.1.6 Check engine oil level ..............3-14 3.7.1.7 Check engine fuel ..............3-15 3.7.1.8 Check coolant level ..............3-16 3.7.1.9 Check engine belt ..............3-16 3.7.1.10 Check axle system..............3-16 3.7.2 Maintenance every week ................3-17 3.7.2.1 Check intake system..............3-17 3.7.2.2 Check engine air filter ..............3-17...
  • Page 7 Contents 3.7.5.3 Replace engine oil and filter ............3-29 3.7.5.4 Replace fuel filter element ............3-31 3.7.5.5 V alve clearance inspection and adjustment ........3-32 3.7.5.6 Clean or replace engine air filter ..........3-32 3.7.6 Maintenance every 12 months ..............3-33 3.7.6.1 Check scissor arm wear-resistant slider .........3-33 3.7.6.2 Replace drive hub lubricantion grease...........3-33 3.7.7 Maintenance every 24 months ..............3-34 3.7.7.1 Test or replace hydraulic oil ............3-34...
  • Page 9 履带起重机操作手册 第一章 安全操作说明...
  • Page 11 Your proper maintenance is an important prerequisite for the use of the aerial work platform. Read and understand this manual before attempting to any maintenance procedure. Conduct daily and regular maintenance in accordance with the contents and requirements of this manual. Zoomlion's marketing network throughout the world will provide you with professional consulting, maintenance and repair services.
  • Page 12 1.4 Disclaimer Zoomlion does not assume any responsibility for direct or indirect losses caused by the following actions: Wrong operations or applications. Unauthorized modification and parameter adjustment of the machine. Do not use Zoomlion's original accessories and dedicated oils. Maintenance is not performed in accordance with the contents and requirements of this manual.
  • Page 13 履带起重机操作手册 第一章 安全操作说明...
  • Page 15 SECTION 2 SPECIFICATIONS 2.1 Operating Performance The operating specifications of the whole machine are shown in Table 2-1. Table 2-1 Performance Rated load 680kg 1500lbs Max travel speed (slope) Max travel speed (side slope) Max platform height 52ft 6in Travel height-lifted 29ft 6in Turning radius (inside) 2.75m...
  • Page 16 2.3 Capacity Table 2-3 Capacity Fuel tank 103L 27.2 us gal Hydraulic reservoir 105L 27.7 us gal Engine oil capacity 2.6 us gal 2.4 Components Data 2.4.1 Engine Table 2-4 V2403-M-DI-E3B-ZML-2(Kubota) Engine parameter Type HPCR Fuel No.0 National IV Engine oil capacity 2.6 us gal 1500r/min (low speed) Engine speed...
  • Page 17 2.6 Torque requirements When maintenance is needed or the fastener is loose, please determine the appropriate torque value according to the torque table 2-7 and 2-8.The bolt pre-tightening force is not marked, please follow DIN267-27. Table 2-7 Torque requirements Bolt strength level and corresponding torque value Bolt diameter 8.8 grade 10.9 grade...
  • Page 19 履带起重机操作手册 第一章 安全操作说明...
  • Page 21 SECTION 3 MAINTENANCE REQUIREMENTS 3.1 General Perform necessary oil inspection and replacement. Conduct regular inspections to ensure that components are in good condition. Require appropriate equipment for maintenance and repair, and obey relevant rules and instructions in Operator's manual. If the safety equipment is removed during maintenance, reinstall the safety equipment and inspect it immediately after the maintenance work is completed.
  • Page 22 3.2.3 Personnel safety equipment The operator must use safety equipment when operating the machine. Select suitable safety equipment such as helmets, gloves, protective goggles, safety belts, boots and hearing protection devices according to the work site conditions. Figure 3-1 Personnel safety equipment Check safety equipment before and after operation, and perform maintenance according to specified procedures or replacement if necessary.
  • Page 23 If you find any items that require immediate repair and adjustment, perform maintenance immediately. Contact local Zoomlion service center for repairing. Please use the accessories and grease specified by our company for good performance. Timely replacement of consumables, such as filter element to prevent failures due to delays.
  • Page 24 Use clean grease. The room where grease is stored should be kept clean and no dust, water, etc. should enter the container. Ensure that the grease used does not contain water. Figure 3-3 Clean grease check Use specified grease. Use the recommended grade or the same grade of oil and grease when replenishing or replacing.
  • Page 25 Never direct water or water vapour jets at electrical components and connectors! Otherwise there is a danger of electric shock! Figure 3-6 DO NOT spray water at the electric shock or joint Lubricate the steering knuckles after cleaning. Clean the control panel with warm water containing detergent only. DO NOT use corrosive cleaning agent.
  • Page 26 Welding or repairing of any components and wear-resistant parts of this unit should be conducted by trained technicians. Figure 3-7 Beware of explosion The positive and negative wires of the battery must be removed when welding to prevent the positive and negative poles of the welder from forming a loop with the machine body, thereby burning electrical components such as controllers and sensors.
  • Page 27 Prevent dust intrusion. The dismantled hydraulic tubing and hydraulics must be protected with a blockage or seal to prevent dust. Figure 3-8 Dust prevention Clean joint surface. Removing the O-ring or other gasket, clean the sealing surface and replace with a new seal. Apply a thin layer of oil to the seal when reassembling.
  • Page 28 m) Mind the high temperature part of the cooling system. If the cover of the radiator is removed while the engine coolant temperature is high, steam or hot water will be ejected, causing burns. Waiting for the temperature drop of coolant, stand in front of the radiator cover and slowly loosen the cover to release the steam, pressure before removing the cover.
  • Page 29 The Gregorian time (day, month, year) at which the machine is working and stored. Maintenance intervals of Zoomlion Scissor Lifts are generally determined by the certain running time of functional components, and the special content needs to be determined in the latter way.
  • Page 30 3.6 Maintenance Schedule Table 3-2 Maintenance Schedule Maintenance Every Every 6 Items Work Description Daily Weekly Quarterly Annually months years Check manual and ★ 3.7.1.1 decals Pre-operation ★ 3.7.1.2 inspection ★ 3.7.1.3 Functional test ★ 3.7.1.4 Battery Inspection Check hydraulic oil ★...
  • Page 31 Table 3-2 Maintenance Schedule Maintenance Every Every 6 Items Work Description Daily Monthly Quarterly Annually months years Inspect tires and ★ 3.7.4.5 wheels Inspect emergency ★ 3.7.4.6 stop function ★ 3.7.4.7 Test key switch Test braking ★ 3.7.4.8 function ★ 3.7.4.9 Test the horn Test high driving...
  • Page 32 Table 3-2 Maintenance Schedule Maintenance Every Every 6 Items Work Description Daily Monthly Quarterly Annually months years Check drive hub ★ 3.7.4.19 lubrication grease and bolts Inspect platform ★ 3.7.5.1 overload system Replace hydraulic ★ 3.7.5.2 tank exhaust cover Replace engine oil ★...
  • Page 33 Result: decal is missing, illegible or damaged.Stop using the machine before the manual is replaced. Put it back in the storage box after using the manual. Reminder: if need to replace the manual or label, please contact Zoomlion or Zoomlion dealer. 3.7.1.2 Pre-start inspection It is important to implement pre-start inspection for safety operation.
  • Page 34 Machines with sealed or maintenance-free batteries are not required for this check. Contact with electrically charged circuits could result in death or serious injury. Remove all rings, watches or other jewelry. Batteries fluid is highly corrosive. Avoid spilling or contacting battery acid. Neutralize battery acid spills with baking soda and water.
  • Page 35 Never work on a running engine! No smoking and open flames! Be careful when contacting hot oil, there is a danger of burns! Insufficient or excessive oil can cause engine damage. When the oil level is lower than the lower engraved line of the dipstick or higher than the upper engraved line of the dipstick, it is not allowed to start the diesel engine.
  • Page 36 3.7.1.8 Check coolant level This inspection is conducted every 8 hours or once a day, whichever comes first. Observe the coolant safety regulations and local regulations. Dispose of spilled fuel and filter elements in accordance with regulations. The coolant must not penetrate the ground. The cooling system is under pressure and the cover can only be opened when it is cool.
  • Page 37 Test the axle system with platform raised. Hold the function enable switch on control handle, and raise the platform by 2m/6ft 7in Drive the left wheel into a 10cm/4in deep hole. Result: four tires are in contact with the ground at all times. Drive the right wheel into a 10cm/4in deep hole.
  • Page 38 The battery terminal voltage ≥12.5V is normal, otherwise it should be replenished in time. Consult Zoomlion after-sale service team for more relevant problems. 3.7.4.2 Inspect electrical wiring This inspection is conducted every 250 hours or quarterly, whichever comes first.
  • Page 39 Battery wiring in battery tray. Platform control box interior. Turn the key switch to Platform Control and pull out the red Emergency Stop button to the on position at both the ground and platform controls. Raise the platform approximately 4m/13ft 1in from the ground. Lift the safety arm, move the safety arm to the middle of the scissor bushing and rotate it up to the vertical position.
  • Page 40 Turn the key switch to Ground Control and pull out the red Emergency Stop button to the on position at both the ground and platform controls. Press and hold down the lift function selection button. Check the leak of filter. Clean the hydraulic fluid that is spilled around the filter.
  • Page 41 3.7.4.6 Inspect emergency stop function Figure 3-12 Ground control panel Table 3-3 Ground Control Panel Instruction Name Name Key switch Auxiliary power enable button Platform down button Breaker Engine pre-heating button Breaker Engine start button Breaker Overload indicator Breaker Engine idle speed select button with Auxiliary power lower button indicator Lifting enable button...
  • Page 42 Turn the key switch to Ground Control and pull out the red Emergency Stop button to the on position at both the ground and platform controls, Press the red Emergency Stop button to the off position at ground control. Result: the machine has no movements. Turn the key switch to Platform Control and pull out the red Emergency Stop button to the on position at both the ground and platform controls, Press the red Emergency Stop button to the off position at platform control.
  • Page 43 Figure 3-13 Platform control panel Table 3-4 Platform control panel instruction Item Item Outrigger function enable button Drive function switch with indicator Outrigger auto-leveling button Function enable switch Light Thumb rocker switch for steering Horn button Proportional control handle Engine idle speed button with Machine tilt button with indicator indicator Reserved...
  • Page 44 Measure the distance between the test line and your machine reference point. The maximum braking distance on flat ground is 75cm ± 10cm/2ft 6in ± 4in, the maximum braking distance on slope braking is 150cm ± 10cm/5ft ± 4in. Result: the machine will stop within the specified braking distance, passing the test. Result: the machine will not stop within the specified braking distance.
  • Page 45 Select a test area that is firm, level and free of obstructions. Create start and finish lines by marking two lines on the ground 10m/4in apart. Turn the key switch to Platform Control and pull out the red Emergency Stop button to the on position at both the ground and platform controls.
  • Page 46 3.7.4.14 Check ventilation system of hydraulic tank This inspection is conducted every 250 hours or quarter, whichever comes first. Free-breathing tank is essential to good machine performance and service life. Unclean or clogged venting caps can cause poor machine performance. Extremely dirty conditions may require more often inspection. Remove the venting cap from the tank.
  • Page 47 3.7.4.16 Check the door lock components on both sides of he classis This inspection is conducted every 250 hours or quarter, whichever comes first. Maintaining the door lock components on both sides of he classis in good condition is essential to good performance and service life.
  • Page 48 The zero point of the tape measure is fixed at a suitable position on the platform, and the tape measure body is placed on the ground. Turn the key switch to Ground Control, and pull out the emergency stop buttons on ground and platform.
  • Page 49 Angle sensor, located at the scissor arm, is used to measure the tilt angle of the scissor to determine the height of the platform. Move the machine to a firm and level ground. Place heavy objects on the platform (748kg/1649lbs for ZS1623RT). Turn the key switch to Ground Control, and attempt to raise the platform to approximately 3.2m/10ft 6in.
  • Page 50 Do not do the test if the engine is running! No smoking and flame! Beware of burn hazards when contacting hot oil. When working on the oil system, pay attention to the cleanliness of the external surface, carefully clean all areas involved, and blow dry the compressed area with compressed air. Observe the oil safety regulations and local regulations.
  • Page 51 Replace engine oil filter: Every time the oil is changed, the oil filter element must also be changed. Never pre-fill the filter, there is a danger of contamination. Remove the old oil filter. Fill the new filter with clean engine oil. Apply oil to the rubber pad before installing the new oil filter.
  • Page 52 Screw on the filter by hand until the seal is combined with the interface. Continue to twist the filter by hand until the filter is firmly installed (about 3/4 turns). exhaust until no bubbles appear. Conduct a leak test. 3.7.5.5 Valve clearance inspection and adjustment This inspection is conducted after 50-100 hours of usage, and inspect it every 1,000 hours or year thereafter, whichever comes first.
  • Page 53 Remove the filter element from the air filter, and pat the end surface to make the dust fall. You can also blow back with compressed air as shown in Figure 3-16: Figure 3-16 Compressed air cleaning filter 3.7.6 Maintenance every 12 months 3.7.6.1 Check scissor arm wear-resistant slider The scissor wear-resistant slider inspection is performed every 1000 hours or every 12 months, whichever comes first.
  • Page 54 Please select the hydraulic oil of the appropriate brand and technical parameters according to the specific use environment of the equipment. For special environments or users with special requirements, please contact ZOOMLION or hydraulic oil manufacturers.
  • Page 55 DO NOT mix oils of different brands or types, as they contain different additives which may cause negative effects. If mixing of hydraulic oils is unavoidable, permission must be obtained from the hydraulic oil manufacturer. After-sales service of ZOOMLION does not cover machine malfunction caused by hydraulic oil mixing.
  • Page 56 Table 3-5 Technical Parameters of Hydraulic Oil Kinematic Technical Pour Flash Viscosity Viscosity Parameters Viscosity Point Point cSt(40℃/ index ℃/℉ ℃/℉ Brand & Type Grade 104℉) Clarity Synthetic EA -44/-47 221/430 Hydraulic Oil Mobil DTE 10 Ultra 22 -54/-65 224/435 22.4 Mobil DTE 10 Ultra 32 -54/-65...
  • Page 57 Cleanliness of the hydraulic oil upon delivery is NAS9 (ISO4406 18/15), and for normal operation, the cleanliness should not be lower than NAS10 (ISO4406 19/16). We suggest that the hydraulic oil should be checked every 6 months, and the oil should be sampled at least once upon the time for oil changing. The oil sample can be sent to the hydraulic oil manufacturer or qualified third-party testing agency for analysis and to determine whether it is still usable.
  • Page 58 3.7.7.2 Refill or replace engine coolant Conduct this item every 2000 hours of usage or once every 2 years. Observe the safety regulations for coolants and local regulations. Dispose of the spilled coolant as specified and do not leave it on the ground. The cooling system is under pressure and the cover can only be opened when it is cool.
  • Page 59 履带起重机操作手册 第一章 安全操作说明...
  • Page 61 Section 4 ELECTRICAL SYSTEM MAINTENANCE 4.1Troubleshooting of Electrical Systems If the platform controls LED or ground controls LCD d iagnostic readout displays following codes, the fault condition must repaired or removed before resuming machine operation. 4.1.1 Fault code Table 4-1 Fault code list Code Display Describe...
  • Page 62 Table 4-1 Fault code list Code Display Describe 51 Drive Coil 3 Fault Drive coil 3 malfunction 52 Func Prop Coil Fault Proportional valve coil failure 54 Up Coil Fault Lift up valve coil failure 55 Down Coil Fault Lift down valve coil failure 56 Right Turn Coil Fault Right turn valve coil failure 57 Left Turn Coil Fault...
  • Page 63 4.1.2 Troubleshooting method Table 4-2 Troubleshooting method Code Troubleshooting Method Replace ECU Inspect wiring,if the wiring is intact, replace the upper and lower controllers separately to determine which fault Inspect wiring，Or replace the solenoid valve coil Inspect wiring，Or replace the solenoid valve coil Inspect wiring, or check sensor Inspect wiring, or check sensor Check switches and wiring...
  • Page 64 Table 4-2 Troubleshooting Method Code Troubleshooting Method Check the wiring and replace solenoid valve Check the wiring and replace solenoid valve Check the wiring and replace solenoid valve Check the wiring and replace solenoid valve Check if the air filter element is clogged, if so, replace filter element; or check the wiring Check the wiring and replace solenoid valve Check the wiring and replace solenoid valve...
  • Page 65 4.1.3 ECU Pin definition Figure 4-1 ECU Electrical Interface Table 4-3 GCU J1 Interface pin definition Type Function Type Function Outrigger retracting solenoid J1-1A Output Right-turn solenoid valve J1-7B Output valve Buzzer,electrical level and J1-2A Output Left-turn solenoid valve J1-8B Output effective Left front outrigger solenoid...
  • Page 66 Table 4-3 GCU J1 Interface pin definition Type Function Type Function Traveling speed solenoid Right front outrigger limit J1-12A Output J1-6C Input valve switch J1-1B Output J1-7C Input Engine speed signal (pulse) Forward proportional J1-2B Output J1-8C Input Water temperature switch signal solenoid valve（PWM）...
  • Page 67 Table 4-4 GCU J2 Interface pin definition Type Function Type Function J2-6A Input 9m limit switch signal J2-12B Output Left rear outrigger J2-7A Input J2-1C Power Power Limit switch signal J2-8A Input Oil-water separator J2-2C Power Power J2-9A Output Shutdown relay J2-3C Power Power...
  • Page 68 4.1.4 Electrical Schematic Figure 4-2 ZS1623RT Electrical Schematic...
  • Page 69 履带起重机操作手册 第一章 安全操作说明...
  • Page 71 SECTION 5 HYDRAULIC SYSTEM MAINTENANCE 5.1 Inspection and Maintenance of Hydraulic System 5.1.1 Routine inspection of hydraulic system In order to keep the hydraulic system in good working condition for a long time, the hydraulic system needs to be maintained and maintained on time.The following are some routine inspections and maintenance: Table 5-1 Hydraulic System Maintenance Intervals Inspection Intervals (Working hours)
  • Page 72 In the routine maintenance of the hydraulic system, the following points should be noted: The functions of hydraulic oil in hydraulic system is transferring pressure, lubrication, cooling and sealing. The improper selection of hydraulic oil is the main reason for the early failure and durability decline of the hydraulic system.
  • Page 73 Oil supplier shall wear clean gloves and work clothes. The cleaning oil of the hydraulic system must use the same hydraulic oil as that used in the system and the cleaning oil temperature should be between 45℃/113℉ and 80℃/176℉ and the impurity in the system is carried away with the large flow as far as possible.
  • Page 74 5.1.3 Replace hydraulic filter When replacing the filter element, please be careful not to reverse the filter inlet and outlet ports, otherwise it will cause serious consequences. 5.1.3.1 High pressure filter Replace the filter element after 50 hours of usage, and replace the filter element every 250 hour thereafter.
  • Page 75 5.1.3.3 Return oil filter Replace the filter element after 50 hours of usage, and replace the filter element every 250 hour thereafter. Figure 5-3 Return oil filter 5.1.4 Replace hydraulic oil When delivery, the hydraulic oil tank has been filled up with hydraulic oil (oil type) according to customer or environment requirement.
  • Page 76 Select appropriate hydraulic oil according to ambient temperature. Hydraulic oil of different brands cannot be mixed with each other. When changing oil, wash off all the old oil and take care not to mix the sand, dust, etc. with the oil tank. When changing the oil in each circuit, pay attention to constantly replenishing the hydraulic fluid with new oil to prevent the pump from emptying.
  • Page 77 5.1.6 Hydraulic cylinder inspection The cylinder of each auxiliary device should be inspected periodically. The inspection items shall include: Check for scratches on the piston rod. Check the seal between the piston rod and the cylinder for oil leakage, while doing corresponding auxiliary action.
  • Page 78 Leakage. Failure to comply with installation and positioning requirements (refer to the below matters needed attention of installation of hydraulic hoses). Damage to the fixtures of the hose unit. Corrosion, deformation or damage of hose unit. Exceeding storage time or service life. Even if no damage is found, the hoses must be replaced every six years (including a maximum of two years of storage time) at the latest.
  • Page 79 Use elbow and other connectors if necessary: ①Too long hose assembly can be avoided. ②To ensure that the installation is tidy and the maintenance is convenient in the future. Incorrect Correct Figure 5-6 Use connectors Use the clamp to ensure the hose is positioned: Effectively reduces abrasion between hoses and associated components.
  • Page 80 5.1.8 Hydraulic valves Lift, steer and outrigger control valves. Figure 5-9 Lift, steer and outrigger control valves Table5-1 Lift, steer and outrigger control valves Item Function Torque Flow valve Stable flow 27.1 Nm/20 ftlb Solenoid coil Control steering 27.1 Nm/20 ftlb Control outrigger Solenoid coil Nm/6 ftlb...
  • Page 81 Travelling diverter valve. Figure 5-10 Traveling diverter valves Table 5-2 Travel diverter valves Item Function Torque Overflow valve Pressure limit/overflow Nm/31 ftlb Flow distributing and Distribute flow Nm/99 ftlb collecting valve Flush valve Oil extraction Nm/25 ftlb 5-11...
  • Page 82 Float balance valves. Figure 5-11 Float balance valves Table 5-3 Float balance valves Item Function Torque Balance valve Lock float cylinder Nm/22 ftlb Balance valve Lock float cylinder Nm/22 ftlb 5-12...
  • Page 83 Upper lift balance valve. Figure 5-12 Upper lift balance valve Table 5-4 Upper lift balance valve Item Function Torque Plug Block off oil port Nm/25 ftlb Balance valve Lock float cylinder Nm/54 ftlb 5-13...
  • Page 84 Upper lift balance valve. Figure 5-13 Lower lift balance valve Table 5-5 Lower lift balance valve Item Function Torque Balance valve Lock float cylinder Nm/54 ftlb Overflow valve Limit pressure Nm/44 ftlb 5-14...
  • Page 85 Two-speed brake floating valve. Figure 5-14 Two-speed brake floating valve Table 5-6 Two-speed brake floating valve Item Function Torque Solenoid valve Switch two-speed 27.1 Nm/20 ftlb Solenoid valve Control motor start 27.1 Nm/20 ftlb Control float balance Solenoid valve 27.1 Nm/20 ftlb valve start Solenoid valve...
  • Page 86 Outrigger solenoid valve. Figure 5-15 Outrigger solenoid valve Table 5-7 Outrigger solenoid valve Item Function Torque Check valve Lock outrigger Nm/25 ftlb Solenoid valve Outrigger extend 27.1 Nm/20 ftlb 5-16...
  • Page 87 5.1.9 Hydraulic schematics Fig. 5-16 ZS1623RT Hydraulic Schematics 5-17...
  • Page 89 履带起重机操作手册 第一章 安全操作说明...
  • Page 91 SECTION 6 COMMON FAULTS ANALYSIS When the work platform is in use, it is necessary to inspect it in time and to repair it when necessary. The purpose of maintenance is as follows: Ensuring the reliability of operations. Maintaining the efficiency of the work platform. Prevent downtime.
  • Page 92 Table 6-1 Electrical System Fault List Fault phenomenon Cause Solution 1.Fault of communication 1.Whether CAN_H1 and CAN_L2 lines between platform line on the platform and ground controller and ground controller are properly connected. System controller. 2.Or replacement of the platform communication error 2.Fault of work platform controller.※...
  • Page 93 Use Wechat to scan the above QR code for Zoomlion product information. Copyright 2015 Zoomlion Heavy Industry Co., Ltd. All rights reserved. Without the written permission of Zoomlion Heavy Industry Science & Technology Co., Ltd.. This sample may be copied for any purpose.