LGMG AR45J Service Manual
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LGMG AR45J Service Manual

Articulated boom mobile elevating work platform
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Service manual
AR45J、AR52J
Articulated Boom Mobile
Elevating Work Platform
△
WARNING
!
Before operation and maintenance, the
drivers and maintenance personnel are
required to read this manual thoroughly.
Otherwise, fatal accident may occur. This
manual shall be kept properly for future
reference by the personnel concerned.
LINGONG HEAVY MACHINERY CO.，LTD.

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Summary of Contents for LGMG AR45J

  • Page 1 Service manual AR45J、AR52J Articulated Boom Mobile Elevating Work Platform △ WARNING Before operation and maintenance, the drivers and maintenance personnel are required to read this manual thoroughly. Otherwise, fatal accident may occur. This manual shall be kept properly for future reference by the personnel concerned.
  • Page 2 L I N G O N G H E A V Y M A C H I N E R Y C O . , L T D . Add.: 12F, Building 3, Lushang Olympic City, No. 9777, Jingshi Road, Lixia District, Jinan City, Shandong Province, China Tel: 86-0531-67605017 Technical service: 86-4009666569 Web: www.LGMG.com.cn Sales of accessories:86-0531-67605016...

  • Page 3: Table Of Contents

    Intended use ..........................4 Description ..........................4 Product Introduction ..........................7 Machine parameters ........................9 2.1.1 Parameters of AR45J（A0014JNKAH21）articulated lifting platform ........9 2.1.2 Parameters of AR45J（A0014JNDAH21）articulated lifting platform ........10 2.1.3 Parameters of AR52J（A0016JNKAH21）articulated lifting platform ........12 2.1.4 Parameters of AR52J（A0016JNDAH21）articulated lifting platform ........
  • Page 4 Service Manual of Articulated Boom Mobile Elevating Work Platform Boom/extension jib assembly....................31 3.4.1 Disassembling the boom ......................31 3.4.2 Disassembling the extension jib assembly ................32 3.4.3 Assembling the extension jib assembly ..................33 3.4.4 Assembling the boom assembly ....................34 Cylinder assembly ........................
  • Page 5 Service Manual of Articulated Boom Mobile Elevating Work Platform 3.9.8 Assembling horn ........................55 3.10 Rotary table swing assembly ....................56 3.10.1 Removing slewing drive assembly .................... 56 3.10.2 Assembling slewing drive assembly ..................56 3.10.3 Lifting rotary table ........................56 3.11 Axle assembly ...........................
  • Page 6 Service Manual of Articulated Boom Mobile Elevating Work Platform Compliance ..........................77 Check for labels and signs ......................77 Check for damaged, loose or missing parts ................77 Check Hydraulic Oil Level ......................78 Check for hydraulic oil leakage ....................78 Check for Batteries ........................
  • Page 7 Service Manual of Articulated Boom Mobile Elevating Work Platform 4.20.6 Cleaning or replacement of air filter ..................98 4.20.7 Check for coolant liquid level ....................99 4.20.8 Filling or Replacement of Engine Coolant ................. 99 4.20.9 Check for Engine Belt ......................100 4.21 Regular Maintenance......................
  • Page 8 Service Manual of Articulated Boom Mobile Elevating Work Platform Appendix III Hydraulic schematic diagram ....................138 Appendix IV Diagram of common hydraulic part symbols ................ 139 Appendix V Diagram of common electrical part symbols ................. 146...

  • Page 9: Foreword

    Service Manual of Articulated Boom Mobile Elevating Work Platform Foreword You are welcome to purchase and use the products produced by Lingong Heavy Machinery Co., Ltd. This manual introduces the technical parameter and maintenance adjustment data of the Articulated Boom Mobile Elevating Work Platform, and explains the troubleshooting and maintenance process for qualified professional maintenance personnel.

  • Page 10: Safety Notices

    Service Manual of Articulated Boom Mobile Elevating Work Platform Safety Notices The operator should understand and follow the current national and local safety regulations. If there are no national or local regulations, the safety instructions in this manual shall be applicable. Most accidents are caused by failure to comply with the regulations on the operation and maintenance of the machine.

  • Page 11: Safety And Environment

    Service Manual of Articulated Boom Mobile Elevating Work Platform 1. Safety and Environment...
  • Page 12 Service Manual of Articulated Boom Mobile Elevating Work Platform...

  • Page 13: Terms And Definitions

    Service Manual of Articulated Boom Mobile Elevating Work Platform 1.1 Terms and Definitions Administrator: the entity or individual that directly controls the use and application of the lifting platform, which usually refers to the owner, the renter or the authorized personnel of owner who obtains the control right of the lifting platform;...

  • Page 14: Intended Use

    Lingong Group Jinan Heavy Machinery Co., Ltd. Symbol representation Symbols, color codes and symbolic words used by LGMG products have the following meanings: Safety warning sign - used for warning of potential personal injury. Observe all safety tips after this sign to avoid possible personal injury or death.
  • Page 15 Service Manual of Articulated Boom Mobile Elevating Work Platform Blue - Indicating a dangerous situation. If not avoided, it may result in property damage.
  • Page 16 Service Manual of Articulated Boom Mobile Elevating Work Platform...

  • Page 17: Product Introduction

    Service Manual of Articulated Boom Mobile Elevating Work Platform 2. Product Introduction...
  • Page 18 Service Manual of Articulated Boom Mobile Elevating Work Platform...

  • Page 19: Machine Parameters

    Service Manual of Articulated Boom Mobile Elevating Work Platform 2.1 Machine parameters 2.1.1 Parameters of AR45J（A0014JNKAH21）articulated lifting platform 1. Parameters of machine Item Parameter Item Parameter Rotary table rotation time 82-92 per circle (stowed) (s) Rated load (kg/lbs) 230/510 Rotary table rotation time...

  • Page 20: Parameters Of Ar45J（A0014Jndah21）Articulated Lifting Platform

    8/2.1 （L/gal_US） Engine antifreeze Gearbox oil （L/gal_US） 0.68×4/0.18×4 7.5/2 （L/gal_US） （L/gal_US） Diesel 65/17.2 2.1.2 Parameters of AR45J（A0014JNDAH21）articulated lifting platform 1. Parameters of machine Item Parameter Item Parameter Rotary table rotation time 82-92 per circle (stowed) (s) Rated load (kg/lbs) 230/510...
  • Page 21 Service Manual of Articulated Boom Mobile Elevating Work Platform Max. span height (m/ft) 7.56/24.8 Boom retraction time (s) 20-30 Min. turning radius (inner 1.94/6.36 Jib lifting time (s) 30-50 wheel) (m/ft) Min. turning radius (outer 4.41/14.47 Jib lowering time (s) 20-35 wheel) (m/ft) 1≤S≤1.5/...

  • Page 22: Parameters Of Ar52J（A0016Jnkah21）Articulated Lifting Platform

    Service Manual of Articulated Boom Mobile Elevating Work Platform system Pump displacement （ml/r） Lifting system Max. working 23.5/3408 （MPa/psi） pressure Max. working 23.5/3408 pressure （MPa/psi） Slewing system Motor displacement （ml/r） Steering system Max. working pressure 23.5/3408 （MPa/psi） 6. Electronic control system Item Parameter Output voltage (V)
  • Page 23 Service Manual of Articulated Boom Mobile Elevating Work Platform to boom 2. Main dimensions Item Parameter Item Parameter Overall length (mm/in) Track width (mm/in) 7560/298 2059/81 Wheelbase (front/rear) Overall width (mm/in) 2310/91 1981.5/78 (mm/in) Min. ground clearance Overall height (mm/in) 2170/86 360/14 (mm/in)

  • Page 24: Parameters Of Ar52J（A0016Jndah21）Articulated Lifting Platform

    Service Manual of Articulated Boom Mobile Elevating Work Platform Hydraulic oil （L/gal_US） Engine oil 130/34.3 8/2.1 （L/gal_US） Engine antifreeze Gearbox oil （L/gal_US） 0.68×4/0.18×4 7.5/2 （L/gal_US） Diesel （L/gal_US） 65/17.2 2.1.4 Parameters of AR52J（A0016JNDAH21）articulated lifting platform 1. Parameters of machine Item Parameter Item Parameter Rotary table rotation time...

  • Page 25: Specification For Selection Of Tightening Torque Of The Lifting Platform

    Service Manual of Articulated Boom Mobile Elevating Work Platform Transmission system Item Parameter Rated output torque (Nm) 3500 Walking reducer Speed ratio 57.49：1 Rated output torque (Nm) 8729 Slewing reducer Speed ratio 86：1 5. Hydraulic system Item Parameter Type Closed Walking Pump displacement (ml/r) system...
  • Page 26 Service Manual of Articulated Boom Mobile Elevating Work Platform Tightening torque of metric-threaded oil ports Tightening torque of imperial-threaded oil ports Fitting type Plug Fitting type Plug Thread Thread Pipe Pipe specificatio specificatio Type Type VSTI- Type Type VSTI- diameter diameter n (mm) n (Inch)
  • Page 27 Service Manual of Articulated Boom Mobile Elevating Work Platform after calculation; For Parker joints, the torque is to be selected according to the name and specification, and for ordinary joints, the torque is to be selected according to the thread specification. For example: 1）...

  • Page 28: Key Component Moment Table

    Service Manual of Articulated Boom Mobile Elevating Work Platform Table 4 according to 15L is 32 N.m. Table 4: Tightening torque of ordinary bolts (unit: N.m) Nominal diameter of bolt mm Strength grade of Yield strength bolt N/MM² Tightening torque N· m 4～5 10～12 20～25...
  • Page 29 Service Manual of Articulated Boom Mobile Elevating Work Platform Hoisting of platform 53± 5 72± 7 assembly 439± 41 595± 55 Load cell Adjustment nut length: 53-55mm. Counterweight 1113± 111 1508± 150 Assembling of swing 38± 4 52± 5 cylinder...
  • Page 30 Service Manual of Articulated Boom Mobile Elevating Work Platform...

  • Page 31: Service

    Service Manual of Articulated Boom Mobile Elevating Work Platform 3. Service...
  • Page 32 Service Manual of Articulated Boom Mobile Elevating Work Platform...

  • Page 33: Platform Assembly

    Service Manual of Articulated Boom Mobile Elevating Work Platform 3.1 Platform assembly 3.1.3 Assembling the lifting cross bar 3.1.1 Assembling the file box Fig. 3.3 Assembling the lifting cross bar 1. Lifting cross bar 2. U-bolt 3. Rubber hose 4. Nut 5.

  • Page 34: Assembling The Stop Block

    Service Manual of Articulated Boom Mobile Elevating Work Platform platform support and swing motor mounting 6：52±5N•m； bracket using part 2 until the part 2 cannot be Tools ： Open spanner16-18 ； Open spanner inserted any more. Pay attention that the 13-16 ；...

  • Page 35: Jib Assembly

    Service Manual of Articulated Boom Mobile Elevating Work Platform platform support and the swing cylinder, the platform bracket. manually screw on the parts 2/3 (note that do Mark, disconnect and plug all hydraulic not tighten the part 1 at this time), adjust the hoses on the jib/platform changeover valve.

  • Page 36: Assembling The Swing Cylinder, The Fly Jib Cylinder And The Jib

    Service Manual of Articulated Boom Mobile Elevating Work Platform △ ! WARNING: Risk of personal injury 3.2.2 Assembling the swing cylinder, Sprayed hydraulic oil can penetrate the fly jib cylinder and the jib and burn the skin. Therefore, please Place part 1/2/3/4 onto the jib subassembly loosen the hydraulic fitting connection tooling as shown below.
  • Page 37 Service Manual of Articulated Boom Mobile Elevating Work Platform bolt (part 16). Then remove the attached 3/4, as shown below: plugs at ports V1 and V2 of the balance valve, install the straight fitting (part 15) to the two ports and tighten them to specified torque.

  • Page 38: Cable Carrier Assembly

    Service Manual of Articulated Boom Mobile Elevating Work Platform Fig. 3.18 Arm wiring board assembly 1. Bolt 2. Washer 3. Nut 4. Pipe clamp 5. Cushion collar 6. Spacer ring Tightening torque of part 1: 12± 1N.m Tools: socket wrench 1/2-10mm, socket wrench 1/2-16mm, QSP100N4, QSP25N4...
  • Page 39 Service Manual of Articulated Boom Mobile Elevating Work Platform crane to release the pressure on the pivot at loosen the hydraulic fitting connection the boom luffing cylinder rod end. very slowly to reduce the oil pressure 16. Remove the pivot at the boom luffing cylinder gradually.

  • Page 40: Assembling The Cable Carrier

    Service Manual of Articulated Boom Mobile Elevating Work Platform Install one end of the cable carrier on the 3.3.2 Assembling the cable carrier support plate with parts 5/6/7 and the other Place part 1 on the side mounting plate of end on the aluminum pipe with parts 5/6/7 the boom, then place parts 2/3 on the lower (with the screw at the cable carrier end and...

  • Page 41: Boom/Extension Jib Assembly

    Service Manual of Articulated Boom Mobile Elevating Work Platform torque of the lifting platform. 1. Remove the platform. 2. Remove the fly jib. Refer to "Disassembling the fly jib". 3. Remove the cable carrier. Refer to "Disassembling the cable carrier". 4.

  • Page 42: Disassembling The Extension Jib Assembly

    Service Manual of Articulated Boom Mobile Elevating Work Platform disassembled. Refer to "Disassembling the boom very slowly to reduce the oil pressure telescopic cylinder”. gradually. Do not spray or eject the oil. 1. Remove the boom. Refer to "Disassembling 13. Remove the hose clamp of the boom end the boom".

  • Page 43: Assembling The Extension Jib Assembly

    Service Manual of Articulated Boom Mobile Elevating Work Platform dimensions of the upper, lower, left and right △ WARNING: Risk of crushing sliders, then measure front If the support is improper, the dimensions of the boom at the corresponding positions, and determine the number of telescopic cylinder may fall off due to washers (part 6) used according to the imbalance when removed from the boom...

  • Page 44: Assembling The Boom Assembly

    Service Manual of Articulated Boom Mobile Elevating Work Platform 3.4.4 Assembling the boom assembly Fig. 3.27 Main arm back end travel switch assembly Fig. 3.26 Assembling the boom assembly 4. Travel switch 5. Screw 6. Nut 7. Washer 1. Latch 2. Bolt 3. Washer Note: Tightening torque of part 2: 90±...

  • Page 45: Cylinder Assembly

    Service Manual of Articulated Boom Mobile Elevating Work Platform Reference tightening torque of screw (part 5): Support the rod end and barrel end of the 3± 0.3 N.m; boom luffing cylinder with a second Tools: open-end wrench 8-10 overhead crane or similar lifting equipment. Connect the boom oil pipe.

  • Page 46: Disassembling The Boom Telescopic Cylinder

    Service Manual of Articulated Boom Mobile Elevating Work Platform cylinder mounting shaft. Note: The end of the shaft with latch hole is on the 11. Remove the cylinder mounting shaft at the left side. barrel end with a copper hammer. Carefully Fix the shaft with parts 3/4/5, as shown in Fig.

  • Page 47: Disassembling The Lower Leveling Cylinder

    Service Manual of Articulated Boom Mobile Elevating Work Platform reached in the boom telescopic pipe. damaged. Remove the hose and cable guard from the Note: Pay attention to the length of upper pivot. cylinder after disassembling. Mark, disconnect and plug the hydraulic mounting spacing of cylinders must be hose of the boom telescopic cylinder.

  • Page 48: Assembling The Lower Leveling Cylinder

    Service Manual of Articulated Boom Mobile Elevating Work Platform 1. Lift the folding jib until it can come into 3.5.5 Assembling the lower leveling contact with the link end and barrel end cylinder pivots of the lower leveling cylinder. 2. Mark, disconnect and plug the hydraulic hose of the main pump.

  • Page 49: Disassembling The Upper Leveling Cylinder

    Service Manual of Articulated Boom Mobile Elevating Work Platform threadlock. 5. Remove the fastener of dowel pin from the Tool: QSP100N4/socket wrench 16# cylinder mounting shaft at the rod end of the upper leveling cylinder. Do not remove the 3.5.6 Disassembling the upper leveling cylinder mounting shaft;...

  • Page 50: Folding Jib Assembly

    Service Manual of Articulated Boom Mobile Elevating Work Platform 3.6 Folding jib assembly Fig. 3.31 Folding jib assembly Upper 2nd jib assembly (#1 jib) Folding jib cylinder Upper 1st jib assembly (#2 jib) Lower 2nd jib assembly (#4 jib) Lower 1st jib assembly (#3 jib) Rotary table assembly Middle pivot Upper pivot...

  • Page 51: Removing Folding Jib

    Service Manual of Articulated Boom Mobile Elevating Work Platform remove the main boom luffing cylinder from 3.6.1 Removing folding jib the machine. △ CAUTION: Risk of personal injury △ WARNING: Risk of squeezing This procedure requires specific Without proper support from the service skills, lifting equipment and a lifting device, the main boom luffing suitable...
  • Page 52 Service Manual of Articulated Boom Mobile Elevating Work Platform from the machine. Without proper support from 10×10×28cm/3.94×3.94×11 cushion △ CAUTION: Risk of part damage. block, the folding jib may fall. When removing the folding jib lift 22. Pull out all cables and hoses through the cylinder from the machine, be careful not upper pivot.
  • Page 53 Service Manual of Articulated Boom Mobile Elevating Work Platform to the middle pivot for support. Do not lift it. △ WARNING: Risk of crushing 32. Remove the pin securing fasteners from the pivots of #2, #3 and #4 jibs at the middle Without proper support from the pivot.

  • Page 54: Assembling Folding Jib Assembly

    Service Manual of Articulated Boom Mobile Elevating Work Platform 46. Mark, disconnect and plug the fuel hose of 56. Remove the mounting fasteners of folding jib the fuel tank. Clean up any spilled fuel. drive speed limit switch from the #4 jib at the 47.
  • Page 55 Service Manual of Articulated Boom Mobile Elevating Work Platform Fig. 3.33 Lower arm fittings and lower two arm fittings are Fig. 3.32 Folding arm saaembly installed Lift the boom assembly on line using slings as 1. Shaft 2. Latch 3. Bolt 4. Washer shown in Fig.

  • Page 56: Removing Folding Jib Lift Cylinder

    Service Manual of Articulated Boom Mobile Elevating Work Platform connecting rod end and barrel end of the 3.6.3 Removing folding jib lift cylinder folding jib cylinder. But do not remove the pin. In the structure of folding jib assembly, there Connect the sling from the overhead crane to are two folding jib lift cylinders.
  • Page 57 Service Manual of Articulated Boom Mobile Elevating Work Platform Fig. 3.35 Assembling folding jib lift cylinder 1. Folding jib lift cylinder 2. Shaft 3. Bolt 4. Nut 1. Assemble the folding jib lift cylinders to both Fig. 3.36 Blance valve assembly sides of the front end of the boom, as shown: 5.

  • Page 58: Kubota Engine Assembly

    Service Manual of Articulated Boom Mobile Elevating Work Platform 2） Apply AT277 high-temperature thread 3.7 Kubota Engine Assembly sealant to bolts before screwing. 3.7.1 Engine drivetrain ② Install the pump cover and its fasteners to the engine and tighten them to specified torque. Note：...

  • Page 59: Assembly Of Engine Exhaust System

    Service Manual of Articulated Boom Mobile Elevating Work Platform 2. Assemble one end of Part 16 on Part 15, 1. Fixing plate 2. Rubber plate 3. Radiator connect the other end to the engine intake port, assembly 4. Bolt 5. Washer 6. Nut and fasten both ends with Part 17 respectively;...

  • Page 60: Deutz Engine Assembly

    Service Manual of Articulated Boom Mobile Elevating Work Platform inlet connecting pipe 9. Hose clamp 10. Air 3.8 Deutz Engine Assembly cleaner 11. Hoop 12. Bolt 13. Washer 14. Nut 15. 3.8.1 Assembly of engine drivetrain Mechanical differential pressure alarm 16. Assemble Part 1 to the engine with Part 2 Engine air inlet steel tube 17.

  • Page 61: Assembly Of Engine Cooling System

    Service Manual of Articulated Boom Mobile Elevating Work Platform Part 14; connect one end of Part 15 with the 3.8.4 Assembly engine cooling water outlet at the bottom of the radiator and system the other end with the water inlet of the engine, and fasten both ends with Part 6;...

  • Page 62: Assembling The Fuel Tank

    Service Manual of Articulated Boom Mobile Elevating Work Platform part 4 with parts 2 and 3, and tighten part 2: fire。 Do not drain or store fuel in open Reference tightening torque of part 2: 6N.m Tool: S4 Allen wrench containers for fear of possible fire.

  • Page 63: Assembling The Hydraulic Tank

    Service Manual of Articulated Boom Mobile Elevating Work Platform hydraulic tank. Install the oil return filter element (part 3), the △ O-ring (part 4) and the oil return flange CAUTION: Risk of part damage. assembly (part 5) onto the top of the The engine shall not be started when hydraulic tank weldment with the bolts (part the valve of the hydraulic tank is closed,...

  • Page 64: Assembling Ground Control System

    Service Manual of Articulated Boom Mobile Elevating Work Platform Fig. 3.50 Assembling the hydraulic tank 9. Ball valve 10. Straight fitting 11. Oil suction Fig. 3.52 Assembling the hydraulic tank flange assembly 12. Bolt 13. Straight fitting 20. Bolt 21. Washer 22. Nut 23. Bolt Tightening torque of part12: 12±...

  • Page 65: Assembling Slewing Ring Grease Filler Hose

    Service Manual of Articulated Boom Mobile Elevating Work Platform 3.9.6 Assembling slewing ring grease filler hose 1. Remove the grease filler from the slewing ring and screw-on part 1 (just tighten it), connect part 2 to part 1 and then wind it around to the right side of the rotary table, install parts 3/4/5/6/7 to the mounting position on the Fig.

  • Page 66: Rotary Table Swing Assembly

    Service Manual of Articulated Boom Mobile Elevating Work Platform mounting fasteners. 3.10 Rotary table swing assembly Carefully remove the slewing drive assembly 3.10.1 Removing slewing drive assembly from the machine. △ △ CAUTION: WARNING: Risk of crushing The O-ring (if any) of the removed Without proper connection to the hose assembly and/or fitting must be overhead crane, the rotary table rotation...

  • Page 67: Axle Assembly

    Service Manual of Articulated Boom Mobile Elevating Work Platform 6. Remove the pipe clamp. 7. Mark, disconnect and plug the hoses and fittings connected to the floating cylinder. △ ! WARNING: Risk of personal injury Sprayed hydraulic oil can penetrate and burn the skin.
  • Page 68 Service Manual of Articulated Boom Mobile Elevating Work Platform the illustrated yellow circle, which is located at right-hand end of the operator. After the 3. Lift the subassembled connecting plate to the adjustment, use part 3 (coated with sealant)/ 4 assembly position of the front axle, and install to put fastener 5 for the connecting plate and part 1 to the upper and lower contact surfaces...
  • Page 69 Service Manual of Articulated Boom Mobile Elevating Work Platform 9. Adjust the position of pin, and fasten part 1 to the outside weld surface of front axle with parts 3, 4 and 5 tightened to specified torque. See the Fig. below: Fig.

  • Page 70: Disassembling The Rear Axle Assembly

    Service Manual of Articulated Boom Mobile Elevating Work Platform traveling motor and the reducer when 3.11.3 Disassembling rear axle the traveling motor is installed on the assembly machine,Making sure the o-ring are in △ the correct position. CAUTION: 3. Another jack is placed under the reducer to Before refitting, the O-ring of the support and hold the reducer.

  • Page 71: Disassembling The Wheel

    Service Manual of Articulated Boom Mobile Elevating Work Platform reducer, and install the O-ring. After that, the inside and install it as a whole. press-fit the shaft sleeves at two ends of the Afterwards, fasten the part with parts 3, 4 and pin mounting hole in the middle of rear axle.

  • Page 72: Assembling The Wheel

    Service Manual of Articulated Boom Mobile Elevating Work Platform with sufficient bearing capacity under the steering axle. 3. Raise the machine by 15 cm/0.49ft, and place a cushion block under the chassis for the purpose of supporting. △ ! CAUTION: Risk of crushing. improperly supported, Fig.

  • Page 73: Bleeding Steering Cylinder

    Service Manual of Articulated Boom Mobile Elevating Work Platform for 1-2min under no load. the folding jib luffing cylinder. The folding jib luffing cylinder can be divided into three parts, as shown. The extension and 3.12.4 Bleeding steering cylinder retraction of piston rod should count as one 1.

  • Page 74: Bleeding Main Boom Telescopic Cylinder

    Service Manual of Articulated Boom Mobile Elevating Work Platform 3.12.9 Bleeding platform swing cylinder 3.12.7 Bleeding main boom telescopic 1. Activate the platform rotation button, and carry out left and right slewing for 1~2 min. cylinder The machine should not swing greatly to 1.

  • Page 75: Assembling Battery

    Service Manual of Articulated Boom Mobile Elevating Work Platform weldment with parts 2/3/4. Tools: Ratchet wrench 13 2. Install the parts 5/7 at the upper port and do Note: The removal is carried out in reverse order not tighten the part 7. of assembly, and just corresponding fasteners 3.

  • Page 76: Valve Group

    Service Manual of Articulated Boom Mobile Elevating Work Platform 3.14 Valve group 3.14.1 Installing the spool 1. Immerse the spool in clean oil to lubricate the O-ring. 2. Manually screw in the spool until it reaches the top of the O-ring, and then adjust the torque to meet specification requirements.

  • Page 77: Luffing Balance Valve

    Service Manual of Articulated Boom Mobile Elevating Work Platform flow Dividing/combining the fluid flow to increase or decrease fluid Flow divider/combiner valve 99-104 flow Damper Limiting and stabilizing the flow Damper Limiting and stabilizing the flow Check valve Enabling one-way oil supply 55-65 Purge valve Closed system purge valve...

  • Page 78: Balance Valve

    Service Manual of Articulated Boom Mobile Elevating Work Platform O-ring O-ring Valve block 3.14.4 Balance valve Fig. 3.84 Balance valve Torque Description Function of valve spool (Nm) Balance valve Pressure balance 40-50 O-ring Valve block...

  • Page 79: Boom Function Valve Block

    Service Manual of Articulated Boom Mobile Elevating Work Platform 3.14.5 Boom function valve block Fig. 3.85 Boom function valve block Description Function of valve spool Torque (Nm) Relief valve Limiting the maximum pressure of the lifting system 33.9 Flow valve Adjusting the hydraulic oil flow 33.9 Solenoid valve...

  • Page 80: Floating Valve

    Service Manual of Articulated Boom Mobile Elevating Work Platform Damper Stabilizing hydraulic oil flow Flow valve Adjusting the hydraulic oil flow 33.9 Check valve Enabling one-way flow of hydraulic oil 40-45 Balance valve Balancing pressure 40-45 Balance valve Balancing pressure 34-41 Plug 11-12...

  • Page 81: Floating Cylinder Balance Valve

    Service Manual of Articulated Boom Mobile Elevating Work Platform Fig. 3.86 浮动阀 Description Function of valve spool Pressure (bar/psi) Screw Back cover Set screw Spring seat Return spring Dust ring Seal ring Valve body Plug U2 plug Valve spool Seal ring Screw Pressure plate Check valve...

  • Page 82: Platform Valve

    Service Manual of Articulated Boom Mobile Elevating Work Platform 3.14.8 Platform valve Fig. 3.88 Platform valve Description Function of valve spool Torque (Nm) Flow valve Adjusting the hydraulic oil flow 27.1 Solenoid valve Control the flyarm amplitude 43-47 Solenoid valve Control platform swing 43-47 Plug...

  • Page 83: Counterbalance Valve

    Service Manual of Articulated Boom Mobile Elevating Work Platform 3.14.9 Counterbalance valve Fig. 3.89 Counterbalance valve Torque Description Function of valve spool (Nm) Valve block Balance valve Pressure balance 70-75 Plug Damper O-ring...
  • Page 84 Service Manual of Articulated Boom Mobile Elevating Work Platform...

  • Page 85: Maintenance

    Service Manual of Articulated Boom Mobile Elevating Work Platform 4. Maintenance...
  • Page 86 Service Manual of Articulated Boom Mobile Elevating Work Platform...

  • Page 87: Compliance

    2) Regular maintenance inspections should be performed by qualified authorized service please contact the service staff of technicians as required by the manufacturer. LGMG. 4.3 Check for damaged, loose or Maintenance Symbols missing parts The following symbols appear in this...

  • Page 88: Check Hydraulic Oil Level

    Service Manual of Articulated Boom Mobile Elevating Work Platform Indentation or damage to the machine 4.5 Check hydraulic Ensure that all structural components and leakage other key components are complete and all Check hydraulic oil leakage once every 8 h or relevant fasteners and pins are in the correct position and tightened.

  • Page 89: Checking The Wires

    If an external power supply is secure required to charge the battery, only the  Check the wiring of the battery cable. charger approved by the LGMG can be The wiring is firm and free from corrosion.  Check whether the battery fluid leaks used.

  • Page 90: Check For Tires And Hubs

    Service Manual of Articulated Boom Mobile Elevating Work Platform Engine wiring harness 4.9 Checking Oil Level in the Drive All wire harness connectors to ground control box Check oil level in the drive hubs every 250 hours All wire harness connectors to platform or quarterly, whichever comes first.

  • Page 91: Visual Inspection Of The Hydraulic Oil

    Service Manual of Articulated Boom Mobile Elevating Work Platform ① hydraulic oil must be tested by an oil Remove the exhaust cover from the distributor or replaced. hydraulic oil tank cap. Note: If the hydraulic oil has not been replaced ②...

  • Page 92: Replacing The Return Filter Of Hydraulic Tank

    Service Manual of Articulated Boom Mobile Elevating Work Platform hydraulic tank. ② Remove the old filter and install a new 4.13 Replacing the return filter of one. hydraulic tank ③ Refit the filter flange. △ ④ Use a marker to write down the ! Risk of personal injury.

  • Page 93: Replacing Drive Hub Gear Oil

    Service Manual of Articulated Boom Mobile Elevating Work Platform cover. 30° C＜The lowest 85W/140 temperature Check the seal of the filter cover, and replace it when necessary. -10° C＜The lowest 85W/90 temperature＜30° C Install a new high-pressure filter element, and tighten it. -30°...

  • Page 94: Maintenance Before Delivery

    Lubricating method: Continuously inject It refers to the lubrication of the lubricating grease into the injection port of LGMG platform for working at heights lubricating grease while rotating the before delivery. slewing reducer Position 1: Lubrication of the roller path:...
  • Page 95 Service Manual of Articulated Boom Mobile Elevating Work Platform Tightening △ Description torque ! This step shall be performed when Oil suction flange bolt 12± 1N.m the engine is shut down. Oil drain flange bolt 28± 3N.m △ Screw plug ! In a dusty working environment, this Oil drain flange Ring magnet...

  • Page 96: Engine Maintenance -Deutz

    Service Manual of Articulated Boom Mobile Elevating Work Platform 7) Flush the inside of the hydraulic tank with a △ Body Hazards. When removing mild solvent. (Clean it with chemical cleaning agent at first. After drying, flush the hydraulic oil tank with improper with clean hydraulic oil and drain the oil.) support, there would be fall hazards of hydraulic oil tank.

  • Page 97: Replacement Of Engine Oil And Filter

    Service Manual of Articulated Boom Mobile Elevating Work Platform level can only be checked when the engine is It is available in the first 50 hours, and the placed horizontally and shut down. If the engine engine oil and filter shall be replaced every 500 is hot, shut down the engine and check the hours.

  • Page 98: Check For Fuel Leakage

    Service Manual of Articulated Boom Mobile Elevating Work Platform 2) Place the engine horizontally. Replacement of the Engine Oil Filter The engine oil filter element must also be 3) Shut down the engine. replaced every time the engine oil is replaced. 4) Place the container under the engine oil drain plug.

  • Page 99: Vent Fuel Pre-Filter

    Service Manual of Articulated Boom Mobile Elevating Work Platform 2) Disconnect cable connection. △ There is danger of explosion and 3) Loosen the drainage plug located at the bottom of the filter cartridge, allowing the fire. If fuel leaks, prevent any additional person from entering the water drained to an appropriate container.

  • Page 100: Replacement Of The Fuel Filter

    Service Manual of Articulated Boom Mobile Elevating Work Platform Wait until the electric fuel supply pump is increase in the number of replacement filters is required for the extremely disconnected from the control unit. dirty work environment. ● Ignition "OFF" Repeat the process at least 2 times until the fuel △...

  • Page 101: Cleaning Or Replacement Of Air Filter

    Service Manual of Articulated Boom Mobile Elevating Work Platform every 8 hours or every day. △ Do not clean the filter element (4) △ Perform this step when the with gasoline or high temperature liquid. engine is turned off. If the primary element is stained heavily, replace it soon.

  • Page 102: Check For Coolant Liquid Level

    Service Manual of Articulated Boom Mobile Elevating Work Platform filter element (4). 4.19.9 Filling or Replacement of Engine Coolant 3) Filter element (4): For slight contamination, Replace it every 2,000 hours or two years. purge with dry compressed air (maximum 205 Kpa) from inside to outside for cleaning △...

  • Page 103: Check For Engine Belt

    Service Manual of Articulated Boom Mobile Elevating Work Platform 6) Tighten the bolts and nuts. freezing point should selected according local ambient Tightening torque temperature, the principle is that the Screw 1 42 Nm freezing point of coolant is 10 ℃ -15 ℃ Screw 2 30 Nm lower than the local minimum temperature.

  • Page 104: Replacement Of Engine Oil And Filter

    Service Manual of Articulated Boom Mobile Elevating Work Platform Insufficient or excessive engine oil may cause △ Please observe safety damage to the engine. The engine oil level can only be checked when the engine is placed regulations for engine oil and relevant horizontally and closed.

  • Page 105: Check For Fuel Leakage

    Service Manual of Articulated Boom Mobile Elevating Work Platform Warm up and run the engine. you tighten the cartridge with a wrench, it will be tightened too much. Place the engine horizontally. Fix the clamping clamp of a torsion stopper Shut down the engine.
  • Page 106 Service Manual of Articulated Boom Mobile Elevating Work Platform Be careful when contacting high temperature fuel! △ Do not release the injection pipeline high-pressure pipeline when the engine is running. △ Carefully clean all areas involved Fig. 4.18 Fuel strainer 1.
  • Page 107 Service Manual of Articulated Boom Mobile Elevating Work Platform filter wrench. qualified fire extinguisher shall be placed at the location that is easily Apply a film of oil to the gasket for the new accessible. water separator filter. Screw in the water separator filter by hand. △...

  • Page 108: Check For Engine Air Filter

    Service Manual of Articulated Boom Mobile Elevating Work Platform new one every 500 operating hours, or half a year, but an increase in the number replacement filters required for the extremely dirty work environment. △ Fig. 4.21 Air filter There is danger of explosion and △...

  • Page 109: Check For Coolant Liquid Level

    Service Manual of Articulated Boom Mobile Elevating Work Platform 205 Kpa) from inside to outside for cleaning △ (general cleaning times are no more than 5 Do not clean the filter element (4) times); with gasoline or high temperature Replace it in case of serious contamination. liquid.

  • Page 110: Check For Engine Belt

    Service Manual of Articulated Boom Mobile Elevating Work Platform The cooling system is under pressure! The cover temperature. can only be opened in the cooling state. 4.20.9 Check for Engine Belt Coolant must have a specified concentration of Check it every 8 hours or every day. cooling system protectant! Please observe the safety regulations for coolant △...

  • Page 111: Regular Maintenance

    Service Manual of Articulated Boom Mobile Elevating Work Platform Fig. 4.24 Belt Apply moderate thumb pressure to belt between the pulleys. If tension is incorrect, loosen the alternator mounting bolts and, using a lever placed between the alternator and the engine block, pull the alternator out until the deflection of the belt falls within acceptable limits.

  • Page 112: Engine Fault Table

    Service Manual of Articulated Boom Mobile Elevating Work Platform 4.22 Engine Fault Table Kubota Fault Cause Measures Check the fuel tank, and remove water, dirt and other impurities. Fuel is thick and doesn't flow. Check the fuel filter cartridge and replace it if necessary.
  • Page 113 Service Manual of Articulated Boom Mobile Elevating Work Platform Below starting limit temperature Check Cold starting device Check/replace Wrong SAE viscosity class of the Change the lubricating oil engine lubricating oil Fuel quality does not comply with Change the fuel operating manual Battery defective or discharged Check battery...
  • Page 114 Exhaust gas turbocharger defective Change Engine performs poorly Engine electronics reduce Please contact your LGMG partner diagnostic lamp lights performance Injection line leaks Check injection line Injector defective Change Engine does not run on all cylinders Compression pressure too low...

  • Page 115: Engine Fault Codes

    Service Manual of Articulated Boom Mobile Elevating Work Platform Lube oil level too high Check lube oil level, if necessary drain off Engine producing blue smoke Check engine mounting reduce Excessive inclination of engine inclination Fuel quality does not comply with Change the fuel operating manual Engine producing white smoke...
  • Page 116 Service Manual of Articulated Boom Mobile Elevating Work Platform after the fuel injection) Low engine intake air mass flow Engine intake air mass Intake Air Flow: Low (with turbo-blower intake hose flow: below 50% of the disconnected) target value Sensor/harness open or shorted MAF sensor voltage: below MAF Sensor: Low to ground...
  • Page 117 Service Manual of Articulated Boom Mobile Elevating Work Platform EGR position sensor error EGR Position Sensor Failure 523572 EGR position sensor failure signal received via CAN Oil pressure switch ON: ＞ Oil Pressure Error Oil pressure switch Diesel particulate filter (hereinafter referred to as Exhaust Gas Temperature Sensor/harness shorted to...
  • Page 118 Service Manual of Articulated Boom Mobile Elevating Work Platform Shorted to Ground shorted to ground EEPROM Checksum Error 523700 KBT-EEPROM checksum error EEPROM checksum error Throttle position deviation is Intake Throttle Feedback Error 523580 Intake throttle feedback error not corrected after 20 load error recovery operations Accelerator Position Sensor 1: Sensor/harness shorted to...

  • Page 119: Engine Fault Codes (Deutz)

    Service Manual of Articulated Boom Mobile Elevating Work Platform unburned fuel DOC inlet temperature (T0): Exhaust Gas Temperature 4765 DOC inlet temperature (T0) high Sensor 0: Emergency High above 700℃ (1292℉) DPF inlet temperature (T1): Exhaust Gas Temperature 3242 DPF inlet temperature (T1) high above 715℃...
  • Page 120 Service Manual of Articulated Boom Mobile Elevating Work Platform system reaction is initiated. Battery voltage: The voltage measured by ECU is out of the target range, system reaction is initiated. Battery voltage: The voltage measured by ECU is out of the target range,system reaction is initiated.
  • Page 121 Service Manual of Articulated Boom Mobile Elevating Work Platform Sensor crankshaft detection. Out of range, signal disrupted or no signal Crankshaft speed sensor: The ECU receives no signal and uses the signal from camshaft speed sensor as alternative to calculate the engine speed PWM-Signal fan, short-circuit to battery.
  • Page 122 Service Manual of Articulated Boom Mobile Elevating Work Platform Internal hardware monitoring: the CPU of the ECU is reset and the cause is 523612 logged internally; no item will be created in error memory Internal hardware monitoring: the CPU of the ECU is reset and the cause is 523612 logged internally;...
  • Page 123 Service Manual of Articulated Boom Mobile Elevating Work Platform Rail pressure sensor: the voltage of sensor measured by ECU is out of the target range Rail pressure sensor: the voltage of sensor measured by ECU is out of the target range Analog accelerator pedal 2 (hand pedal): the voltage measured by ECU is out of the target range.

  • Page 124: Maintenance Schedule

    Service Manual of Articulated Boom Mobile Elevating Work Platform Physical range check low for battery voltage 1181 Actuator EGR-Valve: Open load on ECU output is detected 1223 Actuator EGR-valve: too high curent is going into the actuator. Output is 1224 switched off Actuator EGR-valve: short cut to battery is detected 1226...
  • Page 125 Service Manual of Articulated Boom Mobile Elevating Work Platform Check the engine oil ● level Check the fuel level in ● the fuel tank Check if the fuel ● system pipeline leaks Check the radiator ● coolant level Check if the cooling ●...
  • Page 126 Service Manual of Articulated Boom Mobile Elevating Work Platform stained Check if the PCU ● harness is extruded or broken Check if the ● inclinometer is wired firmly Check the position of the rotary table swing ● limit switch rocker arm and if it is wired loosely Check if the solenoid valve connector of the...
  • Page 127 Service Manual of Articulated Boom Mobile Elevating Work Platform lower Check the permeability ● ● ● ● ● of the hydraulic oil tank exhaust cap Replace hydraulic oil Hydraulic oil Every 2,000h or every two years, whichever comes first and suction filter L-HV32 Replacement of the high pressure filter...
  • Page 128 Service Manual of Articulated Boom Mobile Elevating Work Platform Lithium- Grease the platform ● ● based load cell mechanism grease...

  • Page 129: Commissioning

    Service Manual of Articulated Boom Mobile Elevating Work Platform 5. Commissioning...
  • Page 130 Service Manual of Articulated Boom Mobile Elevating Work Platform...

  • Page 131: Safety Instructions

    Service Manual of Articulated Boom Mobile Elevating Work Platform to maintain a sufficient safety distance from wires, 5.1 Safety instructions power supplies, and electrical equipment. Before commissioning, please make sure to Required safety refer to the Operation and Maintenance Manual, Voltage distance familiarize yourself with the relevant safety...

  • Page 132: Basic Test

    Service Manual of Articulated Boom Mobile Elevating Work Platform 5.2 Basic test 5.2.1 Start test 1. After the key is inserted into the key switch socket and turned to "Platform Control" mode, then the beacon will flash, the screen will light up, and the platform control unit will run; after the key switch is turned to the neutral position, the machine will be turned off, and the beacon will be turned off, the screen will be off;...

  • Page 133: Basic Operation Test Of Ground Control Unit

    Service Manual of Articulated Boom Mobile Elevating Work Platform and the ground control switch are pulled outward and the engine start switch is turned; The engine can be started smoothly after the emergency stop switch of the platform control system is pressed, the emergency stop switch of the ground control system is pulled outward, and the engine start switch (ground control) is turned;...

  • Page 134: Basic Operation Test Of Platform Control System

    Service Manual of Articulated Boom Mobile Elevating Work Platform The arm rod will extend if the first arm rod extension and retraction switch is moved leftward; the arm rod will retract if the first arm rod extension and retraction switch is moved rightward. First arm rod lift switch The first arm rod will rise if the first arm rod lift switch is moved upwards;...
  • Page 135 Service Manual of Articulated Boom Mobile Elevating Work Platform Fig. 1.5 Foot switch Press down the foot switch, and test the control lever or button of each function of the machine. Control criteria: all arm rods and platform functions should operate for a complete cycle. When the emergency stop switch is in the "ON”...
  • Page 136 Service Manual of Articulated Boom Mobile Elevating Work Platform 13. Control the rotation of the rotary table via the left control lever. Control criteria: The rotary table will rotate to the right if the left control lever is moved rightward. The rotary table will rotate to the left if the left control lever is moved leftward.

  • Page 137: Hydraulic Oil Level Test

    Service Manual of Articulated Boom Mobile Elevating Work Platform 5.2.4 Hydraulic oil level test Retract the boom in place, lower the short arm to the lowest position, push the emergency stop switch to the “OFF” position, pull open the rubber hook under the right cover by hands, open the right cover, and snap the support rod into the rubber groove.

  • Page 138: Drive Speed Limit Test

    Service Manual of Articulated Boom Mobile Elevating Work Platform When the center of the front wheel of the retracted; machine passes the 20m/65.6ft test line, turn ② Pay attention to driving safety. off the power switch and let the machine stop automatically.

  • Page 139: Tilt Sensor Test

    Service Manual of Articulated Boom Mobile Elevating Work Platform ③ Pay attention to driving safety. 5.2.11 Tilt sensor test ） In the platform control mode, depress the foot 5.2.12 Gradeability test（45 switch, after which the boom is lifted by about Drive the machine to the front of a 45% slope, 90cm/2.95ft (or the articulating boom 、...

  • Page 140: Operation Time Test

    Service Manual of Articulated Boom Mobile Elevating Work Platform and retract the boom; Control criteria:30S-40S。 Adjust the travel direction of the machine, and Press the enable button and the second arm drive it, so that the left front wheel and the left rod lift switch (up) at the same time to lift the rear wheel cross the test pit in turn.

  • Page 141: Lifting Height Test

    AR52J ： 15.70 Test target value cylinder piston rods and the sinkage of the ± 0.16m/51.51± 0.52ft； platform. AR45J ： 14.09 Test target value Control criteria: the retraction of hydraulic cylinder piston rods is not more than 2mm, ± 0.14m/46.22± 0.46ft；...

  • Page 142: Pressure Test

    Service Manual of Articulated Boom Mobile Elevating Work Platform load; pressure measuring connector； Hang the rated load of 230kg/507.1 lbs at the platform end, and calibrate the rated load. 5.3 Pressure test 5.3.1 System overflow pressure test Fig. 1.9 Boom control valve set Connect the pressure gauge to the pressure tap;...

  • Page 143: Appendix

    Service Manual of Articulated Boom Mobile Elevating Work Platform 6. Appendix...
  • Page 144 Service Manual of Articulated Boom Mobile Elevating Work Platform...

  • Page 145: Appendix I Machine Fault Code

    Service Manual of Articulated Boom Mobile Elevating Work Platform Appendix I Machine fault code Description Open circuit in control unit output power supply 1 Open circuit in control unit output power supply 2 Open circuit in control unit output power supply 34 Platform electric box extension module bus off Carrier electric box display bus off Load cell 1 fault...

  • Page 146: Appendix Ii Electrical Schematic Diagram

    Service Manual of Articulated Boom Mobile Elevating Work Platform Appendix II Electrical schematic diagram 1. AR45J、AR52J Electrical schematic diagram（Kubota engine）...
  • Page 147 Service Manual of Articulated Boom Mobile Elevating Work Platform 2. AR45J、AR52J Electrical schematic diagram（Deutz engine）...
  • Page 148 Service Manual of Articulated Boom Mobile Elevating Work Platform Appendix III Hydraulic schematic diagram...
  • Page 149 Service Manual of Articulated Boom Mobile Elevating Work Platform Appendix IV Diagram of common hydraulic part symbols (1) Hydraulic pump, hydraulic motor and hydraulic cylinder Name Symbol Description Name Symbol Description Hydraulic General Detailed pump symbol symbol Non- adjustable One-way one-way One-way rotation,...
  • Page 150 Service Manual of Articulated Boom Mobile Elevating Work Platform One-way flow, one- Fixed displaceme One-way rotation, nt hydraulic action fixed pump-motor displaceme Turbocharg Two-way flow, two- Variable Pump- displaceme rotation, Continuous motor nt hydraulic variable action pump-motor displaceme nt, external oil drain Unidirection al rotation,...
  • Page 151 Service Manual of Articulated Boom Mobile Elevating Work Platform pressure co internal oil ntrol drain External control of air Gas-liquid pressure, * Control Locking pilot hydraulic method for device pressure co internal unlocking ntrol control, external oil drain Electro- Hydraulic hydraulic external Bounce...
  • Page 152 Service Manual of Articulated Boom Mobile Elevating Work Platform Double- acting adjustable Press-pull electromag type netic operation (torque motor, etc.) Rotary motion Handle type electrical control device One-way Feedback General pedal type control symbol The position is detected Two-way Electrical Feedback potentiometer pedal type...
  • Page 153 Service Manual of Articulated Boom Mobile Elevating Work Platform General Direct- symbols or Two-way acting, Unloading direct-acting relief valve external oil valve unloading drain valve Unloading General valve symbols or Pilot Pressure direct- electromag reducing acting netic p1>p2 valve pressure unloading reducing valve...
  • Page 154 Service Manual of Articulated Boom Mobile Elevating Work Platform four-way proportional valve Two- position Normally Two- four-way closed position proportional two-way valve solenoid valve Normally Four-way open servo valve Two- Four-way position electro- Level 2 Reversing three-way hydraulic valve solenoid servo valve valve Two-...
  • Page 155 Service Manual of Articulated Boom Mobile Elevating Work Platform tank Pipe end Local oil With air above the drain or cleaner liquid level return Pressurized oil tank or Three oil closed oil tank circuits (7) Fluid regulator General Filter Air cleaner symbol Filter with pollution...
  • Page 156 Service Manual of Articulated Boom Mobile Elevating Work Platform General Temperatur symbol e sensor General Coupling symbol Coupling Amplifier Flexible coupling (10) Pipeline, pipeline joints and connectors Pressure The two pipeline and Cross pipelines are Pipeline return pipeline crossed and pipeline unconnected pipelines...
  • Page 157 Service Manual of Articulated Boom Mobile Elevating Work Platform Combination Composite knob switch button Low voltage Emergency circuit stop button breaker Controller or Key- operating operated switch button Coil operating Thermal device element Thermal relay Normally Normally open main closed contact contact Contactor...
  • Page 158 Service Manual of Articulated Boom Mobile Elevating Work Platform Normally closed contact which Normally closed instantaneous contact disconnected Normally open contact Overvoltage which is coil closed with delay Normally closed contact which Undervoltag e coil disconnected with delay Voltage relay Normally closed Normally...
  • Page 159 Service Manual of Articulated Boom Mobile Elevating Work Platform Three- Generator phase transformer Generator Voltage tachometer transformer generator Transform Signal lamp Current (indicator transformer lamp) Lamp Plug Plug and Lighting lamp Connector socket Socket...

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