LGMG T65J User manual

Service Manual
T20J、T22J、T26J
Telescopic 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.
Telescopic boom Mobile Elevating Work Platform
Service Manual
880*1230 mm Sextodecimo 8 sheets
First edition, Dec. 2022 First print, Dec. 2022
LINGONG HEAVY MACHINERY CO., LTD.

Add.: 12F, Building 3, Lushang Olympic City, No. 9777, Jingshi Road, Lixia District, Jinan
City, Shandong Province, China
Tel: [phone] Technical service hotline: [phone]
Web: www. lgmg. com. cn Parts sales hotline: [phone]

Service Manual of Telescopic Boom Mobile Elevating Work Platform
Contents
Foreword VIII
Safety Notices IX
Chapter I Safety and Environment 1
1.1 Terms and Definitions 3
1.2 Compliance 3
1.3 Before maintenance 3
1.4 Workplace requirements 3
1.5 Safety precautions for maintenance and repair 3
1.6 Intended use 4
1.7 Description 4
Chapter II Product Introduction 7
2.1 Machine parameters 9
2.1.1 Parameters of T65J (T0020JNDAH21) 9
2.1.2 Parameters of T85J (T2623J0WND4AH2001) 10
2.2 Pecification for selection of tightening torque of the lifting platform 12
2.3 Key component moment table 14
Chapter III Service 17
3.1 Notice 19
3.2 Platform assembly 19
3.2.1 Removing the platform assembly 19
3.2.2 Assembling the platform assembly 21
3.3 Jib assembly 23
3.3.1 Removing the jib assembly 23
3.3.2 Removing the swing cylinder 24
3.3.3 Removing the flying jib cylinder 25
3.3.4 Removing the upper leveling cylinder 26
3.3.5 Assembling the jib assembly 26
3.3.6 Assembling the flying jib cylinder 27
3.3.7 Assembling the swing cylinder 27
3.3.8 Assembling the stop block 28
3.3.9 Hoisting the jib 28
3.3.10 Assembling the upper leveling cylinder 28
3.4 Telescopic boom assembly 29
3.4.1 Removing the telescopic boom frame 29
3.4.2 Removing the telescopic cylinder 31
3.4.3 Removing the lower leveling cylinder 33
3.4.4 Removing the cable carrier 34
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Service Manual of Telescopic Boom Mobile Elevating Work Platform
3.4.5 Assembling the telescopic boom frame 35
3.4.6 Assembling the telescopic cylinder 39
3.4.7 Assembling the lower leveling cylinder 41
3.4.8 Assembling the cable carrier 41
3.4.9 Rope 43
3.5 Engine side components (Deutz TD2.9L4) 45
3.5.1 Assembling the engine drivetrain 45
3.5.2 Assembling the engine intake system 45
3.5.3 Assembling the engine exhaust system 46
3.5.4 Assembling the engine cooling system 46
3.5.5 Subassembling the engine 46
3.6 Fuel tank side components 46
3.6.1 Removing the fuel tank 46
3.6.2 Installing the fuel tank 47
3.6.3 Removing the hydraulic tank 47
3.6.4 Installing the hydraulic tank 48
3.6.5 Assembling the ground control unit (GCU) 51
3.6.6 Assembling the emergency power unit 51
3.6.7 Assembling battery 51
3.6.8 Assembling the DC power switch 51
3.7 Turntable assembly 52
3.7.1 Hoisting the turntable 52
3.7.2 Removing the slewing gearbox 52
3.7.3 Assembling the slewing gearbox 53
3.7.4 Removing the open variable displacement pump 53
3.7.5 Assembling the open variable displacement pump 54
3.8 Front axle assembly 54
3.8.1 Removing wheels 54
3.8.2 Assembling wheels 54
3.8.3 Removing the front axle driving motor, steering knuckle and walking gearbox 54
3.8.4 Assembling the front axle driving motor, steering knuckle and walking gearbox 55
3.8.5 Removing the floating cylinder 56
3.8.6 Assembling the floating cylinder 56
3.8.7 Removing the steering cylinder 57
3.8.8 Assembling the steering cylinder 57
3.9 Rear axle assembly 57
3.9.1 Removing the rear axle driving motor and reducer 57
3.9.2 Assembling the rear axle driving motor and gearbox 58
3.10 Other components 58
3.10.1 Assembling the radiator assembly 58
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