Kato Crane Structure and Maintenance Manual

2021-04-25

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Contents Introduction This book introduces the construction principle and maintenance of Japan Kato full-hydraulic truck crane, and introduces the disassembly and assembly of components such as hydraulic pumps. The book is divided into three chapters and 21 chapters, respectively, introduced the Kato NKl60, NK200, NK250, TL250, NK350 and NK400 full hydraulic crane structural principles and maintenance. This book is picture-enhanced, complete data, content is easy to understand, practical, can be used by truck crane drivers and maintenance personnel.

Foreword In order to meet the needs of crane maintenance technicians, drivers and owners, and improve the maintenance and repair level, we have specially prepared this “Kateng Crane Crane Structure and Maintenance Manual”. This book introduces the basic working principle of the engine, hydraulic system, winch system, luffing system, swing system, boom system and electrical system of Kato NK160, NK200, NK250, NK350, NK400 and TL250 type truck cranes, and focuses on The disassembly, adjustment and maintenance methods. This book is edited by Zhang Fengshan and Jing Yongchen. Participating in this book are Wang Hongchen, Zhang Lichang, Liu Shichun, Zhai Rongchang, Cui Xiumei, Wang Hao, Yuan Shaowu, Zhang Lei, Jing Yongchen, Zhu Delu, and Wang Ying. Due to the limited level of the author, the errors and omissions in the book are inevitable. Welcome to critics and experts for criticism. July 2010 Editor

Book cataloging (CIP) data Kato truck crane structure and maintenance manual / Zhang Fengshan, Jing Yongchen editor. - Beijing: Machinery Industrial Press, 2011.11 ISBN 978-7-111-36299-9 1. 1 plus... n. 1 ... 2 static ... III. 1 Truck Crane - Structure - Technical Manual 2 Truck Cranes - Repair - Technical Manual IV. 1TH213.6-62 Chinese version library CIP data nuclear word (2011) No. 223430 Machinery Industry Press (No. 22 Million Street, Beijing 100037) Planning Editor: Qi Fujiang Editor: Qi Fujiang Layout Design: Huo Yongming Responsibility proofreading: Liu Yidan Cover design: Zhao Yingzheng Responsibility: Yang Hao Beijing Sanya Yamei Printing Co., Ltd. printing May 2012 First Edition First Printing 184mmx260mm·29.5 Sheets with 4 Inserts · 763 kb · 461 pages 0001--3000 ISBN: ISBN 978-7-111-36299-9 Pricing: 78.00 yuan Way of purchase: Xinhua Bookstore Online Bookstore

Catalog First Kato NK-160 Crane Chapter 1 Manipulation The first section mainly explains A crane appearance Second, performance and specification Third, the safety device The second quarter operation method A crane operating device Second, the crane operation The third quarter crane operation precautions I. Precautions before and after the operation room II. Precautions when the winch is hoisted or decentralized Third, the mast attention when telescopic Fourth, when turning matters V. Precautions when walking Section IV care instructions First, check Second, adjust Third, the gas release in the liquid Fourth, change the wire rope Refueling in the fifth quarter First, hydraulic oil Second, pay attention to when adding lubricants Third, daily inspection items Chapter II Hydraulic Section The first section of the hydraulic road Section 2 Hydraulic Circuits First, the oil pump Second, turntable rotating oil (4 valve) Third, the mast telescopic oil (4 valve) Four, winch control oil Fifth, the mast from the oil discharge Sixth, jack oil (six joint control valve) Section III Hydraulic Structure and Function First, dual gear pump Second, variable displacement axial piston winch motor Third, radial piston turntable hydraulic motor Four and four operation valve Five, six combined operating valve Six, double control valve VII. Balance valve (oil winch) Eight, balance valve (for supine oil road) Nine, heavy relay valve Tenth, winch motor motor check valve Eleven, accumulator Twelve, pipeline filter Chapter 3 Disassembly and Maintenance Section 1 Disassembly and Assembly of Hydraulic Devices One, two-stage gear pump Second, the displacement of the displacement of the axial piston winch hydraulic motor disassembly Third, variable displacement axial piston winch hydraulic motor assembly Fourth, the radial piston turntable liquid motor (the same as 30 tons crane) disassembly and assembly Fifth, the assembly and disassembly of the turntable deceleration box and the hydraulic motor assembly The second winch First, the demolition of the winch Second, the winch installation Third, the clutch bracket assembly Fourth, the clutch bracket lining is installed in the winch barrel. 5. Install the gearbox and winch drum together 6. Install the winch on the turntable Section 3 disassembly mast First, remove the mast from the turntable Second, remove the mast from the mast in the first section Third, remove the telescopic cylinder from the mast section 2 Fourth, remove the mast from section 2 V. Assembly of pulleys and guide rails 6. Assembly of Section 2 masts and Section 3 masts VII. Assembly of masts 1, 2, and 3 VIII. Mounting the mast on the platform The fourth quarter A dismantling Second, the jack of assembly Second Kato NK200, NK350, NK400 Cranes Chapter IV Classification, Structure and Hydraulic Principles of Truck Cranes Section 1 Classification of Truck Cranes First, the classification of lifting cars Second, the structure of lifting cars Section II Hydraulic Transmission Principle Second, the characteristics of hydraulic transmission Third, the composition of the hydraulic system Fourth, the crane hydraulic oil requirements Fifth, the advantages and disadvantages of hydraulic transmission Six, hydraulic circuit Seven, read the hydraulic system diagram Chapter 5 Basic knowledge of full hydraulic truck crane Section 1 Basic composition of a full hydraulic truck crane First, on the crane part Second, get off the car part Section II Technical Parameters First, some Japanese Kato full hydraulic truck crane boom tipping angle Second, some of Japan's Kato full hydraulic truck crane hydraulic components main technical parameters Section 3 Manipulators of Kato NK200 Full Hydraulic Truck Crane First, the operating device of the vehicle cab Second, Kato NK200 crane control device Chapter 6 Construction and Maintenance of Jiateng Truck Crane Diesel Engine The first section 6DC22A diesel engine I. 6DC22A diesel engine structural parameters Second, the characteristics of 6DC22A diesel engine Third, the overall structure of 6DC22A diesel engine Section 2 Diesel Engine Disassembly and Maintenance First, the disintegration of diesel engines Second, dismantling technical requirements Third, the diesel engine removed from the car Fourth, the diesel engine installation Section 3 Crank Linkage Mechanism First, the body group and the piston Second, connecting rod and crankshaft Section 4 Crank Linkage Maintenance First, the cylinder block and cylinder head damage Second, the repair of the cylinder block and cylinder head Third, the cylinder wall repair Fourth, the damage of the crankshaft and connecting rod Fifth, the maintenance of the crankshaft Sixth, the maintenance of the connecting rod Seven, the piston's damage Eight, the repair of the piston Nine, the assembly of the crank linkage mechanism X. Repair of injector set Section V Valve Maintenance First, the basic structure of the valve train Second, the maintenance of the camshaft Third, the timing gear system installation Fourth, valve assembly maintenance Fifth, adjust the valve clearance of 6DC22A diesel engine Section 6 Fuel Supply System I. Fuel Supply System for 6DC22A Diesel Engine Second, fuel supply and regulation device Chapter VII Hydraulic Truck Crane Hydraulic System The first festival of the NK-160 hydraulic truck crane hydraulic system First, the hydraulic system Second, the hydraulic pump circuit Third, the leg circuit Fourth, winch circuit Fifth, arm amplitude loop Six, boom telescopic loop Seventh, the return circuit Second Festival NK-250EIII Full Hydraulic Truck Crane Hydraulic System First, the hydraulic pump circuit Second, the leg circuit Third, the owner of the control valve Fourth, winch circuit Fifth, arm amplitude loop Six, boom telescopic loop Seventh, the return circuit Eight, safety valve Section 4 Other Hydraulic Hydraulic Truck Cranes One and three arm hydraulic hydraulic crane system Second, NK-400EIII type full hydraulic truck crane hydraulic system Section 5 Maintenance of Control Valves for Full Hydraulic Truck Cranes First, the maintenance of manual reversing valve Second, the maintenance of other valves Chapter VIII Hydraulic Oil Pump Section 1 Gear Pump First, the structure of the gear pump Second, the working principle of the gear pump Third, disassembly and maintenance Section II Axial Piston Pump A quantitative axial piston pump Second, variable axial piston pump Third, the advantages and disadvantages of axial piston pump Section 3 Hydraulic Pump Drive First, manually operated power take-off Second, electromagnetically controlled pneumatic shift power take-off Third, the oil pump drive shaft Section IV Repair of Hydraulic Pumps First, the common faults and exclusion of hydraulic system Second, hydraulic components maintenance operations attention Third, hydraulic pump maintenance technical standards Fourth, the oil pump running and testing Chapter 9 Hoisting Mechanism Section 1 Hoisting Drive First, the quantitative piston motor with planetary gear reducer Second, variable axial piston motor with gear reducer Third, quantitative axial piston oil motor with planetary pinion gear reducer Fourth, built-in brake hoist motor with planetary pinion gear reducer Fifth, maintenance of winch drive Section 2 winch device One or two sets of drive mechanism hoisting devices Second, a set of drive mechanism winch device Third, hoisting device maintenance standards Fourth, hook and winch wire rope Section 3 Hoisting Hydraulic System Controls First, winch back pressure balance valve Second, winch clutch control valve Third, the control device of the hook free fall Section 4 Common Faults and Exclusion of Hoisting Mechanisms First, the common failure and elimination of the hook free landing Second, the common failures and elimination of the hoisting mechanism Chapter 10 Arm Boom Devices The first box telescopic boom One, box arm Second, the maintenance of the boom Third, the deputy boom Section 2 Boom Drive Hydraulic Cylinder A. Boom Luffing Cylinder Second, arm telescopic hydraulic cylinder Third, the maintenance of the boom-driven hydraulic cylinder Section III Common Faults and Removal of Boom Devices A. Boom luffing system Second, the boom telescopic system Chapter 11 Rotary Machinery Section 1 Central Rotary Seal One, rotary seal Second, rotating brush Section 2 Slewing Bearings One, single row ball type rotary bearing Second, double row ball type rotary bearing Three, cross roller type rotary bearing Section 3 Slewing drive First, radial piston type oil motor with planetary gear reducer Second, the axial piston motor with planetary pinion gear reducer Third, the disassembly and maintenance of the rotary drive device Fourth, the failure and elimination of rotary drive device Section 4 Rotary Hydraulic Control Device First, rotary pilot valve Second, the rotary buffer valve Three, rotary hydraulic valve Chapter Twelve Hydraulic Legs Section 1 Hydraulic Leg Arrangement First, frog legs Second, the H-type leg Section 2 Hydraulic Leg Control Valve First, the structure of the leg control valve Second, the operating principle of the leg control valve Section 3 Vertical Leg Hydraulic Lock One, outrigger one-way hydraulic lock Second, two-way hydraulic lock legs Section IV Outrigger cylinder One, horizontal leg hydraulic cylinder Second, the vertical leg hydraulic cylinder Chapter 13 Electric Devices of Cranes The first section of the general electrical crane First, the dashboard control of electrical appliances Second, the electrical control of the hydraulic system Third, on the car to get off the control of electrical appliances Section 2 Automatic Overload Prevention Device (ACS) First, the structure and working principle of automatic overload prevention device Second, using digital display crane operating performance Third, the limit state of the self-stop device Fourth, self-monitoring of automatic overload prevention device Fifth, automatic over-loading prevention device self-diagnosis Six, fault inspection and exclusion The third article Kato TL-250E-3 type crane Chapter 14 Hydraulic Generating System Section 1 System Overview First, the function of the components Second, system description Section II Hydraulic Pump First, the structure and function Second, the decomposition of the hydraulic pump Third, hydraulic pump parts inspection Fourth, the hydraulic pump assembly Fifth, running test Section III Manual Control Valve First, the structure and function Second, the action description (lifting oil road) Third, dismantling and installation Section III Rotary Joints First, the rotary joint structure Second, the removal of rotary joints Third, the installation of rotary joints Section IV Flow Control Valve First, the flow control valve structure Second, install Third, the hydraulic motor Section 5 Unloading Valve First, the structure and function Second, disassemble and install attention Chapter 15 Outrigger System Section 1 System Overview First, the function of the components Second, system description The second quarter lift cylinder First, the structure and function Second, the front lift cylinder Third, the hydraulic control check valve structure and function Four, telescopic hydraulic cylinder Section 3 Components of the Rotary System Composition System First, the function of the components Second, system description Third, manual control valve structure and function Fourth, the structure and function of the rotary drive Fifth, the disassembly of the rotary drive Six, cleaning and inspection Seven, assembly Eight, slewing bearing Chapter 16 Luffing System Section 1 Summary of Luffing System First, the function of the components Second, system description The second section of variable amplitude hydraulic cylinder First, the luffing system structure Second, removal and installation, decomposition and assembly considerations Third, balance valve structure and function Fourth, disassembly and installation Fifth, decomposition and assembly Chapter 17 Lifting System Section 1 Structure and Overview of Lifting System First, lifting system components distribution Second, the system overview Section II Hydraulic Motor First, the structure and function Second, hydraulic motor disassembly Third, the assembly of hydraulic motor Section III Lifting Agency First, the structure and function Second, the demolition of the lifting mechanism Third, installation precautions Fourth, reducer decomposition, cleaning inspection and assembly The fourth quarter lifting mechanism clutch First, the structure and function Second, decomposition lifting mechanism clutch Second, check Third, the lifting mechanism clutch assembly Section 5 clutch valve and balance valve First, the clutch valve structure Second, the balance valve structure and function Third, dismantling and installation Fourth, decomposition and assembly Section VI Hydraulic Valves and Solenoid Valves First, the hydraulic valve structure Second, install and remove Third, decomposition and assembly Four, solenoid valve structure V. Disassembly and installation Six, decomposition and assembly Section 7 Lifting Brakes and Accumulators First, the structure and function of the lifting mechanism brake band Second, the action description Third, decomposition and assembly Fourth, the accumulator structure and function V. Accumulator Disassembly and Installation Sixth, accumulator decomposition and assembly Section VIII Master Cylinder First, the structure and function Second, the action description Third, decomposition, cleaning, inspection and assembly Fourth, test Fifth, maintenance standards Chapter 18 Telescopic Arm System Section 1 Summary of Components and Systems that Make up the System First, the telescopic arm constitutes a system element layout Second, the function of the telescopic arm system components Third, the system description Section 2 Crane Structure, Disassembly and Installation First, the boom structure Second, the disassembly and installation of the boom Third, the boom disassembles and assembles Fourth, adjust V. Lateral deflection test of the boom The third quarter telescopic arm hydraulic cylinder First, the structure of the telescopic arm hydraulic cylinder Second, disassembly and installation Section 4 hose reel A hose reel structure Second, disassembly and installation precautions Third, decomposition Fourth, assembly Section V Hydraulic Valve Chapter 19 Security Devices Section 1 Safety System Overview I. Distribution of safety device components Second, the function of the components Third, torque limiter data Section 2 Cantilever Length / Angle Detector First, the structure and function Second, replace the wire Third, replace the potentiometer (boom length) Fourth, replace the boom angle meter Section 3 solenoid valve First, the electromagnetic valve structure Second, disassembly and installation Chapter 20 Crane Handling Devices Section 1 Structure and System Overview First, the distribution of components of the lifting operation device Second, the function of the components The second section of the active cylinder First, the structure and function Second, the action description Third, decomposition Fourth, cleaning Fifth, check Six, assembly Seventh, test Third quarter operating cylinder First, the control cylinder structure Second, cleaning Third, check Fourth, assembly The fourth quarter cylinder A cylinder structure Second, decomposition Third, cleaning and inspection Fourth, assembly Fifth, maintenance standards Section 5 solenoid valve First, the electromagnetic valve structure Second, disassemble Third, install Chapter 21 Adjustments and Inspections Section 1 Specifications A hydraulic device Second, reducer Third, the hydraulic circuit part Section 2 Pressure Adjustment (Pressure Related) First, manual control valve (upper) Second, manual control valve (lower) Three, relief relief valve (accumulator charge circuit) Section 3 Pressure Adjustment (Electrical Related) One, switch position Second, the switch pressure adjustment Section IV Adjustment and Inspection of Hydraulic System First, the exhaust system of the hydraulic generation system P4 pump Second, the installation and adjustment of the rotary cylinder Third, the exhaust of the rotary brake circuit IV. Installation and adjustment of the hoisting mechanism system master cylinder V. Lifting of the brake circuit of lifting mechanism Six, lifting mechanism brake belt adjustment VII. Exhaust of the clutch of the lifting mechanism Eight, lifting mechanism clutch adjustment IX. Confirmation of Nitrogen Filling Pressure of Accumulator Tenth, crane operating device

A tower crane is an inverted L-shaped structure that is capable of lifting several tons of weight to precarious heights.

The most striking feature of this crane is that it is self-building and can allow a building to be constructed adjacent to or even around it.

Tower crane mast section ( tower crane mast and tower crane basic mast ) is a steel structure with a normally square section, whose main mission is to provide the tower crane with sufficient height.

Normally it is formed by lattice modules that facilitate the transport of the crane. For assembly, these modules will be joined by screws, all of which will be connected to the projected height. Its shape and dimension vary according to the necessary characteristics of weight and height.

Overall, the mast section is a critical component of a tower crane, providing the necessary height and support for the crane to perform its lifting and moving operations.

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