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Maeda MC-285C Operation Manual
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Maeda MC-285C Operation Manual

Mini-crawler crane
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OPERATION MANUAL
MINI-CRAWLER CRANE
Serial No. P00860 and up
Unsafe use of this machine may cause serious injury or death. Operators
must read this manual before operating this machine. This manual should
be kept near the machine for reference and periodically reviewed by all
personnel who will come into contact with it.
MAEDA has Operation Manual written in some other languages. If a foreign
language manual is necessary, contact your local distributor for availability.
NOTICE
353ME-OM0912-03

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Summary of Contents for Maeda MC-285C

  • Page 1 NOTICE MAEDA has Operation Manual written in some other languages. If a foreign language manual is necessary, contact your local distributor for availability.
  • Page 3 CONTENTS ITEM Page INTRODUCTION 1- 1 1. Foreword 1- 2 2.Safety Information 1- 3 3. Outline of the Machine 1- 4 3.1 Designated type of work 1- 4 3.2 Configuration of the machine 1- 4 3.3 Functions this machine is provided with 1- 5 4.
  • Page 4 ITEM Page 2. Operation and Controls 3-16 2.1 Before starting engine 3-16 2.1.1 Walk-around checks 3-16 2.1.2 Checks before starting 3-18 2.2 Starting the engine 3-37 2.2.1 Starting the engine with main starter switch 3-37 2.2.2 Start the engine with main starter switch in cold weather 3-38 2.2.3 Starting the engine with auxiliary starter switch 3-39...
  • Page 5 ITEM Page 7. Long Term Storage 3-80 7.1 Treatment prior to storage 3-80 7.2 During storage 3-80 7.3 After storage 3-80 8. Handling of Battery 3-81 8.1 Rules for handling the battery 3-81 8.2 Removal and installation the battery 3-82 8.3 Rules for charging the battery 3-82 8.4 Starting with booster cables in use...
  • Page 6 ITEM Page MOMENT LIMITER (TCL-139-1) INTRODUCTION 1- 1 1. Foreword 1- 2 2. Safety Information 1- 3 3. Safety Precautions 1- 4 OPERATION 2- 1 1. Nomenclature of Sections 2- 2 2. Function of Moment Limiter 2- 3 3. Operation of Moment Limiter 2- 5 4.

  • Page 215: Moment Limiter

    MOMENT LIMITER INTRODUCTION 1- 1 1. Foreword 1- 2 2. Safety Information 1- 3 3. Safety Precautions 1- 4 OPERATION 2- 1 1. Nomenclature of Sections 2- 2 2. Function of Moment Limiter 2- 3 3. Operation of Moment Limiter 2- 5 4.
  • Page 217 INTRODUCTION INTRODUCTION OF CONTENTS INTRODUCTION 1. Foreword ................1–2 2. Safety Information ..............1–3 3. Safety Precautions ..............1–4 1 - 1...
  • Page 218 1. FOREWORD INTRODUCTION 1. Foreword We thank you for selecting Moment Limiter TCL-139-1. This manual is the guide book for your safe and efficient use of this machine. This manual describes procedures for operation and service of this machine as well as matters to be strictly observed while performing them.
  • Page 219 INTRODUCTION 2. SAFETY INFORMATION 2. Safety Information For better understanding of this manual and caution plates on the machine, safety related messages are classified as follows:  DANGER Indicates a pressing danger that may result in death or serious injury. Also indicated is the method to avoid such risk.
  • Page 221 INTRODUCTION 3. SAFETY PRECAUTIONS Notes on Moment Limiter Settings ‡ The moment limiter calculates the moment on the assumption that the vehicle is level. If the crane is operated without leveling the vehicle, the moment limiter does not produce an advance warning even when the crane lifts a load close to the rated total load.
  • Page 222 1 - 6...

  • Page 223: Operation

    OPERATION OPERATION OF CONTENTS OPERATION 1. Nomenclature of Sections ............ 2-2 2. Function of Moment Limiter ..........2-3 3. Operation of Moment Limiter ..........2-5 4. Handling of Moment Limiter ..........2-7 2 - 1...
  • Page 226 2. FUNCTION OF MOMENT LIMITER OPERATION 2.2 Abnormality Occurrence Messages Displayed by Moment Limiter When abnormality has occurred in the boom angle detector, the boom length detector or the pressure transmitter, when a wire is broken or when a connecter is disconnected, the moment limiter display console performs self- diagnosis.
  • Page 227 OPERATION 3. OPERATION OF MOMENT LIMITER 3. Operation of Moment Limiter The moment limiter is a device to assist in prevention of an accident in abnormal condition. Operation relying on this device may contrary cause dangerous accidents. Pay enough attentions to keep the crane from stopping automatically during operation. 3.1 Prohibited Operations after Automatic Stop ...
  • Page 228 3. OPERATION OF MOMENT LIMITER OPERATION [3] Restoration Operation from the Automatic Stop As a restoration operation from the automatic stop, implement one of the following operations to reverse the operation that has caused the automatic stop. q Lower the wired hook to ground the hoisted load. Caution Sound XAM09030E w Raise the boom.
  • Page 230 4. HANDLING OF MOMENT LIMITER OPERATION 4.1.1 Switches on Display Panel of Moment Limiter  WARNING Set the moment limiter correctly for respective crane works. The moment limiter calculates the moment based on this setting. Pay enough attentions to this setting because the setting not corresponding to the actual crane work neither give an advance warning nor stop the boom automatically when a load becomes close to the overload magnitude.
  • Page 231 OPERATION 4. HANDLING OF MOMENT LIMITER [3] Boom angle lower limit switch and LED (red) These are used when setting or canceling the boom angle lower limit. BOOM ANGLE SETUP LOWER LIMIT In the status where the lower limit is not set, set the angle for the boom SETUP and press the switch for two seconds or more.
  • Page 232 4. HANDLING OF MOMENT LIMITER OPERATION [5] Lifting height upper limit switch and LED (red) These are used when setting or canceling the lifting height upper limit. The lifting height restriction is done based on the measured height of the LIFTING HEIGHT boom end, while the lifting height on the display panel shows the lifting UPPER LIMIT...
  • Page 233 OPERATION 4. HANDLING OF MOMENT LIMITER [7] CHECK (setting value check) switch This is used to check the setting values set up in the above the items, [2] to [5]. CANCEL CHECK ‡ Press this switch and the CHECK (setting value check) switch. And then the setting values will be displayed in the following steps that proceed every time when the switch is pressed.
  • Page 236 4. HANDLING OF MOMENT LIMITER OPERATION 4.2 Function of Moment Limiter 4.2.1 Overload Warning [1] Safety area (when the actual load is less than 70% of the rated total load). ‡ “ 70” LED (amber) comes on. ‡ The green revolving light comes on. LOAD [2] Advance warning (when the actual load is less than 70 to 100% CAPACITY %...
  • Page 237 OPERATION 4. HANDLING OF MOMENT LIMITER 4.2.3 Overwinding CAUTION When lifting the hook, pay attention to the distance between the hook and the boom. Extending operation to the boom also lifts the hook. Always check the height of the hook when extending the boom. If overwinding of the hook occurs when lifting the hook or extending the boom, the following warnings will be given.
  • Page 238 In MC-305C, when the work selector switch of the vehicle is at the TRAVEL position, the moment limiter power cannot be turned on. CAUTION If the red revolving light does not go off after the function check of the moment limiter is completed, be sure to contact your Maeda distributor. 2 - 16...
  • Page 239 OPERATION 4. HANDLING OF MOMENT LIMITER 4.4 Work Range Set up  WARNING ‡ Even when the work range is restricted by the moment limiter, if the boom is operated at high speed, the setting value may be exceeded. When setting the work range, be sure to set enough allowances around obstacles. Operate the crane at the slow speed.
  • Page 241 4. HANDLING OF MOMENT LIMITER 4.7 Check of Moment Limiter  WARNING When abnormality occurs in the moment limiter, immediately contact your Maeda distributor. Before starting the crane operation, be sure to check the moment limiter. 1. Set the starter motor to ON.
  • Page 242 4.8 Causes of Abnormality in Moment Limiter and Measures to be Taken When an abnormality occurs in the moment limiter, the RATED TOTAL LOAD display of the display panel shows an error code. If the following error codes are shown, contact your Maeda distributor. Error Code Description of Error...

  • Page 243: Remote Control

    REMOTE CONTROL 1. Nomenclature of Various Parts 1.1 Transmitter 1.2 Receiver 1.3 Safety systems 2. Transmitter Operation 2.1 Operation in crane mode 2.2 Automatic hook stowing 3. Nomenclature 3.1 Alarm system 3.2 Engine stop / emergency stop 3.3 Starting and resetting the engine 4.

  • Page 267: Electric Motor Specifications

    ELECTRIC MOTOR SPECIFICATIONS 1. Foreword 2. Safety Information 3. Safety Precautions 4. Location for Affixing Caution Plates 5. Part Names 6. Operation Procedures 6.1 Precaution 6.2 Starting the motor 6.3 Stopping the motor 7. Specifications for MC-285CRME...
  • Page 280 MAEDA MINI-CRAWLER CRANE MC-285C OPERATION MANUAL Document No: 353ME-OM0912-03 Furth edition: December 15, 2009 Issued by Maeda Seisakusyo Co., Ltd. 1095 Onbegawa, Shinonoi Nagano, Nagano 388-8522, Japan No part of this manual can be reproduced in any from without permission...