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: Table Of Contents
CONTENTS ITEM Page INTRODUCTION 1- 1 1. INTRODUCTION 1- 2 2.FOR SAFE USE OF MACHINE 1- 3 3. MACHINE OVERVIEW 1- 4 3.1 SPECIFIED OPERATIONS 1- 4 3.2 MACHINE CONFIGURATION 1- 4 3.3 MACHINE FUNCTIONS 1- 5 4. QUALIFICATION FOR OPERATION 1- 6 4.1 QUALIFICATION FOR CRANE OPERATION 1- 6...
Page 4: Item Page
ITEM Page 1.4.4 NAMES OF MOMENT LIMITER DISPLAY UNIT 3-20 1.4.5 OTHER MOMENT LIMITER FUNCTIONS 3-29 1.4.6 MOMENT LIMITER STARTING STATUS 3-30 1.4.7 MOMENT LIMITER ERROR CAUSES AND ACTIONS TO BE TAKEN 3-31 1.5 OVER HOIST DETECTOR 3-32 1.6 MACHINERY COVER 3-33 2.
Page 5 ITEM Page 5. TRANSPORTATION 3-98 5.1 LOADING/UNLOADING 3-98 5.2 HOISTING MACHINE 3-99 5.3 CAUTIONS IN LOADING MACHINE 3-100 5.4 CAUTIONS DURING TRANSPORTATION 3-100 6. HANDLING IN COLD WEATHER 3-101 6.1 PREPARING FOR LOW TEMPERATURE 3-101 7. LONG-TERM STORAGE 3-103 7.1 BEFORE STORING THE MACHINE 3-103 7.2 DURING STORAGE 3-103...
Page 6 ITEM Page SPECIFICATIONS 5- 1 1. SPECIFICATIONS 5- 2 2. OVERALL DIMENSIONS 5- 4 3. OUTRIGGER SPREAD DIMENSIONS 5- 5 4. RATED TOTAL LOAD CHART 5- 6 5. WORKING RANGE 5- 9 REMOTE CONTROL 6- 1 1. OUTLINE OF REMOTE CONTROLLER 6- 2 1.1 FEATURE 6- 2...
Page 7 ITEM Page 8.3 OPERATION IN CRANE MODE 6-44 8.3.1 SLEWING OPERATION 6-46 8.3.2 BOOM TELESCOPING 6-46 8.3.3 HOOK RAISING AND LOWERING 6-47 8.3.4 BOOM DERRICKING 6-47 8.3.5 SET-UP AND CANCEL MICRO SPEED 6-48 8.3.6 ENGINE STOP AND EMERGENCY STOP PROCEDURE 6-50 8.3.7 ENGINE START AND RESET PROCEDURE 6-50...
Page 9: Introduction
INTRODUCTION 1. INTRODUCTION 1- 2 2．FOR SAFE USE OF MACHINE 1- 3 3. MACHINE OVERVIEW 1- 4 4. QUALIFICATION FOR OPERATION 1- 6 5. TERMINOLOGY 1- 7...
Page 10 • Keep this manual handy for reference when necessary. • Should you lose or damage this manual, contact Maeda or our sales service agency immediately for ordering a new manual.
Page 11 2. FOR SAFE USE OF MACHINE This manual classifies the risks into the following three categories to present the details of the safety labels in easy-to-understand manner. This denotes that there is an imminent hazard which will cause serious personal injury or death. Follow instructions to avoid danger.
Page 12: Machine Overview
3. MACHINE OVERVIEW 3.1 SPECIFIED OPERATIONS This machine is to be used for operation listed below. • Crane operation This machine is a mobile crane with a rubber track travelling dolly (carrier) mounted with a boom crane. This self-propelled crane is capable of moving (travelling) in the worksite and craning an object weighing within the rated total load.
Page 13: Machine Functions
This machine is composed of the units listed below. [1] TRAVELLING DOLLY This is composed of a travelling gear, engine, travelling operation unit, and crane operation unit. [2] CRANE This is composed of a telescoping system, derrick system, hook block, winch system, and outrigger system.
Page 14: Qualification For Operation
4. QUALIFICATION FOR OPERATION • A high incidence of occupational accidents in crane operation has been reported. Be aware that experienced engineers are also no exception. • Warnings and precautions defined in this manual shall be observed for safety assurance during operation of the machine.
Page 15: Terminology
5. TERMINOLOGY 5.1 DEFINITION OF TERMS [1] RATED TOTAL LOAD This is the maximum load that can be applied according to a boom length and angle. The load includes the mass (weight) of hoisting accessories (hooks) and slinging ropes. [2] RATED LOAD This is a load derived by subtracting the mass (weight) of hoisting accessories (hooks) and slinging ropes from the rated total load, which is a withstand load for hoisting.
Page 16: Diagram Of Working Radius And Lifting Height
5.2 DIAGRAM OF WORKING RADIUS AND LIFTING HEIGHT • The diagram of working radius and lifting height shows the relationships between the working radius of this machine, boom angle, and lifting height above the ground with no object hoisted. The diagram has been made allowing for no deflection in the boom. •...
Page 17: Total Rated Load Chart
5.3 TOTAL RATED LOAD CHART • All the values provided in the total rated load chart are based on the assumption that the machine is placed on a level and firm surface. The machine may topple over if proper outrigger setting or ground condition fails to be assured.
Page 18 The total rated load chart provides the maximum loads that the crane is capable of hoisting objects in parallel with the length of the boom. The loads are specified by working radius. [1] BOOM LENGTH The following figures illustrate the condition of the booms, “1.83m Boom”, “2.97m Boom”, “4.21m Boom” and “5.45m Boom”...
Page 19 4. “5.45m Boom”: All the booms are fully extended. “5.45m Boom” is to apply to crane operation with half of the “ mark” on boom (3) passes boom (2). 1-11...
Page 20 [2] OUTRIGGER MAXIMUM EXTENSION • Make sure all the outriggers are placed in the correct position before performing crane operation. It is strictly forbidden to perform any crane operation before you place outriggers. • Always place the machine in a horizontal position with the use of the level when extending the outriggers.
Page 21 [Placement of outrigger position pins when "outriggers are extended to maximum".] Figures below shows the placement of outrigger position pins (12) in a condition that "outriggers are extended to maximum" The left rear outrigger. The left front outrigger. (The right rear outrigger is symmetrical.) (The right front outrigger is symmetrical.) 1-13...
Page 22: Angle Indicator
5.4 ANGLE INDICATOR • Use the Boom angle indicator to check the angle of the boom in operation when the crane is operated from distance; using a remote-controller, for instance. • Before hoisting a load, always see the Rated Total Load Chart to determine the correct boom length (i.e.
Page 23: Safety
SAFETY 1. BASIC PRECAUTIONS 2- 2 2. DRIVING RELATED PRECAUTIONS 2- 7 3. TRANSPORT PRECAUTIONS 2-21 4. BATTERY HANDLING PRECAUTIONS 2-23 5. MAINTENANCE PRECAUTIONS 2-25 6. SAFETY LABEL LOCATIONS 2-32 7. WEEE DIRECTIVE LABEL LOCATIONS 2-39 All the safety precautions defined in this manual should always be read and observed.
Page 24: Basic Precautions
1. BASIC PRECAUTIONS OBSERVE THE MANUAL AND SAFETY LABELS • Read thoroughly and understand this manual as well as the safety labels on various part of this Machine. Attempting to drive/operate without understanding fully may result in wrong operation that may cause personal or equipment accidents.
Page 25 USE OF MACHINE THAT WAS RENTED OR PREVIOUSLY USED BY SOMEONE ELSE Check the following subjects in writing before using any Machine that was rented or previously used by someone else. In addition, check the inspection record table for the maintenance conditions such as the periodic inspections.
Page 26 TEMPORARY STORAGE WHEN ABNORMALITY IS FOUND WITH MACHINE In case the Machine is found with an abnormality and is therefore stored temporarily waiting for service, apply following measures to notify all people in the office that its use is prohibited due to failure. •...
Page 27 SAFETY WHEN REFILLING FUEL • This machine operates using gasoline/LPG. Do not refill with the wrong kind of fuel. Refilling with the wrong fuel may damage the engine. • Always stop the engine before refilling fuel. Refilling the fuel when engine is driving may cause leaked fuel to catch fire from hot muffler or other related parts.
Page 28 BEWARE OF ASBESTOS DUST Inhalation of air containing asbestos may result in lung cancer. This Machine does not use any asbestos, but asbestos may be contained in the wall, ceiling or other part of construction within the work area of this Machine.
Page 29: Driving Related Precautions
2. DRIVING RELATED PRECAUTIONS 2.1 BEFORE STARTING THE ENGINE ESTABLISH SAFETY OF THE WORKING SITE • Confirm that no danger is present at the working site before starting work. • Investigate the ground and road surface condition of the working site and decide the best working method.
Page 30: After Starting The Engine
2.2 AFTER STARTING THE ENGINE INSPECTION AFTER STARTING THE ENGINE Omitting the inspections after starting the engine results in delay to notice any machine abnormalities, and may result in bodily accidents and Machine damage. Inspect a wide area to ensure no obstacles, also ensure people are prevented from approaching the Machine.
Page 31 CAUTIONS WHEN TRAVELLING Always observe the following to prevent serious injuries, fatal accidents when the Machine is travelling. • Do not attempt looking sideways or other dangerous acts when driving. • Do not over speed, start moving suddenly, stop suddenly, swing suddenly or meander since such acts are dangerous.
Page 32 BE CAREFUL OF TRIPPING ON UNSTABLE GROUND Always observe the following to prevent serious injuries and fatal accidents when travelling over unstable ground for unavoidable reason. • Do not enter soft ground area. The Machine is difficult to evacuate from such area. •...
Page 33 PRECAUTIONS IN COLD WEATHER • Remove snow from and defreeze the swing gear, boom and winch related parts, and check the movements before work. • Warm up thoroughly. Attempting to operate the operation levers and switches without enough warm-up will cause the Machine to be slow in reaction, and may result in unexpected accidents.
Page 34: Working With The Crane
2.3 WORKING WITH THE CRANE INSPECTION BEFORE STARTING WORK Check that the safety devices and crane operate properly. • Operate each of the operation levers and switches under no load, and check operations are performed normally. Repair immediately if any abnormality exists. •...
Page 35 CHECK OUTRIGGER PLACEMENT CONDITION Always observe followings to prevent serious injuries and fatal accidents when placing the outriggers. • When placing the outriggers, always keep the Machine level while looking at the level gauge. Occasionally view the level gauge and make sure to keep the Machine level during the crane works as well.
Page 36 BEWARE OF ELECTRICAL CABLE ABOVE • Do not let the Machine come into contact with overhead electrical cables. High voltage cables may inflict electrical shock just by being near to them. • People who throw objects are likely to suffer electrical shocks. Always observe following to prevent accidents.
Page 37 MEASURES WHEN CHARGE ACCIDENT OCCURS When an electrical charge accident occurs do not panic and follow the steps below: １. Report Immediately report to the electricity company or related management company, and receive instructions on how to stop the power transmission, emergency procedures and any other steps. 2.
Page 38 PAY ATTENTION TO WEATHER INFORMATION • In case of thunderstorm, there is a risk of lightning, so abort working with crane, immediately lower the load and contain the boom. • Exposing the hoisted load to wind causes the load to move and causes the Machine to be unstable, thus is dangerous.
Page 39 CAUTIONS WHEN SLINGING • Check the following before hoisting a load. Attempt to hoist the load without checking may result in serious bodily accidents by a drop of the load or tripping. • Observe the values in the total rated load chart. •...
Page 40 CAUTIONS WHEN WORKING WITH THE CRANE • Be sure to verify that the emergency stop cancel switch is at OFF (auto) position before operating the crane. Do not attempt the crane operation when the emergency stop cancel switch is at ON (cancel) position. The emergency stop cancel switch is permitted to be at ON (cancel) position only during the inspection or maintenance works.
Page 41 CAUTIONS WHEN OPERATING WINCH • Do not allow anyone below the hoisted load. • When hoisting a load, always stop at the "takeoff" position where the hoisted load leaves the ground. Check subjects such as load stability and load force, then hoist up the load. •...
Page 42 CAUTIONS DURING SWING OPERATION • Check the safety in the vicinity and blow the horn before swinging. • If the boom derrick angle is small, be careful to prevent the boom from hitting the driver or the Machine. •Operate the swing lever as slowly as possible. Make sure to start smoothly, swing slowly, and stop quietly.
Page 43: Transport Precautions
3. TRANSPORT PRECAUTIONS CAUTIONS WHEN LOADING OR UNLOADING • Be especially careful when loading or unloading the Machine because of the risks. • Select a location that is level and has firm road surface when loading or unloading the Machine. In addition, keep enough distance from the roadside.
Page 44 CAUTIONS WHEN LOADING/UNLOADING WITH A CRANE Be careful of the following when loading or unloading the Machine by hoisting with a crane. • When lifting up the Machine, always set it to the stowage position first, and lift from the lifting bracket (A) on the top of the boom. Always use only this bracket and only one sling wire.
Page 45: Battery Handling Precautions
4. BATTERY HANDLING PRECAUTIONS BATTERY HANDLING PRECAUTIONS The battery fluid includes diluted sulfuric acid, and generates hydrogen gas, and causes bodily accidents and fires if handle improperly, so always observe the followings. • Do not let a cigarette or any fire source approach the battery. •...
Page 46 PRE CAUTIONS WHEN CHARGING THE BATTERY Improper handling when charging the battery may cause the battery to explode. Follow the manuals attached to the Machine and the charger, and always observe the followings. See “Operation 8.3 Cautions in Charging the Battery” for details. •...
Page 47: Maintenance Precautions
5. MAINTENANCE PRECAUTIONS 5.1 PRECAUTIONS BEFORE MAINTENANCE FAILURE REPORT Execution of maintenance not described in our manual may cause unexpected failures. Ask us or our sales service agency for repair. CLEAN BEFORE INSPECTION OR MAINTENANCE • Before starting an inspection or maintenance, clean the Machine and prevent rubbish from entering the Machine to ensure safety during maintenance.
Page 48 HANDLING ILLUMINATION DEVICES • Use explosion-proof illumination devices when inspecting the fuel, oil, battery fluid or similar substance. Failure to use an explosion-proof illumination device may cause leap fire and explosion. • Attempting to work without using an illumination device in a dark place may cause injury or other issue.
Page 49: Precautions During Maintenance
5.2 PRECAUTIONS DURING MAINTENANCE NO UNAUTHORIZED PEOPLE Do not admit anyone other than necessary workers during maintenance. And post a guard as necessary. Be especially careful in case of a polishing, welding work, or digging work. MEASURES UPON FINDING ABNORMALITY DURING INSPECTION •...
Page 50 CAUTIONS WHEN WORKING ABOVE MACHINE • Tidy the footing to avoid falling and always observe following precautions during maintenance above the Machine. • Do not spill oil or grease. • Do not sprawl the tools. • Beware of the footing when walking. •...
Page 51 PRECAUTIONS DURING WELDING REPAIR Weld in a location with good facilities, and, only authorized personnel are permitted to weld. Unauthorized personnel are strictly prohibited since risks such as gas generation, fire and electrical shock are present when welding. The personnel authorized to weld are requested to always observe the followings. •...
Page 52 HIGH PRESSURE OIL CAUTIONS Failure to make sure the pneumatic circuit pressure is relieved before inspection or replacement of a high pressure piping or hose may result in bodily harm. Always observe the followings. • Do not start any inspection or replacement before the pressure dissipates.
Page 53 CAUTIONS WHEN TREATING WASTE Always observe the following to prevent pollution environment of the district inhabited with human or animal. • Do not dispose the waste oil down a water system such as a sewer or a river. • Always drain into a container when draining the oil from the Machine.
Page 54: Safety Label Locations
6. SAFETY LABEL LOCATIONS Keep these labels clean all the time. If lost, apply again or replace with new one. Labels other than the following safety labels do exist, treat the same. 2-32...
Page 55 (1) Minimum hoist load (101-4602600) (2 places) (2) Caution when hoisting machine (350-4589300) (3) High temperature caution (349-4427800) (2 places) (4) Washing caution (350-4539700) (6 places) (5) Engine rotation parts caution (553-4268600) (6) Warning (553-426800) 2-33...
Page 56 (7) Crane operating caution (101-2140500) (8) High temperature caution (553-4267700) (9) No access to crane (349-4422000) (10) Machine total weight (101-4588900) (11) Hook block caution (553-4267400) (2 places) 2-34...
Page 57 (12) Machine hoisting road (101-4594400) (13) Caution when travelling on slope (353-4488400) (14) Total rated load chart (101-3314400) (15) Caution for remote-control receiver (101-4593000) (16) Remote-control receiver error code chart (101-4593100) 2-35...
Page 58 (17)Noise performance (101-4592900) (18) Caution for remote-control receiver plug (300-4214000) (19) Electric shock caution (553-4267300) (20) Caution for crane handling (349-4427100) (21) Hydraulic oil caution (104-4550800) (22) Main switch caution (349-4421400) (23) Caution for over-hoist alarm (350-4432100) 2-36...
Page 59 (24) Slope caution (353-448600) (25) Fire ban (350-4433100) (26) Winch caution (553-4267500) (27) Caution when outrigger setting (353-4488700) (4 places) (28) Outrigger pin hole caution and footing check (101-4593300) (4 places) (29) Caution when driving, inspecting or maintaining (893-4239100) (30) Caution on emergency stop cancel (553-4266400) 2-37...
Page 60 (31) Precautions for use (portable card) (101-2141000) 2-38...
Page 61: Weee Directive Label Locations
7. WEEE DIRECTIVE LABEL LOCATIONS Keep these labels clean all the time. When replacing electrical equipment on which this label is affixed, always apply a new label. [WEEE DERECTIVE LABEL (104-4549500)] [LOCATIONS OF WEEE DIRECTIVE LABELS] (1) Side of the relay box at the moment limiter display backward (2) Lower side of the moment limiter display (3) Side of the moment limiter converter...
Page 62 2-40...
Page 63: Operation
OPERATION 1. MACHINE BY SECTION 3- 2 2. OPERATIONS 3-34 3. HANDLING RUBBER TRACKS 3-93 4. WHAT TO DO WITH TWISTED WINCH WIRE ROPE 3-97 5. TRANSPORTATION 3-98 6. HANDLING IN COLD WEATHER 3-101 7. LONG-TERM STORAGE 3-103 8. HANDLING THE BATTERY 3-104 9.
Page 64: Machine By Section
1. MACHINE BY SECTION 1.1 MACHINE BY UNIT (1) Boom (13) Headlight (2) Boom telescoping cylinder (Inside the boom) (14) Hook block hanger (3) Boom derricking cylinder (15) Moment limiter display unit (4) Boom angle indicator (16) Crane operation unit (5) Winch (17) Hydraulic oil tank (Inside machinery cover) (6) Post...
Page 65: Travelling Operation Unit
1.2 TRAVELLING OPERATION UNIT (1) Left travelling lever (10) Choke Knob (2) Right travelling lever (11) Hour meter (3) Grip (12) Fuse (15A) (4) Acceleration lever (13) Fuse (15A) (5) Engine emergency stop switch (14) Fuse (30A) (6) Travelling lever stand lock lever (15) Battery charge lamp (7) Travelling lever stand (16) Headlight switch...
Page 66: Description Of Each Lever
1.2.1 DESCRIPTION OF EACH LEVER [1] ACCELERATION LEVER (4) Use the lever to adjust the engine speed or output. • Low idling:. Pull the lever toward you. • High speed: Push the lever forward. NOTES • At the desired engine speed for your work, release the lever. It will stop at that position.
Page 67 [3] TRAVELLING LEVER STAND (7) AND LOCK LEVER (6) • Before setting the travelling lever stand to “Travelling position”, be sure to stow the crane and let the machine assume travelling position. Travelling with the crane not in travelling position, may cause it to tip over and cause a serious accident .
Page 68: Description Of Each Switch
1.2.2 DESCRIPTION OF EACH SWITCH [1] STARTER SWITCH (17) Use this switch to start and stop the engine. • OFF : You can insert/remove the key at this position. All the switches in the electrical system are turned off and the engine stops.
Page 69 [5] TRAVELLING HIGH-SPEED SWITCH (9) Use this switch to change the mode of the machine travelling speed. • ON: Push the switch forward. The travelling speed mode changes to high-speed travelling mode. • OFF: Push down the switch toward you. The travelling speed mode changes to low-speed travelling mode.
Page 70: Description Of Each Meter And Lamp
1.2.3 DESCRIPTION OF EACH METER AND LAMP [1] HOUR METER (11) This meter shows the total running hours of the machine. Use this value as the reference for periodical check interval. The value in the meter increases when the engine starts. The value does not change in the condition where the engine stops, though the starter switch is in ON position.
Page 71: Crane Operation Units
1.3 CRANE OPERATION UNIT (1) Slewing lever (12) Working status lamps (2) Boom telescoping lever (13) Engine emergency stop switch (3) Winch lever (14) Auxiliary starter switch (4) Boom derricking lever (15) Hook stowing switch (5) Acceleration lever (16) Horn switch (6) Headlight (17) Outrigger individual setting switch (7) Moment limiter display panel...
Page 72: Description Of Each Lever
1.3.1 DESCRIPTION OF EACH LEVER [1] ACCELERATION LEVER (5) Use the lever to adjust the engine speed or output. • Low idling: Turn the lever to counter clockwise. • Full speed: Turn the lever to clockwise. NOTES • At the desired engine speed for your work, release the lever. It will stop at that position.
Page 73: Description Of Each Switch
1.3.2 DESCRIPTION OF EACH SWITCH [1] EMERGENCY STOP CANCEL SWITCH (9) • Do not turn the emergency stop cancel switch to the ON (cancel) position except in a machine failure condition or when conducting a load test. When the emergency stop cancel switch is in ON position, the moment limiter functions are not available.
Page 74 [3] ENGINE EMERGENCY STOP SWITCH (13) Use this switch in case of an error in the machine to stop the machine for emergency. • ON: Press the switch. The engine stops. • OFF: Turn the switch clockwise (direction of the arrow in the right figure).
Page 75 [6] HORN SWITCH (16) Use this switch to honk the horn. • Honking the horn: Press the switch. NOTES • The horn will stop when you release your finger from the switch. • The horn switch is provided on the travelling control side as well.
Page 76 [9] WORKING STATUS LAMPS (12) Color of each working status lamp shows current load factor (ratio of the hoisting load weight to rated total load). • Red lamp (12A) shows LIMIT WARNING where the load factor is 100 % or higher than the rated total load, when it is lit. •...
Page 77 3-15...
Page 78: Moment Limiter (Overload Detector)
1.4 MOMENT LIMITER (OVERLOAD DETECTOR) 1.4.1 MOMENT LIMITER CONFIGURATION (1) Moment limiter display unit (5) Boom length sensor (right side of boom) (2) Emergency stop cancel switch (6) Boom angle sensor (right side of boom edge) (3) Moment limiter converter (7) Pressure sensor (derricking cylinder) (two) (4) Working status lamp (8) Overwind alarm detector (left side of boom top)
Page 79: Function Of Moment Limiter
1.4.2 FUNCTION OF MOMENT LIMITER • Do not remove, disassemble, or repair detectors. Do not move the detectors to another location from original position. • Should an object hit a detector or you find any damage on a detector, be sure to verify the actuation status of the auto stop.
Page 80: Moment Limiter Operations
1.4.3 MOMENT LIMITER OPERATIONS The moment limiter is a device for unexpected events. Do not rely solely on the device to avoid danger. Pay sufficient attention during the operation not to cause auto-stop of the crane. [1] PROHIBITED ACTIONS AFTER AUTO STOP The following crane operations are prohibited after the crane has stopped automatically due to overloading.
Page 81 4. Recovery Operation from Auto Stop The recovery operation from overloading should be the reverse operation of the crane operation that caused the auto stop. Perform one of the followings. (1) Lower the hook and put down the hoisted load on the ground. (2) Raise the boom.
Page 82: Names Of Moment Limiter Display Unit
1.4.4 NAMES OF MOMENT LIMITER DISPLAY UNIT (1) Boom angle display (16) Outrigger MIN. extension LED (Orange) (2) Lifting height display (17) Outrigger MID. extension LED (Orange) (3) Boom length display Not in use MC-174C. (4) Boom lifting height upper limit LED (Red) (18) Outrigger MAX.
Page 83 [1] DESCRIPTIONS OF SWITCHES ON MOMENT LIMITER DISPLAY UNIT 1. WIRE FALLS SELECTOR SWITCH AND WIRE FALLS DISPLAY LED (ORANGE) • When entering the number of wire falls, verify the actual used number of wire falls and make sure to set up correctly. Entering incorrect number of wire falls may prevent pre-warnings and boom auto-stop even when the overload is being approched, and thus may result in crane damage or machine trip that may result in serious accidents.
Page 84 2. BOOM ANGLE UPPER LIMIT SWITCH AND LED (RED) Use this switch to set or cancel the boom angle upper limit. [SETUP] With no upper limit value being set, set the boom to the angle you would like, and press the switch for 2 seconds. The boom angle at this point is set as the upper limit.
Page 85 3. BOOM ANGLE LOWER LIMIT SWITCH AND LED (RED) Use this switch to set or cancel the boom angle lower limit. [SETUP] With no lower limit value being set, set the boom to the angle you would like, and press the switch for 2 seconds. The boom angle at this point is set as the lower limit.
Page 86 4. WORKING RADIUS UPPER LIMIT SWITCH AND LED (RED) Use this switch to set or cancel the working radius upper limit. [SETUP] With no upper limit value being set, set the boom to the working radius you would like, and press the switch for 2 seconds. The working radius at this point is set as the upper limit.
Page 87 5. LIFTING HEIGHT UPPER LIMIT SWITCH AND LED (RED) Use this switch to set or cancel the lifting height upper limit. While the lifting height is restricted by detecting the height of the tip of the boom, the lifting height on the display panel shows the lifting height when the hook was raised to the over hoist detection status.
Page 88 7. CHECK SWITCH Use this switch to verify the values set in the section 2 to 5 above. • Press this switch. Every time the switch is pressed, the set value will be displayed in the following order. (1) “Boom angle upper limit value” is displayed at the boom angle display section.
Page 89 [2] DESCRIPTIONS OF MOMENT LIMITER DISPLAY UNIT For LEDs not described in this section, see “Operation 1.4.4 Names of moment limiter display unit”. 1. ACTUAL LOAD DISPLAY SECTION This section constantly displays the actual load of the hoisted load during the crane operation. The actual load indicates the total weight of the hoisted load and lifting ring excluding the hook weight.
Page 90 7. OVER WINDING LED (RED) This LED flashes up when the hook is overwound, and issues overwinding warning and causes an automatic stop. This LED also flashes when the hook is stowed during the hook stowing operation. This is normal. 8.
Page 91: Other Moment Limiter Functions
1.4.5 OTHER MOMENT LIMITER FUNCTIONS [1] WORKING ENVELOPE RESTRICTION WARNING When the working envelope gets close to the set restriction value, a warning is issued to notify the operator and people around of the situation. The last status of the set value for the working envelope restriction is memorized even if the starter switch is turned to the OFF position.
Page 92: Moment Limiter Starting Status
[3] BOOM UPPER LIMIT DETECTION When the boom is raised and the boom angle reaches “about 77 degrees”, the boom raising operation stops automatically. [4] BOOM LOWER LIMIT DETECTION When the boom is lowered and the boom angle reaches “about 3 degrees”, the boom lowering operation stops automatically.
Page 93: Moment Limiter Error Causes And Actions To Be Taken
1.4.7 MOMENT LIMITER ERROR CAUSES AND ACTIONS TO BE TAKEN The moment limiter displays an error code at the “rated total load” display section on the display panel to notify the error. If an error code shown in the table below was displayed, contact us or our sales service agency. Error Code Error Details Actions to Be Taken...
Page 94: Over Hoist Detector
1.5 OVER HOIST DETECTOR CAUTION Pay attention to the distance between the hook block and the boom when raising the hook block. The hook block also raises when the boom is extended. Always check the height of the hook block when performing the boom extending operation. (1) Hook block (2) Over hoist detector weight (3) Over hoist detector...
Page 95: Machinery Cover
1.6 MACHINERY COVER • Be sure to stop the engine and remove the starter switch key before removing the machinery cover. • Do not remove the machinery cover immediately after the operation while the engine is still hot. [1] REMOVING MACHINERY COVER Remove the machinery cover with the following procedure when performing inspection/maintenance inside the machinery cover.
Page 96: Operations
2. OPERATIONS 2.1 CHECKS BEFORE OPERATION 2.1.1 CHECKS BEFORE STARTING THE ENGINE (VISIBLE CHECKS) • This machine has a gasoline engine. If it smells of fuel around the engine, the fuel may be leaking. Carefully check for cracks on the fuel hose or fuel hose connections.
Page 97 [1] CHECKING AROUND CRANE • Look around and below the boom and post and look for any oil leak or similar. Be especially careful to check the derricking cylinder and lower part of the winch motor near the post. If you find any abnormality, repair.
Page 98 [5] CHECKING UNDERCARRIAGE PARTS Check each of the frames, rubber tracks, rollers, idlers and sprockets for cracks, excessive deformation & contamination etc. In addition, check bolts, nuts and pins for any looseness, drop or damage etc. If you find any abnormality, repair. [6] CHECKING AROUND TRAVELLING DOLLY •...
Page 99: Checks Before Starting The Engine
2.1.2 CHECKS BEFORE STARTING THE ENGINE Check the following in this section without starting the engine and before starting work every day. [1] CHECKING/REFILLING OIL LEVEL IN ENGINE OIL PAN Securely install the oil level gauge (filler cap) after checking the oil level and refilling with the oil. If the oil level gauge falls during the operation, the hot oil spouts out of the pan, causing burns.
Page 100 [2] CHECKING/REFUELING FUEL LEVEL IN FUEL TANK • This machine uses gasoline (Octane number between 89 and 92). Be extremely careful with fire such as cigarette. • Be sure to stop the engine when refueling. If refueling was done with the engine in operation, the fuel spilled on the section where it gets hot such as muffler can catch fire.
Page 101 [3] CHECKING/REFILLING OIL LEVEL IN HYDRAULIC OIL TANK • The oil may spout out when the cap of the hydraulic oil tank is removed. Loosen the bolts so that the cap is raised a little to allow the release of inner pressure, then remove bolts and remove the cap.
Page 102 [4] CHECKING/REFILLING OIL LEVEL IN SLEWING REDUCTION GEAR CASE Securely tighten the filler plug after refilling with the oil. If the filler plug falls during the operation, the hot oil spouts out of the pan, causing burns. CAUTION • See “Maintenance 5.1 Use of Lubricating Oil According to Temperature” for which oil to be used.
Page 103 [5] CHECKING/REFILLING OIL LEVEL IN WINCH REDUCTION GEAR CASE • For the winch reduction gear case oil, always use "BONNOC M320 (NIPPON OIL EURROPE LIMITED)". When any oil other than as specified is used, that may cause deterioration of the winch brake capacity and result in unforeseen accidnents.
Page 104 [7] CHECKING/REFILLING BATTERY ELECTROLYTE LEVEL • The electrolyte generates combustible gas and presents explosion hazard. Do not bring any fire close to the electrolyte. • The electrolyte is a hazardous substance. Avoid contact with eyes or skin. Should it come into the contact with eyes or skin, wash the affected area with plenty of water and consult a physician.
Page 105 3. Pull out the battery (6) toward you and remove all the six battery caps (7) and refill with the distilled water to the maximum level line (1). When detaching or attaching the battery, be careful that positive (+) terminal of it would not touch any metal parts in that zone.
Page 106 [10] CHECKING/CLEANING/REPLACEMENT AIR CLEANER ELEMENT Do not clean and replace the air cleaner when the engine is running. Potential damage to the engine may occur if disregarded. CAUTION Always avoid using the air cleaner element in a dry condition. Such condition allows particles or dusts to enter into the engine, resulting in a shortened engine life.
Page 107 [11] CHECKING HORN FOR OPERATION 1. Turn the starter switch to the ON position and check the following. 2. Press the horn switch of the top of the travelling lever stand to verify that the horn sounds. If not, the horn may be faulty or the circuit may be open. Ask us or our sales service agency for repair.
Page 108: Checks After Starting The Engine
2.1.3 CHECKS AFTER STARTING THE ENGINE Check the followings in this section after starting the engine and before starting work every day. CAUTION The checks described in this section should be carried out after starting the machine. Refer to "Operation 2.2 Starting the Engine" and later to execute the engine startup, travelling operations, outrigger operations and crane operations.
Page 109 [TENSION ADJUSTMENT] If the “tension check” of the rubber track found the tension lower than standard tension of the rubber track, make adjustments as described below. Working with the loose rubber track (the tension of the rubber track at 15 mm or more) will cause run-off or early wear of the core metal.
Page 110 • TIGHT TENSION (DECREASE TENSION) Inside the rubber track tension adjustment device, the grease is sealed. The grease is under high pressure due to the tension of the rubber track. Making adjustments without observing the followings may cause the grease valve to fly away, resulting in serious accidents.
Page 111 [2] CHECKING RUBBER TRACKS FOR DAMAGE AND WEAR CAUTION Contact us or our sales service agency for determining whether to replace, repair, or keep the rubber track. The following condition requires the repair or replacement of the rubber track. Ask us or our sales service agency for repair/replacement.
Page 112 [3] CHECKING OUTRIGGER OPERATION Be sure to refer to "Operation 2.13 Outrigger Set Up Operation" and "Operation 2.23 Outrigger Stowing Operation", and strictly observe the methods described and cautions given when checking operations of the outriggers. 1. See “Operation 2.13.2 Outrigger Set Up Operation [1] Tasks to be Performed Upon Engine Stop”...
Page 113 [4] CHECKING CRANE OPERATIONS Be sure to set the outriggers at the maximum extension state by referring to " Operation 2.13 Outrigger Set Up Operation" before checking the crane operations. Be sure to refer to the Operation sections between "2.14 Cautions before Crane Operation" and "2.23 Crane Stowing Operation", and strictly observe the methods described and cautions given when checking crane operations.
Page 114 [5] CHECKING OVER HOIST DETECTOR FOR OPERATION • Before checking "over hoist detector for operation" is started, refer to "Operation 2.13 Outrigger Set Up Operation" and install the outriggers at the maximum position according to the procedure in it. • For checking over hoist detector for operation, refer to "Operation 2.14 Cautions before Crane Operation"...
Page 115 [6] CHECKING MOMENT LIMITER FOR OPERATION If you find any abnormality with the moment limiter, immediately contact us or our sales service agency. 1. Turn the starter switch to the ON position. 2. Check with the working status lamp. The red of the lamp lights up for 2 seconds and then the green lights up.
Page 116: Starting The Engine
2.2 STARTING THE ENGINE Never refuel (gasoline) while the engine is in operation. Always stop the engine when refuelling. Verify that there is no one or obstacles around when starting the engine. Honk the horn and start the engine. 2.2.1 NORMAL ENGINE START CAUTION •...
Page 117 5. Push the choke knob forward to return the original position. 3-55...
Page 118: Starting The Engine With Auxiliary Starter Switch
2.2.2 STARTING THE ENGINE WITH AUXILIARY STARTER SWITCH CAUTION • To start the engine with the auxiliary starter switch, make sure that the main starter switich is in ON position. • Do not keep the starter turned for more than 5 seconds. Doing so will accelerate the battery discharge.
Page 119 7. Move back to the Travelling Operation Unit. 8. Push the choke knob forward to return the original position. 3-57...
Page 120: Starting The Engine With Recoil Starter
2.2.3 STARTING THE ENGINE WITH RECOIL STARTER CAUTION • The purpose of the Recoil starter is only for an emergency where the electrical system breaks down; e.g. the the starter does not work or the battery is discharged. Avoid using it when any abnormality is not perceived.
Page 121: Operations And Checks After Starting The Engine
2.3 OPERATIONS AND CHECKS AFTER STARTING THE ENGINE Never refuel (gasoline) while the engine is in operation. Always stop the engine when refueling. • If any abnormal condition takes place during the warm-up operation, immediately press the engine emergency stop switch to stop the engine for emergency. Then, turn the starter switch to the OFF position.
Page 122 5. Refer to "Operation 2.15 Operations before Crane Operations" and slacken the wire rope which fixes the hook block (10) to release it from the hook holder (9), according to the procedure for it. 6. Turn the acceleration lever toward left to operate the engine at medium speed (lever stroke about midway).
Page 123: Breaking-In Machine
2.4 BREAKING-IN MACHINE Perform breaking-in for the period of about the first 250 hours (hours displayed on the service meter). The life of the machine shortens if overloaded operations or tasks are performed before the various sections of the machine are used (run in) to the operation. While this machine is shipped after thorough adjustment and inspection, forcing the machine from the beginning will quickly degrade the functions of engine and crane, shortening their life.
Page 124: Starting Moving The Machine
2.6 STARTING MOVING THE MACHINE • Do not allow anyone around the machine. • Clear away all the obstacles on the travelling path. Check for projections and grooves on the travelling path especially when going backward. Fix the travelling path. •...
Page 125: Changing Machine Travelling Mode
2.7 CHANGING MACHINE TRAVELLING MODE • Choose the appropriate travelling speed for the ground and road surface conditions while driving the machine. You can operate the travelling levers or choose “high-speed travelling mode” or “low-speed travelling mode” with the operation position of the travelling high-speed switch to change the travelling speed.
Page 126: Stopping/Parking The Machine
[2] SPIN TURNS • LEFT SPIN TURN Tilt the right travelling lever forward while tilting the left travelling lever toward you to rotate the left and right rubber tracks in the opposite direction for left spin turn. • RIGHT SPIN TURN Tilt the left travelling lever forward while tilting the right travelling lever toward you to rotate the left and right rubber tracks in the opposite direction for right spin turn.
Page 127: Stopping The Engine
2.10 STOPPING THE ENGINE CAUTION • Stopping the engine before it sufficiently cools down may shorten the life of engine units. Do not stop the engine suddenly except for emergency. • When the engine is overheated, do not stop the engine suddenly. Change the engine speed to low speed, and gradually cool down the engine before stopping the engine.
Page 128: Cautions While Driving
2.12 CAUTIONS WHILE DRIVING Not observing these cautions while driving will result in serious accidents. [1] CAUTIONS WHILE DRIVING • When travelling, stow hook and outrigger, and make sure the surrounding area is safe. • When stowing outriggers, insert each of the position pins completely into lock.
Page 129 [3] CAUTIONS ON UPWARD/DOWNWARD SLOPE • If the machine tilts for “15 degrees” or more forward, backward, left, or right while travelling, the inclination alarm buzzer sounds. When sounding the alarm buzzer, do not travel on the slope of more inclination. The machine may overturn. •...
Page 130: Outrigger Set Up Operation
2.13 OUTRIGGER SET UP OPERATION • GROUND FOR SETTING OUTRIGGERS Always set the outriggers on level, safe and solid ground. Performing the crane operation without setting the outriggers can contribute to the overturning of the machine. • EXTENDING AND SETTING THE OUTRIGGERS •...
Page 131 • SELECTING LOCATION TO SET OUTRIGGERS • When setting the outriggers on the structural objects such as construction site or concrete floor, verify in advance that the surface where the outriggers will be set has sufficient strength. Insufficient strength in the setting surface will result in overturning or fall of machine due to collapse of the setting surface.
Page 132: Name Of Outrigger Components
2.13.1 NAME OF OUTRIGGER COMPONENTS (1) Outrigger rotary (7) Inner box position pin (2) Outrigger cylinder (8) Snap pin (3) Outrigger base (9) Snap pin (4) Outrigger top (10) Outrigger top position pin (5) Inner box (11) Stay (Damper type) (6) Outrigger adapter (Tray) (12) Rotary position pin 2.13.2 OUTRIGGER SET UP OPERATION...
Page 133 Applicable to “outrigger (1) and (4)” 1. Pull the position pin (12) out of the outrigger rotary (1) and rotate the outrigger rotary outward. 2. Rotate outrigger rotary that sticker "Standard/Stow" affixed to its side and the sticker "Standard" affixed to the side of frame are aligned. 3.
Page 134 7. Pull out the snap pin (9) from the position pin (10) of the outrigger base (3) to pull out the position pin (10). 8. Lift up the outrigger top (4) to align the hole in the outrigger top (4) and the hole of the top position in the outrigger base (3) (as indicated by the sticker, ”Extend to max.”).
Page 135 [2] TASKS TO BE PERFORMED AFTER STARTING THE ENGINE • The overturning alarm buzzer sounds if the machine tilts for “3 degrees” or more when setting the outriggers. Operate the outrigger switches and adjust the machine to be leveled until the alarm buzzer stops.
Page 136 When operating two individual outrigger operation switches at the same time, choose two front switches (outrigger (2) and (3)) or two rear switches (outrigger (1) and (4)). Operating two left or right switches at the same time will suddenly raise two outriggers on one side, causing the machine to overturn.
Page 137: Cautions Before Crane Operation
2.14 CAUTIONS BEFORE CRANE OPERATION • Not observing these cautions before operation may result in serious accidents. • It takes a certain moment for the over hoist detector to effect automatic interruption after it detects an over hoisting condition. Therefore, when the Over hoist and moment limiter alarm buzzer beeps, always release all of the operation levers to the NEUTRAL position.
Page 138: Operations Before Crane Operations
2.15 OPERATIONS BEFORE CRANE OPERATIONS CAUTION • For manipulation of each cranes operation levers and outrigger setting switches, set the travelling lever stand in the Travelling Operation Unit to the "Crane Operation Position". When the travelling lever stand is in "Travelling" position, each lever or outrigger setting switch is not availble for its operation.
Page 139: Crane Operation Position
2.16 CRANE OPERATION POSITION Take the crane operation position by following the procedure below when switching to the operation from the state described in “Operation 2.15 Operations before Crane Operations” in the Operation. 1. Turn the winch lever (3) to the "Lowering" position until the hook block is lowered and the lever (12) of the over hoist detector (11) is released to "Lower"...
Page 140: Hook Raising/Lowering Operation
2.17 HOOK RAISING/LOWERING OPERATION • With the boom deflection, the hoisted load slightly shifts forward. Notify the workers around such as slinging operators. • When hoisting a load, always stop hoisting once, when the load is raised above the ground. When such a practice is not exercised and the load is hoisted too quickly, that may cause a hazardous condition including breakage of the machine or tipping of it.
Page 141: Boom Derricking Operation
2.18 BOOM DERRICKING OPERATION • Operate the boom derricking lever as slowly as possible. Sudden lever operation especially while hoisting a load will cause the load to swing, giving a great impact to the machine, and thus may break the crane or overturn the machine. •...
Page 142: Boom Telescoping Operation
2.19 BOOM TELESCOPING OPERATION • Operate the boom telescoping lever as slowly as possible. Sudden lever operation especially while hoisting a load will cause the load to swing, giving a great impact to the machine, and thus may break the crane or overturn the machine. •...
Page 143: Slewing Operation
2.20 SLEWING OPERATION • Check the safety around and honk the horn before slewing. • Operate the slewing lever as slowly as possible. Start smoothly, slew at low speed, and stop gently. Sudden lever operation especially while hoisting a load will cause the load to swing, causing the loss of stability in the machine, and thus may break the crane or overturn the machine.
Page 144: Acceleration Operation
2.21 ACCELERATION OPERATION Accelerating the operation speed of the crane functions more than is necessary is dangerous. CAUTION Decrease the speed in the beginning or near the end of an operation. Change the speed to low speed or high speed according to the load. Operate the acceleration lever (6) as follows.
Page 145: Crane Stowing Operation
2.22 CRANE STOWING OPERATION •The hook stowing switch cancels the auto stop function of the over hoist detector. Operate the winch lever carefully not to let the hook block hit the boom when stowing the hook block. • Use this hook stowing switch only for the purpose to stow the hook. •...
Page 146 4. With the boom stowing switch placed to the ON position, operate the boom derricking lever (4) again to the “LOWER” (push forward) side to stow the boom. NOTES The boom shall be fully lowered in this operation. During this operation take care not be trapped by the hook block.
Page 147: Outrigger Stowing Operation
2.23 OUTRIGGER STOWING OPERATION • Do not let people approach the machine when stowing the outriggers. Staying around the machine may result in serious accidents such as getting caught between an outrigger and the main unit of the machine. • Verify that there is nothing under the rubber tracks when stowing the outriggers. If there is any object under the rubber tracks, the machine may overturn and serious accidents may occur when stowing the outriggers.
Page 148 [1] TASKS TO BE PERFORMED AFTER STARTING THE ENGINE • Avoid using the Outrigger collective setting switch in a condition where installation height of each outrigger is different. Its use may make the machine significantly inclined or overturn. • When stowing outriggers, be careful to avoid your body or clothes being trapped between outriggers and the machine body.
Page 149 When 4 outriggers are installed unevenly in the different heights, operate the ourtigger individual setting switch as below: When you control 2 of the individual switches at one time, only 2 in front (outriggers [(1)] and [(4)]) or only 2 in rear (outriggers [(2)] and [(3)]) shall be operated at the same time.
Page 150 7. Push down the auxiliary starter switch to the STOP position. The engine stops. 8. Turn the main starter switch key to the OFF position and remove the main starter switch key. 9. Pull up the lock lever (6) before pressing the whole lever stand (7) down to the “Travelling position”, then release the lock lever (6).
Page 151 [2] TASKS TO BE PERFORMED UPON THE ENGINE STOP 1. Remove the snap pin (8) of the position pin (7) tip of the outrigger top (4) and pull out the position pin (7). 2. Push the innner box (5) into the outrigger top (4) and align the hole of the outrigger top (4) and the hole nearest to the end of the innner box (5).
Page 152 Applicable to “Outrigger (2) and (3)” 10. Pull out the position pin (12) of the outrigger rotary (1) and rotate the outrigger rotary (1) inward. 11. Rotate the outrigger rotary (1) so that the sticker "Standard" affixed to its side and the sticker "Stow" affixed to the side of frame are aligned.
Page 153: Do's And Don'ts During Crane Operations
2.24 DO’S AND DON’TS DURING CRANE OPERATIONS • Always set the outriggers on level, solid ground when performing the crane operations. • Never perform travelling hoist or the crane operations without setting the outriggers. The machine will be unstable and overturn, leading to serious accidents. •...
Page 154 [5] DON’T ALLOW ACCESS INTO WORKING RADIUS Do not let people into the working radius, such as permitting an operator to go under the hoisted load. [6] DON’T USE FOR ANYTHING OTHER THAN MAIN APPLICATIONS Do not move people up/down with the crane. [7] DON’T PERFORM UNREASONABLE OPERATIONS Operations requiring more than the machine performance can cause accidents.
Page 155: Handling Rubber Tracks
3. HANDLING RUBBER TRACKS 3.1 GOOD USE While the rubber tracks demonstrate many advantages thanks to its performance characteristic to the material, it has a weak point in strength. Therefore, we would like you to sufficiently understand the characteristics of the rubber tracks and to respect the do’s and don’ts and observe the cautions on handling so that the life of the rubber tracks can be extended and its advantages exercised.
Page 156: Prohibitions And Cautions When Using Rubber Tracks
3.3 PROHIBITIONS AND CAUTIONS WHEN USING RUBBER TRACKS Not observing these cautions in using rubber tracks will cause serious accidents or damage to the rubber tracks. Keep the followings in mind during the operation. • Working and slewing on the ground with broken stones, hard rock ground with great irregularity, reinforcing steels, iron scraps, and near the edge of the steel plates will damage the rubber tracks.
Page 157 • Avoid making spin turns on the concrete surface. Sudden steering cause’s early wear or defects to the rubber tracks. Avoid making sudden steering whenever possible. • Do not operate the machine in a way that the edge of the rubber tracks is pressed against concrete and walls.
Page 158 • When handling food such as salt, sugar, wheat, and soybeans, some pieces of wire or rubber may be mixed in the food if there is any deep scratch on the rubber tracks. Use the rubber tracks after repairing the cracked rubber. •...
Page 159: What To Do With Twisted Winch Wire Rope
4. WHAT TO DO WITH TWISTED WINCH WIRE ROPE Be sure to wear a pair of thick leather working gloves when handling wire ropes. CAUTION Change the winding direction of the wire rope (reverse the hook block side and winch drum side) from time to time to extend the life of the wire rope.
Page 160: Transportation
5. TRANSPORTATION Observe the related laws and regulations and transport the machine safely. 5.1 LOADING/UNLOADING • See "Specifications 1.1 Specification List " in the Dimension for the dimensions and mass of the machine. • Select and use the ramp boards that satisfy the following conditions. •...
Page 161: Hoisting Machine
5.2 HOISTING MACHINE • When lifting up the Machine, always set it to the stowage position first, and lift from the lifting bracket (A) on the top of the boom. Only use this bracket and only one sling wire. Any other manner than this, i.e. from other lifting brackets or multiple sling wires, may cause droppage of the machine and result serious injury or death.
Page 162: Cautions In Loading Machine
Hoist the machine on solid and flat ground using the following procedure. 1. See “Operation 2.5 Machine Travelling Position” and put the machine in the “Travelling position”. 2. Verify that the position pins (four) are securely inserted in the outrigger rotary joint of the 4 outriggers. 3.
Page 163: Handling In Cold Weather
6. HANDLING IN COLD WEATHER 6.1 PREPARING FOR LOW TEMPERATURE When the temperature goes down, the machine may have some difficulty in starting. Take the following actions. [1] LUBRICATION Change the oil to the one with low viscosity. See “Maintenance 5.1 Use of Lubricating Oil According to Temperature”...
Page 164 [3] CAUTIONS AFTER COMPLETING THE OPERATION Observe the following to prevent the machine from not being able to function the next morning because of deposits such as dirt, water and materials being frozen around the feet. • Remove the dirt and water on the machine. Keep the hydraulic cylinder rod surface especially clean to prevent seal from being damaged with the dirt coming into the seal together with the water drops.
Page 165: Long-Term Storage
7. LONG-TERM STORAGE 7.1 BEFORE STORING THE MACHINE CAUTION The machine shall take the position shown in the diagram on the right during the long-term storage to protect the cylinder rod. See “Operation 2.5 Machine Travelling Position” for travelling position. (To prevent rust on the cylinder rod) Store the machine as described below for long-term storage.
Page 166: Handling The Battery
8. HANDLING THE BATTERY Observe the followings when handling the battery. • Stop the engine and turn the main starter switch to the OFF position when checking/ handling the battery. • Wipe off the dust accumulated on the top of the battery with a moistened cloth. •...
Page 167: Removing/Installing The Battery
8.2 REMOVING/INSTALLING THE BATTERY CAUTION Ensure that the battery does not move after securing the battery. If it moves, secure it again. [1] REMOVAL 1. See “Operation 1.6 Machinery Cover” to remove machinery cover. 2. Remove the wing nut (4) and the remove rod (5) and battery holder (3).
Page 168: Cautions When Charging The Battery
8.3 CAUTIONS WHEN CHARGING THE BATTERY When charging the battery mounted to the machine • Abnormal voltage may be applied to the alternator, resulting in the breakage. Disconnect the battery terminal wires before charging the battery. • Remove all the fluid plugs to release the gas generated. •...
Page 169: Starting The Engine With Booster Cable
8.4 STARTING THE ENGINE WITH BOOSTER CABLE Start the engine with booster cable as described below. [1] CAUTIONS IN CONNECTING/DISCONNECTING BOOSTER CABLE • Never let the (+) terminal and (-) terminal come into contact with the other when connecting the cable. •...
Page 170 [3] STARTING THE ENGINE Ensure that the operation levers are at the NEUTRAL position. If the safety lock lever is equipped, also verify that the safety lock lever is at the lock position. 1. Ensure that the clips are securely connected to the battery terminals. 2.
Page 171: Troubleshooting
9. TROUBLESHOOTING 9.1 ELECTRICAL COMPONENTS • Make sure that you contact us or our sales service agency for the actions indicated in parentheses in the Actions field. • Ask our sales service agency for repair if you suspect other abnormality or causes than those given below.
Page 172: Engine
9.3 ENGINE • Make sure that you contact us or our sales service agency for the actions indicated in parentheses in the Actions field. • Ask our sales service agency for repair if you suspect other abnormality or causes than those given below.
Page 173: Inspection And Maintenance
INSPECTION AND MAINTENANCE 1. PRECAUTIONS FOR MAINTENANCE 4- 2 2. BASIC MAINTENANCE 4- 4 3. LEGAL INSPECTION 4- 6 4. CONSUMABLES 4- 6 5. LUBRICATING OIL 4- 7 6. ACCESSORY TOOLS AND STANDARD TIGHTENING TORQUE 4- 8 7. INSPECTION AND MAINTENANCE LIST 4-10 8.
Page 174: Precautions For Maintenance
Always use Maeda genuine parts as specified in the parts catalogue for part replacement. [3] USE PURE GREASE Always use Maeda pure grease. The viscosity of grease must conform to specifications according to ambient temperature. [4] USE CLEAN OIL AND GREASE Always use clean oil, grease, and container to keep impurities out of them.
Page 175 • Be sure to clean the electrical parts, especially the starter and flywheel magnet, to protect them from dust. [20] DO NOT MIX OIL Never use different types of oil together under any circumstance. Replace the oil entirely when replenishing a different type of oil. Always use Maeda genuine parts for part replacement.
Page 176: Basic Maintenance
2. BASIC MAINTENANCE [1] OIL HANDLING • Oil is used under extremely harsh conditions (high temperature, high pressure) in the engine and working device, which causes the oil to undergo deterioration with operating time. Always use oil that meets requirements such as grade and operating temperature defined in the operation manual.
Page 177 • As to a replacement filter, always unpack it immediately prior to its use. • Always use Maeda genuine filters. [6] ELECTRICAL PART HANDLING • The electrical parts are susceptible to water damage and damaged coating. A current leakage is developed if the electrical parts are wet or have damaged coating, which causes the machine to go out of order and malfunction.
Page 178: Legal Inspection
Consumables such as a filter element and wire rope are to be replaced upon periodic maintenance or prior to the wear limit. Proper replacement of consumables delivers increased economy in machine use. Always use Maeda genuine parts for part replacement. See the parts catalogue for part numbers when ordering parts.
Page 179: Lubricating Oil
5. LUBRICATING OIL 5.1 USE OF LUBRICATING OIL ACCORDING TO TEMPERATURES Use of lubricating oil should vary with changes in temperature. • A specified oil quantity is defined as a total quantity of oil including that for unit piping, and a replacement oil quantity is defined as a quantity of oil to be replaced at inspection and maintenance.
Page 180: Accessory Tools
6. ACCESSORY TOOLS AND STANDARD TIGHTENING TORQUE 6.1 ACCESSORY TOOLS The following tools come with this machine: Tool Remarks Box wrench for spark plug Width across flat: 21 mm Screw driver (Philips) 6.2 STANDARD TIGHTENING TORQUE LIST Torque the metric bolts and nuts with no specific indication to the values shown in this table.
Page 181 [Table 2] [3] Bolt marked with “12.9” (strength [4] Other bolts Nominal Width classification) on its head size across flat Tightening torque {N▪m (kgf▪m)} Tightening torque {N▪m (kgf▪m)} (a; mm) (b; mm) Target value Tolerance Target value Tolerance 13.0 (1.30) 11.1-15.0 (1.11-1.50) 3.0 (0.30) 2.6-3.5 (0.26-0.35)
Page 182: Inspection And Maintenance List
7. INSPECTION AND MAINTENANCE LIST Inspection and maintenance items Page 8.1 INITIAL 10 HOUR MAINTENANCE (Only the first maintenance of a new machine) 4-12 [1] GREASING MACHINE UNITS 4-24 [2] GREASING BOOM UNITS 4-26 8.2 INITIAL 25 HOUR MAINTENANCE (Only the first maintenance of a new machine) 4-12 [1] OIL REPLACEMENT IN ENGINE OIL PAN 4-27...
Page 183 Inspection and maintenance items Page 8.5.3 CHECKS AFTER STARTING THE ENGINE 3-46 (See Operation 2.1.3 CHECS AFTER STARTING THE ENGINE) [1] CHECKING/ADJUSTING RUBBER TRACK TENSION 3-46 [2] CHECKING RUBBER TRACK FOR DAMAGE AND WEAR 3-49 [3] CHECKING OUTRIGGER OPERATION 3-50 [4] CHECKING CRANE OPERATIONS 3-51 [5] CHECKING OVER HOIST DETECTOR FOR OPERATION...
Page 184: Maintenance Procedures
8. MAINTENANCE PROCEDURES 8.1 INITIAL 10 HOUR MAINTENANCE The following maintenance should be performed after 10-hour operation, limited to the first maintenance of a new machine. [1] GREASING MACHINE UNITS See “Maintenance 8.7 Every 50 Hours” for maintenance items and procedure. [2] GREASING BOOM UNITS See “Maintenance 8.7 Every 50 Hours”...
Page 185: Irregular Maintenance
8.6 IRREGULAR MAINTENANCE [1] REPLACEMENT RUBBER TRACK • The inside of the tension adjusting device of the rubber track is greased. Grease is under high pressure associated with the tension of the rubber track. Failure to follow precautions stated below when removing grease may lead to a serious accident due to the grease valve popping out.
Page 186 [INSTALLATION RUBBER TRACK] • Have a grease gun available. • Have a steel pipe available. 1. See “Operation 2.13 Outrigger Set Up Operation” to set up the outriggers and raise the rubber track again for about 50mm from the ground. 2.
Page 187 [2] REPLACEMENT WINCH WIRE ROPE [BENCHMARK FOR REPLACING WIRE ROPES] Always wear work leather gloves when replacing the wire rope. CAUTION • The benchmark for replacing wire ropes is common to all the wire ropes for winching, telescoping the boom, and slinging. •...
Page 188 [REMOVAL WINCH WIRE ROPE] Use the following procedure to remove the wire rope. 1. Place the machine on a level and solid surface. 2. Place the boom telescoping lever in the “Extend” position (push forward) to extend the boom slightly. 3.
Page 189 [INSTALATION WINCH WIRE ROPE] Be sure to attach the rope wedge properly to secure the wire rope. Potential serious accident may occur due to detachment of the wire rope during crane operation if disregarded. CAUTION • Avoid irregular winding of the wire rope on the winch drum. •...
Page 190 5. Secure the end of the wire rope (5) to the wedge socket (3), following the procedure provided below. (1) Draw the wire rope (5) through the wedge socket (3) as shown on the right. (2) With the rope wedge (7) in position (a), yank at the wire rope (5) in the direction indicated by the arrow.
Page 191 [3] CHECKING/ADJUSTMENT BOOM TELESCOPING WIRE ROPE Always wear work leather gloves when replacing the wire rope. [CHECKING BOOM TELESCOPING WIRE ROPE] When the telescoping wire rope (1) shows a condition as shown in the figure below, adjust is as follows: 1.
Page 192 [ADJUSTMENT OF BOOM TELESCOPING WIRE ROPE] CAUTION The wire ropes must be adjusted to the correct tightness. A boom extending wire rope (1 piece) and retracting wire rope (1 piece) are used in this machine. Adjustment of these wire ropes must conform to the specified procedure. Use the following procedure for wire rope adjustment.
Page 193 4. Adjustment of boom extending wire rope (1) (1) With the lock nut (2) loose, turn the adjusting nut (3) in the direction that the extending wire rope (1) becomes tight (clockwise) to provide tightening to the verge of the extension of No.4 boom.
Page 194 [4] ENGINE MAINTENANCE FOR LONG-TERM STORAGE • This machine uses gasoline (Octane number between 89 and 92). Be extremely careful with fire such as cigarette. • To drain the fuel, always stop the engine and allow it to be sufficiently cooled. When fuel is drained in a condition just after the engine stops and it remains still hot, spilled fuel may ignite when it touches hot parts, such as a muffler.
Page 195 4-23...
Page 196: Maintenance Every 50 Hours
8.7 MAINTENANCE EVERY 50 HOURS [1] GREASING MACHINE UNITS CAUTION • Grease type varies with greasing points. Failure to grease properly may cause the machine to shorten its useful life. See the following table for grease types. • Greasing a new machine is required once every 10 hours until the machine attains the first 100 hours of operation that initial fit emerges.
Page 197 4-25...
Page 198 [2] GREASING BOOM UNITS CAUTION • Grease type varies with greasing points. Failure to grease properly may cause the machine to shorten its useful life. See the following table for grease types. • Greasing a new machine is required once every 10 hours until the machine attains the first 100 hours of operation that initial fit emerges.
Page 199 [3] OIL REPLACEMENT IN ENGINE OIL PAN • Make sure the oil level gauge is secured properly after inspection and replenishment of the oil. Potential fall of the oil level gauge during operation may occur if disregarded, which could cause boiling oil to gush resulting in burns. •...
Page 200 [4] CHECKING/CLEANING FUEL FILTER POT • The fuel filter pot has fuel (gasoline) inside. Be extremely careful of fire such as cigarette when cleaning the fuel filter pot. • If the fuel spills when the fuel filter pot is removed, thoroughly wipe it off. CAUTION Water or dust accumulated inside the fuel filter pot will cause engine failure.
Page 201 [5] CHECKING/CLEANING ENGINE SPARK PLUG CAUTION Make sure that the specified plug is used. Those other than specified may cause deficiency in or shorten the useful life of engine. • Specified spark plug: NGK BPR6HS • Box wrench and handle for spark plug removal •...
Page 202: Maintenance Every 100 Hours
8.8 MAINTENANCE EVERY 100 HOURS Perform this maintenance in tandem with maintenance every 50 hour. [1] CLEANING OF CARBON IN THE COMBUSTION CHAMBER Cleaning of carbon require special tools. Contact us or our sales service agency to request inspection and repair. [2] INSPECTION/ADJUSTMENT ENGINE VALVE CLEARANCE Inspection and adjustment of valve clearance require special tools.
Page 203: Maintenance Every 500 Hours
8.10 MAINTENANCE EVERY 500 HOURS Perform this maintenance in tandem with maintenance every 50/100/250 hours. [1] REPLACEMENT HYDRAULIC OIL RETURN FILTER CARTRIDGE AND SUCTION FILTER • All the parts will be at elevated temperatures immediately after engine operation, which urges you not to replace the filter.
Page 204 7. Remove the 4 mounting bolts (8) and remove the hydraulic oil return filter (6) on top of the hydraulic oil tank. 8. Put the new hydraulic oil return filter (6) in place with liquid packing applied to the packing (7). Secure the hydraulic oil return filter (6) with the 4 mounting bolts (8).
Page 205: Maintenance Every 1000 Hours
8.11 MAINTENANCE EVERY 1000 HOURS Perform this maintenance in tandem with maintenance every 50/100/250/500 hours. [1] OIL REPLACEMENT IN HYDRAULIC OIL TANK • All the parts will be at elevated temperatures immediately after engine operation, which urges you not to replace the filter. Always perform replacement with the engine cold. •...
Page 206 8. Check the oil level gauge (G) and replenish the hydraulic oil until it reaches the level point (red point). 9. After refilling with oil, Set the filler cap (F) and rubber packing to the filler opening position and tighten the 4 mounting bolts (1) securely.
Page 207 [2] OIL REPLACEMENT IN SLEWING REDUCTION GEAR CASE The drain plug of the slewing reduction gear case is located directly underneath the machine. Place the outriggers and raise the machine fully from the ground to allow a drain pan to be placed under the machine for draining oil.
Page 208 9. Remove the Filler plug (F) of the slewing reduction gear case , and supply the gear oil to the slewing reduction gear case through the filler plug (F) hole. NOTES Oil shall be refilled until it almost reaches the plug hole mouth. 10.
Page 209 [3] OIL REPLACEMENT IN WINCH REDUCTION GEAR CASE • For the winch reduction gear case oil, always use "BONNOC M320 (NIPPON OIL EUROPE LIMITED)". When any oil other than as specified is used, that may cause deterioration of the winch brake capacity to result in unforeseen accidents.
Page 210 [4] OIL REPLACEMENT IN TRAVELLING MOTOR REDUCTION GEAR CASE CAUTION • See “Maintenance 5.1 Use of Lubricating Oil According to Temperature” for which oil to be used. • Use seal tape, etc. at the thread of the filler plug to stop the oil leak and securely tighten the plug after refilling with the oil.
Page 211: Specifications
SPECIFICATIONS 1. SPECIFICATIONS 2. OVERALL DIMENSIONS 3. OUTRIGGER SPREAD DIMENSIONS 4. RATED TOTAL LOAD CHART 5. WORKING RANGE...
Page 212: Specifications
1. SPECIFICATIONS System / Item MC-174CRM Machine mass 1290kg Overall length  width  height 2000mm x 590mm x 1300mm Mass and Distance between idler and 1044mm dimensions sprocket Track gauge 410mm Track width 180mm Maximum rated total load ...
Page 213 System / Item MC-174C Model Mitsubishi GM401LE gasoline engine Type 1-cylinder, Air cooled, 4-cycle Engine Displacement 0.391 litres (391cc) Rated output (continuous) 6.6kW/1800min (9.0PS/1800rpm) Lead-free gasoline/6 litres Fuel tank capacity Battery Model 30A19R (DC12V x 1 piece) Over hoist detector/automatic stop device, hydraulic safety valve, hydraulic automatic locking Safety device, slinging rope detachment protector, alarm buzzer, level, crane inclination alarm (travel device...
Page 214: Overall Dimensions
2. OVERALL DIMENSIONS...
Page 215: Outrigger Spread Dimensions
3. OUTRIGGER SPREAD DIMENSIONS...
Page 216: Rated Total Load Chart
4. RATED TOTAL LOAD CHART The Rated Total Load Chart is based on actual working radius with the bending of boom attributable to load reflected and is shown with the mass of hook block (20kg) included. 4.1 RATED TOTAL LOAD CHART FOR 4 FALLS OUTRIGGER EXTENDED TO MAXIMUM 1.83m BOOM 2.97m BOOM...
Page 217 4.2 RATED TOTAL LOAD CHART FOR 2 FALLS OUTRIGGER EXTENDED TO MAXIMUM 1.83m BOOM 2.97m BOOM 4.21m BOOM 5.45m BOOM Working Total rated Working Total rated Working Total rated Working Total rated radius (m) load (kg) radius (m) load (kg) radius (m) load (kg) radius (m)
Page 218 4.3 RATED TOTAL LOAD CHART FOR SINGLE FALL OUTRIGGER EXTENDED TO MAXIMUM 1.83m BOOM 2.97m BOOM 4.21m BOOM 5.45m BOOM Working Total rated Working Total rated Working Total rated Working Total rated radius (m) load (kg) radius (m) load (kg) radius (m) load (kg) radius (m)
Page 219: Working Range
5. WORKING RANGE...
Page 220 5-10...
Page 221: Remote Control
REMOTE CONTROL 1. OUTLINE OF REMOTE CONTROLLER 6- 2 2. SAFETY PRECAUTIONS 6- 4 3. LOCATIONS OF SAFETY LABELS 6- 8 4. COMPONENTS OF THE TRANSMITTER 6-10 5. COMPONENTS OF THE RECEIVER 6-15 6. SETTING UP OPERATION MODES OF TRANSMITTER 6-18 7.
Page 222: Outline Of Remote Controller
1. OUTLINE OF REMOTE CONTROLLER 1.1 FEATURE This system is designed principally for the following purposes: This Remote Controller includes both Transmitter and Receiver which facilitate remote control of the Crane which is purchased with this device. This Remote Controller provides operation of the Crane at the most convenient place away from it within a range of the length of the connection cable.
Page 223: Functions Of Remote Control System
1.3 FUNCTIONS OF REMOTE CONTROL SYSTEM • The Transmitter allows one hand operation, which enables craning works, such as holding the load by the other hand or slinging, by one person. • The Accelerator lever facilitates the control of the Crane operation speed from stand-by condition to the maximum speed.
Page 224: Safety Precautions
2. SAFETY PRECAUTIONS 2. 1 FOR SAFETY OPERATIONS NO MODIFICATION ! • Do not attempt to modify or disassemble the Transmitter and Receiver, or the accessories, which may cause an electrical shock or a fire. HOLDING THE TRANSMITTER • The Transmitter is designed for one hand controls in general. Refer to the figure in the right for basic usage of the Transmitter.
Page 225 NO SHOCK TO THE TRANSMITTER • During the Transmitter operations, always use a hook belt (1) to prevent unexpected dropping of the unit. • Always avoid an impact to the Transmitter, such as hitting it on any object. It may result in damage to the enclosure or internal components which may cause a failure or malfunction including electrical shock or other serious hazard.
Page 226: Precautions For Crane Operation
2.2 PRECAUTIONS FOR CRANE OPERATION As to matters to be taken care of during operation, refer to the section of “SAFETY”, in addition to the following clauses. 2.2.1 PRIOR TO STARTING ENGINE INSPECTION PRIOR TO STARTING ENGINE At the start of the day‟s operation, perform the opening inspection as specified for this machine, prior to starting the engine.
Page 227: Subsequent To Starting Engine
2.2.2 SUBSEQUENT TO STARTING ENGINE FUNCTION CHECK OF OUTRIGGER MODE BY THE TRANSMITTER, AND NOTICES FOR OPERATION • Switch the operation mode to the “OUTRIGGER MODE” and confirm that the mode is switched correctly. • Activate “Start/Reset button” to assure that the engine correctly starts. •...
Page 228: Locations Of Safety Labels
3. LOCATIONS OF SAFETY LABELS Always keep these labels dirt free. When labels come off, stick them on again or replace with new ones. In addition to safety labels shown below, several other labels are requisite. Treat them in the same manner.
Page 229 (1) Precautions for remote control (Transmitter) (349-4428500) (2) Caution for remote-control receiver (101-4593000)
Page 230: Components Of The Transmitter
4. COMPONENTS OF THE TRANSMITTER (1) LCD Screen (8) Slewing/No.1 Outrigger Operation Lever (2) Start/Reset Button (9) Boom Telescoping/No.2 Outrigger Operation Lever (3) Stop/EMO Button (10) Hook Raising and Lowering/No.3 Outrigger Operation Lever (4) Speed/Mode Button (11) Boom derricking/No.4 Outrigger Operation Lever (5) Setting Button (12) Accelerator Lever (6) Horn Button...
Page 231 [1] LCD SCREEN (1) The LCD screen displays the status of the Transmitter in operation, the established values for each mode, or error messages by symbols, comments or signs. [2] START/RESET BUTTON (2) This button has two usages as below: •...
Page 232 [7] POWER SWITCH (7) To push this button switches ON and OFF the power of the Transmitter. Each push will turn ON or OFF alternately. [8] SLEWING/No.1 OUTRIGGER OPERATION LEVER (8) This operation lever functions in two ways as below: 1.
Page 233 [10] HOOK RAISING AND LOWERING/No.3 OUTRIGGER OPERATION LEVER (10) This operation lever functions in three ways as below: 1. In the CRANE MODE, this lever controls raising and lowering the hook: • Hook raising: Push the upper end of the lever. •...
Page 234 [13] GRIP (13) The Transmitter is designed for one hand control in general. Levers and buttons can be manipulated by your thumb, while the accelerator lever can be triggered by your forefinger. Other fingers should grab the grip to hold the Transmitter. [14] CONNECTION CABLE (14) The connection cable is a cable between the Transmitter and Receiver.
Page 235: Components Of The Receiver
5. COMPONENTS OF THE RECEIVER 5.1 COMPONENTS OF THE RECEIVER (1) Control Box (3) Monitor Display (2) Main Switch (4) Cable Connector CAUTION The remote control system provides the following safety functions: • Abnormal Signal Detector Circuit When the Main switch of the Receiver is turned ON, this circuit checks the dispatch of crane operations signals for 3 to 4 seconds.
Page 236 [1] CONTROL BOX (1) The Control box contains the receiver devices and control devices. Never attempt to dismantle this Control box. [2] MAIN SWITCH (2) The Main switch is a toggle switch to power ON or OFF the Receiver • ON : Turn the toggle to ON to start the Receiver. •...
Page 237: Fuse In The Receiver
5.2 FUSE IN THE RECEIVER • For any tests or replacement of a fuse, always turn OFF the Main switch of the Control box, before removing it. • The fuse must be replaced with the same type of glass tube fuses, and of the same rating. CAUTION A fuse is inserted in the (+) line of the main power supply of the Receiver as a protective circuit of internal devices and prevents circuits from burning out.
Page 238: Mode Setting Of The Transmitter
6. MODE SETTING OF THE TRANSMITTER This device provides the “A MODE” in which the initial values of the Transmitter are established, the “OUTRIGGER MODE” in which the outriggers are set or stowed, and the “CRANE MODE” where the Crane is operated. This device is designed to switch to the applicable mode for the operation by the Transmitter.
Page 239 [1] LCD SCREEN CONTRAST RATIO CAUTION The LCD screen may be illegible when it is set too light or too dark, which may prevent correct operations. Adjust its contrast adequately for a comfortable read. Adjust the contrast ratio of the LCD screen: 1.
Page 240 [5] OFF TIMER Adjust the Auto shut-OFF time of the Transmitter power. 1. Shift the cursor ( ) using the Hook raising and lowering lever and select the preferred time. The Auto shut-OFF adjust is by 3 steps, 5 min., 10 min., or 15min.
Page 241 [9] EXIT CAUTION Once setting-up the desired function items are completed, do not forget to practice the termination procedure, below. Otherwise, when this process is not correctly terminated, the latest setting will not become valid. 1. Once setting-up the desired function items are completed, ensure that the display has returned to the A MODE screen.
Page 242: An Example For Setting In The A Mode
6.1.3 AN EXAMPLE FOR SETTING IN THE A MODE Hereunder is a procedure to change the time of the “OFF timer”, A MODE SETTING LCD SCREEN from “5 minutes” of the factory setting, to 10 minutes: 1. Use the Hook raising and lowering lever and shift the cursor ( ) to the side of the function item to be changed.
Page 243: Procedure In The Operation Mode
6.2 PROCEDURE IN THE OPERATION MODE CAUTION When the Main switch of the Receiver is turned ON, its abnormal signal detector automatically starts, first. Please allow it for 3 to 4 seconds, without using any levers, buttons and the Accelerator lever. NOTES •...
Page 244: Call Out Outrigger Mode
6.2.2 CALL OUT OUTRIGGER MODE NOTES The OUTRIGGER MODE consists of “Outrigger collective setting mode (ALL)”and “Outrigger individual setting mode”. Use respective modes as shown below: 1. Push the Power button to turn ON the Transmitter. The “Crane mark” is displayed in the LCD screen for about 2 seconds. NOTES In case the power is already ON, turn OFF once, and then push the Power button again for power ON.
Page 245 4. The operation mode is already switched to the “OUTRIGGER MODE”, thus the “Outrigger mark” is exhibited. Soon after, it enters into “Outrigger collective setting mode”, then the mark turns to “Outrigger collective setting mode (ALL) “. 5. To shift to “Outrigger individual setting mode”, push the Speed/Mode button, while the LCD screen shows the “Outrigger collective setting mode (ALL)”.
Page 246: Checking Before Operation
7. CHECKING BEFORE OPERATION Precautions shown in this section must be practiced prior to starting work, without fail. Serious injury or death may arise when these checks are neglected. Also refer to the section of “OPERATION 2.1 Checking before Operation” for checking of the crane structure.
Page 247: Checking After Turning On The Transmitter
7.1.2 CHECKING AFTER TURNING ON THE TRANSMITTER At the moment when the Transmitter is powered ON, make checks on following items: [1] VERIFICATION OF THE LCD SCREEN SIGN AT POWER-ON Push the Power switch to turn ON the Transmitter. At this moment, confirm the mark as shown below, in the LCD screen.
Page 248 [2] VERIFICATION OF THE LCD SCREEN SIGN AT THE “CRANE MODE” 1. Pull the Accelerator Lever to the full and check that acceleration rate indicated in the right part of the LCD screen is in the full throttle (with all the bars present). 2.
Page 249 [3] VERIFICATION OF THE LCD SCREEN SIGN AT THE “OUTRIGGER MODE” 1. Push the Power switch once to turn OFF the Transmitter. 2. Push the Power switch again to turn ON the Transmitter. The “Crane mark” is displayed in the LCD screen for about 2 seconds.
Page 250 5. Manipulate each operation lever and verify that each indication in the LCD screen is correct. NOTES In Outrigger collective setting mode (ALL), operation of any control lever will only result the same indication. 6. To shift to “Outrigger individual setting mode ( )”, push the Speed/Mode button, while the LCD screen shows the “Outrigger collective setting mode (ALL)”.
Page 251: Checking Receiver
7.1.3 CHECKING RECEIVER Perform the following inspections: • Check the Control Box (1), Main Switch (2), Monitor display (3), and Cable Connector (4) for oily dirt or other contaminants. Scrub away the dirt with a clean cloth. • Check for any cracks and/or damages to the Control Box (1) or Monitor display (3).
Page 252: Checking After Starting Engine
7.2 CHECKING AFTER STARTING ENGINE Precautions shown in this section must be practiced prior to starting work, without fail. Serious injury or death may arise when these inspections are neglected. Further, refer to the section of “OPERATION 2.1 Checking before Operation” for checking of the crane structure.
Page 253: Checking "Outrigger Mode" Operation
7.2.2 CHECKING “OUTRIGGER MODE” OPERATION The Crane is inoperable during an event where the LCD screen in the Transmitter shows an error message or the Monitor display in the Receiver shows an error code. Without fail, examine the cause of the error and perform appropriate service when any fault is identified,or contact us or our agents for services.
Page 254 9. Push the Speed/Mode button. Then confirm that the “Outrigger individual setting mode ( )” is exhibited. NOTES Switching between “Outrigger collective setting mode ” and “Outrigger individual setting mode” is alternated by each push of the Speed/Mode button. 10. Push the Start/Reset button and start the engine. 11.
Page 255: Checking "Crane Mode" Operation
7.2.3 CHECKING “CRANE MODE” OPERATION • Ensure that all the outriggers are securely settled, before starting crane operations. Any crane operations where outriggers are improperly used may cause the crane to tip over or other serious accidents. • The Crane is inoperable at such times where the LCD screen in the Transmitter shows an error message or the Monitor display in the Receiver shows an error code.
Page 256 8. During the Hook raising and lowering lever manipulation, of the “Raise (upper)” and “Lower (lower)” area respectively, pull the Accelerator lever and check that the hook follows the lever operation. 9. Using the Hook raising and lowering lever to the “Lower (lower)” area, lower the hook as much as possible.
Page 257 14. During each control lever manipulation of step 6 through step 12, above, push the Speed/Mode button, then try both “Micro speed command” and “Enhanced speed command” and confirm the speed of each operation corresponds to respective controls of “Micro speed command” and “Enhanced speed command”. 6-37...
Page 258: Operation
8. OPERATION • Never attempt to disassemble or modify the Transmitter or Receiver, which may cause an electrical shock or a fire. • Avoid making an impact to the Transmitter by dropping or hitting. A damaged part of the enclosure allows water to enter inside that can cause trouble or failures and may result in a serious hazard, such as a malfunction or electrical shock.
Page 259: Operation In Outrigger Mode
8.2 OPERATION IN OUTRIGGER MODE • Check for smooth and correct actions of each operation lever of the Transmitter, and that they smoothly return to each neutral position when the finger is released. • Each operation lever of the Transmitter will be blocked by its stopper when it is moved fully. When it is blocked, do not attempt to push further, otherwise it may damage the Transmitter and cause faults and result in a serious accident.
Page 260 NOTES This Crane is equiped with four sets of outriggers and number lables (1) to (4) are fixed on each. These labels correspond to the number of each operation lever in the Transmitter. (See the figure in the right.) 6-40...
Page 261: Outrigger Setting
8.2.1 OUTRIGGER SETTING Avoid controlling outriggers collectively on ground conditions other than flat and leveled. Otherwise, 4 outriggers will not touch the ground consistently which makes the machine inclined and may result in tipping. 1. In accordance with “REMOTE CONTROL 6.2 Procedure in the Operation Mode”, enter into the “Outrigger collective setting mode”.
Page 262 7. Move one of the outrigger operation levers to “Extend (lower)” and pull the Accelerator lever slowly. NOTES In Outrigger collective setting mode (ALL), operation of any of control levers controls all the outriggers. 8. When the Crane is elevated “approximately 50mm”, slowly release the Accelerator lever, then release the outrigger operation lever to return to the neutral position.
Page 263: Outrigger Stowing
8.2.2 OUTRIGGER STOWING [1] OUTRIGGER COLLECTIVE SETTING 1. In accordance with “REMOTE CONTROL 6.2 Procedure in the Operation Mode”, enter into the “Outrigger collective setting mode”. 2. Turn one of the outrigger operation levers to “Retract (upper)” and pull the Accelerator lever slowly. NOTES In Outrigger collective setting mode (ALL), operation of any of the control levers controls all the outriggers.
Page 264: Operation In Crane Mode
8.3 OPERATION IN CRANE MODE • Ensure that all the outriggers are properly installed. Where outriggers are improperly installed, it may result a serious hazard, such as the Crane tipping. • During crane operations, always refer to the portable rated total load chart and avoid over-loaded operations.
Page 265 5. In accordance with “REMOTE CONTROL 6.2 Procedure in the Operation Mode”, enter into the “CRANE MODE”. 6-45...
Page 266: Slewing Operation
8.3.1 SLEWING OPERATION For the slewing operation, actuate the Accelerator lever carefully and always keep in low speed. Also, actuate the Accelerator lever slowly and delicately to avoide abrupt slewing. Any abrupt acceleration or deceleration, especially while a load is hung will make a large impact to the Crane and may result in a serious hazard such as Crane tipping or damage.
Page 267: Hook Raising And Lowering
8.3.3 HOOK RAISING AND LOWERING • In the event of “Over-hoist alarming” or “Automatic cut out” during the hook raising operation, immediately stop winding. Otherwise, it may cause damege to the Crane, or a broken wire-rope which will result in dropping of the hook or laod; and a serious accident may happen.
Page 268: Set-Up And Cancel Micro Speed
8.3.5 SET-UP AND CANCEL MICRO SPEED When it is required to operate the Crane in low speed, use the Micro speed mode, which limits the maximum speed of the Crane and facilitates the smoother control in the low speed range. This machine offers 2 modes for limiting the maximum speed of the Crane.
Page 269 [3] SETTING TO THE USER MICRO SPEED MODE Setting to the User micro speed mode requires actual crane operations with the engine running. Before starting the User micro speed mode setting, always ensure that nobody other than those involved with the operation are within the working area. 1.
Page 270: Engine Stop And Emergency Stop Procedure
8.3.6 ENGINE STOP AND EMERGENCY STOP PROCEDURE • For any abnormalities in crane operations, immediately push the Stop/EMO button to stop the engine. This includes such cases as, crane operation does not stop even though you release your fingers from any of the operation levers or Accelerator lever, or the Crane starts any operation even though no operation lever is manipulated.
Page 271: Checking After Crane Operation
8.4 CHECKING AFTER CRANE OPERATION • When the operation of the Crane is finished, always turn OFF the Transmitter and Receiver power. • On no occasion except for Crane operations, must the power of the Transmitter be turned ON. That could cause an un-expected motion of the Crane and result in a serious hazard, such that the Crane hitting someone or an object, or the Crane could tip.
Page 272: Trouble Shooting
9. TROUBLE SHOOTING 9.1 BEFORE TROUBLE SHOOTING “While Crane operates perfectly under manual control, part or whole functions are un-operable from the remote control.” In the event of failure as above, perform the DIAGNOSIS shown in the following pages. CAUTION First, check in accordance with the table below before you start the diagnosis, based on the following pages.
Page 273: Errors In The Remote Control Devices
9.2 ERRORS IN THE REMOTE CONTROL DEVICES. • For the error diagnosis, always verify the indications in the Monitor display in the Receiver and the LCD screen in the Transmitter. Then find the suitable error display description in the table below so that the cause is presumed, then, follow the recommended remedy for it.
Page 274 Error display Remedy Main cause Transmitter Receiver Remedy 1 Remedy 2 Maintenance/replace for Receiver PCB • The Receiver PCB defective. Maintenance/replace for wiring between the The Crane operates perfectly • Wiring failure between the Receiver PCB and the control valve solenoids under the manual mode but Receiver PCB and the control some...
Page 275: System Specifications
10. SYSTEM SPCIFICATIONS Items MCT300N Waterproof protection IP65 System configuration Manual and Remote control, both-way LCD monitor panel Operation monitor • Operation status monitor • Message • Error code Emergency stop equipment Abnormal signal detector unit at the engine start Safety devices Automatic power cut unit (Automatic Power-OFF) Voltage drop limiter...
Page 276 MAEDA MINI-CRAWLER CRANE MC-174C OPERATION MANUAL Document No: 101E-OM0906-00 First edition: Jun 25, 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...

Maeda MC-174CRM Operation Manual

Introduction

Safety

Operation

Inspection and Maintenance

Specifications

Remote Control

Quick Links

Troubleshooting

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