Page 1 This manual should be kept near the machine for reference and periodically reviewed by all personnel who will come into contact with it. NOTICE MAEDA has Operation Manuals written in some other languages. If a foreign language manual is necessary, contact your local distributor for availability.
Page 3: Table Of Contents
3.3.4.3 RATED TOTAL LOAD CHART FOR 2-FALL HOOK ..... 3-13 3.3.4.4 RATED TOTAL LOAD CHART FOR SINGLE-FALL HOOK .. 3-14 3.3.4.5 FLY JIB RATED TOTAL LOAD CHARTS ......3-15 3.3.4.6 SEARCHER HOOK RATED TOTAL LOAD CHARTS .... 3-16 5/2020 CC1908S-1...
Page 4 NUMBER OF FALLS SELECTION DISPLAY ......4-30 BOOM LOWER LIMIT DETECTION ........4-30 OVERWINDING PREVENTION DEVICE ............... 4-33 OVER UN-WINDING PREVENTION DEVICE ............4-34 SWITCHES ......................4-35 ACCESSORIES ..................... 4-40 CONTROL LEVERS AND PEDALS ............... 4-43 CAB FRONT WINDOW ..................4-46 5/2020 CC1908S-1...
Page 5 THE RIGHT OR LEFT WHILE MOVING FORWARD ..5-18 5.3.4.3 TURNING (SPIN TURN) ON THE SPOT ....... 5-18 CRANE OPERATION ..................... 5-19 5.4.5.1 NORMAL HOISTING AND LOWERING ........ 5-30 5.4.5.2 2ND-SPEED HOISTING AND LOWERING ......5-31 5.4.5.3 HOISTING OPERATION WITH HOOK STOWAGE LEVER .. 5-31 5/2020 CC1908S-1...
Page 6 5.7.3.3 INDIVIDUAL MODE OPERATIONS ........5-55 5.7.3.4 CLOCK ADJUSTMENT ............5-56 BLADE (OPTION)....................5-57 FLY JIB (OPTION) ....................5-59 5.9.3.1 MOUNTING ................5-61 5.9.3.2 STOWING ................5-69 5.9.4.1 BOOM DERRICKING OPERATION ........5-76 5.9.4.2 BOOM TELESCOPING ............5-76 5/2020 CC1908S-1...
Page 7 LEFT COVER ......................6-21 RIGHT COVER ...................... 6-22 MACHINERY COVER .................... 6-22 INSPECTION AND MAINTENANCE LIST ............. 6-24 INSPECTION ......................6-27 WALK-AROUND INSPECTION (BEFORE STARTING ENGINE) ..6-27 INSPECTION BEFORE STARTING ENGINE ......6-31 INSPECTION AFTER STARTING ENGINE ......6-37 5/2020 CC1908S-1...
Page 8 DERRICK WIRE ROPE INSPECTION/ADJUSTMENT ..6-85 INSPECTION ................. 6-87 ADJUSTMENT ............... 6-87 WHEN SUCH A PHENOMENON OCCURS ............6-91 BATTERY HANDLING PRECAUTIONS ........ 6-92 REMOVING/INSTALLING BATTERY ........6-92 PRECAUTIONS WHEN RECHARGING BATTERY ....6-93 STARTING UP USING A BOOSTER CABLE ......6-93 5/2020 CC1908S-1...
Page 9 TRAVEL MOTOR AIR BLEEDNIG ......... 6-98 DPF REGENERATION ............6-99 DPF STATIONARY REGENERATION ........ 6-100 BEFORE STORING MACHINE ..........6-101 DURING STORAGE ............6-102 AFTER STORAGE ............... 6-102 PREPARING FOR LOW TEMPERATURES ......6-102 TROUBLESHOOTING ..................6-104 ERROR CODES AND WARNINGS ..............6-112 5/2020 CC1908S-1...
Page 10 CONTENTS M A E D A Crawler Crane This Page Intentionally Left Blank viii 5/2020 CC1908S-1...
Page 11: Chapter 1 Introduction
INTRODUCTION...
Page 12: 1.1 Introduction
• This manual should always accompany the machine if the machine is transferred to another owner. Thank you for purchasing the Maeda Crawler If the machine is resold to a third party Crane CC1908S-1. without informing us in advance, the This manual is a guidebook on how to ensure safe warranty will no longer be valid.
Page 13: 1.2 Safety Information
This manual also uses the following indications for precautions that must be adhered to and for other useful information: This denotes that failure IMPORTANT to properly handle the machine may damage it or shorten its service life.  This denotes useful information. 5/2020 CC1908S-1...
Page 14: Qualifications For Operation
Only personnel that have obtained the required license or training stipulated by laws and regulations applicable to the place of use are qualified to operate this machine. Contact the relevant government office or our sales service agency for further information. 5/2020 CC1908S-1...
Page 15: 1.4 Machine Introduction
(A) at the rear. Similarly, boom (upper slewing body) slewing directions are defined as clockwise when viewed from above for right slewing and counterclockwise when viewed from above for left slewing. 5/2020 CC1908S-1...
Page 16 (forward, lever, and Working radius limiter backward, right and left), but also to perform pivot turns and spin turns. • The blade (option) enables debris to be removed when creating a space for installing the crane. 5/2020 CC1908S-1...
Page 17: 1.5 Crane Introduction
[7] Boom height Refers to the vertical distance from the ground to the boom tip. [4] Boom length Refers to the distance between the boom base pin and the sheave pin on the boom end. 5/2020 CC1908S-1...
Page 18: Running-In Operation
CHECKS AFTER STARTING ENGINE" on P. 5-8. • Allow the engine to warm up for 5 minutes after starting the engine. • Avoid overloading or operating at high speeds. • Avoid sudden starting, sudden acceleration, unnecessary sudden stops, and sudden steering manoeuvres. 5/2020 CC1908S-1...
Page 19: Chapter 2 Safety
Chapter 2 SAFETY...
Page 20: 2.1 Basic Precautions
• Operators must have received training on handling methods at the business site to ensure • Do not overly rely on the presence of safety sufficient operation skills before beginning devices while operating the machine. work. 5/2020 CC1908S-1...
Page 21 (c) Operating condition of equipment such as the hook, winch, and boom • Make sure the machine cannot be moved (e.g., by placing chocks in the crawler tracks). • Remove the starter key and keep it with you. 5/2020 CC1908S-1...
Page 22 • Decide on the location for a first-aid box. Also Be sure to turn off the engine when refuelling. make sure that the first-aid box is inspected periodically and replenished as necessary. 5/2020 CC1908S-1...
Page 23 Check that all hose and tube clamps and cushions are securely tightened. If they are loose, they may vibrate or rub against other parts while the machine is being operated, damaging hoses and causing high-pressure oil to spurt out, resulting in fire or personal injury. 5/2020 CC1908S-1...
Page 24 • When leaving the machine, be sure to retract the crane, set the lock lever (1) to the "LOCK" position (L), and turn off the engine. Also lock all of the locks, remove the keys, and store them in a designated place. 5/2020 CC1908S-1...
Page 25 PRECAUTIONS ON ATTACHMENTS AND OPTIONAL UNITS • Maeda can accept no liability for any personal injury, failures, or property damage caused by the use of unauthorized attachments or optional units.
Page 26: 2.2 Safety Label Locations
CAUTION indicates a hazardous situation that, if not avoided, could result in minor or moderate injury NOTICE is used to address practices not related to physical injury Safety Instruction (or equivalent) signs indicate specific safety-related instructions or procedures 5/2020 CC1908S-1...
Page 27 M A E D A Crawler Crane 2.2 SAFETY LABEL LOCATIONS [SAFETY LABEL LOCATIONS IN THE CAB] 5/2020 CC1908S-1...
Page 28 2.2 SAFETY LABEL LOCATIONS M A E D A Crawler Crane [SAFETY LABEL LOCATIONS OUTSIDE THE CAB (1/2)] 2-10 5/2020 CC1908S-1...
Page 29 M A E D A Crawler Crane 2.2 SAFETY LABEL LOCATIONS [SAFETY LABEL LOCATIONS OUTSIDE THE CAB (2/2)] 5/2020 CC1908S-1 2-11...
Page 30 2.2 SAFETY LABEL LOCATIONS M A E D A Crawler Crane [FLY JIB SAFETY LABEL LOCATIONS] 2-12 5/2020 CC1908S-1...
Page 31 M A E D A Crawler Crane 2.2 SAFETY LABEL LOCATIONS [SEARCHER HOOK LABEL LOCATIONS] 5/2020 CC1908S-1 2-13...
Page 32 2.2 SAFETY LABEL LOCATIONS M A E D A Crawler Crane [1] 520-3641500 Safety operation [2] 520-2263200 Working range / Rated total load chart 2-14 5/2020 CC1908S-1...
Page 33 M A E D A Crawler Crane 2.2 SAFETY LABEL LOCATIONS [3] 556-4596300 Caution for Wash [5] 520-3619200 Number of falls Select [4] 520-3618900 Control lever pattern [6] 520-2268600 Moment limiter operation 5/2020 CC1908S-1 2-15...
Page 34 2.2 SAFETY LABEL LOCATIONS M A E D A Crawler Crane [7] 520-3641400 Safety instructions [8] 556-4596200 Do not operate [9] 520-3639100 Emergency operation pattern 2-16 5/2020 CC1908S-1...
Page 35 2.2 SAFETY LABEL LOCATIONS [10] 349-4427800 High temperature [11] 585-4738600 Fuel [12] 556-4597000 High temperature [13] 556-3460700 Crush hazard [14] 556-4597100 Get caught [15] 103-4589800 High pressure [16] 556-4596600 Electric shock [17] 584-3437800 Warning for Lifting position 5/2020 CC1908S-1 2-17...
Page 36 M A E D A Crawler Crane [18] CL000210000 Fall / Don't ride [19] 103-4590200 Get caught in winch [20] 103-4592400 Get caught in hook [21] 556-4596800 Crush hazard [22] 520-4843000 Machine weight [24] CL000240110 Pressure wash [23] 585-4714800 Lifting position 2-18 5/2020 CC1908S-1...
Page 37 M A E D A Crawler Crane 2.2 SAFETY LABEL LOCATIONS [25] 520-4843300 [26] CL000220030 Accumulator Connecting position / Don't lifting [27] 584-4581700 Don't ride [28] 585-4739000 Disconnect switch [29] 103-4576900 Boom lifting [30] 520-3638500 Machine lifting / Tie down 5/2020 CC1908S-1 2-19...
Page 38 M A E D A Crawler Crane [31] 584-3438000 Wire rope CE plate [32] 106-3399300 Hook CE plate [33] 585-4739200 Override switch [34] S520A3929170 EPA regulation [B1] 542-4781300 Blade operation pattern (Option) [B2] 556-4575300 Warning for blade (Option) 2-20 5/2020 CC1908S-1...
Page 39 M A E D A Crawler Crane 2.2 SAFETY LABEL LOCATIONS [F1] 520-2263400 Working range / Rated total load chart for Fly-jib (Option) [F2] 520-2272400 Fly-jib installation (Option) 5/2020 CC1908S-1 2-21...
Page 40 2.2 SAFETY LABEL LOCATIONS M A E D A Crawler Crane [F3] 520-2272500 Fly-jib stowage (Option) [F4] 556-4580700 Don't lifting (Option) [F5] CL000100001 Pin hole (Option) [F6] CL000120011 sandwich the hand (Option) [F7] 585-4714800 Lifting position (Option) 2-22 5/2020 CC1908S-1...
Page 41 M A E D A Crawler Crane 2.2 SAFETY LABEL LOCATIONS [F8] 106-4719500 Max capacity (Option) [F9] CL000010000 Refer to the manual (Option) [F10] 106-4719600 Hook CE plate (Option) [F11] 520-4845900 Fly-jib falling (Option) 5/2020 CC1908S-1 2-23...
Page 42 2.2 SAFETY LABEL LOCATIONS M A E D A Crawler Crane [S1] 520-2276200 Working range / Rated total load chart for Searcher hook (Option) [S2] 520-4856300 Max capacity (Option) [S3] 520-4856400 Crush hazard (Option) 2-24 5/2020 CC1908S-1...
Page 43 2.2 SAFETY LABEL LOCATIONS [S4] 520-4856500 Hook CE plate (Option) [S5] 585-3558400 Serial plate (Option) [S6] 103-4589600 Pin hole (Option) [S7] 520-4857100 sandwich the hand (Option) [S8] 520-4857000 Searcher hook winch [S9] 106-4719600 Hook CE plate (Option) 5/2020 CC1908S-1 2-25...
Page 44 2.2 SAFETY LABEL LOCATIONS M A E D A Crawler Crane This Page Intentionally Left Blank 2-26 5/2020 CC1908S-1...
Page 45: Chapter 3 Specifications
SPECIFICATIONS...
Page 46: Main Specifications
Slinging rope detachment protector, Hydraulic safety valve, Telescoping cylinder Safety devices hydraulic locking device, Derricking cylinder hydraulic locking device, Alarm buzzer, Machine body inclination alarm, Working status lamp, Level gauge, Safety lock lever, and Working radius limiter Classification Mobile crane ISO4301/2 Group A1 5/2020 CC1908S-1...
Page 47 8,230 mm × 2,490 mm × 3,015 mm Maximum rated total load × 2.0 t × 7.14 m (Searcher Hook) working radius 1.52 t × 8.0 m (Winch) Performance Maximum working radius 20.73 m Maximum lifting height above ground 22.6 m 5/2020 CC1908S-1...
Page 48: Dimensional Drawings
3.2 DIMENSIONAL DRAWINGS M A E D A Crawler Crane DIMENSIONAL DRAWINGS 5/2020 CC1908S-1...
Page 49 M A E D A Crawler Crane 3.2 DIMENSIONAL DRAWINGS 5/2020 CC1908S-1...
Page 50 3.2 DIMENSIONAL DRAWINGS M A E D A Crawler Crane 5/2020 CC1908S-1...
Page 51 M A E D A Crawler Crane 3.2 DIMENSIONAL DRAWINGS 5/2020 CC1908S-1...
Page 52: Rated Total Load Charts
• Load limit depending on number of falls Single fall: Up to 1,520 kg 2 falls: Up to 3,090 kg 4 falls: Up to 6,090 kg 6 falls: Up to 8,090 kg 5/2020 CC1908S-1...
Page 53 3. "12.46 m boom (3)": Booms (4) and (5) are both retracted, while booms (2) and (3) are fully extended. If boom (3) is extended even by a small amount, work within the capacity indicated in this column. 5/2020 CC1908S-1...
Page 54 If booms (4) and (5) are extended even by a small extent, work within the capacity indicated in this column. 5. "19.40 m boom (5)": All the booms are fully extended. When more than one-half of the " mark" of boom (4) is exposed from boom (3), work within the capacity indicated in this column. 3-10 5/2020 CC1908S-1...
Page 55 19.40 m boom → Boom length 15.93m or more • The rated total load chart is based on the actual working radius including boom deflection. • The rated total load chart indicates the load including the mass of hoisting accessories (hook mass: 90 kg). 5/2020 CC1908S-1 3-11...
Page 56 19.40 m boom → Boom length 15.93m or more • The rated total load chart is based on the actual working radius including boom deflection. • The rated total load chart indicates the load including the mass of hoisting accessories (hook mass: 90 kg). 3-12 5/2020 CC1908S-1...
Page 57 19.40 m boom → Boom length 15.93m or more • The rated total load chart is based on the actual working radius including boom deflection. • The rated total load chart indicates the load including the mass of hoisting accessories (hook mass: 90 kg). 5/2020 CC1908S-1 3-13...
Page 58 19.40 m boom → Boom length 15.93m or more • The rated total load chart is based on the actual working radius including boom deflection. • The rated total load chart indicates the load including the mass of hoisting accessories (hook mass: 20kg). 3-14 5/2020 CC1908S-1...
Page 59 Fly-Jib Length ① 3.7 m Fly-Jib Length ② 5.9 m Fly-Jib angle Main Boom angle 0° 10° 20° 30° 40° 50° 60° 0° 10° 20° 30° 40° 50° 60° 80° 1520 1120 1020 70° 1120 60° 50° 40° 30° 20° 10° 5/2020 CC1908S-1 3-15...
Page 60 30 degree boom angle. Normal Searcher Hook lifting operation is between 0 to 80 degree boom angle. 10. You can extend/retract boom with a load. 11. Do not use the Searcher Hook and the Hook Block/Ball simultaneously to hoist load. 3-16 5/2020 CC1908S-1...
Page 61 1320 1320 1330 1330 1360 1360 1130 1130 10.00 1030 1130 1130 1190 1190 10.32 1060 1080 1130 1130 11.00 1020 1020 12.00 12.12 13.00 13.79 14.00 15.00 15.12 16.00 17.00 17.26 18.00 18.13 19.00 20.00 20.73 5/2020 CC1908S-1 3-17...
Page 62: 3.4 Working Radius/Lifting Height Diagrams
Point A in the figure indicates the boom angle and point B, the lifting height above the ground. The working radius for points A and B are the same. However, they differ when using a single fall. 3-18 5/2020 CC1908S-1...
Page 63 M A E D A Crawler Crane 3.4 WORKING RADIUS/LIFTING HEIGHT DIAGRAMS 5/2020 CC1908S-1 3-19...
Page 64 3.4 WORKING RADIUS/LIFTING HEIGHT DIAGRAMS M A E D A Crawler Crane 3-20 5/2020 CC1908S-1...
Page 65 M A E D A Crawler Crane 3.4 WORKING RADIUS/LIFTING HEIGHT DIAGRAMS 5/2020 CC1908S-1 3-21...
Page 66 3.4 WORKING RADIUS/LIFTING HEIGHT DIAGRAMS M A E D A Crawler Crane This Page Intentionally Left Blank 3-22 5/2020 CC1908S-1...
Page 67: Parts And Controls
PARTS AND CONTROLS...
Page 68: 4.1 Part Names
(11) Crawler (4) Winch (12) Hook block (5) Head light (13) Overwinding detector (6) Wiper (Front window) (14) Working status lamp (7) Wiper (Roof window) (15) Multi-assist view camera (8) Sprocket, travel motor (16) Toolbox (Option) (17) Blade (Option) 5/2020 CC1908S-1...
Page 69 (5) Travel levers (12) Sun shade (6) Accelerator pedal (13) Interior lamp (7) Monitor (14) Option bar (Option) (15) Blade control lever (Option)  For details on the individual operating switches, refer to "4.6 SWITCHES" on P. 4-35. 5/2020 CC1908S-1...
Page 70: 4.2 Monitor
If this occurs, the monitor display may temporarily disappear, but this is normal.  If a password has been set, an input screen is displayed on the monitor screen. For details, refer to "5.2.2 OPERATIONS AND CHECKS BEFORE STARTING ENGINE" on P. 5-6. 5/2020 CC1908S-1...
Page 71 (7) DPF stationary regeneration switch (16) Warning display (8) Camera selector switch (17) Message display (9) Travel 1st speed/2nd speed selector switch  For details on the moment limiter part names, refer to "4.3.4 MOMENT LIMITER FUNCTION" on P. 4-26. 5/2020 CC1908S-1...
Page 72 DPF (DIESEL PARTICULATE FILTER) REGENERATION" on P. 6-99. IMPORTANT The machine cannot be operated at all during DPF stationary regeneration. Regeneration takes about 25 to 30 minutes, so it should not be performed until after all preparations are complete. 5/2020 CC1908S-1...
Page 73 • Stationary mode • Travel mode • Travel prohibited  Travel is prohibited in the following situations: • When an overload has occurred • When the boom length is 9.0 m (3-stage boom) or greater 5/2020 CC1908S-1...
Page 74 "1" and "2".  The speed will be limited to 1st speed if the hoisted load is 0.5 t or greater. [14] Moment limiter display Refer to " 4.3.4.1 MOMENT LIMITER DISPLAY" on P. 4-26. 5/2020 CC1908S-1...
Page 75 Fly jib installation/stowage (Only with fly jib (Only when searcher hook is mounted) mounted) (14) Pop-up selector switches (User Settings screen) (15) Home switch  Each setting item can be selected by tapping or by using the pop-up selector switches. 5/2020 CC1908S-1...
Page 76 • 6 Falls MONITOR ERROR CODES" on P.6-115. • 4 Falls • 2 Falls [5] Software version • Single Fall Tap to display the software version screen for checking the version of the display and controller software. 4-10 5/2020 CC1908S-1...
Page 77 30 hours or 3 days with an yellow icon on the home screen, and it will appear in red text at 0 hours or 0 days with a red icon on the home screen. 5/2020 CC1908S-1 4-11...
Page 78 • At startup: The icon is displayed for just and the multi-assist view screen, refer to “4.2.4 30 seconds on the home MULTI-ASSIST VIEW SCREEN” on P. 4-14. screen after startup. • None: The consumables icon is not displayed at all. 4-12 5/2020 CC1908S-1...
Page 79 Touch to switch the Winch ON or OFF. • OFF :Winch does not work even when winch is operated. • ON ：The winch works as usual.  This is not available when the main hook is used or without the searcher hook attached. 5/2020 CC1908S-1 4-13...
Page 80 Indicates the slewing radius for the upper slewing camera. Contact us or our sales service body. agency.  The upper slewing body protrudes the most at the rear, so this display should be used as a guide for the slewing radius when slewing. 4-14 5/2020 CC1908S-1...
Page 81 [360° view] Displays a view from either side to the front. Displays a rotating view around the machine in the counterclockwise direction, allowing you to check the full 360 degrees around the machine in sequence. [Home screen] 5/2020 CC1908S-1 4-15...
Page 82 When the fly jib is stowed, the monitor display changes as follows: • The number of fly jib boom sections is shown as "R". • The fly jib length is not shown. • The fly jib angle is not shown. 4-16 5/2020 CC1908S-1...
Page 83  If fly jib operation is selected, you cannot use the telescoping and derricking operations at the same time. The operation chosen first will be performed.  Switching is not possible unless the operation is first stopped. 5/2020 CC1908S-1 4-17...
Page 84 4.2.6 SEARCHER HOOK MODE SCREEN (1) Searcher hook position display (2) Searcher hook position switch Only the items that change when in Searcher Hook mode are explained. For other items, refer to "4.2.2 HOME SCREEN" on page 4-5. 4-18 5/2020 CC1908S-1...
Page 85 In the searcher hook mode, the position display remains even if the searcher hook is stowed and changed to crane operation with the main hook. In this condition, the weight of the searcher hook will be added to the actual load. 5/2020 CC1908S-1 4-19...
Page 86: Moment Limiter (Overload Prevention Device)
(5) Overwinding detector (side of boom tip) (7) Monitor (moment limiter display) (inside cab) (6) Working status lamp (8) Maintenance switch (inside cab) (A) Rotating red lamp (warning lamp when (9) Override switch load factor is 100 % or more) 4-20 5/2020 CC1908S-1...
Page 87: Moment Limiter Mechanism
× 100 < +10 % accuracy = Where, A: Total weight of hoisted load + hook + hoisting accessories (slings, etc.) B: Rated total load for working radius (actual measured radius) where the boom stopped due to overloading 5/2020 CC1908S-1 4-21...
Page 88: Moment Limiter Abnormality Message Display
Operating the crane with the engine running at high speed is extremely dangerous, and may result in overloading due to oscillation of the hoisted load, machine toppling or the boom breaking. 4-22 5/2020 CC1908S-1...
Page 89 5/2020 CC1908S-1 4-23...
Page 90 The crane must be first moved back to within the safety area with a load factor of less than 90 % (working status lamp: green). Unwind the hook to lower the hoisted load to the ground. Retract the boom. 5/2020 CC1908S-1 4-24...
Page 91 Do not use under normal conditions or when lifting clear from the ground. If you use this switch when lifting from the ground, there is a risk of serious accident such as the machine toppling over and becoming damaged. 5/2020 CC1908S-1 4-25...
Page 92: Moment Limiter Display
(10) Over un-winding display (5) Hook ground contact indicator (11) Overwinding display (6) Boom angle display  For details on the moment limiter working range limiter switches, refer to "5.4.10 MOMENT LIMITER WORKING RANGE LIMITER OPERATION" on P. 5-37. 4-26 5/2020 CC1908S-1...
Page 93: Explanation Of Moment Limiter Display
However, lowering will not stop if the hook ground contact stop is disabled in the user settings. 5/2020 CC1908S-1 4-27...
Page 94 When stowing the hook, the mark flashes in red even when the hook is stowed, but this is not an error. 4-28 5/2020 CC1908S-1...
Page 95: Overload Alarm
• The winch on the monitor display will flash in red. • The alarm emits an intermittent "peep" sound while the hook is being lowered. • Hook lowering stops automatically. When an automatic stop occurs, immediately recover from the stop (by hoisting the hook). 5/2020 CC1908S-1 4-29...
Page 96: Number Of Falls Selection Display
SETTINGS SCREEN" on P. 4-10. • Actual load less than 0.25 t BOOM LOWER LIMIT DETECTION When the boom length is 6.0 m or greater, boom lowering stops automatically to prevent the boom from falling below a horizontal position. 4-30 5/2020 CC1908S-1...
Page 97 • Boom fully retracted • Actual load less than 0.25t • When the searcher hook position is SH1, the prohibited operation in the prohibited operation area does not change under any conditions. 5/2020 CC1908S-1 4-31...
Page 98 4-32 5/2020 CC1908S-1...
Page 99: Overwinding Prevention Device
(1) from hoisting and the boom (4) from extending and prevents any further operation. The overwinding prevention device sounds the buzzer intermittently to warn of overwinding, but only when hook hoisting and boom extension is performed simultaneously. 5/2020 CC1908S-1 4-33...
Page 100: Over Un-Winding Prevention Device
(1) Detection limit switch (2) Detection roller If the warning buzzer sounds, immediately operate the right-hand control lever to "Hoist up" (pull toward you) to wind up the wire rope. 4-34 5/2020 CC1908S-1...
Page 101: 4.6 Switches
(11) Travel mode selector switch (4) Hook stowage lever (12) Camera selector switch (5) Starter switch (13) Maintenance switch (6) Light switch (14) Interior lamp switch (7) Front window wiper switch (15) Disconnecting switch (8) Roof window wiper switch 5/2020 CC1908S-1 4-35...
Page 102  The working status lamp illuminates in red while winding up using this lever.  Loads cannot be raised by operating the winch using this lever, but this is not a fault. 4-36 5/2020 CC1908S-1...
Page 103 When the switch is depressed, washer fluid is sprayed out and the wiper operates. When you release your hand from the switch, the switch returns, the washer fluid stops, and the wiper also stops. (c) Stop position: The wiper stops. 5/2020 CC1908S-1 4-37...
Page 104 "Low speed (1st speed)". there is no load and no load is being hoisted. Raising and lowering a hoisted load at high speed may cause serious personal injury due to the machine toppling, breakage, or dropping the load. 4-38 5/2020 CC1908S-1...
Page 105 The interior lamp can be turned on even when the starter switch is in the "OFF" position. Use this switch to turn on the interior lamp. (a) "ON" position: The interior lamp turns on. (b) "OFF" position: The interior lamp turns off. 5/2020 CC1908S-1 4-39...
Page 106: 4.7 Accessories
4.7 ACCESSORIES M A E D A Crawler Crane 4.7 ACCESSORIES (1) USB power supply port (4) Sun shade (2) Accessory power supply (5) Sun visor (3) Cup holder (6) Emergency escape hammer 4-40 5/2020 CC1908S-1...
Page 107 [5] Sun visor IMPORTANT The sun visor may be damaged if not used correctly. Move the sun visor slowly while holding it in the centre. [3] Cup holder This is located on the left side of the cab. 5/2020 CC1908S-1 4-41...
Page 108 Also take care not to slip on pieces of the broken glass. A hammer (1) is provided in the left rear pillar for use in emergencies when the cab door cannot be opened. To escape, hit and break the window with the hammer. 4-42 5/2020 CC1908S-1...
Page 109: 4.8 Control Levers And Pedals
Use this lever to lock crane operations, slewing, and travel operations. 5/2020 CC1908S-1 4-43...
Page 110 (b) Reverse: Pull the levers toward you. (N) Neutral: Release your hand from the levers.  When the travel levers are moved from the neutral position to forward or reverse, an alarm sounds to warn that the machine will start moving. 4-44 5/2020 CC1908S-1...
Page 111 The hook block and boom angle hold their positions when they are stopped. • Blade raising: Pull the lever toward you. • Blade lowering: Push the lever forward. For details on operation using the blade, refer to "5.8 BLADE (OPTION)" on P.5-57. 5/2020 CC1908S-1 4-45...
Page 112: 4.9 Cab Front Window
There is a risk of damage if the wiper hits the sunshade. • When closing the front window, hold the handle securely with both hands.  The upper side front window can be raised and stowed in the interior ceiling. 4-46 5/2020 CC1908S-1...
Page 113 The upper part of the front window can be detached. Check that the levers (B) are securely locked. 5/2020 CC1908S-1 4-47...
Page 114 (E) until they lock with a click. While holding the right and left handles (A), pull the levers (B) downward to unlock. Check that the levers (B) are securely locked. 4-48 5/2020 CC1908S-1...
Page 115: 4.10 Door
UNFASTENING SEAT BELT Press the button (5) on the buckle (4) to release the insertion tab (3) from the buckle (4). The belt automatically retracts, so hold the grip (2) and slowly return it to the retracting device (1). 5/2020 CC1908S-1 4-49...
Page 116 4.11 RETRACTABLE SEAT BELT HANDLING M A E D A Crawler Crane This Page Intentionally Left Blank 4-50 5/2020 CC1908S-1...
Page 117: Chapter 5 Operation
OPERATION...
Page 118: Worksite Precautions
5/2020 CC1908S-1...
Page 119 Evacuation of related personnel from the shock from parts such as the hook or wire. vicinity of the machine Evacuate all personnel, including workers, from the vicinity of the machine to prevent secondary accidents. 5/2020 CC1908S-1...
Page 120: Starting And Stopping Engine
• Check the instruments to ensure that they function properly, and check that each of the control levers is in its neutral position. Always repair any faults discovered during inspection. 5/2020 CC1908S-1...
Page 121 (1), switches, sensors or other similar parts, and cover them. If condensation seeps inside and freezes, the machine may not operate properly when it is next used, resulting in unexpected accidents. 5/2020 CC1908S-1...
Page 122 Check that each control lever is in the "Neutral" position. Unless they are touched, the control levers will be in the "Neutral" position. Insert the key into the starter switch (2), turn the key to the "ON" position, and check the following: 5/2020 CC1908S-1...
Page 123 Check that the lock lever (1) is in the lock The key automatically returns to the "ON" position (L).The engine will not start if the position. lock lever (1) is in the free position (F). 5/2020 CC1908S-1...
Page 124: Engine Warm-Up Operation
Do not accelerate the engine suddenly until Prepare the crane operations while referring warming up is complete. to "5.4.4 OPERATION BEFORE CRANE WORK" on P. 5-29. After starting the engine, allow it to warm up for more than 15 seconds at idle speed. 5/2020 CC1908S-1...
Page 125 Slowly operate the left-hand control lever fully to the "Lower" side (push outside) to fully to the "Extend" side (push forward). fully lower the boom. After the boom has fully extended, hold the lever in that position for 30 seconds. 5/2020 CC1908S-1...
Page 126: Machine Travelling
The engine stops. • Arrange the machine in its "travelling posture" as shown in the figure. Do not drive the machine without stowing the hook block. Remove the starter switch key. 5-10 5/2020 CC1908S-1...
Page 127: High-Speed Travelling Precautions
Be sure to check around the machine to speed even when "2nd speed” is indicated, as ensure there are no persons or obstructions certain conditions must be met before the in the vicinity before starting to move. machine can be switched to 2nd speed. 5/2020 CC1908S-1 5-11...
Page 128: Permissible Water Depth
• When travelling on a slope, drive the machine perpendicular to the incline and never change direction or travel transversely. Travel safely, for instance by travelling back down to level ground and taking an alternate route. 5-12 5/2020 CC1908S-1...
Page 129: Precautions When Starting And Operating
The door may suddenly open or close under its There is a risk of the machine tilting if the ground gives way due to the weight or vibration own weight, which can create a dangerous of the machine. situation. 5/2020 CC1908S-1 5-13...
Page 130 When parking it away from the worksite, secure the hook block to the hook holder at the front end of the upper slewing body. 5-14 5/2020 CC1908S-1...
Page 131: Moving Before And After Work/During
"5.4.11 CRANE STOWAGE OPERATION" on P. 5-40. • Fully retract the boom. • Fully lower the boom. • Stow the hook block in the designated stowage position (normal stowage position). • Position the sprocket (A) to the rear. 5/2020 CC1908S-1 5-15...
Page 132: Moving Forward
 When the hook block is in the simple stowage position, it may be loosened by vibration during travelling. If this occurs, simply stow the hook block in the simple stowage position again. 5-16 5/2020 CC1908S-1...
Page 133: Reversing
• If the sprocket (A) is at the rear of the machine, pull the travel levers slowly toward you to start moving. • If the sprocket (A) is at the front of the machine, push the travel levers (5) slowly forward to start moving. 5/2020 CC1908S-1 5-17...
Page 134: Changing Machine Direction When Stopped
(A): Left turn in forward direction (B): Left turn in reverse direction  To turn on the spot to the right, pull the right travel lever toward you and push the left travel lever forward. 5-18 5/2020 CC1908S-1...
Page 135: Crane Operation
"5.2.5 STOPPING ENGINE" on P. 5-10. issue a warning or alarm even if overload is approached. As a result, there is a risk of the wire rope breaking when the actual rated total load exceeds the range for 2 falls. 5/2020 CC1908S-1 5-19...
Page 136 • Use the horn switch to sound the horn to notify people in the vicinity of danger while operating the crane. 5-20 5/2020 CC1908S-1...
Page 137 If operating. condensation seeps inside and freezes, the machine may not operate properly when it is next used, resulting in unexpected accidents. 5/2020 CC1908S-1 5-21...
Page 138 24.5 dislodged. • If an earthquake occurs, stop operations and Trees are uprooted. wait for the earthquake to subside. 24.5 to less Houses sustain major than 28.5 damage. 28.5 to less Widespread structural than 32.7 damage occurs. 5-22 5/2020 CC1908S-1...
Page 139 When the load leaves the ground, stop wire ropes. winding up the load briefly and check that • Use wire ropes specified by Maeda. the load is stable. • Otherwise, there is a risk of injury if wires • Before hoisting a slung load, always check break or fly out.
Page 140 Next, operate the winch lever downward (i.e., push it forward) to wind down the hook block. Boom extending also hoists the hook block. Allow sufficient distance between the boom and hook block when operating the crane. 5-24 5/2020 CC1908S-1...
Page 141 • Take care when telescoping the boom to Adhere to the following precautions to avoid check the winding of the hook block. the wire rope from winding up irregularly: 5/2020 CC1908S-1 5-25...
Page 142 Joint hoisting is a highly dangerous operation that may cause the machine to topple due to an offset centre of gravity. It can also cause the 5-26 5/2020 CC1908S-1...
Page 143 Drawing in a load or standing it upright by boom DO NOT ALLOW PERSONS INSIDE THE derricking is prohibited. WORKING RADIUS Do not allow personnel to approach the working radius such as letting operators enter under a hoisted load. 5/2020 CC1908S-1 5-27...
Page 144 Be careful not to catch the wire rope on a tree or positioning the machine. girder while working. Be sure to check the level of the machine with If it becomes entangled, do not force it. Untangle the level gauge. the rope and then wind it. 5-28 5/2020 CC1908S-1...
Page 145 If the hook block (4) is removed from the stowage rope (5) without the boom being raised to near the stowage position, the hook block (4) will sway considerably, possibly damaging surrounding equipment and resulting in serious personal injury. 5/2020 CC1908S-1 5-29...
Page 146: Normal Hoisting And Lowering
 Adjust the winch hoisting and lowering winch drum. speed by varying the stroke of the right-hand control lever (1) and the depression of the accelerator pedal (2). 5-30 5/2020 CC1908S-1...
Page 147: 2Nd-Speed Hoisting And Lowering
 If the actual load on the moment limiter is 0.5 t or more, 2nd speed hoisting cannot be selected even when the winch 1st speed/2nd speed selector switch is pressed. 5/2020 CC1908S-1 5-31...
Page 148 Operate the right-hand control lever (1) as follows: • Lowering: Push the lever outside (right side). • Neutral: Release your hand from the lever. The lever returns to the neutral position and boom derricking stops. • Raising: Pull the lever inside (left side). 5-32 5/2020 CC1908S-1...
Page 149 • When the boom is extended for a long time, the boom retracts slightly due to the temperature change in the hydraulic oil. If this occurs, extend the boom as necessary. 5/2020 CC1908S-1 5-33...
Page 150 (2).  When the boom extends, the second stage extends first, then the third stage and finally the fourth and fifth stages extend simultaneously. When the boom retracts, it retracts in the reverse order of extension. 5-34 5/2020 CC1908S-1...
Page 151 • Left slewing: Push the lever outside (left side). • Neutral: Release your hand from the lever. The lever returns to the neutral position and the slewing stops. • Right slewing: Pull the lever inside (right side). 5/2020 CC1908S-1 5-35...
Page 152 • Decrease the speed at the beginning and near the end of operations. Change the speed to low or high according to the load.  Perform work by depressing the pedal to the engine speed position necessary for the work involved. 5-36 5/2020 CC1908S-1...
Page 153: Setting/Cancelling Boom Height Upper Limit
Long-tap the symbol with the upper limit value C. Limit alarm set. The monitor display changes to blue, and the • The applicable working range limit display upper limit setting is cancelled. flashes in orange. • The working status lamp illuminates in yellow. 5/2020 CC1908S-1 5-37...
Page 154: Setting/Cancelling
[Cancelling] limit setting is cancelled. Long-tap the symbol with the upper or lower limit set. The monitor display changes to blue, and the upper or lower limit setting is cancelled. 5-38 5/2020 CC1908S-1...
Page 155: Setting/Cancelling Slewing Angle Limit
"OFF" position. The monitor display changes to blue, and the setting is cancelled. IMPORTANT Slewing can be locked by setting both the clockwise and counterclockwise slewing limit settings to the same slewing position. 5/2020 CC1908S-1 5-39...
Page 156: Checking Settings/Cancel All
"Lowering" operation. Use the hoisting operation simultaneously to prevent the hook block from falling sideways on the ground. • Perform the hoisting operation slowly, and do not stow the hook block using 2nd- speed hoisting. 5-40 5/2020 CC1908S-1...
Page 157 "Hoist up" side (pull toward you) and hoist the hook block (3) until it pushes up the Lowering the boom lowers the hook weight (4) and stops automatically block. Use the hoisting operation as (overwinding state). appropriate to hoist the hook block. 5/2020 CC1908S-1 5-41...
Page 158: Normal Hook Block Stowage
Loads cannot be raised by operating the prevent the hook block from coming into contact with the ground. winch using this lever, but this is not a fault. The figure shows the hook block (3) stowed beneath the boom tip. 5-42 5/2020 CC1908S-1...
Page 159 Be careful not to allow the hook block (3) and stowage rope (4) to be overtightened while doing this. Do not lower the hook block (3) excessively here. If it is lowered excessively, the loosened hook block (3) may damage surrounding equipment. 5/2020 CC1908S-1 5-43...
Page 160: Pick & Carry Operation
• Slopes, soft ground such as marshes, ground with many obstructions, bumpy ground such as a riverbed, ground with level differences • Near deep trenches and road shoulders • In water or shallows, on snow or frozen road surfaces 5-44 5/2020 CC1908S-1...
Page 161 Travelling is prohibited if the machine is overloaded or if the boom length is 9.0 m or greater.  Travelling is not possible when the travelling prohibited indicator is displayed to ensure safety. 5/2020 CC1908S-1 5-45...
Page 162 DERRICKING OPERATION on P. 5-32" before hoisting the load. Keep the hoisted load close to the ground to prevent it from swaying. If the moment limiter overload function activates, refer to "4.3.3.2 RECOVERY OPERATION AFTER OVERLOAD" on P. 4-22. 5-46 5/2020 CC1908S-1...
Page 163: Air Conditioner Operation
CONTROL PANEL COMPONENT NAMES (1) Fan OFF switch (5) Fresh/recirculating air selector switch (2) Temperature setting switches (6) Air outlet selector switch (3) Display monitor (7) Auto switch (4) Fan switches (8) A/C switch 5/2020 CC1908S-1 5-47...
Page 164 18 °C to 32 °C in 0.5 °C increments.  Operating this switch in auto mode cancels auto mode. [Monitor display and air flow] The gauge bars increase to indicate a stronger air flow. 5-48 5/2020 CC1908S-1...
Page 165 Front air outlet (1 location) monitor as front/rear/defroster. Then, close • Air outlet (C): Foot air outlet (1 location) the defroster and rear air outlets. • Air outlet (D): Front windscreen upper/lower defroster air outlets (2 locations) 5/2020 CC1908S-1 5-49...
Page 166: Auto Mode
• The air conditioner will turn off if the fan is not running. Press the air conditioner switch to turn it to "ON". 5-50 5/2020 CC1908S-1...
Page 167: Operation Stop
Press the fresh/recirculating air selector switch to select either interior air recirculation or fresh air intake. Press the fresh/recirculating air selector switch to draw in fresh air. 5.6.3.3 OPERATION STOP Press the fan OFF switch to stop the fan. 5/2020 CC1908S-1 5-51...
Page 168: Cab Radio Operation
• The preset button memory will be erased when the battery is replaced. If this occurs, reset the preset buttons. To demist the windows or lower the humidity (e.g., during the rainy season), press the air conditioner switch to turn it to "ON". 5-52 5/2020 CC1908S-1...
Page 169 (b) Displays the frequency in 50 kHz steps (FM). (f) Turns on for bass adjustment with sound quality (c) Turns on when a stereo signal is received with adjusted. FM1/FM2 selected. (d) Turns on for balance adjustment with sound quality adjusted. 5/2020 CC1908S-1 5-53...
Page 170 [6] Display selector button (DISP) This button toggles between the radio frequency display and time display. It can also be used to adjust the clock. For details on how to adjust the clock, refer to "5.7.3.4 CLOCK ADJUSTMENT" on P. 5-56. 5-54 5/2020 CC1908S-1...
Page 171: Tuning
(8). frequency on the display (8). Use the tuning buttons (4) to adjust the treble. • > button: Emphasizes treble • < button: Attenuates treble Use the tuning buttons (4) to tune to the desired frequency. 5/2020 CC1908S-1 5-55...
Page 172: Clock Adjustment
• < button: Each time the button is pressed, the time is put back by one minute. (Holding down the buttons shifts the minutes continuously.) Press the display selector button (6) to exit time adjustment. 5-56 5/2020 CC1908S-1...
Page 173: Blade (Option)
[Precautions during debris clearing] • Check for safety around the machine before clearing debris. There is a danger of injury to other persons, machine toppling if the crawlers slip off, or collision with the crane tip, resulting in serious accidents. 5/2020 CC1908S-1 5-57...
Page 174 Debris clearing The blade can be used to clear debris to make space for installing the crane. • Raise blade: Pull the lever toward you. • Lower blade: Push the lever forward. 5-58 5/2020 CC1908S-1...
Page 175: Fly Jib (Option)
Be sure to check each part of the fly jib and make sure there is no deformation or cracking on the welded section before starting work. 5/2020 CC1908S-1 5-59...
Page 176 (A2) Position pin A2 (9) Overwinding detector weight (A3) Position pin A3 (10) Single hook (A4) Position pin A4 (11) Snap sheave (B) Position pin B (12) Wire rope (L) Linchpin (13) Wire (R) Fly jib remote controller 5-60 5/2020 CC1908S-1...
Page 177: Mounting
• The single-fall hook, nylon sling, and lever block should be stored in the optional tool box when not in use. • Do not use the nylon sling and lever block provided with the fly jib for hoisting loads. 5/2020 CC1908S-1 5-61...
Page 178 Otherwise there is a risk of it becoming trapped and damaged. Start the engine. Select "Fly Jib Installation/Stowage" mode on the User Settings screen. Place the lock lever in the free position (F). 5-62 5/2020 CC1908S-1...
Page 179 Pull out the linchpin (L), then pull out the Insert the position pins (A1, A2) into the position pins (A1, A2, A3, A4). holes (a1, a2). Be sure to insert the position pins from above and securely lock in place with the linchpins (L). 5/2020 CC1908S-1 5-63...
Page 180 • Operate using the fly jib remote controller WARNING while standing on the ground. Take care when removing the lever block, as the fly jib will fall if there is no pressure remaining inside the derricking cylinder. 5-64 5/2020 CC1908S-1...
Page 181 • Do not extend the boom more than is • Check that the harness connectors are necessary. securely inserted after reconnecting. • Never insert fingers into the pin holes. Align • Fit plugs to protect the unused connectors. the hole positions visually. 5/2020 CC1908S-1 5-65...
Page 182 Attach caps to the couplers (53) and side of the fly jib base using the following (54) on the fly jib side. procedure: WARNING Be sure to check that the engine has been shut down before starting work. 5-66 5/2020 CC1908S-1...
Page 183 Lower the boom to lower the hook to the ground. Remove the bolt (39) to pull out the wedge socket pin (38) and remove the wedge socket (37) from the main boom. Remove the wire clip (40). 5/2020 CC1908S-1 5-67...
Page 184 (46) on the right side socket pin (49) with the clamping hole (c) in surface of the No. 1 fly jib (2). the wire socket (37), then secure with the washer (51) and bolt (50). 5-68 5/2020 CC1908S-1...
Page 185: Stowing
Leave the wire rope (12) with a suitable • Check that the harness connectors are amount of slack. securely inserted after reconnecting. CAUTION • Fit plugs to protect the unused connectors. Be sure to use the hook stowage lever when winching a single hook. 5/2020 CC1908S-1 5-69...
Page 186 (52) on the boom side. side of the fly jib base using the following procedure: Select "Fly Jib Installation/Stowage" mode on the User Settings screen. WARNING Be sure to check that the engine has been shut down before starting work. 5-70 5/2020 CC1908S-1...
Page 187 Place the lock lever in the free position (F). • Do not insert fingers into the pin holes. Align the hole positions visually. • Operate using the fly jib remote controller while standing on the ground. 5/2020 CC1908S-1 5-71...
Page 188 • Check that fly jib slide plate is not caught on the stowage bracket while retracting the boom.  The fly jib remote controller can be attached to the right side of the boom for convenience. 5-72 5/2020 CC1908S-1...
Page 189 Take care here, as the fly jib may move under the linchpins (L). its own weight when the pin is removed.  If the pin is difficult to remove, shaking the fly jib up and down makes it easier to remove. 5/2020 CC1908S-1 5-73...
Page 190 (37) by lightly tapping with a hammer in the direction indicated by the arrow (a) on a 6 mm to 8 mm diameter round bar (A) placed against the rope wedge (41), and then remove the wire rope (12). 5-74 5/2020 CC1908S-1...
Page 191 (38) with the bolt (39). 2 falls Single fall Always use the boom raising operation to lift the hook block off the ground. Do not use the winching operation for this, as this will cause irregular winding. 5/2020 CC1908S-1 5-75...
Page 192: Boom Derricking Operation
Operate the right-hand control lever (1) as follows: Lower Raise • Lower: Push the lever forward. • Neutral: Release your hand from the lever. The lever returns to the "Neutral" position and the fly jib derricking stops. • Raise: Pull the lever back. 5-76 5/2020 CC1908S-1...
Page 193: Searcher Hook (Option)
• See "Chapter 2: Safety" for more information on precautions other than those indicated in this section. 5/2020 CC1908S-1 5-77...
Page 194 (16) Overwinding detector harness (4) Shackle (17) Overwinding detector (5) Swivel hook (A1) Position pin A1 (φ35×148L) (11) Sheave head (A2) Position pin A2 (φ30×186L) (12) Sheave pin (A3) Position pin A3 (φ30×130L) (13) Sheave (L) Linch pin 5-78 5/2020 CC1908S-1...
Page 195: Mounting Searcher Hook
Securely lock the position pins (A1) with the linch pins (L). The bracket (1) must be lifted by a crane for mounting. To lift it, set the sling to the hook at the top of the bracket. 5/2020 CC1908S-1 5-79...
Page 196 Remove the hook block and wire rope from the boom head For the removal procedure, refer to steps 1 to 9 of "6.18.1.4 [1] Removal of Winch Wire Rope" on P.6-79. 5-80 5/2020 CC1908S-1...
Page 197 Set the searcher hook setting on the user setting screen of the monitor to "Winch OFF". Fold the stowage rubber (7) in half and pass it through the guide roller and wire socket on the underside of the boom before hooking it. 5/2020 CC1908S-1 5-81...
Page 198: Mounting Winch Sheave
Nut (22) ：231±35 N‣m Pass the wire rope (31) through the circle of Attach an overwinding detector (17), the overwinding detection weight (15). overwinding detector ropes (18) and an overwinding detector weight (19) to the sheave head (11). 5-82 5/2020 CC1908S-1...
Page 199 The winch sheave must be removed in the reverse order of mounting the winch sheave. When you remove the searcher hook from the unit, be sure to switch to "Without Searcher Hook" in the searcher hook setting on the user setting screen. 5/2020 CC1908S-1 5-83...
Page 200 If work is performed without the correct setting, the moment limiter value will not be displayed correctly, and there is a risk of serious injury due to the machine tipping over or being damaged. Moment Limiter Setting Actual Position Position Selection Display 5-84 5/2020 CC1908S-1...
Page 201: For Searcher Hook
Sudden lever operation may cause excessive force to be applied, damaging the searcher hook and causing a serious accident. The crane operation will be the same as a normal crane operation. Refer to "5.4 CRANE OPERATION" on P.5-19. 5/2020 CC1908S-1 5-85...
Page 202: Transport
(low engine speed) and transporting, contact us or our sales service operate by travelling the machine slowly. agency. • Always travel in reverse when loading the machine. Moving forward may cause the machine to topple. 5-86 5/2020 CC1908S-1...
Page 203 • Always travel in reverse when loading the machine. Moving forward may cause the machine to topple. • Always travel forward when unloading the machine. Reversing may cause the machine to topple. 5/2020 CC1908S-1 5-87...
Page 204: Loading
In cold conditions, warm up the engine fully. the following procedure: Place the lock lever in the free position (F). Set the travel speed to 1st speed. To change the travel speed, press the travel 1st speed/2nd speed selector switch. 5-88 5/2020 CC1908S-1...
Page 205: Securing The Machine
Never attempt to adjust the direction of travel. The machine will tilt backward when it has passed over the rear wheels. Carefully reverse to the designated position and stop. 5/2020 CC1908S-1 5-89...
Page 206: Unloading
Remove the chains or wire ropes securing the machine. Start the engine. In cold conditions, warm up the engine fully. Place the lock lever in the free position (F). 5-90 5/2020 CC1908S-1...
Page 207 When lifting the machine, use the following procedure on firm, level ground: Attach the stowage rope to the hook block to arrange the machine in the stowage posture. Place the safety lock lever (1) securely in the lock position (L). 5/2020 CC1908S-1 5-91...
Page 208 Be sure to hoist from four points, as shown in the following figure: Lift the machine slowly. Immediately after lifting off the ground, stop briefly to check the state of the hoisting accessories and slinging posture. 5-92 5/2020 CC1908S-1...
Page 209: Chapter 6 Maintenance And Inspection
MAINTENANCE AND INSPECTION...
Page 210: Maintenance Precautions
Also, [2] Use genuine parts for replacement attach a warning tag to the machine control levers. Always use genuine Maeda parts as specified in the parts catalogue for part replacement. [12] Observe safety precautions...
Page 211 When replenishing the oil, replace the entire [17] Inspect undercarriage amount. When working in rocky locations, check for Always use genuine Maeda parts for part damage to the undercarriage, loose nuts and bolts, replacement. cracking, wear, and damage. Loosen the tension of the crawler tracks more than usual.
Page 212: Basic Maintenance
• Air must be bled from the circuit when the machine runs out of fuel or when the fuel filter has been replaced. • Clean the tank and fuel system if any foreign matter enters the fuel tank. 5/2020 CC1908S-1...
Page 213 If metal powder is found in a used filter, contact us or our sales service agency. • Do not remove replacement filters from their package until immediately prior to use. • Always use genuine Maeda filters. 5/2020 CC1908S-1...
Page 214 Keep records of the administrator's name, location elements and strainers, repair and replacement of of the machine, initial amount of freon filled, and hydraulic equipment, and hydraulic pipe removal. dates of inspection, repair, refrigerant recovery, and refrigerant filling until the machine is disposed of. 5/2020 CC1908S-1...
Page 215: Legal Inspection
(cracking, abrasion, and tearing) Oil leakage from the joints and caulking of fuel hoses and Specified user hydraulic hoses inspection Interference, collapsing, ageing, (annual twisting, and damage (cracking, inspection) abrasion, and tearing) of fuel hoses and hydraulic hoses 5/2020 CC1908S-1...
Page 216 Fuel line wear limit. Suction line Proper replacement of consumables ensures greater Pump line cost-efficiency while using the machine. Return line Always use Maeda genuine parts for parts Every 2 years Travel line replacement. or every 2,000 Hydraulic Slewing line...
Page 217 Side window (left) A/C compressor belt Door window (upper)  Door window (lower) For details on individual fuse ratings, refer to "6.7 FUSES" on P. 6-16 and "6.8 FUSIBLE LED lights LINKS" on P. 6-17. Interior lamp (10 W bulb) 5/2020 CC1908S-1...
Page 218: Use Of Fuel And Lubricating Oil
• When starting the engine at temperatures of 0 °C or lower, always use the recommended multigrade oil, even if the daytime temperature is higher. 6-10 5/2020 CC1908S-1...
Page 219 (3) To maintain the anti-corrosion performance of the coolant, always keep the concentration at 30 % to 60 % or higher. (4) Use coolant equivalent to or better than the following standards. • ASTM D6210 or D4985 • JIS K-2234 • SAE J814C, J1941, J1034, or J2036 5/2020 CC1908S-1 6-11...
Page 220 Lubrication area Specified oil quantity (L) Replacement oil quantity (L) Engine oil 11.6 10.5 Hydraulic oil system Travelling motor gearbox casing (right) Travelling motor gearbox casing (left) Winch motor gearbox casing Cooling system 15.5 Fuel tank Washer tank 6-12 5/2020 CC1908S-1...
Page 221: Standard Tightening Torques
105-138 142-187 14.4-19.1 22.8 144-190 195-258 19.8-26.2 32.4 204-270 277-366 28.2-37.3 44.0 277-367 376-497 38.3-50.6 56.0 352-465 477-631 48.7-64.4 81.9 516-682 699-925 71.2-94.2 1090 699-922 948-1250 96.5-128 1095 1485 952-1261 1290-1710 131-174 1409 1910 1224-1623 1660-2200 167-223 5/2020 CC1908S-1 6-13...
Page 222 230-312 23.5-31.9 38.1 234-316 317-429 32.4-43.8 54.0 332-448 450-608 45.9-62.1 73.4 451-611 612-828 62.4-84.4 93.3 574-774 778-1050 79.3-107 1340 841-1136 1140-1540 116-156 1342 1820 1143-1542 1550-2090 157-213 1822 2470 1549-2095 2100-2840 214-290 2346 3180 1992-2700 2700-3660 275-373 6-14 5/2020 CC1908S-1...
Page 223 44 to 72 59 to 98 6.0 to 10.0 10.5 62 to 97 84 to 132 8.5 to 13.5 16.0 94 to 137 128 to 186 13.0 to 19.0 22.0 131 to 180 177 to 245 18.0 to 25.0 5/2020 CC1908S-1 6-15...
Page 224: Fuses
Engine controller control (11) 20 A power supply (12) 20 A EGR valve Main controller control (13) power supply Permanent power supply (14) (floor) (15) Horn (16) (17) (18) (19) (20) 20 A Fuel pump power supply 6-16 5/2020 CC1908S-1...
Page 225: Fusible Links
Camera controller power (13) supply (14) Image converter (15) Front window wiper/washer (16) Roof window wiper/washer (17) Option power supply Interior lamp/radio power (18) supply Controller control power (19) supply/monitor control power supply (20) Starter switch ON 5/2020 CC1908S-1 6-17...
Page 226 EFL1 (4) may have blown. • If the starter does not operate when the starter switch is turned to the "START" position, the fusible link EFL2 (5) may have blown. 6-18 5/2020 CC1908S-1...
Page 227: Controller
The fly jib controller is located inside the cover on [2] Machine body sub controller the left side of the fly jib main unit. The machine body sub controller is located inside the cover at the rear of the cab interior. 5/2020 CC1908S-1 6-19...
Page 228: Lockable Doors And Covers
The door or cover is unlocked. Position (A): Open Position (B): Locked [Locking] Close the door or cover and insert the key into the slot. Turn the key clockwise and pull out the key after locking. 6-20 5/2020 CC1908S-1...
Page 229: Battery Compartment Door
To close the door (2), lift the rod (3) to remove it from the slot and close the door. To close the door (3), lift the rod (4) to remove it from the slot and close the door. Lock the door. 5/2020 CC1908S-1 6-21...
Page 230: Right Cover
After opening the door (3), insert the rod (4) in the slot to secure it in place. To close the door (3), lift the rod (4) to remove it from the slot and close the door. Lock the door. 6-22 5/2020 CC1908S-1...
Page 231 (3) and securely fix it to the lever lock. Then, gently lower the machinery cover and push down the machinery cover to lock it. Insert the key into the machinery cover open knob (1) to lock it. 5/2020 CC1908S-1 6-23...
Page 232: Inspection And Maintenance List
Crawler track tension inspection/adjustment (⇒ P. 6-87) ✓ Window washer solution inspection/refilling (⇒ P. 6-88) ✓ Air-conditioner inspection/maintenance (⇒ P. 6-89) ✓ Door rail and roller inspection/cleaning/greasing (⇒ P. 6-90) ✓ Level gauge inspection (⇒ P. 6-91) ✓ 6-24 5/2020 CC1908S-1...
Page 233 Fuel injector inspection/cleaning（⇒ P. 6-72) Water pump inspection (⇒ P. 6-72) Accumulator replacement (⇒ P. 6-72) Hydraulic oil tank oil replacement and strainer washing (⇒ P. 6-73) DPF soot filter inspection/cleaning (⇒P. 6-75) *1 Or every year, whichever comes first 5/2020 CC1908S-1 6-25...
Page 234 Water pump inspection (⇒ P. 6-72) ✓ Accumulator replacement (⇒ P. 6-72) ✓ Hydraulic oil tank oil replacement and strainer washing (⇒ ✓ P. 6-73) DPF soot filter inspection/cleaning (⇒P. 6-75) ✓ *2 Or every 2 years, whichever comes first 6-26 5/2020 CC1908S-1...
Page 235: Inspection
Make a thorough walk-around inspection. If any abnormality is found, be sure to repair it or consult us or our sales service agency. The inspection items described here must be included in the walk-around inspection performed before commencing work at the start of the day. 5/2020 CC1908S-1 6-27...
Page 236 Inspect the cord reel on the left side of the fly jib for any significant damage or deformation. Also check for any damage on the cord reel cables, and make sure they operate smoothly. Repair if any abnormality is found. 6-28 5/2020 CC1908S-1...
Page 237 122.4 mm or 70.8 mm or 2-fall hook more less Single fall 81.6 mm or 39.9 mm or hook more less [For swivel hook] [With single-fall hook] Replacement criteria Swivel hook 38.9mm or more 23.7mm or less 5/2020 CC1908S-1 6-29...
Page 238 Repair if any abnormality is found. • Look around the undercarriage and its lower parts, and check bolts, nuts, pins, and pipe connections for looseness, detachment, damage, or oil leaks. Repair if any abnormality is found. 6-30 5/2020 CC1908S-1...
Page 239: (Before Starting Engine)
• Be careful to avoid allowing any foreign matter into the oil inlet opening when replenishing the oil. Stop the machine on a level surface. Open the machinery cover. 5/2020 CC1908S-1 6-31...
Page 240 • For details on the fuel used, refer to “6.5.1 USE OF FUEL AND LUBRICATING OIL DEPENDING ON TEMPERATURE" on P. 6-11. • Be careful to avoid allowing any foreign matter into the oil inlet opening when refuelling. Stop the machine on a level surface. 6-32 5/2020 CC1908S-1...
Page 241 Close the left cover.  When mounting the fly jib, set the fly jib angle to 0 degrees and fully retract it.  Raise the blade from the ground if attached. 5/2020 CC1908S-1 6-33...
Page 242 If the oil is refilled above the "H" level, drain the excess oil using the following procedure: Depending on the ambient conditions, oil may expand and spurt out even when not filled to the "H" level. If this occurs, adjust by reducing the amount of oil. 6-34 5/2020 CC1908S-1...
Page 243 Inspect the transparent cup (2) and check if water and sediment has accumulated inside Turn the starter switch to the "ON" position. Turn the light switch to the "ON" position to check that the boom working light and head light on. 5/2020 CC1908S-1 6-35...
Page 244 [Seat forward and backward adjustment] Pull the lever (1) upward, adjust the seat to the desired position, and release your hand from the lever (1). • If the mirror is stiff when adjusting, loosen the mirror bolts to adjust. 6-36 5/2020 CC1908S-1...
Page 245: Inspection After Starting Engine
[3] Engine exhaust gas colour, abnormal noise, and vibration inspection Check that the engine exhaust gas colour is either transparent or slightly blue. Also check for abnormal noises and vibrations. Repair if any abnormality is found. 5/2020 CC1908S-1 6-37...
Page 246 "Retract" side (pulled backward). Check that no abnormal noise is generated from the boom or boom telescoping cylinder. Repair if any abnormality is found. 6-38 5/2020 CC1908S-1...
Page 247 3 seconds, the green working mode. status lamp illuminates. Check that no error codes are displayed on the monitor. Start the engine and operate the crane as follows. Then check if the display for the moment limiter is correct. 5/2020 CC1908S-1 6-39...
Page 248 Make sure that the monitor display is in searcher hook mode. Make sure that the actual position of the searcher hook and the position display on the monitor are matched. 6-40 5/2020 CC1908S-1...
Page 249: After Stopping Engine
Be sure to lock the lockable caps and covers. undercarriage. For details on locking, refer to "6.10 LOCKABLE If you find any leakage or abnormality, fix the DOORS AND COVERS" on P. 6-20. problem. Fill up the fuel tank to full. 5/2020 CC1908S-1 6-41...
Page 250: Periodic Maintenance
Grease and oil should be wiped off immediately after use to ensure safe operations. An untidy workplace may cause safety hazards such as tripping or slipping, resulting in injuries. 6-42 5/2020 CC1908S-1...
Page 251 (both feet and one hand, or both these parts. hands and one foot) when climbing up or down the machine. 5/2020 CC1908S-1 6-43...
Page 252 • When standing underneath the machine while it is lifted is unavoidable for inspection or maintenance servicing, securely support the machine using blocks and stays that are sturdy enough to withstand the machine weight. Otherwise, the machine may topple, resulting in serious personal injury. 6-44 5/2020 CC1908S-1...
Page 253: Precautions During Maintenance
The battery generates flammable hydrogen gas when it is being recharged. Before recharging it, remove it from the machine and recharge in a well-ventilated place. Remove the battery cap while recharging. Securely tighten the battery cap afterwards. 5/2020 CC1908S-1 6-45...
Page 254 When checking or discharging oil, ensure that the cap and plug have cooled down so that they can be touched with bare hands, thus preventing burn injuries from hot oil spurting out or contact with hot parts. 6-46 5/2020 CC1908S-1...
Page 255 • When loosening the grease discharge plug (1) • Foreign objects embedded in the coating to reduce the crawler tension, do not rotate it by more than one turn. Likewise, loosen the grease discharge plug (1) slowly. 5/2020 CC1908S-1 6-47...
Page 256 Care must be taken to avoid environmental Do not drill, weld, or gas-cut. pollution when disposing of waste. Do not hit, roll over, or subject to impact. When disposing of, the gas inside must be removed. Contact us or our sales service agency. 6-48 5/2020 CC1908S-1...
Page 257 Refer to "6.4.1 PERIODIC REPLACEMENT OF CRITICAL PARTS" on P. 6-7. • If any abnormality is observed in a critical part, replace it even if it has not reached the time for regular replacement. 5/2020 CC1908S-1 6-49...
Page 258 Use a brush or a roller to apply the boom grease. Apply red rope grease to prevent wire rope wear and corrosion. After cleaning the rope surface, grease the rope with a brush. 6-50 5/2020 CC1908S-1...
Page 259 M A E D A Crawler Crane 6.17 PERIODIC MAINTENANCE 5/2020 CC1908S-1 6-51...
Page 260 No. 1 fly jib, slide roller contact surface Each part Grease the grease fittings using a grease gun. Thoroughly wipe away any old grease exuded after greasing. Use a brush or a roller to apply the boom grease. 6-52 5/2020 CC1908S-1...
Page 261 1 N･m to 2 N･m (0.1 kgf･m to 0.2 kgf･m) Be sure to retighten the air bleeding bolt if it was loosened. Open the fuel cock. Bleed the air, referring to "6.19.6 FUEL CIRCUIT AIR BLEEDING" on P. 6-99. Check that there is no fuel leakage. 5/2020 CC1908S-1 6-53...
Page 262 Replenish the oil until it overflows from the oil level check plug (G) hole. Wipe clean any spilt oil. After checking and refilling oil, reattach the oil inlet plug (F) and oil level check plug (G) and securely tighten them. 6-54 5/2020 CC1908S-1...
Page 263 (G) hole. Wipe clean any spilt oil. After checking and refilling oil, reattach the oil inlet plug (F) and oil level check plug (G) and securely tighten them. Attach the cover (C). 5/2020 CC1908S-1 6-55...
Page 264 If tension adjustment is necessary, proceed ・M10 bolt: 48.0 N･m [4.9 kgf･m] to Step 5 of [Tension adjustment]. If the tension is satisfactory, proceed to Step 9 Attach the fan guard (2). Close the machinery cover (1). 6-56 5/2020 CC1908S-1...
Page 265 Attach the fan (2) guard and compressor sooner than the maintenance schedule guard (3). indicates. Close the machinery cover (1). Also clean the air cleaner immediately if an air cleaner clogging error occurs. 5/2020 CC1908S-1 6-57...
Page 266 Align the mark on the dust cup (3) with the if it is particularly dirty. mark on the air cleaner body, and secure in place with the clip (2). 6-58 5/2020 CC1908S-1...
Page 267 Inspect the front and back sides of the radiator fins (1), oil cooler fins (2), and A/C condenser fins (3). If any dirt, dust, or leaves are adhering to them, blow them off using compressed air. 5/2020 CC1908S-1 6-59...
Page 268 • Prepare a filter wrench. Turn the upper slewing body to the right by 90 degrees. Remove the under cover below the engine oil filter, and place a container to catch the drained oil under the drain bolt (3). 6-60 5/2020 CC1908S-1...
Page 269 [2] Swing pinion grease level inspection/ refilling • Prepare a scale (rule). Remove the bolts on the tank cover (1) and Thoroughly wipe away any old grease post cover (2), and remove the cover. exuded after greasing. 5/2020 CC1908S-1 6-61...
Page 270 After washing, dry thoroughly before using it. If clogging of the filter cannot be removed with compressed air or by washing, replace it with a new one. Reinstall the cleaned interior air filter (1) to its original position. 6-62 5/2020 CC1908S-1...
Page 271 IMPORTANT Genuine fuel filter cartridges feature a special filter with high-efficiency filtering characteristics. Always use genuine Maeda filters for replacement. • Prepare a container to catch the drained oil. Fit the new cap. • Prepare a dedicated filter wrench.
Page 272 • Genuine fuel filter cartridges feature a special filter with high-efficiency filtering Open the fuel cock to its original position. characteristics. Always use genuine Maeda After replacing the filter cartridge (4), refer to filters for replacement. "6.19.6 FUEL CIRCUIT AIR BLEEDING" on •...
Page 273 Remove the element referring to "[6] Air cleaner inspection/cleaning" on P. 6-57. IMPORTANT • Avoid using the element if the groove, gasket, or seal is damaged. • Package unused elements and store them in a dry place. Mount the new outer element (4). 5/2020 CC1908S-1 6-65...
Page 274 • Prepare a hexagonal wrench. Place a container to catch drained oil under the drain plug (P). Use a hexagonal wrench to remove the oil inlet plug (F), oil level check plug (G), and drain plug (P) and drain the oil. 6-66 5/2020 CC1908S-1...
Page 275 Oil level check plug: 12.3 N･m ±2.4N･m (1.25 kgf･m ±0.25 kgf･m) Oil inlet plug: 58.8 N･m ±11.7N･m (6 kgf･m ±1.2 kgf･m) Attach the cover (C). Open the left cover, and insert the rod in the slot to secure it in place. 5/2020 CC1908S-1 6-67...
Page 276 (4). This allows the air bubbles trapped in the oil in the hydraulic oil tank to discharge into the atmosphere. Check for any oil leakage, and wipe away any spilt oil. 6-68 5/2020 CC1908S-1...
Page 277 Make sure that the old O-ring is not stuck to the filter base (4). Otherwise, it may cause oil leakage. [5] Engine valve clearance inspection/adjustment Special tools are required for inspection and adjustment. Contact us or our sales service agency for servicing. 5/2020 CC1908S-1 6-69...
Page 278 For actual mixing, select a temperature approximately 10 degrees lower than the minimum temperature. [Water and coolant mixture ratio table] Min. temperature (°C) -15 -20 -25 -30 Mixed quantity (L) Coolant (%) Water (%) 6-70 5/2020 CC1908S-1...
Page 279 (6) to the radiator. Securely attach the radiator cap (2). Replenish cooling water to the specified quantity for the sub tank, and close the cap on the sub tank (6). 5/2020 CC1908S-1 6-71...
Page 280 Special tools are required for inspection. Contact us or our sales service agency for servicing. [5] Fuel injector inspection/cleaning Special tools are required for inspection. Contact us or our sales service agency for servicing. 6-72 5/2020 CC1908S-1...
Page 281 • Prepare a container to catch the drained oil. Place a container to catch the drained oil under the drain plug on the underside of the machine body. Remove the drain plug (P) slowly to avoid splashing oil on yourself, and drain the oil. 5/2020 CC1908S-1 6-73...
Page 282 (F). Check to ensure that the level is within the range H-L on the sight gauge. For details on oil level checking procedures, refer to "[4] Hydraulic oil tank oil level inspection/refilling" in "6.16.1.2 INSPECTION BEFORE STARTING ENGINE" on P. 6-31. 6-74 5/2020 CC1908S-1...
Page 283: Irregular Maintenance
(excluding filler wires): • 10 % or more over a single twist of rope. However, if breakage occurs in a single strand only, the ratio should be 5 % or more. 5/2020 CC1908S-1 6-75...
Page 284 As a result of the form collapsing, the following is observed: • Strands that are kinked • When the width of an undulation exceeds 4/3d within a section that is 25 times the nominal diameter d Undulation width 6-76 5/2020 CC1908S-1...
Page 285: And Rated Total Load
90kg 90kg Hook used for both 2 falls Hook type Hook for single fall only and 4 falls Number of falls 2 falls Single fall Reeving system Maximum rated 3090kg 1520kg total load Hook weight 90kg 20kg 5/2020 CC1908S-1 6-77...
Page 286: Correcting Winch Wire Rope Twisting
Start the engine and operate the boom derricking lever to the "Raise" side (pull inside) to raise the boom to the maximum angle. Operate the left-hand control lever to the "Extend" side (push forward) to extend the boom to the longest length. 6-78 5/2020 CC1908S-1...
Page 287: Winch Wire Rope Replacement
Place a 6 mm to 10 mm diameter round Stop the machine on firm, level ground, fully bar (A) in contact with the rope wedge retract the boom, and set the boom angle to (6). approximately 20 degrees. 5/2020 CC1908S-1 6-79...
Page 288 Wind up the remaining wire rope (5) (11) at the boom tip, wire guide (12) on boom completely. Nos. 2, 3 and 4, roller sheave (13), sheave (14) inside the boom derricking cylinder mounting bracket, and the slide sheave (15). 6-80 5/2020 CC1908S-1...
Page 289 At this point, leave approximately 10 m of wire rope unwound ahead of the boom tip. IMPORTANT To prevent irregular winding, apply a tension force of approximately 1.47 kN (150 kg) to layers 1, 2 and 3 while winding. 5/2020 CC1908S-1 6-81...
Page 290: Boom Telescoping Wire Rope
"Raise" side (pull inside), or operate the left-hand control lever to the "Extend" side (push forward) to raise the hook block. Do not operate the winch until after the hook block has been raised. Use the boom fully extended and fully raised. 6-82 5/2020 CC1908S-1...
Page 291 No. 4 and No. 5 booms to check if it is 5 mm or more when fully retracted. If the gap is 5 mm or more, refer to the "Wire rope adjustment" section and adjust. 5/2020 CC1908S-1 6-83...
Page 292 • If the gap (a) is 5 mm or more, adjust the No. 5 boom retraction wire rope (5). • If the gap (a) is zero, adjust as described in item 5, "No.5 boom extension wire rope (8) adjustment". 6-84 5/2020 CC1908S-1...
Page 293: Derrick Wire Rope Inspection/Adjustment
Secure the No.5 boom retraction wire rope (8) adjustment nuts (7) with lock nuts (6). Further tighten the No.5 boom extension wire rope (5) adjustment bolts (4) by two turns, then secure with the lock bolts (3). 5/2020 CC1908S-1 6-85...
Page 294: Inspection
After checking, retighten them at a tightening angle of 90 +/-10 degrees. [2] Tightening sequence Tighten the bolts in the order indicated in the diagram. After tightening, check that the nuts and shoes are a tight fit with the link mating surfaces. 6-86 5/2020 CC1908S-1...
Page 295: Adjustment
As reversing or replacement of pins and Reference value for sagging dimension (a): bushings is required, contact us or our sales 10 mm to 30 mm is the normal range. service agency for repairs. 5/2020 CC1908S-1 6-87...
Page 296 Check the tension of the crawler tracks again. If the tension is not correct, readjust. 6-88 5/2020 CC1908S-1...
Page 297 [3] Storage of inspection/maintenance servicing history Keep records of the administrator's name, location of the machine, initial amount of freon filled, and dates of inspection, repair, refrigerant recovery, and refrigerant filling until the machine is disposed 5/2020 CC1908S-1 6-89...
Page 298 (1) and rollers (2). ected parts, gas After applying the lubricant, slide the door to leakage and damage ensure that it opens and closes smoothly. Contact us or our sales service agency if it cannot be moved smoothly. 6-90 5/2020 CC1908S-1...
Page 299: When Such Aphenomenon Occurs
Turn the starter switch to the "ON" position to operate the fuel pump. Do not turn the switch to the "START" position. Allow the fuel pump to run for approximately 15 seconds. Turn the starter switch to the "START" position to start the engine. 5/2020 CC1908S-1 6-91...
Page 300: Battery Handling Precautions
If it moves, secure it again. terminal first when installing the battery cable. [1] Removal Objects such as tools coming between the (+) terminal and the machine body will Turn the disconnecting switch to "OFF". cause sparks, which is dangerous. 6-92 5/2020 CC1908S-1...
Page 301: Precautions When Recharging Battery
• When connecting a booster cable, keep the Attach the mounting bracket (4), then attach starter switch key for both machines at the the nut (3). "OFF" position. Attach the plastic cover (2), and tighten the two mounting bolts (1) securely. 5/2020 CC1908S-1 6-93...
Page 302 The starting system of this machine is 24 V. • Check that the cable and clips are not damaged or corroded. • Connect the clips securely. • Check that each control lever is in the neutral position. 6-94 5/2020 CC1908S-1...
Page 303 "START" position, and start the engine. If the engine does not start, wait for at least one minute before attempting to start again.  For details on how to start the engine, refer to "5.2.3 STARTING ENGINE" on P. 5-7. 5/2020 CC1908S-1 6-95...
Page 304: Piston Pump Air Bleeding
(1) of the port D on the pump. (1) Right forward/right reverse (2) Left forward/left reverse (3) Boom raising/lowering (4) Winch up/down (5) Boom telescoping (6) Left slewing/right slewing (7) Fly jib raising/lowering (8) Raise/lower blade 6-96 5/2020 CC1908S-1...
Page 305: Cylinder Air Bleeding
Loosen the mechanical brake air bleeding ★ Tightening torque: 29.4 N・m (3 kgf・m) plug (1) by three to four turns. Without hoisting a load, repeat the operation of slowly winding up the hook block, stopping, and then winding down. 5/2020 CC1908S-1 6-97...
Page 306: Travel Motor Air Bleednig
• Use only a sling (e.g. wire rope and shackles) that has been approved and is capable of lifting the weight of the machine. • When hoisting, place the lock lever in the lock position to prevent the machine from moving unexpectedly. 6-98 5/2020 CC1908S-1...
Page 307: Dpf Regeneration
As PM (particulate matter) builds up on the filter inside the DPF, the filter becomes clogged, reducing engine performance. The regeneration process is therefore necessary to burn/remove the PM by raising the exhaust temperature. The regeneration process can be carried out automatically or manually. 5/2020 CC1908S-1 6-99...
Page 308: Dpf Stationary Regeneration
If the DPF regeneration request lamp lights up, perform stationary regeneration manually. For details on the stationary regeneration procedure, refer to "6.19.7.2 DPF STATIONARY REGENERATION" on P. 6-100". Regeneration can be performed while the lamp is flashing. 6-100 5/2020 CC1908S-1...
Page 309: Before Storing Machine
Contact us or our sales service agency for the antifreeze solution The engine speed returns to idle, the DPF mixing ratio. regeneration acknowledgement lamp goes out, and regeneration ends. 5/2020 CC1908S-1 6-101...
Page 310: During Storage
For details on the mixture when replacing the operation and perform warm-up operation cooling water, refer to [1] Cooling water before inspecting the various parts of the replacement in "6.17.9 MAINTENANCE EVERY machine. 2,000 HOURS" on P. 6-70. 6-102 5/2020 CC1908S-1...
Page 311 • Replace the lubricating oil in the various parts with oil of the specified viscosity, referring to "6.5.1 USE OF FUEL AND LUBRICATING OIL DEPENDING ON TEMPERATURE" on P. 6-11. 5/2020 CC1908S-1 6-103...
Page 312: Troubleshooting
Oil cooler fin clogging MAINTENANCE EVERY 250 HOURS" on P. 6-54 and clean. Refer to "6.18 IRREGULAR Crawler tracks detach. Crawler tracks too loose MAINTENANCE" on P. 6-75 Abnormal wear on the sprockets and adjust the tension. 6-104 5/2020 CC1908S-1...
Page 313 Inspect/replace (★) Defective radio Inspect/replace (★) No sound from speaker. Defective wiring Inspect/repair (★) Blown fuse Replace Defective antenna Inspect/replace (★) Radio does not pick up any Move to a location with better stations. Poor radio reception reception. 5/2020 CC1908S-1 6-105...
Page 314 Insufficient battery charge or Recharge/replace (★) the defective battery battery. Disconnecting switch is off. Turn on. Insufficient battery charge Recharge the battery. Starter pinion going in and out repeatedly (struggling) Defective safety relay Replace (★) 6-106 5/2020 CC1908S-1...
Page 315 STARTING ENGINE" on P. 5-6. and refuel. The engine stops during operation. Defective wiring Inspect/repair (★) Defective sensor Inspect/repair (★) Hose pinched or detached Inspect/repair (★) Defective wiring Inspect/repair (★) Defective sensor Inspect/repair (★) Hose pinched or detached Inspect/repair (★) 5/2020 CC1908S-1 6-107...
Page 316 (buzzer does not Defective wiring Inspect/repair (★) sound). Working range restriction Cancel restriction. Crane operation always stops operation under certain conditions. Incorrect limit switch ADJUSTMENT adjustment Defective Inspect/repair (★) The working status lamp does not illuminate. Blown fuse Replace 6-108 5/2020 CC1908S-1...
Page 317 Insufficient of cooling water STARTING ENGINE" on P. 5-6 and ensure the cooling water level is correct. No warm air Heater core damage Replace (★) Defective servo motor Replace (★) Defective wiring Inspect/repair (★) Blown fuse Replace 5/2020 CC1908S-1 6-109...
Page 318 Abnormal phenomenon Main causes Corrective action Inspect/replace (★) Defective operation switch Only the blade cannot be Defective wiring Inspect/repair (★) operated. (No problem with travelling or Defective monitor setting Change settings (★) crane operation) Defective spool Inspect/replace (★) 6-110 5/2020 CC1908S-1...
Page 319 Forgot to replace wiring Overwinding detector does not hook to the tip of the searcher activate. hook. (When a winch is used) Failure of overwinding detector Inspection and replacement (★) Wiring failure Inspection and repair（★） 5/2020 CC1908S-1 6-111...
Page 320: Error Codes And Warnings
This flashes or lights up to indicate incorrect tensioning. the DPF regeneration status. Flashing: Stationary regeneration can be performed. Illuminated: Stationary regeneration is in progress. It clears once regeneration is complete. 6-112 5/2020 CC1908S-1...
Page 321 This lights up if an engine fault occurs. [Hydraulic oil temperature abnormality] Indicates that the hydraulic oil temperature is high. If it lights up, immediately set the engine speed to low idle, and wait until the icon clears (hydraulic oil temperature drops). 5/2020 CC1908S-1 6-113...
Page 322 Only a single error has occurred. Multiple errors. Multiple errors have occurred.  May not be displayed depending on the monitor settings. For details on how to show or hide the display, contact us or our sales service agency. 6-114 5/2020 CC1908S-1...
Page 323 • The numbers indicated by □□□ in the error code will vary depending on the individual error. • Perform a driving cycle after resolving an engine error code. [Driving cycle] Engine start (1 minute) → Engine stop (1 minute) → Engine start (1 minute) → Engine stop (1 minute) 5/2020 CC1908S-1 6-115...
Page 324 6.21 ERROR CODES AND WARNINGS M A E D A Crawler Crane This Page Intentionally Left Blank 6-116 5/2020 CC1908S-1...
Page 325 OPERATION MANUAL for MAEDA CRAWLER CRANE CC1908S-1 Document Number 520E-OM2005-01 First edition 14th February, 2020 Second edition 29th May, 2020 Issued by MAEDA SEISAKUSHO CO., LTD. 1095, Onbegawa, Shinonoi, Nagano City, Nagano Prefecture, 388-8522 Japan Any reproduction or reprinting without permission is prohibited.

Maeda CC1908S-1 Operation Manual

Chapter 1 INTRODUCTION

Chapter 2 SAFETY

Chapter 3 SPECIFICATIONS

Chapter 5 OPERATION

Chapter 6 MAINTENANCE and INSPECTION

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