Zoomlion RT75 Operator's Manual
  1. Manuals
  2. Brands
  3. Zoomlion Manuals
  4. Construction Equipment
  5. RT75
  6. Operator's manual

Zoomlion RT75 Operator's Manual

Rough terrain crane
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
OPERATOR'S MANUAL FOR
RT75 ROUGH TERRAIN CRANE
Address:Quantang Indust=rial Park, 2nd Yuanda Road,
Changsha Economic and Technological Development
Zone, Hunan Province, China
Postcode: 410131
Website: www.zoomlion.com

Advertisement

Table of Contents
loading

Related Manuals for Zoomlion RT75

Summary of Contents for Zoomlion RT75

  • Page 1 OPERATOR'S MANUAL FOR RT75 ROUGH TERRAIN CRANE Address:Quantang Indust=rial Park, 2nd Yuanda Road, Changsha Economic and Technological Development Zone, Hunan Province, China Postcode: 410131 Website: www.zoomlion.com...
  • Page 2 RT75 ROUGH TERRAIN CRANE OPERATOR’S MANUAL Edition 1 Dec. 2013...
  • Page 4 The operator must keep this manual in the cab of the crane. If there is anything in the manual that you do not understand, speak with us. We (Zoomlion Cranes) are NOT responsible for damages from an operator who does not obey the instructions in the OPERATOR’S MANUAL.
  • Page 5 Refers to a tip or hint in the operation instructions. Important Emphasizes the importance of the data in this manual. This symbol shows a step or procedure that is not approved and can cause a dangerous situation. RT75 Rough Terrain Crane...

  • Page 6: Table Of Contents

    7.15 Boom derricking operation ..................07-31 7.16 Swing operation ...................... 07-33 7.17 Multifunctioning ....................... 07-36 7.18 Jib operation......................07-43 7.19 Rooster sheave ....................... 07-52 7.20 Vehicular operation ....................07-55 7.21 “On tires” lifts ......................07-59 7.22 Unusual operating conditions ................. 07-60 RT75 Rough Terrain Crane...
  • Page 7 8 Transportation and storage ................... 08-1 8.1 Transportation ......................08-1 8.2 Storage ........................08-3 9 Specifications ........................09-1 9.1 Conversion tables ....................... 09-1 9.2 Average weight of materials ..................09-3 9.3 Torque ratings ......................09-5 9.4 Technical specifications ....................09-6 RT75 Rough Terrain Crane...
  • Page 10 Read and understand the data that comes with this crane. Help is available from the distributors of your ZOOMLION crane and from the ZOOMLION Mobile Crane Branch Company. This manual contains the instructions and data on the operation, maintenance, lubrication, and adjustments of the Rough Terrain Crane.
  • Page 14 = Power system, drive system, steering system, air intake system, exhaust system, cooling system, fuel supply system, chassis frame assy. and vehicle body system. 4. OUTRIGGERS = Outrigger beams, outrigger jacks, cylinders and outrigger floats. 02 - 1 RT75 Rough Terrain Crane...
  • Page 18 CRANE PERIODIC INSPECTION CHECKLIST This inspection checklist provides supplementary data to facilitate the correct operation and maintenance of the crane. 03 - 1 RT75 Rough Terrain Crane...
  • Page 19 MAINTENANCE LOG Item Adjusting Condition Date 03 - 2 RT75 Rough Terrain Crane...
  • Page 20 We reserve the right to make changes to this manual at any time, without obligation. This manual contains the instructions to move and operate the RT75 Crane in the field. Follow the operation and maintenance procedures to make sure that your machine operates at MAXIMUM EFFICIENCY.
  • Page 21 Speak with us if special data is necessary for the maintenance or operation of your RT75 Crane. Send your machine model and a serial number to make sure that you receive the correct data. If there is anything in this manual that is not clear or which you think is necessary, write to the address that follows: Rough Terrain Crane R &...
  • Page 24 Refers to a tip or hint in the operation instructions. Important Emphasizes the importance of the data in this manual. This symbol shows a step or procedure that is not approved and can cause a dangerous situation. 04 - 1 RT75 Rough Terrain Crane...

  • Page 25: Safety

     The operator must always think about the safety of all personnel in the area.  Only personnel who show that they can safely control a RT75 crane can operate the crane.  Comply with the requirements, that apply, as follows: ...
  • Page 26 Use the shortest boom possible.  If a load is off the ground or the crane is on, you must stay in the cab. Always use outriggers as the Load Ratings and Operator’s Manual tells.  04 - 3 RT75 Rough Terrain Crane...
  • Page 27 Know the weight of the load that you must lift.  Find the lift-radius, boom angle, and the rated lift limits of the crane.  Tell the signal person how to communicate with the operator. 04 - 4 RT75 Rough Terrain Crane...
  • Page 28 Rated capacity indicator (RCI)  wrap indicator. Operation overload prevention  Know the weight of the load.  Decrease radius at the start of the lift to let the load radius increase during lift. 04 - 5 RT75 Rough Terrain Crane...
  • Page 29 Slip and fall prevention  Make sure that you stop the crane before you move on and off the equipment. Do not jump.  Do not use the controls and the steering-wheel as hand holds. 04 - 6 RT75 Rough Terrain Crane...

  • Page 30: Safety

    Use a weak soap and water to clean the safety signs. Do not use solvent-based cleaners. Solvents can cause damage to the safety sign material. The graphics, on the pages that follow, give an example of each safety decal and its location. 04 - 7 RT75 Rough Terrain Crane...
  • Page 31 Left-hand side Right-hand side Figure 04 – 1 Overview of the Safety Signs on the Machine 04 - 8 RT75 Rough Terrain Crane...
  • Page 32 Figure 04 – 2 Danger – Crush Hazard Figure 04 – 3 Danger – Electrocution Hazard 04 - 9 RT75 Rough Terrain Crane...
  • Page 33 Figure 04 – 4 Hand Signals for Crane Operation 04 - 10 RT75 Rough Terrain Crane...
  • Page 34 Figure 04 – 5 Danger – Explosion / Burn Hazard Figure 04 – 6 Danger – Crush Hazard 04 - 11 RT75 Rough Terrain Crane...
  • Page 35 Figure 04 – 7 Danger – Burn Hazard Figure 04 – 8 Prohibited – No Thoroughfare Figure 04 – 9 Prohibited - No Access / Only Authorized Personnel Figure 04 – 10 CAUTION - Risk of Falling 04 - 12 RT75 Rough Terrain Crane...
  • Page 36 Figure 04 – 12 No Swing over the Rear with -3° Figure 04 – 13 Entanglement Hazard Keep all open flames and sparks away. Figure 04 – 14 Keep All Open Flames and Sparks Away – RH Only 04 - 13 RT75 Rough Terrain Crane...
  • Page 37 Figure 04 – 15 Be Careful in the Working Radius – RH Only Figure 04 – 16 No Walk – RH Only 04 - 14 RT75 Rough Terrain Crane...

  • Page 40: Operating Conditions

    If wind speed is greater than the permissible value of 45 ft/s (13.8 m/s), while the crane is in operation, do the tasks that follow: Stop the work (safely lower the load). Retract the boom. Correctly stow the boom. 05 - 1 RT75 Rough Terrain Crane...
  • Page 41 Strong gale chimney covers, etc. blown off) Trees uprooted, considerable damage 81 -0 - 92 -10 Storm 24.7 - 28.3 occurs G. Do not operate the crane until it is in proper operating condition. 05 - 2 RT75 Rough Terrain Crane...

  • Page 42: Pre-Departure Checks (To Job-Site)

    (12) Examine the air filter assembly. Clean the contamination from the bottom of the air filter. (13) Turn the ignition switch to stage “I” and examine the functions of the items that follow: 05 - 3 RT75 Rough Terrain Crane...
  • Page 43 (2) Make sure that each indicator operates. (3) Make sure that the generator operates. (4) Make sure that the park brake is not ON. (5) Move the transmission selection lever to the “F1” position and slowly increase the speed. 05 - 4 RT75 Rough Terrain Crane...
  • Page 44 10 PSI (0.069 MPa). If this occurs, stop the engine. Measure the oil level in the engine and check for leaks. If the oil level is at the correct level and there are no leaks, examine the lubricating system. Send it 05 - 5 RT75 Rough Terrain Crane...
  • Page 45 Do not add a large quantity of cold water to the engine if the engine coolant temperature is above the maximum limit. This can kill or blind you and cause damage to the engine. 05 - 6 RT75 Rough Terrain Crane...
  • Page 46  The steering wheel has a mechanical limit. Do not continue to turn the wheel when at the limit. Do not keep the wheel at the limit for long periods of time. 05 - 7 RT75 Rough Terrain Crane...
  • Page 47 Put the chocks on the wheels.  Examine the vehicle to find the part that caused the malfunction. Be careful of the road conditions while you move around the vehicle. 05 - 8 RT75 Rough Terrain Crane...
  • Page 48 ) Do not move a load above personnel. ) Do not move personnel on the load or other equipment used to lift. ) Do not use the crane for the tasks that follow: 05 - 9 RT75 Rough Terrain Crane...
  • Page 49 Lift a load that is not in balance. ) Do not try to lift a load that is buried or frozen on the ground. ) Do not extend / retract the boom with a suspended load. 05 - 10 RT75 Rough Terrain Crane...
  • Page 50 ) A noise sounds when the load is at 90% of the capacity of the crane. When this occurs, be careful as you continue to lift. ) If the crane was changed, do not operate the crane until approved personnel examine the changed part. 05 - 11 RT75 Rough Terrain Crane...
  • Page 51 The protective material between the edges of load and wire rope is missing.  The light level at the job-site goes below a safe work condition.  Equipment malfunction or damage to the crane that decreases the safe operation of the crane. 05 - 12 RT75 Rough Terrain Crane...
  • Page 52 Use proper coolant.  When the coolant temperature is extremely high, hot water will spray. Therefore, tighten or loosen the radiator cover using a piece of cloth. Otherwise, there is a risk of burn hazard. 05 - 13 RT75 Rough Terrain Crane...
  • Page 56 12 13 14 17 18 23 24 25 26 27 28 29 Figure 06 – 1 Upper Controls and Instruments This section mainly introduces the description and functions of the controls and instruments in details. RT75 Rough Terrain Crane 06 - 1...
  • Page 57 25. Hand / Foot Throttle Select Switch 26. Counterweight Cylinders Extend / Retract Switch 27. Left Counterweight Cylinder Extend / Retract Switch 28. Right Counterweight Cylinder Extend / Retract Switch 29. Hand Throttle 06 - 2 RT75 Rough Terrain Crane...
  • Page 58 SWITCH (21) (See Figure 06 – 1). RIGHT FRONT OUTRIGGER SWITCH – Used to select outrigger cylinder (jack or beam) to be extended / retracted with OUTRIGGER EXTEND / RETRACT MASTER SWITCH (21) (See Figure 06 – 1). RT75 Rough Terrain Crane 06 - 3...
  • Page 59 12. CAB HEATER POWER SWITCH – Used to turn on the cab heater. The controls to adjust heat are on the AIR CONDITIONER CONTROL PANEL (5) (See Figure 06 – 06 - 4 RT75 Rough Terrain Crane...
  • Page 60 LEFT COUNTERWEIGHT CYLINDER EXTEND / RETRACT SWITCH – Push up to retract the left counterweight cylinder, down to extend. RIGHT COUNTERWEIGHT CYLINDER EXTEND / RETRACT SWITCH – Push up to retract the right counterweight cylinder, down to extend. 06 - 5 RT75 Rough Terrain Crane...
  • Page 61 Examine and clean. according to the working conditions Electromagnetic Make sure that it operates smoothly Every quarter clutch and is clean. Make sure that the connector is set in Connector Every month place. 06 - 6 RT75 Rough Terrain Crane...
  • Page 62 – Turn the A/C FAN SPEED / MASTER SWITCH (1) counter-clockwise between 3 fan speed (HI, MID, LOW) to get the correct temperature. Do not disassemble an A/C system that is in the Warranty Period without consent from the A/C manufacturer. 06 - 7 RT75 Rough Terrain Crane...
  • Page 63 Keep the surface of the condenser clean. When you clean the condenser, do not use steam. Before you disassemble the A/C system, correctly remove the refrigerant. Do not disassemble the A/C system in an area with high humidity. 06 - 8 RT75 Rough Terrain Crane...
  • Page 64 Prefabricated key 5 (radio) / Repeat Play (Playback) Button Prefabricated key 6 (Broadcasting) / next folder selection (Playback) Set the ignition switch to "I", when you use the CD player with the engine in the OFF position. 06 - 9 RT75 Rough Terrain Crane...

  • Page 65: Controls And Instruments

    Free swing – Push to operate the FREE SWING. Push again to release this function. (Located on left side of joystick) Note Only when the operator’s seat is occupied and the icon on the display lights up, the joysticks can initiate various movements. 06 - 10 RT75 Rough Terrain Crane...
  • Page 66 You can adjust the steering wheel height and angle when you push the pedal at the bottom of the steering wheel. DO NOT adjust the steering wheel while you move the crane. This can kill you. Lock the steering wheel after adjustment. RT75 Rough Terrain Crane 06 - 11...
  • Page 67 Pull in the direction of the operator for high beam. Push in the direction of the dash for low beam. 06 - 12 RT75 Rough Terrain Crane...
  • Page 68 Move the joystick rearward to spool-up main winch rope. Move the joystick left to lift the boom. Move the joystick right to lower the boom. Horn – Push and hold-in to make a sound. (Located on left side of joystick). 06 - 13 RT75 Rough Terrain Crane...
  • Page 69 Figure 06 – 10 Right Joystick (Boom Hoist / Main Winch Control) Note Only when the operator’s seat is occupied and the icon on the display lights up, the joysticks can initiate various movements. 06 - 14 RT75 Rough Terrain Crane...
  • Page 70 The Work Mode Screen (when the parking brake is ON) or Travel Mode Screen (when the parking brake is OFF) appears on the monitor. See Figures 06 – 13 and 06 – 14 respectively. 06 - 15 RT75 Rough Terrain Crane...
  • Page 71 Under Travel Mode Screen, the virtual gauges such as odometer, tachometer, fuel gauge and engine coolant temperature gauge will be displayed on the screen. See Table 06 – 2. Under any screen, the function keys at the bottom are available for switching between various screens. 06 - 16 RT75 Rough Terrain Crane...
  • Page 72 Do not move the crane when the indicator for the service or parking brake system illuminate. Do not move the crane when the engine oil pressure low indicator illuminates. Stop the engine to prevent damage to the engine. 06 - 17 RT75 Rough Terrain Crane...
  • Page 73 Battery charging system fault. INDICATOR Illuminates: CORNER MARKER LIGHTS INDICATOR The corner marker lights are ON. Illuminates: LOW BEAM INDICATOR Low beam lights are ON. Illuminates: HIGH BEAM INDICATOR High beam lights are ON. 06 - 18 RT75 Rough Terrain Crane...
  • Page 74 DO NOT move the crane. Illuminates: CLUTCH The clutch is disengaged and the DISENGAGING service brake indicator illuminates when INDICATOR the service brake is applied. Illuminates: PTO INDICATOR Shows that the PTO is engaged. RT75 Rough Terrain Crane 06 - 19...
  • Page 75 Shows that the swing lock is NOT INDICATOR engaged. Illuminates: NEUTRAL 0 Shows that the transmission is in the POSITION INDICATOR "N0" position. Illuminates: NEUTRAL 1 Shows that the transmission is in the "N POSITION INDICATOR 1" position. 06 - 20 RT75 Rough Terrain Crane...
  • Page 76 INDICATOR properly to start the engine. Shows that the glow plugs are hot enough, the light goes out. Illuminates: WATER IN FUEL INDICATOR Shows that the fuel contains water. RT75 Rough Terrain Crane 06 - 21...
  • Page 77 Press the key “BACK” to return the Travel Mode Screen or Work Mode Screen. Press the key “MENU" to enter the Main Menu Screen. Press the key “HOME” to return to the Travel Mode Screen. Figure 06 – 15 Vehicle Status 06 - 22 RT75 Rough Terrain Crane...
  • Page 78 Main Menu Screen. Press the relevant function keys to move the cursor left and right to select the items as follows: Monitoring, Real-time warning, Parameter settings, Maintenance, 简体中文(Chinese), Information and Password etc. And then press the key “ENTER” to enter the required screen. 06 - 23 RT75 Rough Terrain Crane...
  • Page 79 “简体中文” (Chinese) item, see Figure 06 – 19, and press “ENTER”. After this operating, monitor displays all information in Chinese mode, see Figure 06 – 18. 06 - 24 RT75 Rough Terrain Crane...
  • Page 80 Travel mode, Work mode, Vehicle status and Bus status. See Figure 06 – 20. Press the key “BACK” or “MENU” to return to the Main Menu Screen. Press the key “HOME" to enter the Travel Mode Screen. RT75 Rough Terrain Crane 06 - 25...
  • Page 81 “ENTER” to enter the Bus Status Screen. See Figure 06 – 21. If the communication between the controllers fails, it means that the network signal between the controllers is disconnected. Figure 06 – 21 Bus Status 06 - 26 RT75 Rough Terrain Crane...
  • Page 82 “ENTER” to enter the Engine Warning Screen. See Figure 06 – 23. (3) Transmission warning: move the cursor to select the icon “Transmission warning” and press the key “ENTER” to enter the Transmission Warning Screen. See Figure 06 – RT75 Rough Terrain Crane 06 - 27...
  • Page 83 Figure 06 – 23 Engine Warning Figure 06 – 24 Transmission Warning 06 - 28 RT75 Rough Terrain Crane...
  • Page 84 Brightness settings: press the key “ENTER” to enter the Brightness Settings Screen. Press the function keys “+” and “-” to adjust the brightness. See Figure 06 – 26. Figure 06 – 26 Brightness Setting RT75 Rough Terrain Crane 06 - 29...
  • Page 85 Press the function key “DIAG” and press the keys “PgUp” and “PgDn” to increase and decrease the engine idle speed by 50 rpm. The engine idle speed varies within 650 – 1200 rpm. 06 - 30 RT75 Rough Terrain Crane...
  • Page 86 “ENTER” to enter the Error Diagnostic Screen. See Figure 06 – 29 and Figure 06 – 30. There are 2 pages of the error diagnostic information. Press the keys “PgUp” and “PgDn” to consult the diagnostic information. Figure 06 – 29 Error Diagnostic 1 RT75 Rough Terrain Crane 06 - 31...
  • Page 87 Figure 06 – 31 Information (1) System history warning: move the cursor to select the icon “System history warning” and press the key “ENTER” to enter the System History Warning Screen to consult the 06 - 32 RT75 Rough Terrain Crane...
  • Page 88 (4) About: move the cursor to select the icon “About” and press the key “ENTER” to enter the About Screen to consult the basic information about the crane. See Figure 06 – Figure 06 – 32 System History Warning Figure 06 – 33 Engine History Warning RT75 Rough Terrain Crane 06 - 33...
  • Page 89 Figure 06 – 34 Transmission History Warning Figure 06 – 35 About 06 - 34 RT75 Rough Terrain Crane...
  • Page 90 All screens (except the Travel Mode Screen and Work Mode Screen) have a function key “HOME”. You can press the key “HOME” to return to the Travel Mode Screen. 6.4 Vehicle Camera MENU V1/V2 Figure 6-37 Camera Display RT75 Rough Terrain Crane 06 - 35...
  • Page 91 4. MENU button Enter the brightness , contrast or color adjusting option 5. △ button Increase the brightness, contrast or adjust the color 6. ▽ button Decrease the brightness, contrast or adjust the color 06 - 36 RT75 Rough Terrain Crane...

  • Page 94: Safety Equipment

    (via joystick and telescoping pedal). Caution When driving the crane, the joysticks and boom extend/retract pedal remain active. Crane operations can occur if either joysticks or pedal are used unintentionally. RT75 Rough Terrain Crane 07 - 1...

  • Page 95: Starting The Engine

    If you operate the crane in very low temperature areas, the engine can be hard to start. The optional flame starting device is very important for the normal engine start. Please speak with the Zoomlion Service Department if you select a flame starting device for your crane.

  • Page 96: Move And Park The Crane

    (5) Do not turn the ignition switch to “0” at this time. Stop the engine and keep electrical power applied to the engine for 30 seconds to let the engine data transfer to the ECU. Turn the ignition switch to the “0” position. 07 - 3 RT75 Rough Terrain Crane...

  • Page 97: Economical Driving

    If the tire pressure is too low, the tires wear incorrectly and they increase the load on the engine.  Keep the operation of the air conditioner system at a minimum.  Always use the correct type of fuel and engine lubricants. `  Keep to the preventive maintenance schedule. 07 - 4 RT75 Rough Terrain Crane...

  • Page 98: Steering Operation

     Decrease the speed of the vehicle and move down one transmission gear if you have a sharp turn. 07 - 5 RT75 Rough Terrain Crane...

  • Page 99: Braking Operation

    If the tire blows out suddenly during the move, do not push the brake pedal immediately. Hold the steering-wheel tightly with two hands, decrease the speed, and move the crane to a safe area. 07 - 6 RT75 Rough Terrain Crane...

  • Page 100: Transmission Operation

    DO NOT stop the engine when the transmission oil temperature is too high. Caution DO NOT move the crane when the transmission oil pressure is lower than 240 psi. Warning DO NOT move the crane with the shift lever in the “N” position. 07 - 7 RT75 Rough Terrain Crane...

  • Page 101: Towing

    To prepare the crane to be towed, do the items that follow:  Operate the engine at idle (keeps the transmission oils in motion).  Disconnect the front axle.  Disconnect the rear axle. 07 - 8 RT75 Rough Terrain Crane...

  • Page 102: Pto Operation

    (b) Turn the handle of the shutoff gate valve on the hydraulic oil tank in the direction shown. Refer to Figure 07 – 1. Hydraulic oil tank Shutoff gate valve Figure 07 – 1 Hydraulic Oil Tank 07 - 9 RT75 Rough Terrain Crane...
  • Page 103 Run the engine for 15 min to 20 min in winter before lift a load. (3) Disengage the PTO. Push down the PTO handle to disengage the PTO. Refer to Figure 07 – 3. Figure 07 – 3 Disengage PTO Handle 07 - 10 RT75 Rough Terrain Crane...

  • Page 104: Outrigger Operation

    Make sure that you do all of the work on level ground that is hard. The ground must hold more than the load bearing capacity. Use material (such as wooden timbers) below the outrigger floats if the work area is soft or not flat. 07 - 11 RT75 Rough Terrain Crane...
  • Page 105 (b) Push and hold 2 front (or rear) outrigger switches to the “JACK” position. Push and hold outrigger extend / retract master switch to the “RETRACT” position at the same time. After the 2 front (or rear) outrigger jacks fully retract, release the master 07 - 12 RT75 Rough Terrain Crane...
  • Page 106   When the crane is on a level area, examine the bubble level indicator. The bubble shows in the middle of the indicator. If not, adjust the nuts below the indicator. 07 - 13 RT75 Rough Terrain Crane...

  • Page 107: Hoist Operation

    Use the below figure to find out the rated lifting capacity if the outrigger beams are fully extended and the main boom is over side or over rear. Figure 07 – 5 Rated Load Caution Use working conditions to find the rated lifting capacity. 07 - 14 RT75 Rough Terrain Crane...
  • Page 108 When you increase the boom length and height, you must increase the length of the hoist rope. You can change the line parts to get a longer rope. You must install the anti-two block weight before you change the parts. 07 - 15 RT75 Rough Terrain Crane...
  • Page 109 (b) Let the boom automatically align the end of the boom above the load. (c) Push FREE SWING button again to disengage free swing. Dash indicator will go out. 07 - 16 RT75 Rough Terrain Crane...
  • Page 110 Neutral position: stop Move the Move the joystick joystick backward: forward: spool up the reel off the main winch main winch Activate the main winch mechanism Figure 07 – 9 Main Winch - Right Joystick 07 - 17 RT75 Rough Terrain Crane...
  • Page 111 Pull it to the rear to spool-up to move the load up. Note Only when the operator’s seat is occupied and the icon on the display lights up,can the joysticks initiate various movement. Figure 07 – 10 Auxiliary Winch - Left Joystick 07 - 18 RT75 Rough Terrain Crane...
  • Page 112 If necessary, this switch-off can be bypassed by the bypass key switch in cab. When the maintenance personnel repair or check out the functions on the crane, they can turn the bypass key switch. Carry out bypassed movements with maximum care and minimum speed. 07 - 19 RT75 Rough Terrain Crane...
  • Page 113   Do not try to lift a load that weighs more than the lift capacity of the crane.   Do not use the crane to lift personnel. 07 - 20 RT75 Rough Terrain Crane...
  • Page 114 Remove the pins on the hook block and boom head to let the wire rope unreeve. Figure 07 – 12 Hook Assembly Remove the anti-two block weight. Figure 07 – 13 Anti-Two Block Weight 07 - 21 RT75 Rough Terrain Crane...
  • Page 115 Figure 07 – 15 Line Part Change Note You must change the location of the anti-two block weight if you have a different number of wire-rope wraps. Figure 07 – 16 Even and Odd Line Parts 07 - 22 RT75 Rough Terrain Crane...
  • Page 116 Install the socket and wire-rope clamp. Refer to Figure 07 - 17. Do not install wire rope clamp on the live side of the wire rope. Wedge and Rope clamp socket assembly Figure 07 – 17 Rope Clamp 07 - 23 RT75 Rough Terrain Crane...

  • Page 117: Main Boom Extend / Retract Operation

    E. The length detector (in the main boom, on the left side) measures the boom length and transmits the data to the rated capacity indicator. The boom length data is calculated then the boom configuration shows on the screen. 07 - 24 RT75 Rough Terrain Crane...
  • Page 118 When you extend the boom and the hook block touches the anti-two block weight, the items below occur: A warning noise sounds A warning light illuminates. When the warning occurs, the function of the items below, stop: 07 - 28 RT75 Rough Terrain Crane...
  • Page 119  Do not use the bypass key switch when you do usual crane operations.  An extended boom can retract a short distance if the boom is extended for a 07 - 29 RT75 Rough Terrain Crane...
  • Page 120  Make sure that the hydraulic oil temperature does not increase too high.  Extend the boom to the correct length.  Do not extend / retract the boom with a suspended load. 07 - 30 RT75 Rough Terrain Crane...

  • Page 121: Boom Derricking Operation

    E. The speed of the derricking up / down movements change by:  Joystick - how far you move the joystick left or right  Throttle pedal - increase or decrease the engine RPMs. Figure 07 – 23 Derricking Operation 07 - 31 RT75 Rough Terrain Crane...
  • Page 122 You can cause a dangerous condition if you try to lift a heavy load with the boom at a low angle. Make sure that you follow the Load Rating Chart. 07 - 32 RT75 Rough Terrain Crane...

  • Page 123: Swing Operation

    Make sure that work-site personnel and equipment are clear from the area of travel. Send out a short warning sound (horn) before you move the crane. The aft end of the crane extends out 4400 mm from the superstructure center point. 07 - 33 RT75 Rough Terrain Crane...
  • Page 124 The speed of the swing movement changes by:  Joystick - how far you move the joystick left or right.  Throttle pedal - increase or decrease the engine RPMs. Figure 07 – 27 Left Joystick 07 - 34 RT75 Rough Terrain Crane...
  • Page 125 UNLOCK position. When the crane movements stop, lock the superstructure and ensure the swing lock indicator illuminates. Danger Before you lift and move a load, make sure that the wind and weather conditions are safe to operate. 07 - 35 RT75 Rough Terrain Crane...

  • Page 126: Multifunctioning

    Monitor the area as you operate. Do not move a load unless the conditions are safe. Warning You can only use crane movements that operate at the same time when there is no load (or when you lift the load away from the ground). 07 - 36 RT75 Rough Terrain Crane...
  • Page 127 To move the main winch and the auxiliary winch at the same time, move (push and/or pull) the left and right joysticks. The main hook and auxiliary hook move up and/or down. Refer to Figure 07 – 30. Figure 07 – 30 Main Winch + Auxiliary Winch 07 - 37 RT75 Rough Terrain Crane...
  • Page 128 To do this, push or pull the left joystick and move the right joystick left or right. Refer to Figure 07 – 32. Figure 07 – 32 Derrick + Auxiliary Winch 07 - 38 RT75 Rough Terrain Crane...
  • Page 129 When you lift the load, it moves. Be careful not to touch the outriggers with the load. Monitor the area as you move the load. The outriggers move in the path of travel. Do not move a load unless the conditions are safe. 07 - 39 RT75 Rough Terrain Crane...
  • Page 130 (3) Pull aft and to the right (4:30 clock position) - the boom moves down and the main hook moves up. (4) Pull aft and to the left (7:30 clock position) - the boom moves up and the main hook moves down. Figure 07 – 35 Derrick + Main Winch 07 - 40 RT75 Rough Terrain Crane...
  • Page 131 (4) Pull aft and to the left (7:30 clock position) - superstructure swings to the left and the auxiliary hook moves up. Figure 07 – 36 Swing + Auxiliary Winch 07 - 41 RT75 Rough Terrain Crane...
  • Page 132 To do this, push the left pedal and move the left joystick left or right. Refer to Figure 07 – 37. Figure 07 – 37 Swing + Boom Extend or Retract 07 - 42 RT75 Rough Terrain Crane...

  • Page 133: Jib Operation

    (2) Extend the outriggers and make the crane level. Figure 07 – 39 Bubble Level Indicator (3) Retract the boom fully. (4) Move the boom to the front of the crane and position it to -3° . 07 - 43 RT75 Rough Terrain Crane...
  • Page 134 (5) Extend the intermediate bracket and remove the pin (1). Figure 07 – 40 Pin (1) Removal (6) Move front of the jib away from the main boom (jib pivots at pin 2). Pin 2 Figure 07 – 41 Pin (2) Location 07 - 44 RT75 Rough Terrain Crane...
  • Page 135 (8) Remove the pin 2. Figure 07 – 43 Pin (2) Removal (9) Move the jib (pivots on pin 3 and pin 4) to the front of the main boom. Figure 07 – 44 Move the Jib 07 - 45 RT75 Rough Terrain Crane...
  • Page 136 (12) Pull out the section 2, stop when it touches the limit stop. Align the holes and install the pin (7) and the retaining clip. Pin 7 Figure 07 – 47 Pin (7) Installation 07 - 46 RT75 Rough Terrain Crane...
  • Page 137 B for the 20° position or point C for the 40° position. (6) Pay out the hoist rope and derrick the boom up slowly till pin at point B or point C touches pin A. 07 - 47 RT75 Rough Terrain Crane...
  • Page 138 Figure 07 – 48 Figure 07 – 48 Offset Positions 07 - 48 RT75 Rough Terrain Crane...
  • Page 139 Fully retract the boom. Move the jib to the front of the crane and set the boom to the -3° position. You must use the correct work stands (ladders, stairs, etc.) when you assemble or disassemble the jib. 07 - 49 RT75 Rough Terrain Crane...
  • Page 140 When you remove the auxiliary hook and put it in the stow position, obey the hand signals from the signal personnel. Refer to Figure 07 – 52. Figure 07 – 52 Signal Personnel 07 - 50 RT75 Rough Terrain Crane...

  • Page 141: Rooster Sheave

    (b) Move the jib over front and over side and set the boom to the -3° position. (c) Remove the securing pin and move the bracket to the front of the boom. Align the connection points. Install the connecting pin. Refer to Figure 07 – 07 - 51 RT75 Rough Terrain Crane...
  • Page 142 When you remove the auxiliary hook and put it in the stow position, obey the hand signals from the signal personnel. Refer to Figure 07 – 56. Figure 07 – 56 Hand Signal - Stow Position 07 - 52 RT75 Rough Terrain Crane...

  • Page 143: Vehicular Operation

    You can cause damage to the transmission. (h) Make sure that the transmission oil pressure (250 to 300 psi (17.2 to 20.7 bar)) and oil temperature 82.2° C to 93.3° C are in the correct range. 07 - 53 RT75 Rough Terrain Crane...
  • Page 144 If it does not, you must examine the crane for a different malfunction. DO NOT stop the engine at this time. Caution Do not move the gear selector between forward and reverse when the crane is in motion. 07 - 54 RT75 Rough Terrain Crane...
  • Page 145 (h) Do not side move the crane on a slope that is more than 15° .  The engine and transmission lubricant in the tanks moves to one side. You can cause damage to the engine or transmission.  You can tip over. 07 - 55 RT75 Rough Terrain Crane...
  • Page 146 5° . The boom must in the front, at 0° or less than 0° . Caution Refer to the ON TIRES LIFTS procedure when you move a load. 07 - 56 RT75 Rough Terrain Crane...

  • Page 147: On Tires" Lifts

    When you move a load in the “Creep” mode, the maximum speed is 1.6 km/h.   Stop and wait for 30 min after you move 60 ft. (18 m) to prevent over-heating the tires. 07 - 57 RT75 Rough Terrain Crane...

  • Page 148: Unusual Operating Conditions

    (2) Make sure that the engine coolant is at the correct level. Do not try to add water in the coolant if the engine is hot. Do not add salt water to the coolant system. 07 - 58 RT75 Rough Terrain Crane...
  • Page 149 (1) Examine the air filter frequently. Make sure that the air to the filter is not blocked. (2) Examine the engine temperature gauge frequently. The engine can get too hot. G. Storms If there is a bad weather condition, do the items that follow: 07 - 59 RT75 Rough Terrain Crane...
  • Page 150 (2) Stop the crane and go into a shelter if conditions are dangerous because of lightning. (3) If lightning hits the crane, make sure that it is safe to operate before you try to start it. (4) Always be aware for a quick change in the weather. 07 - 60 RT75 Rough Terrain Crane...

  • Page 151: Counterweight Operation

    Assembly (with counterweight on the chassis front) (1) Rotate superstructure with boom over the rear until the counterweight cylinder is aligned with Point A in the Figure 07 – 58. Figure 07 – 58 Counterweight plate 07 - 61 RT75 Rough Terrain Crane...
  • Page 152 For disassembly, perform Assembly procedure in reverse order. When lowering counterweight onto chassis front, ensure holes in underside of counterweight line up and nest into the counterweight holder pins on the front of the chassis. 07 - 62 RT75 Rough Terrain Crane...

  • Page 156: Transportation

    (b) The positions to lift the crane are in the Figure 08 – 1. Follow applicable rules while you lift. Figure 08 – 1 Crane Lift Points Warning Before you lift, make sure that the slings have sufficient strength to hold the crane. 08 - 1 RT75 Rough Terrain Crane...
  • Page 157 To prevent the crane from movements, make sure that the tires are “chocked” and attach the chains. (g) Unload the Crane. To unload the crane, do the “Load the Crane” task in the opposite sequence. 08 - 2 RT75 Rough Terrain Crane...

  • Page 158: Storage

    Keep the crane clean and do the usual maintenance.  Replace aged seal components.  Do a general inspection of the engine to see if you must replace the coolant, diesel oil, and air / fuel filters. 08 - 3 RT75 Rough Terrain Crane...

  • Page 162: Conversion Tables

    .4219 10.716 59/64 .9219 23.415 7/16 .4375 11.12 15/16 .9375 23.812 29/64 .4531 11.509 61/64 .9531 24.209 15/32 .4688 11.906 31/32 .9688 24.606 31/64 .4844 12.303 63/64 .9844 25.003 .5000 12.700 1.0000 25.400 09 - 1 RT75 Rough Terrain Crane...
  • Page 163 Table 09 – 2 Liquid Weights and Measures Table 09 – 3 Metric Equivalents 09 - 2 RT75 Rough Terrain Crane...

  • Page 164: Average Weight Of Materials

    1621.4 - 2075.392 Basalt, granite, gneiss 1556.544 Portland cement 3177.944 Limestone, marble, quartz 1540.33 Portland cement, loose 1524.116 Sandstone 1329.548 Lime, gypsum, loose 859.342 - 1037.696 Shale 1491.688 Mortar, lime, set 1670.042 Greenstone, hornblende 1734.898 09 - 3 RT75 Rough Terrain Crane...
  • Page 165 680.988 - 875.556 Paper 940.412 Pine, Oregon 518.848 Glass, common 2626.668 Pine, southern 616.132 - 680.988 Petroleum 729.63 -875.556 Spruce 453.992 Coal, anthracite 762.058 -875.556 Black walnut 599.918 Coal, bituminous 648.5-875.556 Coal, coke 372.922-518.848 09 - 4 RT75 Rough Terrain Crane...
  • Page 166 The friction factor is 0.7 times the yield point value. The above values are suitable for the bolts lubricated. For the bolts without lubrication, the tightening torque is 133% of the corresponding one shown in the above table. 09 - 5 RT75 Rough Terrain Crane...

  • Page 167: Technical Specifications

    9.4 TECHNICAL SPECIFICATIONS A. RT75 rough terrain crane has the qualities below:  Wide Tread  Short Wheelbase  Very Stable  Small Turn Radius  360° Superstructure Movement B. It can do “On Tires” lifts in areas where there is a small area of space for movement and can pick-and-carry loads.
  • Page 168 (5) Overall dimensions: 586ft × 134ft × 151ft (14897 mm × 3400 mm × 3840 mm )(Refer to Figure 09 – 1) (6) Deadweight: 58.5ton (53.1 t) (7) Ability to pick-and-carry loads (8) Rough terrain travel performance 09 - 7 RT75 Rough Terrain Crane...
  • Page 169 Figure 09 – 1 Overall View – RT75 Rough Terrain Crane 09 - 8 RT75 Rough Terrain Crane...
  • Page 170 Complete vehicle mass 53100 61068 Mass Front axle load 27700 55997 Rear axle load 25400 Max. travel speed 22/22 (Forwards / backwards) km/h 36/36 Wheelbase 4150 Traveling Treads (Front / rear) 2632 Max. gradeability 09 - 9 RT75 Rough Terrain Crane...
  • Page 171 (b) The hydraulic motor drives the winch with a planetary reducer. When the winch turns (rotates), the wire-rope “reels off” or “spools on” to the winch. (2) Wire-rope (a) Torsion resistant hoist rope Max. hoist rope strength: 20233 lbf (90 kN) 09 - 10 RT75 Rough Terrain Crane...
  • Page 172 (1) Oil pump Two dual gear pumps One supplies oil for the below uses: Boom Extend / Retract Derrick and Hoist The another supplies oil for the below uses: Outriggers Swing Mechanism Steering System 09 - 11 RT75 Rough Terrain Crane...
  • Page 173 (3) The switches found on the dash control the outriggers movements. (1) There is one cab on the RT75 rough terrain crane. You can use it as the cab for the operator and for the driver. The cab attaches on the left side of the crane and has a seat for the operator.
  • Page 174 (3) Outrigger boxes are directly welded onto the crane chassis. (4) You can fully and intermediately extend and fully retract the outriggers for crane 09 - 13 RT75 Rough Terrain Crane...
  • Page 175 Outrigger spread (L):24.2 ft (7380 mm ) Outrigger spread (W): Fully extend: 24 ft (7300 mm) Intermediately extend: 16.7 ft (5100 mm) Fully retracted: 9.5 ft (2900 mm) 09 - 14 RT75 Rough Terrain Crane...
  • Page 176 Steering system (1) Full hydraulic power steering gear (2) The steering-wheel controls the cylinder to turn the wheels. (3) Four steering modes: 2-wheel steer – front wheel steer 2-wheel steer – rear wheel steer 09 - 15 RT75 Rough Terrain Crane...
  • Page 177 SAFETY DEVICES Rated Capacity Indicator (RCI) Rotating Beacon and Horn Anti-Two Block Devices Wrap Balance Valve Hydraulic Lock Hydraulic Safety Valve Swing Brake Swing Lockout Device Boom Angle Indicator Outrigger Beam Retaining Pin 09 - 16 RT75 Rough Terrain Crane...
  • Page 178  Emergency Stop Button  Winch Speed Sensor 09 - 17 RT75 Rough Terrain Crane...

Table of Contents