Manitowoc Grove RT770E Operator's Manual
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Manitowoc Grove RT770E Operator's Manual

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Grove RT770E
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  • Page 1 Grove RT770E Operator Manual...
  • Page 3 DANGER An untrained operator subjects himself and others to death or serious injury. Do not operate this crane unless: Manitowoc is not • You are trained in the safe operation of this crane. responsible for qualifying personnel.
  • Page 4 CALIFORNIA PROPOSITION 65 WARNING Diesel engine exhaust and some of its constituents are known to the State of California to cause cancer, birth defects, and other reproductive harm. CALIFORNIA PROPOSITION 65 WARNING Battery posts, terminals, and related accessories contain chemical lead and lead compounds, chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.

  • Page 5: Table Of Contents

    RT770E TABLE OF CONTENTS TABLE OF CONTENTS SECTION 1 ........Introduction General .
  • Page 6 TABLE OF CONTENTS RT770E Special Operating Conditions and Equipment ......2-25 Earthing the Crane..........2-25 Personnel Handling .
  • Page 7 RT770E TABLE OF CONTENTS Right Side Window Latch ..........3-5 Overhead Control Panel .
  • Page 8 TABLE OF CONTENTS RT770E Swing Brake Control Switch ......... 3-15 Axle Differential Lock Control Switch (Optional) .
  • Page 9 RT770E TABLE OF CONTENTS Transporting the Crane ..........3-27 Crane Travel Operation .
  • Page 10 TABLE OF CONTENTS RT770E Hydraulic ............5-34 SECTION 6.

  • Page 11: Section 1

    If you are the new owner of a Grove crane, please register it provides motive power through a six speed forward and with Manitowoc Crane Care so we have the ability to contact reverse transmission. Hydraulic, double box, sliding beam you if the need arises.

  • Page 12: Vibration Level Test Results

    89/392/EEC Community Legislation on Machinery per Whenever contacting your local Grove distributor or standard ISO 2631/1 - Evaluation of Human Exposure to Manitowoc Crane Care have the serial number of the crane Work Body Vibration, ISO 5349 - Guidelines for the available.
  • Page 13 RT770E OPERATOR MANUAL INTRODUCTION 7671-1 FIGURE 1-2 7671-2 FIGURE 1-2 continued Item Description Item Description Air Conditioning Components Boom Nose Sheaves Windshield Washer Fluid Container Boom Hoist Access Platform (Fixed Counterweight Units Only) Work Lights Main Hoist Grove Published 04-04-2017, Control # 446-09...
  • Page 14 INTRODUCTION RT770E OPERATOR MANUAL Item Description Item Description Auxiliary Hoist Hydraulic Valves and Swing Motor Cover Counterweight Swingaway Extension Muffler Auxiliary Boom Nose Outrigger Jack Cylinder Boom Extension Battery Outrigger Floats Lift Cylinder Front Axle Item Description Hydraulic Fluid Tank Fuel Tank (Tier 4 engines require Low Sulphur Fuel only!) Rear Axle...

  • Page 15: List Of Specifications

    RT770E OPERATOR MANUAL INTRODUCTION LIST OF SPECIFICATIONS Engine Cummins QSB 6.7 General Type ... . . 4 cycle, Diesel, Turbocharged Model ......RT770E Number of Cylinders .

  • Page 16: Hoists

    INTRODUCTION RT770E OPERATOR MANUAL Pump #3 Max. Single Line Speed ..153 m/min (500 fpm) Type ....... . Gear Sections .
  • Page 17 RT770E OPERATOR MANUAL INTRODUCTION Table 1-1Axle Weight Distribution Table CG From Rear Weight Front Axle Rear Axle Description Axle cm (in) kg (lb) kg (lb) kg (lb) Basic Unit Maximum Axle Loads Allowed 23360 (51500) 23360 (51500) Maximum Tire Loads Allowed 53600 (24312) 53600 (24312) Standard Carrier 4 x 4, w/O/R Beams, plus...
  • Page 18 INTRODUCTION RT770E OPERATOR MANUAL CG From Rear Weight Front Axle Rear Axle Description Axle cm (in) kg (lb) kg (lb) kg (lb) Sub: Removable Ctwt System 229.13 (90.21) 375 (827) 211 (466) 164 (361) Sub: Add’l Hoist Access Platform Weight w/ -213.82 (-84.18) 20 (44) -10(-23)

  • Page 19: Section 2

    RT770E OPERATOR MANUAL SAFETY INFORMATION SECTION 2 SAFETY INFORMATION SECTION CONTENTS Safety Messages......2-1 Maintenance.

  • Page 20: General

    ACCIDENTS Following any accident or damage to equipment, the CAUTION Manitowoc dealer must be immediately advised of the incident and consulted on necessary inspections and Identifies hazards that could result in minor or moderate repairs. Should the dealer not be immediately available, injury if the message is ignored.

  • Page 21: Operator Information

    RT770E OPERATOR MANUAL SAFETY INFORMATION OPERATOR INFORMATION with crane operations and the hazards involved. Such a person shall meet the operator qualifications specified in You must read and understand this Operator Manual and Occupational Safety and Health Administration (OSHA) the Load Chart before operating your new crane. You must Regulations (United States Federal Law), in ASME B30.5 also view and understand the supplied safety video.

  • Page 22: Operational Aids

    (HCAS), a safe load indicator (SLI), or Rated Capacity Limiter is inoperative or malfunctioning, an EKS5; Manitowoc refers to these systems as a rated the designated person responsible for supervising the capacity limiter (RCL) throughout its Operator and Service lifting operations shall establish procedures for Manuals.

  • Page 23: Anti-Two-Blocking Device

    RT770E OPERATOR MANUAL SAFETY INFORMATION Anti-Two-Blocking Device the boom is lowered. Keep load handling devices a minimum of 107 cm (42 in) below the boom nose at all times. This crane should have a functional Anti-Two-Block and Two-blocking can be prevented. Operator awareness of the Control Lock-Out System.

  • Page 24: Crane Stability/Structural Strength

    SAFETY INFORMATION RT770E OPERATOR MANUAL CRANE STABILITY/STRUCTURAL slightly off the ground and recheck the stability before proceeding with the lift. Determine the weight of the load STRENGTH before you attempt the lift. To avoid death or serious injury, ensure that the crane is on a Unless lifting within On Rubber capacities, outrigger beams firm surface with load and crane’s configuration within and jack cylinders (plus center front stabilizer, if equipped)

  • Page 25: Wind Forces

    Do not allow unnecessary personnel in the vicinity of the crane while operating. Wind forces can exert extreme dynamic loads. Manitowoc recommends that a lift not be made if the wind can cause a WIND FORCES loss of control in handling the load.
  • Page 26 SAFETY INFORMATION RT770E OPERATOR MANUAL This 3-second wind gust is assumed to act on the entire NOTE: This condition is limited to operation with the main crane and the load. The wind effect on the load can be boom on fully extended outriggers only. conservatively estimated as: c) If V(z) is >...
  • Page 27 RT770E OPERATOR MANUAL SAFETY INFORMATION Simplified Method to Determine Maximum Permissible Wind Speed Determine 3-Second Gust 0.14 V(z) = [(z/10) + 0.4]v [m/s] Wind Speed at boom tip, 0.14 V(z) = [(z/33) + 0.4]v [mph] V(z) 13.4 m/s < V(z) < 20.1 m/s V(z) >...
  • Page 28 Use tag lines when the wind gust speed is above 13.4 m/s (30 mph) to help control the movement of the Metric, with Z [m] and V [m/s] load. Manitowoc recommends that a lift not be made if 0.14 V(z) = [(Z/10) + 0.4] x V...
  • Page 29 RT770E OPERATOR MANUAL SAFETY INFORMATION Calculation of Projected Wind Area (Ap) Wind Wind = 8 m = 24 m 25 ft 25 ft Wind Wind 10 ft 3 ft = 75 ft = 250 ft 10 ft 3 ft 8384-1 FIGURE 2-2 Determining Wind Drag Coefficient (Cd) If the exact Wind Drag Coefficient of a shape is not known,...
  • Page 30 SAFETY INFORMATION RT770E OPERATOR MANUAL Table 2-2 Wind Drag Coefficient Maximum Permissible Wind Speed If the wind resistant area of the load Awr is greater than (load) Shape the allowable wind resistant area Awr , the ratio can be (allow) used to determine a permissible wind speed V(z) for the load 1.1 to 2.0 using (Table 2-3).
  • Page 31 RT770E OPERATOR MANUAL SAFETY INFORMATION Rated Load Chart Example - Metric 8383-1 FIGURE 2-3 Grove 2-13 Published 04-04-2017, Control # 446-09...
  • Page 32 SAFETY INFORMATION RT770E OPERATOR MANUAL Table 2-4 Example-Capacity Reduction Factors for Wind Speed V(z) Greater than 13.4 m/s - Metric (Only for lifting with main boom on fully extended outriggers, with or without stowed extension) For wind speed V(z) (3-second gust speed at boom tip height) V(z) > 13.4 m/s ≤ 20.1 m/s, the Reduced Capacity shall be calculated by multiplying the Published Rated Capacity by the following factors: Main Boom Length in Meters Wind Speed...
  • Page 33 RT770E OPERATOR MANUAL SAFETY INFORMATION At wind speeds greater than 13.4 m/s, it is not permissible to Load example 1.3a: lift a load greater than 12,040 kg, even if the wind resistance With large wind resistance area of the load Awr (load) area of the load is less than 14.45 m •...
  • Page 34 SAFETY INFORMATION RT770E OPERATOR MANUAL • Is the load to be lifted less than allowable load? Ratio = 1.37 8,000 kg ≤ 12,040 kg • Is Awr less than Awr (load) (allow) From (Table 2-5), the maximum permissible wind speed at 19.83 m ≤...
  • Page 35 RT770E OPERATOR MANUAL SAFETY INFORMATION Rated Load Chart Example - Non-metric 8382-1 FIGURE 2-4 Grove 2-17 Published 04-04-2017, Control # 446-09...
  • Page 36 SAFETY INFORMATION RT770E OPERATOR MANUAL Table 2-6Example-Capacity Reduction Factors for Wind Speed V(z) Greater than 30 mph - Non-metric (Only for lifting with main boom on fully extended outriggers, with or without stowed extension) For wind speed Vz (3-second gust speed at boom tip height) is greater > 30> mph ≤ 45 mph, the Reduced Capacity shall be calculated by multiplying the Published Rated Capacity by the following factors: Main Boom Length in Feet Wind Speed...
  • Page 37 RT770E OPERATOR MANUAL SAFETY INFORMATION • Is Awr less than Awr (load) (allow) 108 ft ≤ 119 ft L i f t i n g L i m i t s a t w i n d s p e e d V ( z ) > 3 0 m p h Conclusion: This load is permissible to lift in wind speed up and ≤...

  • Page 38: Lifting Operations

    SAFETY INFORMATION RT770E OPERATOR MANUAL Refer to the above Lifting Limits at wind speed V(z) injury could result from the crane tipping over or failing > 30 mph and ≤ 45 mph. Comparing the load and wind structurally from overload. resistant area to the allowable: The crane can tip over or fail structurally if: •...

  • Page 39: Counterweight

    The “balance point” for stability testing perform tilt-up panel lifting with two hoist lines poses new and according to SAE and Manitowoc criteria is a condition of different hazards than does normal lifting use. loading wherein the load moment acting to overturn the...

  • Page 40: Pile Driving And Extracting

    All hoist hooks shall be equipped with a positive locking driving or pile extraction is being considered. latch. It is not the intention of Manitowoc to recommend specific Crane Inspection types or makes of pile driving and pile extraction equipment, but rather to advise of the operational requirements to help •...

  • Page 41: Electrocution Hazard

    DANGER Electrocution Hazard! Thoroughly read, understand, and abide by all applicable Manitowoc cranes are not equipped with all features federal, state, and local regulations regarding operation of required to operate within OSHA 29CFR1926.1408, cranes near electric power lines or equipment.

  • Page 42: Set-Up And Operation

    SAFETY INFORMATION RT770E OPERATOR MANUAL Most overhead power lines are not insulated. Treat all Appoint a reliable and qualified signal person, equipped with overhead power lines as being energized unless you have a loud signal whistle or horn and voice communication reliable information to the contrary from the utility company equipment, to warn the operator when any part of the crane or owner.

  • Page 43: Electrical Contact

    2.0 m (6.6 ft)) at least 1.5 m (5 ft) into the any evidence of damage and all damaged parts are repaired ground. or replaced as authorized by your Manitowoc distributor or Moisten the soil around the metal rod (3) for better Manitowoc Crane Care.

  • Page 44: Personnel Handling

    ASME B30.5, Mobile and Locomotive Cranes, ASME B30.8, Floating Cranes and Floating Derricks, and in OSHA regulations 29CFR1910.180 for General Industry and 29CFR1926.1431 for Construction. Use of a Manitowoc crane to handle personnel is acceptable provided: • The requirements of the applicable national, state and local regulations and safety codes are met.

  • Page 45: Environmental Protection

    Manitowoc reminds crane owners to ensure that all safety requirements of applicable national, state and local decals are in place and legible. Manitowoc continues to urge regulations and safety codes are met. crane owners to upgrade their cranes with rated capacity •...

  • Page 46: Lubrication

    • Consult with Manitowoc Crane Care to determine if load pressure is relieved. To relieve hydraulic pressure, stop testing is required after a structural repair is performed.

  • Page 47: Tires

    Use only the hoist rope specified by Manitowoc as indicated rope. The nominal strength of a rope should never be on the crane’s Capacity Chart. Substitution of an alternate used as its working load.

  • Page 48: Sheaves

    SAFETY INFORMATION RT770E OPERATOR MANUAL • If an operator hoists the hook block up or down too fast Broken wires; number and location. when reeved with multiple parts of line and no hook load, Reduction in diameter. the wire rope can bird cage and damage the rope. Rope stretch (elongation).

  • Page 49: Batteries

    RT770E OPERATOR MANUAL SAFETY INFORMATION Inspect the boom nose and hook block sheaves for proper • Do not short across the battery posts to check charge. operation, excessive wear, and damage every 50 hours or Short circuit, spark, or flame could cause battery weekly.

  • Page 50: Transporting The Crane

    SAFETY INFORMATION RT770E OPERATOR MANUAL required, keep hands clear of the engine fan and other on the boom, it must be secured at the tie down on the carrier moving parts while performing maintenance. to prevent swinging. Be careful of hot surfaces and hot fluids when performing When using hookblock tie downs, excessive loading can be maintenance on or around the engine.

  • Page 51: Work Practices

    Always drive the crane carefully obeying speed limits and system that have not been evaluated and approved by highway regulations. Manitowoc Crane Care. Stay alert at the wheel. Do not step on surfaces on the crane that are not approved or suitable for walking and working.

  • Page 52: Working

    SAFETY INFORMATION RT770E OPERATOR MANUAL • Check for proper functioning of all controls and operator Never operate the crane when darkness, fog, or other aids (for example, RCL). visibility restrictions make operation unsafe. Never operate a crane in thunderstorms or high winds. •...

  • Page 53: Lifting

    RT770E OPERATOR MANUAL SAFETY INFORMATION Be sure the load is well secured and attached to the hook with rigging of proper size and in good condition. Check the hoist brake by raising the load a few inches, stopping the hoist and holding the load. Be sure the hoist brake is working correctly before continuing the lift.

  • Page 54: Hand Signals

    SAFETY INFORMATION RT770E OPERATOR MANUAL Be sure everyone is clear of the crane and work area before • Moving the crane in an area or direction in which the making any lifts. operator cannot clearly see the path of travel. Never swing over personnel, regardless of whether load is At all times use standardized hand signals - previously suspended from or attached to the boom.
  • Page 55 RT770E OPERATOR MANUAL SAFETY INFORMATION FIGURE 2-10 8496-1 Grove 2-37 Published 04-04-2017, Control # 446-09...

  • Page 56: Jib

    Use the most stable and secure position. However, Manitowoc caution handling and operating these components in sub- recognizes that certain jobsite conditions may not permit the zero temperatures, avoiding shock loading.

  • Page 57: Temperature Effects On Hook Blocks

    RT770E OPERATOR MANUAL SAFETY INFORMATION If applicable to your crane, frequently check all air tanks for The change in the length of a cylinder is proportional to the water in freezing weather. extended length of the cylinder and to the change in temperature of the oil in the cylinder.

  • Page 58: Model Specific Information

    SAFETY INFORMATION RT770E OPERATOR MANUAL Table 2-8: Boom Drift Chart (Cylinder length change in inches) Coeff. = 0.00043 (in / °F) STROKE Temperature Change (°F) (FT.) 0.26 0.52 0.77 1.03 1.29 1.55 1.81 2.06 2.32 2.58 0.52 1.03 1.55 2.06 2.58 3.10 3.61...

  • Page 59: Overload Inspection

    • Perform the inspections outlined in this publication for overloads up to 50%. • Stop operating the crane and contact Manitowoc Crane Care immediately for overloads of 50% and higher. NOTE: If your crane is equipped with CraneSTAR, an overload warning will be posted to the web site for review by the crane owner.

  • Page 60: Boom Inspection

    SAFETY INFORMATION RT770E OPERATOR MANUAL Boom Inspection 9, 10 3, 4 9, 10 2-42 Published 04-04-2017, Control # 446-09...
  • Page 61 RT770E OPERATOR MANUAL SAFETY INFORMATION Overload less than 25% Sheaves Inspect all for damage. Luffing Mechanism/ Inspect for damage/leaks. Cylinder Collar-wear Inspect all for damage. pads Overload from 25% to 49% Sheaves Inspect all for damage. Luffing Mechanism/ Inspect for damage/leaks. Cylinder Collar-wear Inspect all for damage.

  • Page 62: Superstructure Inspection

    SAFETY INFORMATION RT770E OPERATOR MANUAL Superstructure Inspection 9, 10 2-44 Published 04-04-2017, Control # 446-09...
  • Page 63 RT770E OPERATOR MANUAL SAFETY INFORMATION Overload less than 25% Lift Cylinder Inspect for leaking. Turntable See topic in Swing section of Check bolts for proper torque. Bearing Service Manual. See topic in Introduction section Wire Rope Inspect all for damage. of Service Manual.

  • Page 64: Carrier Inspection

    SAFETY INFORMATION RT770E OPERATOR MANUAL Carrier Inspection 5, 6 2-46 Published 04-04-2017, Control # 446-09...
  • Page 65 RT770E OPERATOR MANUAL SAFETY INFORMATION Overload less than 25% Jack Cylinders Inspect for leaking. Outrigger Inspect for deformation and cracked welds. Pads Overload from 25% to 49% Jack Cylinders Inspect for leaking. Outrigger Inspect for deformation and cracked welds. Pads Outrigger Inspect for deformation and cracked welds.
  • Page 66 SAFETY INFORMATION RT770E OPERATOR MANUAL 2-48 Published 04-04-2017, Control # 446-09...
  • Page 67 RT770E OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES SECTION 3 OPERATING CONTROLS AND PROCEDURES SECTION CONTENTS Controls and Indicators ..... 3-2 Transmission Warning .

  • Page 68: Controls And Indicators

    OPERATING CONTROLS AND PROCEDURES RT770E OPERATOR MANUAL Seat Frame Slide Lever....3-16 Miscellaneous Controls and Indicators ..3-20 Fuse Panel .

  • Page 69: Steering Column

    RT770E OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Item Description Hazard Lights Switch Engine Diagnostic/Speed Control Switch Increment/Decrement Switch Ignition Switch Transmission Shift Lever Gauge Display Turn Signal Lever and Windshield Wiper/ Washer/Headlight /Horn Controls The Turn Signal Lever and Windshield Wiper/Washer Controls (1) (Figure 3-2) are located on the left side of the steering column.

  • Page 70: Drive Axle Selector Switch

    OPERATING CONTROLS AND PROCEDURES RT770E OPERATOR MANUAL and side of the crane. When the switch is in the ON position, Increment/Decrement Switch the steering column and switch lights are illuminated. The Increment/Decrement Switch (8) (Figure 3-2) is a three position momentary rocker switch with center maintained Drive Axle Selector Switch position being off.

  • Page 71: Transmission Shift Lever

    RT770E OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Transmission Shift Lever Skylight Window Latch The Skylight Window Latch (1, (Figure 3-3)) is at the front of the window. Squeeze the latch and slide the window to the CAUTION rear to open. to close slide the window forward until the latch engages.

  • Page 72: Overhead Control Panel

    OPERATING CONTROLS AND PROCEDURES RT770E OPERATOR MANUAL OVERHEAD CONTROL PANEL 8126-1 FIGURE 3-4 Heater Control Switch Figure 3-4 Item Numbers Item Description The Heater Control Switch (2, Figure 3-4) controls intensity of heating temperature. Turn the switch to the right (clock- Heater/Air Conditioner Fan Switch wise) to open the valve for heat.

  • Page 73: Boom Lights Switch (Optional)

    RT770E OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Boom Lights Switch (Optional) With the engine idling push the EXHAUST System Cleaning Switch (9) to initiate regeneration. The Boom Lights Switch (7) (Figure 3-4) is located on the Within 5 seconds the engine should rev up to 1000 to 1400 side display panel.

  • Page 74: Boom Manual/Automatic Mode Selector Switch And Indicator

    OPERATING CONTROLS AND PROCEDURES RT770E OPERATOR MANUAL Boom Manual/Automatic Mode Selector With the Boom Manual/Automatic Mode Selector Switch (12) (Figure 3-4) positioned to automatic mode and the Boom A/B Switch and Indicator Mode Selector Switch (14) positioned to A mode (top of The Boom Manual/Automatic Mode Selector Switch (12) switch is pressed), the boom control system, when extending (Figure 3-4) and Indicator (13) are located on the overhead...

  • Page 75: Steering Column Indicator And Gauge Display

    RT770E OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES STEERING COLUMN INDICATOR AND GAUGE DISPLAY As a system check, the indicators will come on for two seconds when the Ignition Switch is turned to the RUN position. FIGURE 3-6 Figure 3-6 Item Numbers Item Description Item...

  • Page 76: Swing Brake Engaged

    OPERATING CONTROLS AND PROCEDURES RT770E OPERATOR MANUAL Transmission Warning Item Description The Transmission Warning Indicator (6) (Figure 3-6) is Battery Charge Indicator located in the steering column gauge display. It illuminates Voltmeter red during high transmission oil temperature conditions. A Tachometer warning buzzer will also sound.

  • Page 77: Lcd Display

    RT770E OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES LCD Display If this indicator light illuminates, note the fault code and see Engine Operator Manual. The LCD Display(12) (Figure 3-6) is located in the steering The Engine Warning Indicator may also illuminate with the column gauge display.

  • Page 78: Right Turn Signal Indicator

    OPERATING CONTROLS AND PROCEDURES RT770E OPERATOR MANUAL Right Turn Signal Indicator amber for a period of time when the ignition switch is in the ON position. The engine should not be cranked until the The Right Turn Signal Indicator (16) (Figure 3-6) is located in Wait-To-Start light turns off.

  • Page 79: Low Fuel Level

    RT770E OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Low Fuel Level on to indicate the batteries are being drained and not being charged. The Low Fuel Level Indicator (27) (Figure 3-6) illuminates when the fuel level in the tank is nearing empty (15%). When Voltmeter this indicator comes on fuel should be added to the fuel tank The Voltmeter (battery gauge) (29) (Figure 3-6) is located in...

  • Page 80: Control Seat Assembly (Single Axis)

    OPERATING CONTROLS AND PROCEDURES RT770E OPERATOR MANUAL CONTROL SEAT ASSEMBLY (SINGLE AXIS) 7649-4 FIGURE 3-8 Main Hoist Joystick (Single Axis) Figure 3-8 Item Numbers Item Description The Main Hoist Joystick(1) (Figure 3-8) is located on the right armrest. The joystick, when pushed forward, lowers the Main Hoist Joystick, Raise/ Lower cable;...

  • Page 81: Telescope Or Auxiliary Hoist Joystick (Single Axis)

    RT770E OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES main hoist functions and de-energizes the Main Hoist High hoist. When equipped with an auxiliary hoist, the joystick Speed Solenoid, resulting in low line speeds. controls the swing and auxiliary hoist functions and the telescope functions are controlled through a foot pedal.

  • Page 82: Axle Differential Lock Control Switch (Optional)

    OPERATING CONTROLS AND PROCEDURES RT770E OPERATOR MANUAL Axle Differential Lock Control Switch HRI Display (Optional) The display is located in the front overhead panel Figure 3-9. The LED display illuminates to indicate the current hoist in NOTE: The differential lock will only work when the crane operation and which direction the hoist is rotating.

  • Page 83: Side Control Panel

    RT770E OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES SIDE CONTROL PANEL Rated Capacity Limiter (RCL) and Work Area Definition System (WADS) Control Panel The RCL and WADS Control Panel (1) (Figure 3-10) is located on the right side of the cab. It maintains the controls and indicators for the crane’s Rated Capacity Limiter System and Work Area Definition System.

  • Page 84: 12V Receptacle

    A laptop computer with a nine pin cable connector and the appropriate service software are required. Contact your local Grove distributor or Manitowoc Crane Care for assistance. Bubble Level Indicator The Bubble Level Indicator (9) (Figure 3-10) is located by the house lock control on the right side of the crane.

  • Page 85: Foot Pedal Controls

    RT770E OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Item Description Item Description Left Rear Extension/Jack Cylinder Swing Brake Pedal Retract O/R Telescope Control Foot Pedal (Optional) Extend O/R Service Brake Foot Pedal Foot Throttle Pedal The Outrigger Control Box (1, Figure 3-11) is stowed in the cab (Figure 3-1) and is used to control the outriggers from 360°...

  • Page 86: Miscellaneous Controls And Indicators

    OPERATING CONTROLS AND PROCEDURES RT770E OPERATOR MANUAL MISCELLANEOUS CONTROLS AND clockwise), the switch will override and prevent the RCL from locking out the three craning functions (boom down, INDICATORS telescope extend, and hoist up) should an overload or two- block condition occur. Fuse Panel Overriding the RCL with this switch should only be done in The fuse panel (1) (Figure 3-13) is located behind the cab...

  • Page 87: Rcl Internal Light Bar (Optional) (Not Shown)

    RT770E OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES indicator that, when actuated, will override and prevent the The alarm system is electrical and consists of the backup RCL, for a period of 30 minutes, from locking out the three alarm and its associated wiring. The alarm is connected to craning functions (boom down, telescope extend, and hoist the electrical wiring for the transmission reverse solenoids.

  • Page 88: Cold Climate Engine Operation

    Tires Manitowoc recommends the crane is equipped with the Check for severe cuts, foreign objects embedded in treads, following cold weather accessories: and for correct inflation pressures. A tire inflation chart, providing the correct air pressures, is located in the Load Down to -29°C (-20°F) Package...
  • Page 89 This can be done by installing an air pressure heater, swivel, battery heater, in-line fuel pump, in-line fuel sensor kit (Manitowoc part number 90037674). Contact an heater, and hydraulic reservoir heater are heating properly. authorized Manitowoc distributor or Manitowoc Crane Care for additional assistance.

  • Page 90: Crane Warm-Up Procedures

    Lubrication section of your crane’s Operator Manual, by contacting your local An air diverter directs warmed air collected from under the Manitowoc distributor, or by contacting Manitowoc Crane engine hood when the temperature is below -9°C (15°F) to Care directly).

  • Page 91: Hoist

    Manitowoc distributor. and to circulate gear lubricant through the planetary gear sets.
  • Page 92 OPERATING CONTROLS AND PROCEDURES RT770E OPERATOR MANUAL Ensure the parking brake is set to On, position the transmission to neutral, and depress the service brake CAUTION foot pedal. Machine Damage Hazard! NOTE: The engine will not crank unless the transmission Never crank the engine for more than 30 seconds during shift lever is in neutral and the service brake foot an attempted start.

  • Page 93: Transporting The Crane

    RT770E OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Transporting the Crane The buzzer will sound upon turning the Ignition Switch to START and turn off after proper hydraulic oil pressure is reached. CAUTION The Wait-to-Start lamp is illuminated during the preheat Machine Damage Hazard! time that takes place when the Ignition switch is in the ON position during cold weather starting.
  • Page 94 The owner/lessee must take appropriate measures to operating instructions.) ensure that all persons operating or working with the affected models are in compliance with The Manitowoc Company, Inc. recommendations. The operator of the crane assumes responsibility for determining the suitability of traveling conditions.
  • Page 95 OPERATING CONTROLS AND PROCEDURES personnel performing the operation and/or working around Traveling — Being Towed/Pulled the crane. Manitowoc recommends connecting to a pintle hook (if equipped) or evenly attaching to the tie-down lugs when Traveling — Towing/Pulling being towed by another vehicle.,...
  • Page 96 The Manitowoc Company, • Limit boom angle to a maximum of 20°.
  • Page 97 RT770E OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES • Remove all cribbing or other non-standard accessories • Limit main boom angle to a minimum of 0° and a from the crane. maximum of 20°. • Avoid holes, rocks, extremely soft surfaces and any •...
  • Page 98 OPERATING CONTROLS AND PROCEDURES RT770E OPERATOR MANUAL Traveling — Forward CAUTION CAUTION Possible Machine Damage! Machine Damage Hazard! Do not downshift to a lower gear if the road speed is greater than the maximum speed of the lower gear. Engage the turntable lock pin for extended travel. Failure to engage the lock pin may allow the superstructure to Traveling —...
  • Page 99 RT770E OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Crabbing Position the Drive Axle Selector Switch to four-wheel low. Crabbing is accomplished with the steering wheel and the NOTE: If the Drive Axle Selector Switch is positioned to Rear Steer Control Switch. Depending upon which direction four-wheel low and the Service Brake Foot Pedal is the operator wishes to travel (crab), the steering wheel is turned in the same direction as the Rear Steer Control...
  • Page 100 OPERATING CONTROLS AND PROCEDURES RT770E OPERATOR MANUAL Lock the differentials by pressing and holding the Axle Proceed over the poor road condition cautiously. Differential Control Switch in the lock position; When the adverse condition has passed, disengage the disengage the function by releasing the switch. differential locks by doing the following: Lock/unlock the differentials only when the vehicle is Release the Axle Differential Lock control Switch,...

  • Page 101: General Crane Operation

    RT770E OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES rear axle does not lock or unlock properly, evaluate the lockout system and repair as necessary. General Crane Operation Pump Drive The main hydraulic pumps are mounted on the torque converter drive pad. The pumps operate any time the engine is running.
  • Page 102 OPERATING CONTROLS AND PROCEDURES RT770E OPERATOR MANUAL Another section contains the notes for lifting capacities. Be Crane Functions sure to read and understand all the notes concerning lifting Setting the Outriggers capacities. Engage the Parking Brake. The load chart also gives weight reductions for load handling devices such as hook blocks, headache balls, boom NOTE: The Parking Brake must be engaged to enable...
  • Page 103 RT770E OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Outrigger Selector Panel and hold the Outrigger If the crane is setup on outriggers and “On Outriggers” is Extension/Retraction Switch EXTEND. chosen when programming the RCL (Figure 3-18), then the appropriate jack cylinder begins to move. OMS indicates to the RCL the horizontal position of each of the four outrigger beams.
  • Page 104 OPERATING CONTROLS AND PROCEDURES RT770E OPERATOR MANUAL Slowly extend or retract the outrigger beam, allowing the extension/retraction switch slightly while pulling locking pin to drop into the hole in the top of the outrigger upward on the pin. beam, engaging the outrigger beam at the desired Lift the lock pin and turn it 90°...
  • Page 105 RT770E OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Lowering the Boom If crane is equipped with an auxiliary hoist, push on the top of the Telescope Control Foot Pedal to extend the boom. Retracting the Boom DANGER Crushing and/or Tipping Hazard! DANGER Keep the area beneath the boom clear of all obstructions and personnel when lowering the boom.
  • Page 106 OPERATING CONTROLS AND PROCEDURES RT770E OPERATOR MANUAL Lowering and Raising the Hoist Cable impending capacity when the system has been properly preset by the operator. The control panel is mounted in the front console of the operator cab. When an overload condition is sensed, the system provides the operator with a visual and audible warning, and locks out the control levers DANGER...

  • Page 107: Stowing And Parking

    RT770E OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Control Lever Lockout System CAUTION The control lever lockout system consists of hydraulic solenoid valves (located in the directional control valves) Risk of Undesirable Operation! which are in series between the hydraulic remote control To avoid possible engine fault codes and undesirable valves in the cab and the pilot-operated directional control operation, ensure the keyswitch has been off two minutes...
  • Page 108 OPERATING CONTROLS AND PROCEDURES RT770E OPERATOR MANUAL THIS PAGE BLANK 3-42 Published 04-04-2017, Control # 446-09...

  • Page 109: General

    RT770E OPERATOR MANUAL SET-UP AND INSTALLATION SECTION 4 SET-UP AND INSTALLATION SECTION CONTENTS General ........4-1 Boom Extension Rigging Mode .

  • Page 110: Working Position

    SET-UP AND INSTALLATION RT770E OPERATOR MANUAL Working Position Place the hoist access platform hand rail (1) (Figure 4-2) and step (2) (Fixed counterweight units only) into the working position: Pull out on the step locking pin (1) (Figure 4-2), slide the step (2) out to the working position and release the locking pin into the locking hole.

  • Page 111: Dead-End Rigging/Wedge Sockets

    If there are any questions, contact your local Manitowoc distributor or Manitowoc Crane Care Live End Do not mix components from different manufacturers. The selection, installation and use of a wedge socket assembly...
  • Page 112 SET-UP AND INSTALLATION RT770E OPERATOR MANUAL Make sure the live-loaded side (Figure 4-6) of the rope is When using method A, place a wire rope clip around the directly in line with the ears of the socket and the dead end by clamping a short extra piece of rope to the rope direction of pull to which the rope will be subjected.
  • Page 113 RT770E OPERATOR MANUAL SET-UP AND INSTALLATION Specialty Clip Specialty Wedge FIGURE 4-7 Grove Published 04-04-2017, Control # 446-09...
  • Page 114 SET-UP AND INSTALLATION RT770E OPERATOR MANUAL Upper Boom To Hoist Nose Sheaves Bottom Boom Nose Sheaves Ball To Hoist SINGLE PART LINE TO HOIST 0° OFFSET 6415-1 Ball To Hoist To Hoist 25° OFFSET 6415-2 45° OFFSET 6415-3 SINGLE PART LINE USING BOOM EXTENSION FIGURE 4-8 Published 04-04-2017, Control # 446-09...
  • Page 115 RT770E OPERATOR MANUAL SET-UP AND INSTALLATION Upper Boom Nose Sheaves To Main Hoist Bottom Boom Nose Sheaves Boom Nose Dead End Hookblock Sheaves EIGHT PARTS LINE FIGURE 4-8 continued Grove Published 04-04-2017, Control # 446-09...

  • Page 116: Erecting And Stowing The Bi-Fold Boom Extension

    SET-UP AND INSTALLATION RT770E OPERATOR MANUAL ERECTING AND STOWING THE BI-FOLD • Extension of the boom in Manual Mode, with Boom Section 2-4 selected BOOM EXTENSION The Boom Extension Rigging Mode requires that the boom Description be extended in Auto Mode with B Mode selected, or Manual Mode with Section 1 selected until the boom automatically A 33 ft (10.1 m) fixed offsetable or a 10.1 to 17.1 m (33 to 56 stops and is clear of the guide ramps and stowage pins on...
  • Page 117 RT770E OPERATOR MANUAL SET-UP AND INSTALLATION 6056 FIGURE 4-10 Item Description Item Description Base To Fly Attachment Pins Mast Assembly Boom Extension Base Section Boom Nose To Boom Extension Attachment Anchor Fittings Boom Extension Fly Section Boom Nose To Boom Extension Attachment Fly Rear Stowage Bracket Pins Stinger Section Front Stowage Bracket...
  • Page 118 SET-UP AND INSTALLATION RT770E OPERATOR MANUAL 6160 Item Description Boom Extension Base Section Adjusting Bolt Upper Hanger Main Hanger Lower Support Lock Hitch Pin DETAIL A 6058 Adapter Item Description Boom Extension Fly Section Adjusting Bolt Adjusting Bolts Front Mount Hanger DETAIL B 6058...
  • Page 119 RT770E OPERATOR MANUAL SET-UP AND INSTALLATION Item Description Boom Extension Base Section Boom Extension Fly Section Shock Wear Pad and Shim Ramp Wear Pad and Shim DETAIL C Item Description Boom Extension Base Section Boom Extension Fly Section Fly Attachment Pin and Hitch Pin Adjusting Bolts Pin Stowage Lug Upper Support...
  • Page 120 SET-UP AND INSTALLATION RT770E OPERATOR MANUAL Item Description Boom Extension Base Section Boom Extension Fly Section Fly Sheave Cable Retainer Pins Latch Hook Spring Latch Bar DETAIL E Item Description Boom Nose Upper Sheaves Mast Assembly Offset Links Offset Pivot Points Offset Link Pins Stowage Lugs Mast Assembly Pin...
  • Page 121 RT770E OPERATOR MANUAL SET-UP AND INSTALLATION Pull down on the handle to disengage the spring loaded 10. Attach a length of rope to the extension base section tip boom stop block. Place the end of the handle in the to aid in the extension of the swingaway into place retainer plate.
  • Page 122 SET-UP AND INSTALLATION RT770E OPERATOR MANUAL 20. Extend the boom extension alignment jack until the lower left side boom nose and boom extension adapter lugs are aligned; install the attachment pin into the lower left anchor and attachment fitting of the boom nose. Install retainer clip in attachment pin.

  • Page 123: Stowing The Boom Extension

    RT770E OPERATOR MANUAL SET-UP AND INSTALLATION Install the attachment pin into the anchor and Lower the boom, then extend the boom only enough to attachment fittings on the left side of the base disengage the spring loaded boom stop block. section.
  • Page 124 SET-UP AND INSTALLATION RT770E OPERATOR MANUAL DANGER When stowing the extension fly, ensure that all personnel and equipment are kept clear of the swing path. d. Slightly raise and/or lower the boom to help control the extension fly. Using the rope attached to the tip of the fly section, swing the fly to the side of the base section.

  • Page 125: Setting The Folding Swingaway Offset

    RT770E OPERATOR MANUAL SET-UP AND INSTALLATION Setting the Folding Swingaway Offset 22. Ensure that all of the stowage lugs on the base and fly are fully engaged with the pins on the stowage brackets. 23. Fully lower the boom. DANGER 24.

  • Page 126: Erecting And Stowing The Bi-Fold Boom Extension With The 6.1 M (20 Ft) Insert

    SET-UP AND INSTALLATION RT770E OPERATOR MANUAL degree offset position align in the offset links. Install Retract the boom leaving the bi-fold extension on the the offset pins and clip pins. blocking. Slowly elevate and telescope the boom at the same Using the main or auxiliary hoist cable, lift the Insert by time so that the extension does not move off of the the lifting lugs and position it at the base end of the bi-...
  • Page 127 RT770E OPERATOR MANUAL SET-UP AND INSTALLATION 6055 FIGURE 4-18 Item Description Item Description Boom Nose Upper Sheaves Boom Nose Lower Sheaves Cable Roller Boom Extension Attachment Pins Insert Attachment Pins Bi-Fold Extension Attachment Pins Stowage Lugs Insert Attachment Pins Stowage Lugs Offset Link Pins 6.1 m (20 ft) Insert Zero Degree Offset Holes...

  • Page 128: Stowing

    SET-UP AND INSTALLATION RT770E OPERATOR MANUAL Stowing Attach a hook to the hoist cable. Attach the hoist cable hook to the lifting lugs on the NOTE: If equipped, the folding fly section must be stowed insert. Lift the assembly and reposition the blocking on the side of the base section.

  • Page 129: Fixed Counterweight

    RT770E OPERATOR MANUAL SET-UP AND INSTALLATION FIXED COUNTERWEIGHT Take up any slack on the lifting device and raise the counterweight just enough to remove any pressure on Description the left and right counterweight pin assemblies. Remove the pins from the superstructure frame lugs and The counterweight (Figure 4-19) is pinned to the rear of the the counterweight.
  • Page 130 SET-UP AND INSTALLATION RT770E OPERATOR MANUAL Using the four counterweight leveling bolts, level the Counterweight Plate counterweight and eliminate any relative movement The counterweight has a removable counterweight plate between the counterweight and turntable. Maximum attached to its rear wall with capscrews, flat washers and height of counterweight shall not exceed 6 mm (0.24 in) nuts.

  • Page 131: Removable Counterweight (Optional)

    RT770E OPERATOR MANUAL SET-UP AND INSTALLATION REMOVABLE COUNTERWEIGHT Remove the attach pins from the counterweight lugs and cylinder ends. Raise the cylinders and stow the attach (OPTIONAL) pins in cylinder and insert retainer clip pins. DANGER DANGER Death or serious injury could result from being crushed by Travel is not permitted with the removable counterweight a falling counterweight.
  • Page 132 SET-UP AND INSTALLATION RT770E OPERATOR MANUAL 5 (4 places) 6670-1 FIGURE 4-21 Item Description Removal Cylinders Cylinder Attach Pins Counterweight Attach Pins 6042 kg (13,300 lb) Counterweight Leveling Bolts (4 places) Leveling Bolts Counterweight Lifting Lugs (4 places) FIGURE 4-22 Adjust four counterweight...

  • Page 133: Section 5

    NOTE: All fluids and lubricants may be purchased by Potentially harmful waste used in Manitowoc cranes includes contacting an authorized Manitowoc distributor or — but is not limited to — oil, fuel, grease, coolant, air Manitowoc Crane Care Parts Department.

  • Page 134: Standard Lubricants

    -9°C (15°F). Refer to TABLE 5-1: for a list of the Standard lubricants are used on all Manitowoc cranes unless recommended standard lubricants. the crane is ordered with a cold weather package. These TABLE 5-1: Standard Lubricants [Down to -9°C (15°F)]...

  • Page 135: Arctic Lubricants And Conditions

    -40°C (-40°F) Package bands. Therefore, always check with an authorized Manitowoc distributor or Manitowoc Crane Care if in doubt of • Coolant heater (to circulate warm coolant through the suitability of a specific fluid or lubricant.
  • Page 136 LUBRICATION RT770E OPERATOR MANUAL TABLE 5-2: Cold Weather Lubricants [Down to -29°C (-20°F)] Recommended Lubricant Lubricant/Fluid Grove Spec. Type Grade Classification Axle Gear Oil Petro-Canada Traxon E Syn- thetic CITGO, Syntetic Gear Lube Eaton, Roadranger EP 6829014058 75W-90 Mobil, Mobilube SCH Shell, Spirax S Sunoco Duragear EP Tier 3/Tier 4 Engine Oil...
  • Page 137 RT770E OPERATOR MANUAL LUBRICATION TABLE 5-3: Cold Weather Lubricants [Down to -40°C (-40°F)] Recommended Lubricant Lubricant/Fluid Grove Spec. Type Grade Classification Axle Gear Oil Petro-Canada Traxon E Syn- thetic CITGO, Syntetic Gear Lube Eaton, Roadranger EP 6829014058 75W-90 Mobil, Mobilube SCH Shell, Spirax S Sunoco Duragear EP Tier 3/Tier 4 Engine Oil...

  • Page 138: Surface Protection For Cylinder Rods

    It is recommended that all exposed cylinder rods be protected using Boeshield® T-9 Premium Metal Protectant. RODS Manitowoc Crane Care has Boeshield® T-9 Premium Metal Steel cylinder rods include a thin layer of chrome plating on Protectant available in 12 oz. aerosol cans by ordering part their surfaces to protect them from corroding.

  • Page 139: Lubrication Points

    CraneLUBE A regular frequency of lubrication must be established for all Manitowoc highly recommends the use of CraneLUBE lubrication points. Normally, this is based on component l u b r i c a n ts t o i n c r e a s e y o u r c r a n e ’s r e l i a b i l i t y a n d operating time.

  • Page 140: Steering And Suspension

    LUBRICATION RT770E OPERATOR MANUAL Steering and Suspension Lube Point Figure Approved Lube Item Lube Interval Application Description Lubricant Capacity EP-MPG Extreme Until Steer Cylinder Pressure Figure 5-1 grease 500 hours or 3 months 8 grease fittings Pivot Pins Multipurpose extrudes Grease 6829003477 EP-MPG...
  • Page 141 RT770E OPERATOR MANUAL LUBRICATION 7114-17 7114-20 7114-10 FIGURE 5-1 Grove Published 04-04-2017, Control # 446-09...

  • Page 142: Axles

    LUBRICATION RT770E OPERATOR MANUAL Lube Point Figure Approved Lube Item Lube Interval Application Description Lubricant Capacity Axles • Check level every GL-5 500 hours or 3 Extended Fill to bottom of hole months 22.7 l Differentials Figure 5-2 Service Interval in housing on the (48 pt) •...
  • Page 143 RT770E OPERATOR MANUAL LUBRICATION 8130-1 7114-17 7114-9 FIGURE 5-2 Grove 5-11 Published 04-04-2017, Control # 446-09...

  • Page 144: Drive Train

    LUBRICATION RT770E OPERATOR MANUAL Lube Point Figure Approved Lube Item Lube Interval Application Description Lubricant Capacity Drive Train • Check level every 10 hours or daily EO-15W/40 • Through fill cap to • Drain, fill and replace Engine Oil FULL mark on filter every: 500 hours a.
  • Page 145 RT770E OPERATOR MANUAL LUBRICATION 7649-27 7649-26 7114-23 Other Side Other Side 8130-1 7114-10 7649-25 7795 Fill Location FIGURE 5-3 Grove 5-13 Published 04-04-2017, Control # 446-09...

  • Page 146: Drive Train (Continued)

    LUBRICATION RT770E OPERATOR MANUAL Lube Point Figure Approved Lube Item Lube Interval Application Description Lubricant Capacity Drive Train (continued) • Replace primary filter element when indicator shows red (25 in of H Air Cleaner Replace secondary Filters filter every third time Right hand side of Figure 5-4 primary filter is...
  • Page 147 RT770E OPERATOR MANUAL LUBRICATION 7649-15 7114-11 Other Side 8130-1 Other Side 7114-10 7649-28 7795 FIGURE 5-4 Grove 5-15 Published 04-04-2017, Control # 446-09...

  • Page 148: Turntable

    LUBRICATION RT770E OPERATOR MANUAL Lube Point Figure Approved Lube Item Lube Interval Application Description Lubricant Capacity Turntable • Check and fill every AGMA No. 4 50 hours Extreme Turntable Gear Fill to max level on • Drain and fill after Figure 5-5 Pressure Gear (5.25 qt)
  • Page 149 RT770E OPERATOR MANUAL LUBRICATION 7114-25 7114-24 8130-2 7649-21 FIGURE 5-5 Grove 5-17 Published 04-04-2017, Control # 446-09...

  • Page 150: Outriggers

    LUBRICATION RT770E OPERATOR MANUAL Lube Point Figure Approved Lube Item Lube Interval Application Description Lubricant Capacity Outriggers EP-MPG Extreme Brush lubricant on Pressure Outrigger Beams Figure 5-6 50 hours or 1 week bottom of outrigger Multipurpose beams Grease 6829003477 Brush lubricant on EP-MPG ID of jack cylinder Extreme...
  • Page 151 RT770E OPERATOR MANUAL LUBRICATION 8130-1 FIGURE 5-6 Grove 5-19 Published 04-04-2017, Control # 446-09...

  • Page 152: Boom

    LUBRICATION RT770E OPERATOR MANUAL Lube Point Figure Approved Lube Item Lube Interval Application Description Lubricant Capacity Boom Until Upper Lift Figure 5-7 greases 500 hours or 3 months 2 grease fittings Cylinder Pin extrudes Until EP-MPG Lower Lift Figure 5-7 greases 500 hours or 3 months 2 grease fittings...
  • Page 153 RT770E OPERATOR MANUAL LUBRICATION 7114-25 7114-16 8130-1 7114-32 FIGURE 5-7 Grove 5-21 Published 04-04-2017, Control # 446-09...

  • Page 154: Boom (Continued)

    LUBRICATION RT770E OPERATOR MANUAL Boom Lube Point Figure Approved Lube Lube Operation Item Application Description Lubricant Capacity Interval Mode and Length Boom (continued) NOTE: Crane Setup: Machine Shall be set up on firm level surface with fully extended outriggers and counterweight installed.
  • Page 155 RT770E OPERATOR MANUAL LUBRICATION Boom Lube Point Figure Approved Lube Lube Operation Item Application Description Lubricant Capacity Interval Mode and Length • 4points • 16 places • Extend EP-MPG Thoroughly boom, Extreme Boom Tele 1 - coat all aligning Pressure 50 hours or 1 •...
  • Page 156 LUBRICATION RT770E OPERATOR MANUAL FIGURE 5-8 5-24 Published 04-04-2017, Control # 446-09...

  • Page 157: Boom (Continued)

    RT770E OPERATOR MANUAL LUBRICATION Boom Lube Point Figure Approved Lube Lube Operation Item Application Description Lubricant Capacity Interval Mode and Length Boom (continued) Boom Tele 1 Thoroughly • 8 Points Section Lower coat all • 24 places 50 hours or •...
  • Page 158 LUBRICATION RT770E OPERATOR MANUAL Boom Lube Point Figure Approved Lube Lube Operation Item Application Description Lubricant Capacity Interval Mode and Length • 2 Points • 2 grease fittings • Fully extend Tele 1, then extend Until • [B] 26.2 m Retract Cable 250 hours or Tele 2 until...
  • Page 159 RT770E OPERATOR MANUAL LUBRICATION FIGURE 5-9 Grove 5-27 Published 04-04-2017, Control # 446-09...

  • Page 160: Boom (Continued)

    LUBRICATION RT770E OPERATOR MANUAL Lube Point Approved Lube Item Figure No. Lube Interval Application Description Lubricant Capacity Boom (continued) Until Boom Pivot Shaft Figure 5-10 grease 250 hours or 3 months 2 grease fittings extrudes Until Boom Extension Figure 5-10 grease 250 hours or 3 months 1 grease fitting...
  • Page 161 RT770E OPERATOR MANUAL LUBRICATION 7114-27 7114-15 8130-2 7649-17 FIGURE 5-10 Grove 5-29 Published 04-04-2017, Control # 446-09...

  • Page 162: Boom (Continued)

    LUBRICATION RT770E OPERATOR MANUAL Lube Point Approved Lube Item Figure No. Lube Interval Application Description Lubricant Capacity Boom (continued) Until EP-MPG Mast Sheave Figure 5-11 grease 500 hours or 12 months 1 grease fitting Extreme extrudes Pressure Multipurpose Until Grease Overhaul Ball Figure 5-11 grease...
  • Page 163 RT770E OPERATOR MANUAL LUBRICATION 7114-30 8130-2 7115-33 FIGURE 5-11 Grove 5-31 Published 04-04-2017, Control # 446-09...

  • Page 164: Hoist

    LUBRICATION RT770E OPERATOR MANUAL Lube Point Approved Lube Item Figure No. Lube Interval Application Description Lubricant Capacity Hoist Oil must be visible in • Check and fill every AGMA the sight glass and 50 hours or weekly Extreme 14.7 l the level no more Main Hoist Figure 5-12...
  • Page 165 RT770E OPERATOR MANUAL LUBRICATION 7114-7 8130-1 FIGURE 5-12 Grove 5-33 Published 04-04-2017, Control # 446-09...

  • Page 166: Hydraulic

    "milky" with only a small layer of transparent oil on top. If the "milky” appearance was due to air foaming, it will dissipate and the oil should closely match the fresh oil. Should you have any questions, please contact your local authorized Manitowoc distributor.
  • Page 167 RT770E OPERATOR MANUAL LUBRICATION 8130-2 7649-22 FIGURE 5-13 Grove 5-35 Published 04-04-2017, Control # 446-09...
  • Page 168 LUBRICATION RT770E OPERATOR MANUAL 8130-2 FIGURE 5-14 5-36 Published 04-04-2017, Control # 446-09...

  • Page 169: General

    RT770E OPERATOR MANUAL MAINTENANCE CHECKLIST SECTION 6 MAINTENANCE CHECKLIST SECTION CONTENTS General ........6-1 Daily or 10 Hour Check List .

  • Page 170: Weekly Or 50 Hour Check List

    MAINTENANCE CHECKLIST RT770E OPERATOR MANUAL Transmission/Torque Converter: Check for proper service/level. Cooling System: Check for proper service/level. Check for cracks or leaks. Fuel/Water Separator: Drain moisture. Air Cleaner: Check for proper service/level. Check for cracks or leaks. Oil Cooler: Check for dirt buildup. Hook Block &...
  • Page 171 RT770E OPERATOR MANUAL OPERATOR MANUAL ALPHABETICAL INDEX Accessing the Hoist Area (Fixed counterweight units only)..... . . 4-1 Accidents ............. 2-2 Cab Overhead Controls .
  • Page 172 OPERATOR MANUAL RT770E OPERATOR MANUAL THIS PAGE BLANK...

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