Manitowoc Grove GRT880 Operator's Manual
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Manitowoc Grove GRT880 Operator's Manual

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Grove GRT880
Operator Manual
8968

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Summary of Contents for Manitowoc Grove GRT880

  • Page 1 Grove GRT880 Operator Manual 8968...
  • Page 2 WARNING California Proposition 65 Breathing diesel engine exhaust exposes you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. • Always start and operate the engine in a well- ventilated area. •...
  • Page 3 OPERATOR MANUAL This manual has been prepared for and is considered part of - GRT880 Crane Model Number This Manual is divided into the following sections: SECTION 1 INTRODUCTION SECTION 2 SAFETY INFORMATION SECTION 3 OPERATING CONTROLS AND PROCEDURES SECTION 4 SET-UP AND INSTALLATION SECTION 5 MAINTENANCE AND LUBRICATION...
  • Page 4 THIS PAGE BLANK...

  • Page 5: Table Of Contents

    GRT880 TABLE OF CONTENTS TABLE OF CONTENTS SECTION 1 ........Introduction General .
  • Page 6 TABLE OF CONTENTS GRT880 Special Operating Conditions and Equipment ......2-26 Grounding the Crane ..........2-26 Personnel Handling .
  • Page 7 GRT880 TABLE OF CONTENTS Right Side Window Latch ..........3-5 Overhead Control Panel .
  • Page 8 TABLE OF CONTENTS GRT880 Limit Bypass Switch (Non-CE Certified Cranes) ......3-15 Limit Bypass Switch and Indicator (CE Certified Cranes) ....3-15 RCL Internal Light Bar (Optional) .
  • Page 9 GRT880 TABLE OF CONTENTS Checking Before Operation..........4-3 Cable Reeving .
  • Page 10 TABLE OF CONTENTS GRT880 THIS PAGE BLANK TOC-6...

  • Page 11: Section 1

    If you are the new owner of a Grove crane, please register it Axle oscillation lockout is automatic when the superstructure with Manitowoc Crane Care so that we have the ability to rotates from the travel position. contact you if the need arises.

  • Page 12: Noise/Vibration Test Results

    Annex G.1 of Whenever contacting your local Grove distributor or EN 13000:2010+A1:2014. Manitowoc Crane Care have the serial number of the crane available. Vibration Level Test Results Serial Numbers are located at the following places on the •...
  • Page 13 GRT880 OPERATOR MANUAL INTRODUCTION FIGURE 1-2 Item Description Item Description Boom Nose Sheaves Fuel Tank* Boom Crane Steps Work Lights Hydraulic Valves and Swing Motor Cover Tilt Cab Auxiliary Boom Nose Windshield Washer Fluid Container Auxiliary Hoist Air Conditioning Condenser Main Hoist Counterweight Boom Pivot Pin...

  • Page 14: List Of Specifications

    INTRODUCTION GRT880 OPERATOR MANUAL LIST OF SPECIFICATIONS Engine Cummins QSB 6.7 Tier 3 General Type ... . .4 cycle, Diesel, Turbocharged Model ......GRT880 Number of Cylinders .

  • Page 15: Hydraulic Pumps

    GRT880 OPERATOR MANUAL INTRODUCTION Hydraulic Pumps Hoists Drum Dimensions NOTE: Pump output figures are theoretical. Diameter ....381 mm (15 in) Length (Standard) ..467 mm (18.38 in) Pump #1 Cable Type .
  • Page 16 INTRODUCTION GRT880 OPERATOR MANUAL THIS PAGE BLANK Published 3-25-2020, Control # 643-04...

  • Page 17: Section 2

    GRT880 OPERATOR MANUAL SAFETY INFORMATION SECTION 2 SAFETY INFORMATION SECTION CONTENTS Safety Messages......2-2 Maintenance.

  • Page 18: Safety Messages

    All damaged parts must be repaired or replaced as authorized CAUTION by your Grove distributor and/or Manitowoc Crane Care. Without the safety alert symbol, identifies hazards that could result in property damage if the message is ignored.

  • Page 19: Operator Information

    Fax: 717-593-5152 maintenance and repair of the crane. E-mail: product.safety@manitowoc.com OPERATOR QUALIFICATIONS OPERATOR INFORMATION Qualified person is defined as one who by reason of You must read and understand this Operator Manual and knowledge, training and experience is thoroughly familiar the Load Chart before operating your new crane.

  • Page 20: Operational Aids

    SAFETY INFORMATION GRT880 OPERATOR MANUAL An untrained operator subjects himself and others to death assure that repair or recalibration is accomplished as soon or serious injury. as is reasonably possible. If immediate repair or recalibration of an operational aid is not possible and there are You must not operate this crane unless: exceptional circumstances which justify continued short-term use of the crane when operational aids are inoperative or...

  • Page 21: Anti-Two-Blocking Device

    GRT880 OPERATOR MANUAL SAFETY INFORMATION upon these electronic aids in place of good operating Two-blocking can be prevented. Operator awareness of the practices can cause an accident. hazards of two-blocking is the most important factor in preventing this condition. An Anti-Two-Block System is Know the weight of all loads and always check the capacity intended to assist the operator in preventing dangerous two- of the crane as shown on the Load Chart before making...

  • Page 22: Crane Stability/Structural Strength

    SAFETY INFORMATION GRT880 OPERATOR MANUAL CRANE STABILITY/STRUCTURAL Before swinging the superstructure over the side when the outriggers are retracted, check for backwards stability under STRENGTH the sub-section titled Model Specific Information later in this To avoid death or serious injury, make sure that the crane is section.

  • Page 23: Load Charts

    GRT880 OPERATOR MANUAL SAFETY INFORMATION Work Site Prior to any operation, you must inspect the entire work site, including ground conditions, where the crane will travel and operate. Make sure that the surfaces will support a load greater than the crane’s weight and maximum capacity. Be aware of all conditions that could adversely effect the stability of the crane.

  • Page 24: Wind Speeds

    SAFETY INFORMATION GRT880 OPERATOR MANUAL Table 2-1 Beaufort Wind Scale Maximum Wind Speed Beaufort Visible Indicator Description km/h Number Effects of wind as observed on land Zero (0) Calm Calm; smoke rises vertically Smoke drift indicates wind direction. Leaves and wind vanes Light Air are stationary.
  • Page 25 GRT880 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 26 SAFETY INFORMATION GRT880 OPERATOR MANUAL Determination of 3-second wind gust speed at boom Size and Shape of the load: tip height: These rated capacities are also based on the assumption that the Wind Resistance Area of load, Awr is not more The following example illustrates how to calculate 3-second (load) wind gust speed at boom tip height based on mean wind...
  • Page 27 GRT880 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) Table 2-2 shows the typical Shapes and corresponding Wind...
  • Page 28 SAFETY INFORMATION GRT880 OPERATOR MANUAL Table 2-2 Wind Drag Coefficient Shape 1.1 to 2.0 0.3 to 0.4 0.6 to 1.0 0.8 to 1.2 0.2 to 0.3 0.05 to 0.1 Turbine Blade or Complete Rotor Approximately 1.6 8384-2 Maximum Permissible Wind Speed If the wind resistant area of the load Awr is greater than (load)
  • Page 29 GRT880 OPERATOR MANUAL SAFETY INFORMATION Rated Load Chart Example - Metric 8383-1 FIGURE 2-3 Grove 2-13 Published 3-25-2020, Control # 643-04...
  • Page 30 SAFETY INFORMATION GRT880 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 31 GRT880 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 32 SAFETY INFORMATION GRT880 OPERATOR MANUAL Refer to the above Lifting Limits at wind speed V(z) Ratio = 1.37 > 13.4 m/s and ≤ 20.1 m/s. Comparing the load and wind resistant area to the allowable: From Table 2-5, the maximum permissible wind speed at •...
  • Page 33 GRT880 OPERATOR MANUAL SAFETY INFORMATION Rated Load Chart Example - Non-metric 8382-1 FIGURE 2-4 Grove 2-17 Published 3-25-2020, Control # 643-04...
  • Page 34 SAFETY INFORMATION GRT880 OPERATOR MANUAL Table 2-6 Example-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 35 GRT880 OPERATOR MANUAL SAFETY INFORMATION Example, wind speeds greater than 13.4 m/s is NOT Load example 2.3a: permissible to lift a load greater than 20,160 lb, even if the With large wind resistance area of the load Awr (load) wind resistance area of the load is less than 119 ft •...

  • Page 36: Lifting Operations

    SAFETY INFORMATION GRT880 OPERATOR MANUAL Refer to the above Lifting Limits at wind speed V(z) Do not overload the crane by exceeding the capacities > 30 mph and ≤ 45 mph. Comparing the load and wind shown on the appropriate Load Chart. Death or serious resistant area to the allowable: injury could result from the crane tipping over or failing structurally from overload.

  • Page 37: Lifting Multiple Loads

    GRT880 OPERATOR MANUAL SAFETY INFORMATION Multiple Crane Lifts 1926.753(e)(2) Components of the multiple lift rigging assembly shall be specifically designed and assembled with Multiple crane lifts are not recommended. a maximum capacity for total assembly and for each Any lift that requires more than one crane must be precisely individual attachment point.

  • Page 38: Counterweight

    SAFETY INFORMATION GRT880 OPERATOR MANUAL Outrigger Lift Off • The anti-two-block system shall be installed and inspected to confirm that it is active to monitor both hoist Regarding “lifting” of an outrigger pad during craning lines. activities, be advised that the rated loads for these cranes, •...

  • Page 39: Crane Equipment

    GRT880 OPERATOR MANUAL SAFETY INFORMATION • The combined weight of the driver or extractor, piling, showing inspections were performed on the crane leads, attachments, etc., shall not exceed 80% of the during the time it was used for pile driving or extraction. published load chart values for on-outriggers operation.

  • Page 40: Set-Up And Operation

    SAFETY INFORMATION GRT880 OPERATOR MANUAL Crane operation is dangerous when close to an energized The safest way to avoid electrocution is to stay away from electrical power source. Exercise extreme caution and electrical power lines and electrical power sources. prudent judgement. Operate slowly and cautiously when in It is not always necessary to contact a power line or power the vicinity of power lines.

  • Page 41: Electrocution Hazard Devices

    GRT880 OPERATOR MANUAL SAFETY INFORMATION boom nose and a small portion of the boom. Performance of boom cages and boom guards is limited by their physical size, insulating characteristics, and operating environment (e.g. dust, dirt, moisture, etc.). The insulating characteristics of these devices can be compromised if not kept clean, free of contamination, and undamaged.

  • Page 42: Special Operating Conditions And Equipment

    Thoroughly inspect the hoist rope and all points of stations, etc.) contact on the crane. Should the dealer not be immediately available, contact Manitowoc Crane Care. The crane must • Near high-frequency switching stations not be returned to service until it is thoroughly inspected for •...

  • Page 43: Personnel Handling

    GRT880 OPERATOR MANUAL SAFETY INFORMATION PERSONNEL HANDLING • The crane operator and occupants have been instructed in the recognized hazards of personnel platform lifts. The American Society of Mechanical Engineers published • The crane is in proper working order. the American National Standard entitled, Personnel Lifting Systems, ASME B30.23: •...

  • Page 44: Environmental Protection

    SAFETY INFORMATION GRT880 OPERATOR MANUAL The following standards and regulations regarding personnel Always perform a function check after repairs have been handling are available by mail at the following addresses: made to ensure proper operation. Load tests should be performed when structural or lifting members are involved. •...

  • Page 45: Lubrication

    To relieve hydraulic pressure, stop the engine, turn the ignition switch to RUN and move the • Consult with Manitowoc Crane Care to determine if load hydraulic controls in both directions several times. testing is required after a structural repair is performed.

  • Page 46: Hoist Rope

    Hoist rope may be purchased by contacting • If an operator hoists the hook block up or down too fast Manitowoc Crane Care. when reeved with multiple parts of line and no hook load, the wire rope can bird cage and damage the rope.
  • Page 47 GRT880 OPERATOR MANUAL SAFETY INFORMATION ASME and similar organizations. See the Service Broken wires; number and location. Manual for inspection procedures. Reduction in diameter. When inspecting ropes and attachments, keep all parts Rope stretch (elongation). of your body and clothing away from rotating hoist drums and all rotating sheaves.

  • Page 48: Sheaves

    SAFETY INFORMATION GRT880 OPERATOR MANUAL Batteries When using a wedge socket • Always inspect socket, wedge, and pin for correct size Battery electrolyte must not be allowed to contact the skin or and condition. eyes. If this occurs, flush the contacted area with water and consult a doctor immediately.

  • Page 49: General Maintenance

    GRT880 OPERATOR MANUAL SAFETY INFORMATION Remove the ECM power fuse. Remove negative battery cables. Remove positive capacitor cable. • Do not short across the capacitor posts to check charge. Short circuit will cause capacitor terminal damage. Spark or flame could cause capacitor explosion. •...
  • Page 50 SAFETY INFORMATION GRT880 OPERATOR MANUAL Before traveling a crane, check suitability of proposed route with regard to crane height, width, and length. WARNING Never back up without the aid of a signal person to verify the Crushing Hazard! area behind the crane is clear of obstructions and/or personnel.

  • Page 51: Work Practices

    GRT880 OPERATOR MANUAL SAFETY INFORMATION Slopes Do not walk on a surface if slip-resistant material is missing or excessively worn. Pick and carry on level surfaces only. Do not use the top of the boom as a walkway. Refer to the Operation Section for more detailed information on traveling on slopes.

  • Page 52: Working

    SAFETY INFORMATION GRT880 OPERATOR MANUAL Working Operate the crane only from the operator’s seat. Do not reach in a window or door to operate any controls. Operator shall be responsible for all operations under his/her Operate the crane slowly and cautiously, looking carefully in direct control.

  • Page 53: Hand Signals

    GRT880 OPERATOR MANUAL SAFETY INFORMATION Make sure good rigging practices are being used. Refuse to Do not subject crane to side loading. A side load can tip the use any poorly maintained or damaged equipment. Never crane or cause it to fail structurally. wrap the hoist cable around a load.
  • Page 54 SAFETY INFORMATION GRT880 OPERATOR MANUAL FIGURE 2-10 8496-3 2-38 Published 3-25-2020, Control # 643-04...

  • Page 55: Boom Extension

    GRT880 OPERATOR MANUAL SAFETY INFORMATION BOOM EXTENSION that it is not practical to lower the boom to the ground, we recommend the following additional instructions be followed: To avoid death or serious injury, follow the procedures in this • The crane should be left in the smallest, most stable, m a n u a l d u r i n g e r e c t i o n , s t o w a g e , a n d u s e o f t h e valid operational configuration that the job site boom extension.

  • Page 56: Temperature Effects On Hook Blocks

    SAFETY INFORMATION GRT880 OPERATOR MANUAL caution handling and operating these components in sub- The change in the length of a cylinder is proportional to the zero temperatures, avoiding shock loading. extended length of the cylinder and to the change in temperature of the oil in the cylinder.
  • Page 57 GRT880 OPERATOR MANUAL SAFETY INFORMATION 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 58: Model Specific Information

    Perform the inspections outlined in this publication for overloads up to 50%. Travel Position • Stop operating the crane and contact Manitowoc Hoist platform must be in the travel position when moving the crane. Refer to Figure 2-11. Crane Care immediately for overloads of 50% and higher.

  • Page 59: Boom Inspection

    GRT880 OPERATOR MANUAL SAFETY INFORMATION Boom Inspection 9, 10 3, 4 9, 10 Illustration for reference only. Your crane may be different. Grove 2-43 Published 3-25-2020, Control # 643-04...
  • Page 60 SAFETY INFORMATION GRT880 OPERATOR MANUAL NOTE: The following checklist includes all features that can be found on Grove cranes. Your crane may not have some features. Overload less than 25% Sheaves Inspect all for damage. Luffing Mechanism/ Inspect for damage/leaks. Cylinder Collar-wear Inspect all for damage.

  • Page 61: Superstructure Inspection

    GRT880 OPERATOR MANUAL SAFETY INFORMATION Superstructure Inspection 9, 10 Illustration for reference only. Your crane may be different. Grove 2-45 Published 3-25-2020, Control # 643-04...
  • Page 62 SAFETY INFORMATION GRT880 OPERATOR MANUAL NOTE: The following checklist includes all features that can be found on Grove cranes. Your crane may not have some features. Overload less than 25% Lift Cylinder Inspect for leaking. Turntable See topic in Swing section of Check bolts for proper torque.

  • Page 63: Carrier Inspection

    GRT880 OPERATOR MANUAL SAFETY INFORMATION Carrier Inspection 5, 6 Illustration for reference only. Your crane may be different. Grove 2-47 Published 3-25-2020, Control # 643-04...
  • Page 64 SAFETY INFORMATION GRT880 OPERATOR MANUAL NOTE: The following checklist includes all features that can be found on Grove cranes. Your crane may not have some features. 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.
  • Page 65 GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES SECTION 3 OPERATING CONTROLS AND PROCEDURES SECTION CONTENTS Controls and Indicators ..... 3-2 Boom Telescope Enable Switch .

  • Page 66: Controls And Indicators

    OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL Turntable Swing Lock Pin Control ... . 3-17 Radius Limitation ......3-44 Menu Control.

  • Page 67: Turn Signal Lever And Windshield Wiper/Washer/Headlight/Horn Controls

    GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Rotate joystick (2) Figure 3-2 down to lock steering column in place. Rotating lever up releases steering column for adjustment. Park Brake Control Switch CAUTION Avoid Crane Damage! Do not engage the parking brake while the vehicle is moving.

  • Page 68: Engine Speed (Rpm) Increase/Decrease Switch

    OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL Engine Speed (RPM) Increase/Decrease lever up actuates forward and positioning the lever down actuates reverse. When the lever is in neutral, it rests in a Switch detent. To move the lever up or down, pull up on the lever The Engine Speed Increase/Decease Switch (7) (Figure 3-2) first.

  • Page 69: Skylight Wiper And Wiper Motor

    GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Skylight Wiper and Wiper Motor Skylight Wiper Switch The Skylight Wiper (2) (Figure 3-3) is controlled by the The electrically-operated Skylight Wiper is installed to Skylight Wiper Switch, (4) (Figure 3-4), and operated by the remove moisture from the skylight.

  • Page 70: Exhaust System Cleaning

    OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL The Engine DPF (Diesel Particulate Filter) Switch (8) Make sure crane and surrounding area are monitored during Figure 3-4 is located on the right side of the overhead control manual cleaning. If any unsafe condition occurs, shut off panel.

  • Page 71: Diesel Exhaust Fluid (Tier 4 Engines Only)

    GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Inhibit Exhaust System Cleaning CAUTION The Inhibit Exhaust System Cleaning Indicator (25) is located in the CCS display Figure 3-14. When the Cleaning Engine Damage Hazard! Switch (8) Figure 3-4 is in the exhaust system cleaning Ultra low sulfur diesel fuel is required in Tier 4 engines.

  • Page 72: Control Seat Assembly - Dual Axis Joysticks

    OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL CONTROL SEAT ASSEMBLY - DUAL AXIS JOYSTICKS FIGURE 3-6 8044-2 Item Description Item Description AC/Heater Vents Boom Lift/Main Hoist Joystick Swing/Telescope or Swing/Auxiliary Hoist Seat Frame Slide Lever Joystick Main Hoist Enable Switch Armrest Adjustment Button(s) (Underside) Boom Up Bypass Seat Height Adjustment Lever...

  • Page 73: Boom Lift/Main Hoist Joystick (Dual Axis)

    GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Boom Lift/Main Hoist Joystick (Dual Axis) The following indicators illuminate to indicate the limiter is bypassed: The Boom Lift/Main Hoist Joystick (1) Figure 3-6 is located • Bypass 2 Pressed indicator is on (only when switch is on the right armrest.

  • Page 74: Auxiliary Hoist Enable Switch

    OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL Limit Bypass Switch (Non-CE Certified right. Pressing top of switch actuates a control valve to turn rear wheels to the right, causing crane to turn to the left. Cranes) When wheels are not centered, the Wheels Not Centered icon on the CCS Operating Display illuminates.

  • Page 75: Limit Bypass Switch (Ce Certified Cranes)

    GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES • RCL Bypass Active Indicator is on Turn key switch counterclockwise and release to bypass the following limiter systems and their craning function lockouts: • RCL Bypass Status Indicator is on • RCL system (boom up/down, telescope extend, hoist •...

  • Page 76: Emergency Stop Switch

    OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL Emergency Stop Switch Horn Button The crane Emergency Stop Switch (20) (Figure 3-6) is The Horn Button (24) (Figure 3-6) is located on the upper located on the cab right console and is used to shut down the front of the right joystick.

  • Page 77: Control Seat Assembly - Single Axis Joysticks

    GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES CONTROL SEAT ASSEMBLY - SINGLE AXIS JOYSTICKS Item Description Main Hoist Joystick, Raise/Lower Boom Lift Joystick Boom Telescope or Auxiliary Hoist Joystick Swing Joystick 8886 FIGURE 3-7 Main Hoist Control (Single Axis Option) controlled through a foot pedal.

  • Page 78: Foot Pedal Controls

    OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL FOOT PEDAL CONTROLS Telescope Control Pedal (Optional) The Telescope Control Pedal (4) (Figure 3-8) is located in the middle of the cab floor. Pushing top of pedal extends the boom. Pushing bottom of pedal retracts the boom. Service Brake Pedal The Service Brake Pedal (5) (Figure 3-8) is the second pedal from the right on the cab floor.

  • Page 79: Limit Bypass Switch (Non-Ce Certified Cranes)

    GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Limit Bypass Switch (Non-CE Certified Overriding the RCL with this switch should only be done in an emergency. Cranes) NOTE: Before powering up crane, ensure Limit Bypass Switch is in the Normal (not Override) position to avoid an error code.

  • Page 80: Rcl Internal Light Bar (Optional)

    OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL RCL Internal Light Bar (Optional) • Carrier Avoidance System • -29°C Temperature Limiter System (optional) The Rated Capacity Limiter (RCL) Internal Light Bar is located on the upper left hand corner of the crane cab. The The following indicators illuminate to indicate the limiters are RCL is an operational aid that warns a crane operator of bypassed:...

  • Page 81: Crane Control System (Ccs)

    GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES CRANE CONTROL SYSTEM (CCS) Item Description Internal Temperature Warning Indicator The Crane Control System (CCS) consists of a cab electronic control unit and several other electronic control Turntable Swing Lock Pin Control Handle units located on the superstructure and carrier.

  • Page 82: Ccs Main Screen Symbols And Icons

    OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL CCS Main Screen Symbols and Icons FIGURE 3-14 Item Description Item Description Transmission Temperature Engine Warning Indicator Fuel Level High Hydraulic Oil Temperature Battery Voltage Low Brake Pressure Engine Speed (Tachometer) System Fault Engine Coolant Temperature Boom Angle Too Low (Optional) Diesel Exhaust Fluid (Optional)

  • Page 83: Ccs Menu Screen

    GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES CCS Menu Screen 8966-1 FIGURE 3-15 Item Description Item Description Menu Screen Indicator WRL Virtual Walls Limit Status Indicator Bar Tools Group Active Screen Indicator Display Brightness Settings Outrigger Group Imperial/Metric Measurement Selection Outrigger Button Joystick Settings Telescoping Menu...

  • Page 84: Ccs Operation Display

    OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL CCS Operation Display Menu Screen When menu button on the jog dial (3) (Figure 3-13) or control There are three different levels: panel of the CCS is pressed, an overview of menu groups Main Screen displays.

  • Page 85: Rated Capacity Limiter (Rcl) System

    GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES RATED CAPACITY LIMITER (RCL) SYSTEM Mode of Operation The Rated Capacity Limiter (RCL) is an electro-mechanical Rigging options on this screen select static rubber, pick and sensing system designed to alert the crane operator of carry, or outrigger configuration.

  • Page 86: Outrigger Operation Menu

    OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL Outrigger Operation Menu Raise Jacks Spin jog dial clockwise and press OK button to select and For choosing options during rigging. This is the only function choose jack operation. Press lower side of Outrigger w h e r e t h e m e n u b u t t o n ( 3 ) ( F i g u r e 3 -1 3 ) w i l l n o t Function Enable Switch on the left armrest to enable jack automatically navigate directly to the menu screen.

  • Page 87: Telescope Operation Menu

    GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Toggle counterclockwise and select Menu icon to exit this Press Escape button (1) (Figure 3-13) to leave menu and group return to CCS main screen. The operator can now navigate to the RCL screen. 8966-2 CAUTION Telescope Operation Menu...
  • Page 88 OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL RCL Display Setup Screens RCL Display Operating Screen Te l e s c o p i n g M o d e c h a n g e r e q u i r e s r i g g i n g c o d e Confirmed Telescoping Mode confirmation.
  • Page 89 GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Telescoping Menu Screens Operating Display In Sequence - except Mode M T1 (1) and T2-3 (2) buttons are grayed out in automatic Display T1 (1) and overall lengths (2). mode B. Buttons only selectable in mode M. Display all section percentages (3).

  • Page 90: Rcl Setup Wizard

    CCS screen will be illuminated in red. NOTE: If the RCL is not working correctly, do not start work with the crane but notify Manitowoc Crane Care. 3-26 Published 3-25-2020, Control # 643-04...
  • Page 91 GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Set Counterweight Set Boom When rigging is complete, toggle clockwise to exit the Turn jog dial clockwise to set boom, including aux nose and outrigger position and move on to setting the counterweight. reeving options.
  • Page 92 OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL Set Boom Extension Angle (if installed) Reeving Selection Turn jog dial clockwise to program the boom extension angle Turn jog dial clockwise to select the icon for reeving options. after length is selected. Press ENTER a second time and turn dial to change reeving number options.

  • Page 93: Switch To Rcl Home Screen Display

    GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Switch to RCL Home Screen Display RCL Display Operating Screen: Tare Function Press Screen Toggle button (4) (Figure 3-13) on the Jog Dial menu control to switch to the RCL main menu screen. By default, the Tare Function is not displayed on the RCL.

  • Page 94: Ccs Working Range Limiter (Wrl)

    OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL CCS WORKING RANGE LIMITER (WRL) present. In particular, it must be noted that the swing function has a coasting or free-swing Introduction characteristic that will not be affected by the slow- down and lockout of the swing function. As such, The Working Range Limiter (WRL) is a feature of the crane swing speeds are to be no more than 1 degree of control system that allows for the definition of obstacles or...
  • Page 95 GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES WRL Limitation is Enabled indicator on Main Screen (green background for symbol) 8797 FIGURE 3-16 When a limitation is active, the Main Screen shows an radius limitation active symbol; the swing limitation active indicator for the limitation (in addition to audible alarms and symbol;...
  • Page 96 OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL Height Limitation is Active indicator on Main Screen (amber-colored background for symbol) 8797-1 FIGURE 3-17 3-32 Published 3-25-2020, Control # 643-04...
  • Page 97 GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES When a limitation is active, audible alarms are generated. TABLE 3-1: Active Indicator Symbols Table 3-2: indicates the behavior of the audible alarm for the various limitations when the WRL is configured to only have Symbol Description an alarm (not lockout).
  • Page 98 OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL Table 3-2: Alarm Characteristics LIMITATION POSITION ALARM Height Limitation 10 ft before limit Slow beeping 5 ft before limit Fast beeping At limit Solid sound Boom Up/Down 10 deg before limit Slow beeping 5 deg before limit Fast beeping At limit...
  • Page 99 GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Item Description Tab Button OK Button FIGURE 3-18 8797-6 Swing Limit has been Reached indicator on Main Screen (red color for symbol) 8797-7 FIGURE 3-19 Grove 3-35 Published 3-25-2020, Control # 643-04...
  • Page 100 OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL Table 3-3: Limit Reached Indicator Symbols Symbol Description Swing Limit has been reached indicator symbol (red). Boom Up/Down Limit has been reached indicator symbol (red). Radius Limit has been reached indicator symbol (red). Height Limit has been reached indicator symbol (red).

  • Page 101: Accessing Limitation Screens

    GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Accessing Limitation Screens limitations are shown as a group, and one of the limitations can then be selected to work with that limitation screen. This Each of the limitations for the WRL has a screen on the WRL sub-menu is highlighted in Figure 3-20 with an ellipse display for the enabling and definition of the limitation.

  • Page 102: Height Limitation

    OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL Height Limitation If the Height Limitation is selected from the menu of WRL limitations, then the Height Limitation Screen will be shown (Figure 3-21). Height Limitation Screen 8797-13 FIGURE 3-21 Using the Left Arrow and Right Arrow function on the display or the jog dial changes the object highlighted on the screen.
  • Page 103 GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Table 3-4: Screen Symbols Symbol Description Lockout symbol - this symbol indicates the selection for affecting crane functions (lockout) or just alarm/warning. This symbol will not appear if the WRL is not configured for the lockout option. Furthermore, in some countries, regulations may require the use of the lockout configuration, and lockout will always be enabled (so it may not be able to change from lockout to alarm/warning).
  • Page 104 OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL enabled (note that based on past limitation settings, Use the Right Arrow function once to highlight the alarms may begin at this point). Limitation Value. Use an OK button to begin entering the value.

  • Page 105: Boom Up/Down Limitation

    GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Boom Up/Down Limitation If the Boom Up/Down Limitation is selected from the menu of WRL limitations, then the Boom Up/Down Limitation Screen will be shown (Figure 3-22). Boom Up/Down Limitation Screen 8797-23 FIGURE 3-22 Using the Left Arrow and Right Arrow function on the display or the jog dial changes the object highlighted on the screen.
  • Page 106 OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL Table 3-5: Screen Symbols Symbol Description Lockout symbol - this symbol indicates the selection for affecting crane functions (lockout) or just alarm/warning. This symbol will not appear if the WRL is not configured for the lockout option. Furthermore, in some countries, regulations may require the use of the lockout configuration, and lockout will always be enabled (so it may not be able to change from lockout to alarm/warning).
  • Page 107 GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES enabled (note that based on past limitation settings, Use the Right Arrow function to skip the Boom Up alarms may begin at this point). Limitation symbols and then highlight the Boom Down Enable symbol (refer to Table 3-5:). Use the Right Arrow function once to highlight the upper boom angle Accept Crane Position symbol (refer to Use an OK button (item 2, Figure 3-18) to set the symbol...

  • Page 108: Radius Limitation

    OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL Radius Limitation If the Radius Limitation is selected from the menu of WRL limitations, then the Radius Limitation Screen will be shown (Figure 3-23). Radius Limitation Screen 8797-27 FIGURE 3-23 Using the Left Arrow and Right Arrow function on the display or the jog dial changes the object highlighted on the screen.
  • Page 109 GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Table 3-6: Screen Symbols Symbol Description Lockout symbol - this symbol indicates the selection for affecting crane functions (lockout) or just alarm/warning. This symbol will not appear if the WRL is not configured for the lockout option. Furthermore, in some countries, regulations may require the use of the lockout configuration, and lockout will always be enabled (so it may not be able to change from lockout to alarm/warning).
  • Page 110 OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL Inner Radius Limitation Procedure by Crane Position the crane to have the desired position. Position The Radius Limitation Screen (Figure 3-23) is to be shown on the display. To define and enable the Inner Radius Limitation using the crane current hook radius as the limitation, the following Use the Left Arrow and/or Right Arrow function to steps can be used:...

  • Page 111: Swing Limitation

    GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Swing Limitation If the Swing Limitation is selected from the menu of WRL limitations, then the Swing Limitation Screen will be shown (Figure 3-24). Swing Limitation Screen 8797-33 FIGURE 3-24 Using the Left Arrow and Right Arrow function on the display or the jog dial changes the object highlighted on the screen.
  • Page 112 OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL Table 3-7: Screen Symbols Symbol Description Lockout symbol - this symbol indicates the selection for affecting crane functions (lockout) or just alarm/warning. This symbol will not appear if the WRL is not configured for the lockout option. Furthermore, in some countries, regulations may require the use of the lockout configuration, and lockout will always be enabled (so it may not be able to change from lockout to alarm/warning).
  • Page 113 GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Swing Limitation Procedure by Crane current swing angle to cease the alarm. Refer to Table 3- 2: for how the alarm performs when the lockout option is Position not used. Refer to Figure 3-18 for the button to cancel an To define and enable the Swing Limitation using the crane audible alarm (once boom motion has stopped).

  • Page 114: Wall Limitation

    OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL Wall Limitation If the Wall Limitation is selected from the menu of WRL limitations, then the Wall Limitation Screen will be shown (Figure 3-25). Wall Limitation Screen with 2 Virtual Walls already active 8797-33 FIGURE 3-25 Using the Left Arrow and Right Arrow function on the display...
  • Page 115 GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Table 3-8: Screen Symbols Symbol Description Lockout symbol - this symbol indicates the selection for affecting crane functions (lockout) or just alarm/warning. This symbol will not appear if the WRL is not configured for the lockout option. Furthermore, in some countries, regulations may require the use of the lockout configuration, and lockout will always be enabled (so it may not be able to change from lockout to alarm/warning).
  • Page 116 OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL First Virtual Wall Procedure Number on the display increments to 2 so that it is ready to define a subsequent virtual wall, if so desired. To define and enable the first Virtual Wall (assuming no Virtual Walls are already defined), the following steps can be Subsequent Virtual Wall Procedure used:...

  • Page 117: Economy Mode

    GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Wall Limitation Disable Procedure i n c r e a s e t h e t h r o t t l e c o m m a n d f r o m i d l e t o a predetermined throttle command defined by the To disable the active Wall Limitation, the following steps can operator.

  • Page 118: Operation

    OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL E C O m o d e i s f o r c e d t o i n a c t i v e w h e n t h e c r a n e ' s •...
  • Page 119 GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Crane Control System (CCS) Symbols and Icons Symbol Description Symbol Description 3rd Wrap Warning Bypass 3 Pressed 4-Wheel Drive Coolant Temp Auxiliary Hoist Status Differential Lock Auxiliary Hoist Disabled Engine Preheat Auxiliary Hoist Enabled Engine Speed (RPM) Auxiliary Hoist Raise Engine Warning (Error)
  • Page 120 OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL Symbol Description Symbol Description Low Brake Pressure Park Brake Low Steering Fluid Pressure RCL Override Main Hoist Status Status Light Bar Error Main Hoist Disabled Swing Status Main Hoist Enabled Swing Brake Main Hoist Raise Swing Group Main Hoist Not In Use SLI Early Warning...
  • Page 121 GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Symbol Description Symbol Description WRL Height Limit WRL Swing Angle Limit WRL Radius Limit Grove 3-57 Published 3-25-2020, Control # 643-04...

  • Page 122: Operating Procedures

    OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL OPERATING PROCEDURES Hook Block and Overhaul Ball Inspect for nicks, gouges, cracks, and evidence of any other Pre-Starting Checks damage. Replace a hook that has cracks or shows evidence of excessive deformation of the hook opening (including A complete walk-around visual inspection of the crane twist).

  • Page 123: Cold Weather Operation

    If in doubt of suitability for a specific fluid or lubricant, check temperatures between -9°C and -40°C (15°F and -40°F) or with an authorized Grove distributor or Manitowoc Crane lower should be accomplished only by competent operators Care. Cranes should have appropriate hydraulic oil, who possess the skill, experience, and dexterity to ensure smooth operation.
  • Page 124 This can be done by installing an air pressure hydraulic reservoir heater are heating properly. sensor kit (Grove part number 90037674). Contact an authorized Grove distributor or Manitowoc Crane Care for To deactivate heater, push button at heater control panel. additional assistance.

  • Page 125: Crane Warm-Up Procedures

    Press black button located on top of capacitor: contacting your local Grove distributor, or by contacting • If light flashes green, capacitor is charging and may not Manitowoc Crane Care directly). successfully start machine. CAUTION • If light is solid green, capacitor is charged and ready for starting.
  • Page 126 OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL Engine Swing Drive and Turntable Bearing Warm-up Procedures for All Temperature Ranges: Warm-up Procedures for Temperatures Above -7°C (20°F): After starting, allow engine to idle for 3 to 5 minutes before operating with a load. Setup crane on fully extended outriggers, with boom fully retracted and near maximum lift angle with no load Cold Engine Startup: After allowing engine to warm by...

  • Page 127: Engine Operation

    GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES • From 95°C to 10°C (200°F to 50°F): Crane operation Start-Up Procedure with a load is allowed with no restrictions. Make an under-the-hood inspection for fuel, oil, and coolant Above 95°C (200°F): No crane operation is allowed. Let leaks, worn drive belts, and trash build-up.

  • Page 128: Crane Travel Operation

    OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL Cold Engine Shutdown Procedure Engine warning and engine stop indicators illuminate and go Allow engine to run at fast idle speed for about five off in sequence after about two seconds (as a check) when minutes to avoid high internal heat rise and allow for key is first turned on.
  • Page 129 GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Traveling — General CAUTION Machine Damage Hazard! WARNING Do not travel with an empty hook in a position where it can Inadvertent Operation Hazard! swing freely (except where noted). Remove hook block Before traveling, ensure crane functions are fully and/or overhaul ball from hoist cable(s) and stow securely disabled.
  • Page 130 OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL Traveling — Towing/Pulling Traveling — Being Towed/Pulled Grove recommends connecting to a pintle hook (if equipped) CAUTION or evenly attaching to the tie-down lugs when being towed by Machine Damage Hazard! another vehicle. Grove recommends towing or pulling another vehicle with the optional pintle hook (if equipped) or by attaching at a point no higher than the pintle hook height, or severe...
  • Page 131 GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES • Limit travel to a forward direction only. • Never exceed a fore-to-aft slope of 30% (16°). • Do not exceed a speed of 1.6 km/h (1 mph). • For slope limitations when traveling with an elevated boom, an erected boom extension and inserts, or a •...
  • Page 132 OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL • Hook block may be reeved over the main boom nose. • Hookblock must be removed from main boom nose. Overhaul ball may be reeved over the main boom nose • Overhaul ball may be reeved over boom extension, or a uxiliary b oom nos e.
  • Page 133 GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Traveling — Forward Traveling — Reverse Traveling in reverse is similar to traveling forward, except for CAUTION shifting Transmission Shift Lever to reverse (R). Refer to Machine Damage Hazard! Traveling — Forward, page 3-69. Engage turntable lock pin for extended travel.
  • Page 134 OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL permits driving crane forward or backward in a crabbing must be pressed and Transmission Shift Lever must be in Neutral (N) position to shift from four-wheel low to two- manner. wheel high. Differential Lock Operation (Optional) CAUTION Unexpected Operation! When using differential lock, steering characteristics may...

  • Page 135: General Crane Operation

    GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Lock differentials only when maximum traction is Ensure tires are inflated to recommended pressure. needed on poor road or highway surfaces. Refer to Load Chart Book in the crane cab for proper inflation pressures. With hook unloaded, boom fully retracted and centered CAUTION over the front at no more than a 10°...
  • Page 136 OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL • Extend and set outriggers and level crane. The load chart contains crane lifting capacities in all allowable lifting configurations and must be thoroughly • Raise, lower, and swing boom right and left at least 45 understood by the operator.

  • Page 137: Level Indicator Adjustment

    GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Level Indicator Adjustment the load. Weight of any other load handling devices such as chains, slings, or spreader bars must also be added to the The Level Indicator should be checked periodically; if it is weight of the load.
  • Page 138 OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL After deploying the four outrigger beams to fully NOTE: The crane also allows operations with outriggers retracted, mid-extend, or fully extended positions, fully retracted. Reference the load chart for navigate to Jack Operation on the CCS screen. Select capacities.
  • Page 139 GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES not lock out the crane or select a different chart based on Release locking levers and allow outrigger pads to drop outrigger position. to the ground. Continue to retract jacks until fully retracted. Engaging the Mid Extend Lock Pin Use screen buttons or jog dial with Outrigger Function NOTE:...
  • Page 140 OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL Swinging Superstructure To elevate boom, activate Lift Enable Switch, push controller on right hand armrest to the left (raises boom), and hold until boom reaches desired elevation. Lowering Boom DANGER Crushing Hazard! Death or serious injury could result from being crushed by DANGER moving machinery.
  • Page 141 GRT880 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES Extending Boom Lower Cable Turn on Hoist Enable Switch. Push main hoist (right hand armrest) or auxiliary hoist (left hand armrest) controller DANGER forward, away from operator. Hold until hook or load is lowered to desired height.

  • Page 142: Stowing And Parking

    OPERATING CONTROLS AND PROCEDURES GRT880 OPERATOR MANUAL Stowing and Parking Apply parking brakes and if necessary, chock wheels. Ensure all operating controls are in neutral position. When parking crane, do the following: 10. Shut down engine following proper procedures specified in this Operator Manual and applicable engine manual.

  • Page 143: General

    GRT880 OPERATOR MANUAL SET-UP AND INSTALLATION SECTION 4 SET-UP AND INSTALLATION SECTION CONTENTS General ........4-1 Erecting Boom Extension .

  • Page 144: Working Position

    SET-UP AND INSTALLATION GRT880 OPERATOR MANUAL Working Position Place cable (1) over boom nose sheave and route to hoist drum (2). Refer to Figure 4-2. Rotate hoist drum so cable slot located on left side of Lift and pull out steps (4) until they hang vertically from drum is easily accessible.

  • Page 145: Anti-Two-Block (A2B) Switch

    GRT880 OPERATOR MANUAL SET-UP AND INSTALLATION ANTI-TWO-BLOCK (A2B) SWITCH If a hoist rope has been reeved and two A2B switches are installed, the unused A2B switch must be locked (disabled) to allow all crane operations. Locking CAUTION If the A2B switch is locked (disabled), the hook block could hit the main boom head or extension, resulting in damage to the hook block, main boom head or extension, and hoist rope.
  • Page 146 SET-UP AND INSTALLATION GRT880 OPERATOR MANUAL Machines with Main and Auxiliary Hoists Check Hoist limit switch warning light and acoustic alarm as follows: If the main boom extension or fly section is not used, then the Manually raise weight fitted on the A2B switch. As soon bridging plug must be plugged into the distributor socket on as weight is raised, the acoustic alarm should sound and the main boom and the lifting limit switch weight must be...

  • Page 147: Cable Reeving

    If there are any questions, contact your local Grove distributor or Manitowoc Crane Care Do not mix components from different manufacturers. The selection, installation, and use of a wedge socket assembly...

  • Page 148: Installing Wedge And Socket

    SET-UP AND INSTALLATION GRT880 OPERATOR MANUAL Live End Dead End 5337 Incorrect FIGURE 4-8 Correct FIGURE 4-9 When anchoring socket to the boom, ensure flat face of Insert wire rope end in socket, form a loop in the rope, socket is toward boom sections as shown in Figure 4-8. and route rope back through socket allowing the “dead”...
  • Page 149 GRT880 OPERATOR MANUAL SET-UP AND INSTALLATION Figure 4-10 shows methods for securing dead-ends of wire Mechanical Engineers, American National Standard, ASME ropes in a wedge socket assembly. While the loop-back B30.5, latest revised. ASME (formerly ANSI) B30.5 applies method (C, D, E) is acceptable, take care to prevent the loop to cableways, cranes, derricks, hoists, hooks, jacks, and b ec o m i n g e n ta n g l e d w i t h t r e e br a nc h e s a nd o t he r slings.
  • Page 150 SET-UP AND INSTALLATION GRT880 OPERATOR MANUAL Upper Boom Nose Sheaves Bottom Boom Nose Sheaves Ball SINGLE PART LINE 8974 0° OFFSET 40° OFFSET 20° OFFSET 8643-2 8643-3 SINGLE PART LINE USING BOOM EXTENSION FIGURE 4-11 Published 3-25-2020, Control # 643-04...
  • Page 151 GRT880 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 Upper Boom To Main Hoist Nose Sheaves Bottom Boom Hookblock Nose Sheaves Sheaves Boom Nose Dead End TEN PARTS LINE FIGURE 4-11 continued...
  • Page 152 SET-UP AND INSTALLATION GRT880 OPERATOR MANUAL To Main Hoist Aux Boom Nose Bottom Boom Nose Sheaves Boom Nose Hookblock Dead End Sheaves ELEVEN PARTS LINE To Main Hoist Aux Boom Nose Bottom Boom Nose Sheaves Boom Nose Dead End Hookblock Sheaves TWELVE PARTS LINE FIGURE 4-11 continued...

  • Page 153: Bi-Fold Swingaway, Off-Settable Boom Extension

    GRT880 OPERATOR MANUAL SET-UP AND INSTALLATION BI-FOLD SWINGAWAY, OFF-SETTABLE BOOM EXTENSION Description A 10 m to 17 m (33 ft to 56 ft) bi-fold swingaway, manual off-settable boom extension provides additional boom reach. FIGURE 4-12 The boom extension weighs approximately 1,102 kg (2,430 lb).
  • Page 154 SET-UP AND INSTALLATION GRT880 OPERATOR MANUAL 12. Using control pendant, extend middle stowage bracket (10, Figure 4-20) until boom extension base section anchor fittings align with boom nose attachment fittings. 13. Remove attachment pins from stowage lugs on right side of boom extension base section and install into upper and lower right anchor and attachment fittings of the boom extension base section and boom nose.

  • Page 155: Erecting Boom Extension Fly Section

    GRT880 OPERATOR MANUAL SET-UP AND INSTALLATION 25. Connect anti-two block cable(s). Refer boom extension fly section, swing it in front of the boom Connecting Disconnecting Boom Extension, extension base section until boom extension fly section page 4-21. attachment fittings engage with the left side boom extension base section anchor fittings.
  • Page 156 SET-UP AND INSTALLATION GRT880 OPERATOR MANUAL cable. Reinstall cable retaining pins and secure with 12. Attach rope to boom extension base section tip. clip pins. 13. Raise boom to horizontal. Stow mast assembly: 14. Extend boom approximately 12 in so boom extension Remove pin from the upright position lug of the mast base section stowage lugs will line up in front of the assembly.
  • Page 157 GRT880 OPERATOR MANUAL SET-UP AND INSTALLATION 20. Slightly raise or lower boom to help control the boom 27. Ensure the two stowage lugs on the boom extension extension base section swing. Using rope attached to tip base section are fully engaged with the pins of the boom extension base section, swing boom (14, Figure 4-20) front...

  • Page 158: Setting Boom Extension Manual Offset

    SET-UP AND INSTALLATION GRT880 OPERATOR MANUAL Setting Boom Extension Manual Offset offset stow in the stowage lug. If going to intermediate (20°) offset, install in offset hole for that degree of offset. Reeve hoist cable as described under normal erecting DANGER procedures.
  • Page 159 GRT880 OPERATOR MANUAL SET-UP AND INSTALLATION 8897 FIGURE 4-20 Grove 4-17 Published 3-25-2020, Control # 643-04...
  • Page 160 SET-UP AND INSTALLATION GRT880 OPERATOR MANUAL 8897 FIGURE 4-20 continued 4-18 Published 3-25-2020, Control # 643-04...

  • Page 161: Erecting And Stowing Bi-Fold Boom Extension With 6 M (20 Ft) Insert

    GRT880 OPERATOR MANUAL SET-UP AND INSTALLATION Item Description Item Description Boom Extension Fly Section Rear Stowage Offset Link Bracket Assembly Boom Extension Fly Section Boom Extension Locking Bar Boom Extension Fly Section Front Stowage Middle Stowage Bracket and Actuator Assembly Ramp Assembly Boom Extension Fly Section Sheave Boom Extension Base Section...
  • Page 162 SET-UP AND INSTALLATION GRT880 OPERATOR MANUAL 18. Slowly elevate boom and remove blocking from under 20. Rig hoist cable. Insert and boom extension. 21. If required, set offset. Refer to Setting Boom Extension 19. If required, erect the boom extension fly section. Refer to Manual Offset, page 4-16.

  • Page 163: Stowing

    GRT880 OPERATOR MANUAL SET-UP AND INSTALLATION Stowing CONNECTING AND DISCONNECTING BOOM EXTENSION NOTE: When removing the insert, the boom extension fly section of the boom extension may be in the Connecting erected position or folded against the boom extension base section. Making Electrical Connection Between Boom Extension Base Section and Boom Nose Fully extend and set outriggers.

  • Page 164: Removable Counterweight

    SET-UP AND INSTALLATION GRT880 OPERATOR MANUAL REMOVABLE COUNTERWEIGHT Counterweight Control Panel Counterweight control panels are located on each side of the superstructure between the boom pivot and main hoist. Only DANGER one control panel can be used at a time. The crane engine Falling counterweight can crush and cause death or must be running with parking brake ON and no other serious injury.

  • Page 165: Removing

    GRT880 OPERATOR MANUAL SET-UP AND INSTALLATION Removing Installing Refer to Figure 4-23. Refer to Figure 4-23. Position crane on a firm level surface. Fully extend and Position crane on a firm level surface. Fully extend and set outriggers. set outriggers. Place superstructure in normal travel position with NOTE: Counterweight weighs 9,979 kg (22,000 lb).
  • Page 166 SET-UP AND INSTALLATION GRT880 OPERATOR MANUAL THIS PAGE BLANK 4-24 Published 3-25-2020, Control # 643-04...
  • Page 167 GRT880 OPERATOR MANUAL MAINTENANCE AND LUBRICATION SECTION 5 MAINTENANCE AND LUBRICATION SECTION CONTENTS General ........5-2 Steering and Suspension (Continued).

  • Page 168: General

    Dispose of waste properly! Improperly disposing of waste contacting an authorized Grove distributor or can threaten the environment. Manitowoc Crane Care Parts Department. Potentially harmful waste used in Grove cranes includes — CAUTION but is not limited to — oil, fuel, grease, coolant, air...

  • Page 169: Standard Lubricants

    GRT880 OPERATOR MANUAL MAINTENANCE AND LUBRICATION Standard Lubricants Standard lubricants are used on all Grove cranes unless the crane is ordered with a cold weather package. These standard lubricants are effective in temperatures down to -9°C (15°F). Refer to TABLE 5-1: for a list of the recommended standard lubricants.

  • Page 170: Arctic Lubricants And Conditions

    Arctic fuel bands. Always check with an authorized Grove distributor or Manitowoc Crane Care if in doubt of the suitability of a Down to -40°C (-40°F) Package specific fluid or lubricant.
  • Page 171 GRT880 OPERATOR MANUAL MAINTENANCE AND LUBRICATION 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 Hoist Gear CITGO, Synthetic Gear Lube Eaton, Roadranger EP 6829014058 75W-90 Mobil, Mobilube SCH...
  • Page 172 MAINTENANCE AND LUBRICATION GRT880 OPERATOR MANUAL 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 Hoist Gear CITGO, Synthetic Gear Lube Eaton, Roadranger EP 6829014058 75W-90 Mobil, Mobilube SCH...

  • Page 173: Cylinder Rod Surface Protection

    Over lubrication on non-sealed fittings will not harm the protected using Boeshield® T-9 Premium Metal Protectant. fittings or components, but under lubrication will definitely Manitowoc Crane Care has Boeshield® T-9 Premium Metal lead to a shorter lifetime. Protectant available in 12 oz. aerosol cans by ordering part number 9999101803 through the Parts Department.

  • Page 174: Cummins Oil Registration List

    MAINTENANCE AND LUBRICATION GRT880 OPERATOR MANUAL Cummins Oil Registration List Safety Cummins has a program that lists engine oils that it has To lubricate many locations, the engine must be started. tested to meet its engineering specifications. Listing of After positioning areas of the unit for lubrication, the engine recommended oils is on QuickServe®...

  • Page 175: Drive Train

    GRT880 OPERATOR MANUAL MAINTENANCE AND LUBRICATION Drive Train Lube Point Figure Approved Lube Item Lube Interval Application Description Lubricant Capacity Replace filter element Air Cleaner Filter Figure 5-1 when indicator shows red. Fuel filter is located Change filter every 500 on inside right hand Fuel Filter Figure 5-1...

  • Page 176: Drive Train (Continued)

    MAINTENANCE AND LUBRICATION GRT880 OPERATOR MANUAL Drive Train (continued) Lube Point Figure Approved Lube Item Lube Interval Application Description Lubricant Capacity • Check level every 10 Through fill pipe to hours or daily. Transmission, 37.9 L Figure 5-1 FULL mark on Torque Converter (55.6 qt) •...
  • Page 177 GRT880 OPERATOR MANUAL MAINTENANCE AND LUBRICATION FRONT 8591 FIGURE 5-1 Grove 5-11 Published 3-25-2020, Control # 643-04...

  • Page 178: Drive Train (Continued)

    MAINTENANCE AND LUBRICATION GRT880 OPERATOR MANUAL Drive Train (Continued) Lube Point Figure Approved Lube Item Lube Interval Application Description Lubricant Capacity Change transmission filter after Transmission first 50 and 100 hours of Figure 5-2 Filter service, then every 500 hours thereafter.
  • Page 179 GRT880 OPERATOR MANUAL MAINTENANCE AND LUBRICATION Drive Train (Continued) Lube Point Figure Approved Lube Item Lube Interval Application Description Lubricant Capacity DEF Supply Module Filter Figure 5-3 Check filter every 4500 hours. (Tier 4) Indicator in cab DEF Tank 18.9 L Check and fill every 10 hours or Figure 5-3 illuminates when...

  • Page 180: Steering And Suspension

    MAINTENANCE AND LUBRICATION GRT880 OPERATOR MANUAL Steering and Suspension Lube Point Figure Approved Lube Item Lube Interval Application Description Lubricant Capacity Steer Cylinder Until grease Figure 5-4 500 hours or 3 months. 8 grease fittings. Pivot Pins extrudes. Upper and Lower Until grease Figure 5-4 500 hours or 3 months.

  • Page 181: Steering And Suspension (Continued)

    GRT880 OPERATOR MANUAL MAINTENANCE AND LUBRICATION Steering and Suspension (Continued) Lube Point Figure Approved Lube Item Lube Interval Application Description Lubricant Capacity Fifth Wheel Until grease Figure 5-5 500 hours or 3 months. 2 grease fittings. Pivots extrudes. 8595 FIGURE 5-5 Grove 5-15 Published 3-25-2020, Control # 643-04...

  • Page 182: Axles

    MAINTENANCE AND LUBRICATION GRT880 OPERATOR MANUAL Axles Lube Point Figure Approved Lube Item Lube Interval Application Description Lubricant Capacity • Check level every 500 Fill to bottom of hole hours or 3 months. 24.6 L Differentials Figure 5-6 in rear right-hand side (52 pt) •...

  • Page 183: Turntable

    GRT880 OPERATOR MANUAL MAINTENANCE AND LUBRICATION Turntable Lube Point Figure Approved Item Lube Capacity Lube Interval Application Description Lubricant • Check and fill every 50 hours. Turntable Gear 5.4 L Fill to max level on • Drain and fill after Figure 5-7 (5.7 qt) level plug.

  • Page 184: Turntable (Continued)

    MAINTENANCE AND LUBRICATION GRT880 OPERATOR MANUAL Turntable (Continued) Lube Point Figure Approved Item Lube Capacity Lube Interval Application Description Lubricant Turntable Swivel Figure 5-8 Coat pin. 500 hours or 6 months. Spray on. Lock Pin Cab Tilt Until grease Tilt Cylinder extrudes from Figure 5-8 500 hours or 3 months.

  • Page 185: Outriggers

    GRT880 OPERATOR MANUAL MAINTENANCE AND LUBRICATION Outriggers Lube Point Figure Approved Lube Item Lube Interval Application Description Lubricant Capacity Wear Pads Figure 5-9 50 hours or 1 week. Brush on. NOTE: Remove outrigger box end cover. Reach inside outrigger box and brush lubricant on underside of top plate. Outrigger Beams Figure 5-9 50 hours or 1 week.

  • Page 186: Lift Cylinder

    MAINTENANCE AND LUBRICATION GRT880 OPERATOR MANUAL Lift Cylinder Lube Point Approved Lube Item Figure No. Lube Interval Application Description Lubricant Capacity Lower Lift Until grease Figure 5-10 500 hours or 3 months. 1 grease fitting. Cylinder Pin extrudes. 8601 FIGURE 5-10 5-20 Published 3-25-2020, Control # 643-04...

  • Page 187: Boom

    GRT880 OPERATOR MANUAL MAINTENANCE AND LUBRICATION Boom NOTE: Crane Setup: Machine shall be set up on firm level surface with fully extended outriggers and 9979 kg (22,000 lb) counterweight installed. Ensure crane is level. • Boom must be directly over the front with house lock engaged. •...

  • Page 188: Boom (Continued)

    MAINTENANCE AND LUBRICATION GRT880 OPERATOR MANUAL Boom (Continued) NOTE: Crane Setup: Machine shall be set up on firm level surface with fully extended outriggers and 9979 kg (22,000 lb) counterweight installed. Ensure crane is level. • Boom must be directly over the front with house lock engaged. •...
  • Page 189 GRT880 OPERATOR MANUAL MAINTENANCE AND LUBRICATION Figure 5-12 Apply grease to Tele 1 Rollers shaft or inner 250 hours or 3 months. 1 location. Figure 5-13 roller surfaces. NOTE: *Lubricate items more frequently than interval in table if environmental conditions and/or operating conditions require.
  • Page 190 MAINTENANCE AND LUBRICATION GRT880 OPERATOR MANUAL 8900-4 8900-5 FIGURE 5-13 5-24 Published 3-25-2020, Control # 643-04...

  • Page 191: Boom (Continued)

    GRT880 OPERATOR MANUAL MAINTENANCE AND LUBRICATION Boom (Continued) NOTE: Crane Setup: Machine shall be set up on firm level surface with fully extended outriggers and minimum 9979 kg (22,000 lb) counterweight installed. Ensure crane is level. • Boom must be directly over the front with house lock engaged. •...

  • Page 192: Hoist

    MAINTENANCE AND LUBRICATION GRT880 OPERATOR MANUAL Hoist Lube Point Approved Lube Item Figure No. Lube Interval Application Description Lubricant Capacity • Check and fill every Oil must be visible in 50 hours or weekly sight glass and level no 4.7 L Main Hoist Figure 5-15 more than 3 mm...

  • Page 193: Hydraulic

    GRT880 OPERATOR MANUAL MAINTENANCE AND LUBRICATION Hydraulic Lube Point Approved Lube Item Figure No. Lube Interval Application Description Lubricant Capacity • Use sight gauge on side of tank, with boom down and all 894 L Hydraulic Tank Check fluid level every outrigger cylinders Figure 5-16 (944.6 gal)

  • Page 194: Rust Protection

    To help protect against corrosion of Grove cranes, Special equipment is used to spray a light film on the entire Manitowoc Crane Care recommends washing the crane at undercarriage and various other areas of each new crane least monthly to remove all foreign matter. More frequent before shipment.

  • Page 195: Inspection And Repair

    To the extent any damage is structural in nature, • Carwell treatment is available in 16 ounce spray Manitowoc Crane Care must be contacted and consulted bottles from Manitowoc Crane Care (order part number as to what repairs may be required. 8898904099).
  • Page 196 MAINTENANCE AND LUBRICATION GRT880 OPERATOR MANUAL 7650-75 Picture may not be same model as your Figure 5-17 machine, it is for reference only. 5-30 Published 3-25-2020, Control # 643-04...
  • Page 197 GRT880 OPERATOR MANUAL MAINTENANCE AND LUBRICATION Picture may not be same model as your machine, it is for reference only. Figure 5-18 TABLE 5-5. Rust Inhibitor Application Locations Pivot Shaft O/R Beam Wear Pad Adjustment Hardware Boom Extension Pins, Clips Entire underside of unit Boom Nose Pins, Clips Powertrain Hardware Inside Compartment...
  • Page 198 MAINTENANCE AND LUBRICATION GRT880 OPERATOR MANUAL THIS PAGE BLANK 5-32 Published 3-25-2020, Control # 643-04...
  • Page 199 GRT880 OPERATOR MANUAL ALPHABETICAL INDEX Accidents ............. 2-2 Anti-Two-Block (A2B) Switch.
  • Page 200 OPERATOR MANUAL GRT880 THIS PAGE BLANK...

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