Grove Published 3-22-2021, Control # 702-02 5-1
GRT8120 OPERATOR MANUAL SET-UP AND INSTALLATION
SECTION 5
SET-UP AND INSTALLATION
SECTION CONTENTS
Setup of Crane Before and After Transporting . . 5-2
Hoist Camera . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Hoist Platform . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Beacon Lights (Optional) . . . . . . . . . . . . . . . . . . . 5-5
Cab Mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
RCL Light Tower (Optional) . . . . . . . . . . . . . . . . . 5-7
Access Ladders . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Outrigger Floats . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Hydraulic Hose Drum (Optional). . . . . . . . . . . . . . 5-9
Boom Position Indicator Light and
Anemometer (Optional) . . . . . . . . . . . . . . . . . . . . 5-9
Auxiliary Single-Sheave Boom Nose . . . . . . . . . . 5-9
Installing Cable On The Hoist . . . . . . . . . . . . . . . 5-10
Anti-Two Block (A2B) Switch . . . . . . . . . . . . . . . 5-10
Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
Unlocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
Checking Before Operation . . . . . . . . . . . . . . . . 5-11
Hoist Rope Reeving . . . . . . . . . . . . . . . . . . . . . . . 5-13
Possible Reeving Combinations . . . . . . . . . . . . . 5-13
Quick Reeving the Hook Block . . . . . . . . . . . . . . 5-17
Reeving Hoist Rope Over the Boom. . . . . . . . . . 5-17
Reeving/Unreeving the Hoist Rope. . . . . . . . . . . 5-17
Dead-End Rigging/Wedge Sockets . . . . . . . . . . 5-18
Boom Extension . . . . . . . . . . . . . . . . . . . . . . . . . . 5-20
General Warnings . . . . . . . . . . . . . . . . . . . . . . . . 5-21
Boom Extension Pin Interlock Mechanism . . . . . 5-21
Boom Extension Mounting Brackets. . . . . . . . . . 5-23
Boom Extension Sensors . . . . . . . . . . . . . . . . . . 5-25
Lifting Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-25
About the Boom Extension Group in the ODM . . 5-26
Installing the Folding Boom Extension . . . . . . . . 5-30
Removing the Folding Boom Extension. . . . . . . . 5-34
Erecting the 17.6 m (57.6 ft) Boom Extension . . . 5-35
Erecting the Fly Section. . . . . . . . . . . . . . . . . . . . 5-39
Stowing the Fly Section . . . . . . . . . . . . . . . . . . . . 5-41
Stowing the 17.6 m (57.6 ft) Boom Extension . . . 5-42
Erecting the 10.5 m (34.5 ft) Boom Extension
Base Section Only . . . . . . . . . . . . . . . . . . . . . . . 5-45
Stowing the 10.5 m (34.5 ft) Boom Extension
Base Section Only . . . . . . . . . . . . . . . . . . . . . . . 5-48
Boom Extension Electrical Connections . . . . . . . 5-51
Hydraulic Boom Extension Connections . . . . . . . 5-52
Reeving the Hoist Rope. . . . . . . . . . . . . . . . . . . . 5-55
Offsetting the Mechanical Boom Extension . . . . . 5-56
Offsetting the (Optional) Hydraulic Boom
Extension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-57
Anti-Two Block Switch on the Boom Extension . . 5-58
Folding Mast Sheave . . . . . . . . . . . . . . . . . . . . . . 5-59
Auxiliary Single Sheave Boom Nose . . . . . . . . . . 5-60
Identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-60
Installing/Removing Auxiliary Single-Sheave
Boom Nose. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-60
Rigging the Auxiliary Single-Sheave
Boom Nose. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-62
Rigging in Transport Position. . . . . . . . . . . . . . . . 5-62
Rigging in Working Position. . . . . . . . . . . . . . . . . 5-62
Attaching and Removing Hoist Cable . . . . . . . . . 5-62
Anemometer/Boom Position Light (Optional) . . 5-63
Counterweight Removal and Installation . . . . . . 5-66
Counterweight Control Panel. . . . . . . . . . . . . . . . 5-67
Removing the Counterweight . . . . . . . . . . . . . . . 5-68
Installing the Counterweight . . . . . . . . . . . . . . . . 5-69
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