Manitowoc Grove RT770E Service Maintenance Manual

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Published 11/26/2014, Control # 447-05
RT770E SERVICE MANUAL INTRODUCTION
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GROVE
SECTION 1
INTRODUCTION
SECTION CONTENTS
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Overview of Manuals . . . . . . . . . . . . . . . . . . . . . . 1-1
Customer Support. . . . . . . . . . . . . . . . . . . . . . . . . 1-2
General Crane Design . . . . . . . . . . . . . . . . . . . . . 1-2
Specific Crane Description . . . . . . . . . . . . . . . . . . 1-2
Lifting Capacities (Load Chart) . . . . . . . . . . . . . . . 1-2
Basic Components . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Axle Weight Distribution . . . . . . . . . . . . . . . . . . . . 1-2
Serial Number Location . . . . . . . . . . . . . . . . . . . . 1-2
Transportation and Lifting Data . . . . . . . . . . . . . . 1-2
List Of Specifications . . . . . . . . . . . . . . . . . . . . . . . 1-3
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Torque Converter . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Engine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Axles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Brakes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Wheels and Tires . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Swing Gearbox . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Boom . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Swivel Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Hydraulic Pumps. . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Hoists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Crane Nomenclature. . . . . . . . . . . . . . . . . . . . . . . 1-7
General Maintenance . . . . . . . . . . . . . . . . . . . . . . . 1-9
Cleanliness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
After Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Removal and Installation . . . . . . . . . . . . . . . . . . . 1-9
Disassembly and Assembly . . . . . . . . . . . . . . . . . 1-9
Pressing Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Locking Devices. . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Wires and Cables . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Shims. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Hoses and Tubes. . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Bearings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Gaskets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Batteries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Hydraulic Systems . . . . . . . . . . . . . . . . . . . . . . . . 1-12
Hydraulic Fittings . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
Electrical System . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
Fatigue of Welded Structures . . . . . . . . . . . . . . . 1-15
Loctite® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
Fasteners and Torque Values . . . . . . . . . . . . . . . 1-16
Weld Studs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19
Wire Rope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
Environmental Conditions . . . . . . . . . . . . . . . . . . 1-20
Dynamic Shock Loads . . . . . . . . . . . . . . . . . . . . . 1-20
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
Precautions and Recommendations During
Inspection or Replacement . . . . . . . . . . . . . . . . . 1-20
Wire Rope Inspection (Running Ropes and
Pendant Cables) . . . . . . . . . . . . . . . . . . . . . . . . . 1-21
Wire Rope Inspection (Boom Extension and
Retraction Cables) . . . . . . . . . . . . . . . . . . . . . . . . 1-22
Wire Rope Inspection/Replacement
(All Wire Rope) . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
Seizing Wire Rope . . . . . . . . . . . . . . . . . . . . . . . . 1-23
Installing 35x7 Class Wire Rope . . . . . . . . . . . . . 1-24
Procedures for Cutting and Preparing
35x7 Class Wire Rope . . . . . . . . . . . . . . . . . . . . . 1-24
GENERAL
This Manual provides important information concerning your
Grove Crane.
Overview of Manuals
Before placing the crane in service, take time to thoroughly
familiarize yourself with the contents of this manual. After all
sections have been read and understood, retain the manual
for future reference in a readily accessible location.
NOTE: Throughout this Manual, reference is made to left,
right, front, and rear when describing locations.
These reference locations are to be considered as
those viewed from the operator’s seat with the
superstructure facing forward over the front of the
carrier frame.
Engine & RCL operating procedures and routine
maintenance procedures are supplied in separate manuals
with each crane, and should be referred to for detailed

Manitowoc Grove RT770E Specifications

General

Brand	Manitowoc
Model	Grove RT770E
Category	Construction Equipment
Language	English