Manitowoc Grove RT880E

Questions and Answers

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Laurie KellyAug 7, 2025
Why is my Manitowoc Grove RT880E Construction Equipment pump noisy and the hydraulic oil foaming?
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  Patrick WilliamsAug 7, 2025
  If the Manitowoc Construction Equipment pump is noisy and the hydraulic oil is foaming, it could be due to a few reasons. First, check if the hydraulic oil level is low and fill the reservoir if needed. Also, make sure the engine speed isn't too high and regulate it if it is. Finally, inspect the suction lines for any air leaks, ensuring they are secure and properly repaired; tighten, repair, or replace parts as needed.
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crossrandyAug 14, 2025
Why is my Manitowoc Grove RT880E Construction Equipment responding slowly?
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  Daniel ZimmermanAug 14, 2025
  If your Manitowoc Construction Equipment is responding slowly, several factors could be the cause. Begin by checking the hydraulic oil level and fill the reservoir if it's low. Also, the hydraulic oil temperature might be too high (making the oil too thin) or too low (making the oil thick). If the temperature is too low, warm up the system. If it's too high, troubleshoot the cooler circuit, paying attention to the in-line check valve and related hydraulic circuits. Lastly, faulty pump sections could be the problem; in this case, repair or replace the pump sections or the entire pump.
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William KimAug 22, 2025
What to do if no hydraulic oil flows in Manitowoc Grove RT880E Construction Equipment systems?
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  Randy PerezAug 22, 2025
  If there is no hydraulic oil flowing in your Manitowoc Construction Equipment's systems, several issues could be the cause. Start by checking the hydraulic oil level and fill the reservoir if it's low. Inspect the reservoir-to-pump suction lines for breaks or restrictions, and ensure no air is entering; clean, repair, or replace lines as needed, checking for security, cracks, and proper attachment. If the pump shaft is damaged, remove and repair or replace it. Finally, internal contamination could be the problem; drain and flush the system with the recommended oil mixture, then drain and refill with the recommended hydraulic oil.
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bjonesAug 30, 2025
How to fix excessive pressure buildup in Manitowoc Grove RT880E?
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  Martin MitchellAug 30, 2025
  Excessive pressure buildup in your Manitowoc Construction Equipment can stem from a couple of issues. The system relief valve might be set too high; use a pressure gauge to adjust it as needed. Alternatively, the pump-to-control valve supply line could be restricted; clean, repair, or replace the line as necessary.

Summary

SECTION 1 INTRODUCTION

General Crane Information

Overview of crane design, basic components, serial number location, and transport data.

List of Specifications

Comprehensive list of the crane's technical specifications including dimensions, capacities, and components.

General Maintenance

Guidelines for general maintenance, cleanliness, component handling, and system specifics.

Hydraulic Systems and Components

Details on hydraulic systems, fittings, hoses, and bearings.

Fasteners and Torque Values

Guidelines for using torque wrenches and fastener torque values.

Wire Rope

Information on wire rope inspection, maintenance, and replacement criteria.

SECTION 2 HYDRAULIC SYSTEM

Hydraulic System Overview

Description, theory of operation, and general maintenance of the hydraulic system.

Hydraulic Components

Details on directional control valves, hydraulic lines, and fittings.

Hydraulic Pumps

Description, troubleshooting, and replacement of hydraulic pumps.

Hydraulic System Troubleshooting

Common hydraulic system problems and their solutions.

SECTION 3 ELECTRIC SYSTEM

System Overview and Components

Overview of the 12-volt electrical system, CAN bus, and major electrical panels.

Electrical Maintenance and Troubleshooting

Procedures for electrical system maintenance, troubleshooting, and component replacement.

Component Replacement Procedures

Detailed steps for replacing alternator, starter, batteries, and switches.

SECTION 4 BOOM

Boom Description and Theory

Description of the boom, its extension/retraction mechanisms, and theory of operation.

Boom Maintenance and Adjustments

Procedures for boom removal, disassembly, assembly, and adjustments.

Boom Extension and Retraction Cable

Maintenance and adjustment procedures for boom extension and retraction cables.

SECTION 5 HOISTS AND COUNTERWEIGHT

Hoist System and Maintenance

Description and theory of operation for the hoist system, including maintenance.

Counterweight and Third Wrap Indicator

Procedures for counterweight removal/installation and third wrap indicator function.

SECTION 6 SWING SYSTEM

Swing System Overview and Drive

Overview of the swing system, theory of operation, and the swing drive components.

Swing Components and Maintenance

Troubleshooting common swing system issues and maintenance of gearbox, bearing, and swivels.

Swivels

Description and maintenance of hydraulic, water, and electrical swivels.

SECTION 7 POWER TRAIN

Engine and Fuel System

Description and maintenance of the Cummins QSB6.7 engine and its fuel system.

Air Intake, Exhaust, and Drive Train

Details on air intake, exhaust systems, DEF system, and drive train components.

Cooling System and Troubleshooting

Description and maintenance of the cooling system, including overheating and overcooling effects.

SECTION 8 UNDERCARRIAGE

Axles and Steering Systems

Description and maintenance of axles, wheels, tires, and steering systems.

Brake System and Outriggers

Description of service brakes, parking brake, and outrigger system.

Outrigger Components and Maintenance

Details on outrigger beams, cylinders, monitoring systems, and their maintenance.

SECTION 9 LUBRICATION

General Lubrication Information

General lubrication procedures, environmental protection, and lubrication intervals.

Component Lubrication Details

Specific lubrication details for various components including axles, drive train, turntable, and boom.

Boom and Hoist Lubrication

Specific lubrication points and intervals for boom and hoist components.