Manitowoc Grove GRT880 Service Manual

3-1
Published 10/19/2017, Control # 618-00
GRT880 SERVICE MANUAL ELECTRICAL SYSTEM
3
GROVE
SECTION 3
ELECTRICAL SYSTEM
SECTION CONTENTS
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Alternator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Batteries and Battery Disconnect Switch . . . . . . . 3-2
Cab Electrical Panel . . . . . . . . . . . . . . . . . . . . . . . 3-2
Carrier Electrical Panel. . . . . . . . . . . . . . . . . . . . . 3-7
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
General Troubleshooting . . . . . . . . . . . . . . . . . . 3-12
Tools for Troubleshooting. . . . . . . . . . . . . . . . . . 3-12
Swivel Electrical Troubleshooting . . . . . . . . . . . . 3-12
Connector Troubleshooting . . . . . . . . . . . . . . . . 3-12
Alternator/Charging System Troubleshooting. . . 3-14
Replace Alternator . . . . . . . . . . . . . . . . . . . . . . . 3-14
Starter Replacement. . . . . . . . . . . . . . . . . . . . . . 3-15
Battery Replacement . . . . . . . . . . . . . . . . . . . . . . 3-15
Relay Panel Components . . . . . . . . . . . . . . . . . . 3-16
Steering Column and Dashboard . . . . . . . . . . . . 3-16
Windshield Wiper Assembly Replacement . . . . . 3-20
Windshield Washer Assembly Replacement. . . . 3-20
Skylight Wiper Assembly Replacement. . . . . . . . 3-21
Adjusting Electronic Joysticks . . . . . . . . . . . . . . . 3-22
Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22
Optional Equipment . . . . . . . . . . . . . . . . . . . . . . . 3-26
Beacon Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26
Boom Mounted Floodlights . . . . . . . . . . . . . . . . . 3-26
Rear View Mirror . . . . . . . . . . . . . . . . . . . . . . . . . 3-26
Air Conditioner. . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26
Cold Weather Operation . . . . . . . . . . . . . . . . . . . 3-27
DESCRIPTION
General
The electrical system is 24-volt operation with 24-volt
starting, consisting of an alternator and two lead-acid
batteries wired in series. Electrical power is transferred to
and from the carrier and superstructure through the electrical
swivel. The CAN bus system consists of many control
modules which are located on the carrier, superstructure,
and operator’s cab. For more detailed information on the
electrical swivel, refer to Swing System, page 6-1.
Alternator
A belt-driven (2) 24 volt, 70 ampere alternator with an
integral transformer - rectifier unit (1) is mounted on the
engine. It provides power to the crane electrical circuits and
voltage to recharge batteries and maintain them at a full state
of charge.
Reference Only

Manitowoc Grove GRT880 Specifications

General

Brand	Manitowoc
Model	Grove GRT880
Category	Construction Equipment
Language	English