Manitowoc Grove RT880E User Manual

Grove Published 11-10-2014, Control # 524-00 7-1
RT880E SERVICE MANUAL POWER TRAIN
7
SECTION 7
POWER TRAIN
SECTION CONTENTS
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Electronic Control System. . . . . . . . . . . . . . . . . . . 7-4
Engine Control System Switches and Indicator
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
Fuel System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-7
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
Air Intake and Exhaust System . . . . . . . . . . . . . . . 7-8
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8
Air Intake. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-9
Charge-Air Cooler System . . . . . . . . . . . . . . . . . 7-13
Exhaust System . . . . . . . . . . . . . . . . . . . . . . . . . 7-14
Diesel Exhaust Fluid (DEF) System . . . . . . . . . . 7-17
Water Cooling System . . . . . . . . . . . . . . . . . . . . . 7-19
Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-19
Drive Train . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-25
Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-25
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-25
Transmission/torque Converter . . . . . . . . . . . . . . 7-27
Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-27
Theory of Operation. . . . . . . . . . . . . . . . . . . . . . . 7-27
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-28
Troubleshooting Procedures . . . . . . . . . . . . . . . . 7-28
Towing or Pushing . . . . . . . . . . . . . . . . . . . . . . . . 7-30
Engine Block Heater . . . . . . . . . . . . . . . . . . . . . . . 7-33
ENGINE
Description
The engine is a Cummins QSB6.7 diesel engine. This
Service Manual does not include detailed information on the
engine itself. A separate manual as prepared in detail by the
engine manufacturer, is supplied with this Service Manual.
However, a short description and maintenance of certain
components of the fuel system, air intake system, and water
cooling system is provided in this section.
The engine is electronically controlled by the Electronic
Control Module (ECM), it is the control center of the system.
It processes all of the inputs and sends commands to the fuel
systems as well as vehicle and engine control devices.
Engine speed is controlled by the foot accelerator pedal in
the cab. It controls engine RPM which increases or
decreases proportionately with the amount of foot pressure
applied to the pedal. Engine speed is also controlled by the
idle switch, which is a three position rocker switch located on
the front of the steering column. The idle switch allows the
operator to infinitely vary and hold the engine speed between
the engine’s minimum and maximum idle settings (refer to
Section 3, Operating Controls and Procedures in the
applicable Operator Manual for details on the operation of
the idle switch). The foot accelerator pedal and idle switch
are electrically connected to the superstructure control
module which sends the signal to the engine ECM via the
data link.
The engine and its components are enclosed in a hood
assembly with a grill in the rear of the hood for adequate air
circulation. Access to the engine is gained through a door
assembly in the top of the hood that opens from both sides.
The air intake filter is mounted on the rear of the right rear
fender. The exhaust system is mounted on the left side of the
frame behind the rear fender.
To aid in starting the engine in cold weather, the engine is
equipped with electric air heating elements that are located
in the engine’s intake air stream to aid in cold starting and
reduce white smoke at start-up. In the preheat mode, the
engine should not be cranked until the Wait-to-Start Lamp
turns off. The Wait-to-Start Lamp is illuminated during the
preheat time that takes place when the ignition switch is in
the ON position during cold weather starting. The ECM
checks information it receives from the various sensors on
the engine to determine how long to energize the air heater
DANGER
Do not spray starting fluid into the air inlet. The spray will
contact the heater elements and could explode causing
personal injury.

Manitowoc Grove RT880E Specifications

General

Brand	Manitowoc
Model	Grove RT880E
Category	Construction Equipment
Language	English