Download D10T (RJG) Service Training PDF

TitleD10T (RJG) Service Training
File Size8.6 MB
Total Pages208
Table of Contents
                            COVER
PREFACE
TABLE OF CONTENTS
INTRODUCTION
OP COMPART
MONITOR AND DISPLAY SYS_ADVISOR™
	Start-up
ENGINE
	Fuel Delivery System
	Engine Air System
	Cooling System
	Hydraulic Demand Fan Sys
	Remote Air To Air AfterCooler Sys
POWER TRAIN
	PT Electronic Cont Sys
	PT Hyd Sys
	Torque Divider
	Power Shift Trans
	Electronic Steering and Bk Control V
IMP HYD SYS
	Imp Hyd Sys Comp Id
	Pilot Hydraulic System
	Dozer Control Valve
	Dozer Lift and Tilt Circuits
	Ripper Control Valve
	Ripper Lift and Tip Circuits
	Dual Tilt Operation
	Quick-Drop Valve Operation
	AutoCarry
ELECTRICAL SYSTEM
CONCLUSION
COLOR CODE
VISUAL LIST
VISUAL LIST
POSTTEST
ANSWERS
                        
Document Text Contents
Page 2

D10T TRACK-TYPE TRACTOR
MEETING GUIDE 800 SLIDES AND SCRIPT

AUDIENCE
Level II Service personnel who have knowledge of the principles of machine systems operation,
diagnostic equipment, and procedures for testing and adjusting machine systems and
components.

CONTENT
This presentation discusses the operation of the power train, the steering system, the implement
hydraulic system, the demand fan system, the cooling system, and the Caterpillar Monitoring
and Display System with Advisor™ on the D10T Track-type Tractor. Also discussed is the
operation of the controls in the operator compartment and the location and identification of the
major components of the C27 ACERT™ technology engine.

OBJECTIVES
After learning the information in this presentation, the serviceman will be able to:

1. locate and identify all of the major D10T machine components;
2. locate and identify all filters, dipsticks, indicators, fill tubes, drains and test points;
3. locate and identify the major components of the C27 ACERT™ technology engine;
4. trace the flow of fuel through the C27 engine fuel delivery system;
5. trace the flow of air through the C27 engine air intake system;
6. trace the flow of coolant through the cooling system of the D10T;
7. identify and explain the function/operation of each major component in the hydraulic

demand fan system;
8. trace the flow of oil through the hydraulic demand fan system and explain its operation;
9. identify and explain the function/operation of each major component in the power train

system;
10. trace the flow of oil through the power train hydraulic system and explain its operation;
11. explain the function/operation of each major component in the implement hydraulic

system;
12. trace the flow of oil through the implement hydraulic system and explain its operation;
13. locate and identify all of the major components in the Caterpillar Monitoring and Display

System, with Advisor™; and
14. explain the function of each component in the Caterpillar Monitoring and Display

System, with Advisor™ and explain the system's basic operation at machine start-up.

Page 104

An extremely heavy load can stall the machine. If the machine stalls, the output shaft and the
planetary carrier will not rotate. This condition causes the ring gear and turbine to rotate in the
opposite direction of engine rotation. Maximum torque multiplication is achieved just as the
ring gear and turbine begin to turn in the opposite direction.

The torque divider is also equipped with a freewheel stator. The stator is splined to a cam which
rotates around the stationary carrier in only one direction. Machined into the cam are tapered
openings, each of which contain a roller and a spring. Spring force holds the roller against the
taper and the carrier. This restricts the cam from turning.

When the machine is under a load, and the impeller and turbine are rotating at different speeds,
the stator is held stationary. The stator directs oil flow to the impeller, multiplying the torque.

During all load conditions, the torque converter provides 70% of the output, and the planetary
gear set provides the remaining 30% of the output.

STMG 800 - 104 - Text Reference
03/05

Page 105

84

The torque converter outlet relief valve (1) is installed at the right rear of the torque divider
housing. Torque converter oil exiting the torque converter enters the torque converter outlet relief
valve through the inlet passage in the valve body (1), where it connects to the outlet port of the
torque converter. The oil then exits the outlet relief valve at the valve outlet passage and is then
directed to the power train oil cooler through the upper steel tube (5). The cooled power train oil
returns from the coolers through the lower steel tube (6). The oil is then directed to the lube
distribution manifold through a hose that connects to the outlet (7) at the rear of the valve body.

Torque converter outlet relief pressure (N) can be tested at the left pressure test port (3). Cooler
lube pressure (CL) can be tested at the right pressure test port (2).

The torque converter oil temperature sensor (4) is installed in the torque converter outlet relief
valve. It senses the temperature of the power train oil exiting the torque converter and provides a
signal to the Power Train ECM. Cat Advisor monitors this temperature data from the Power
Train ECM and uses it to operate the torque converter oil temperature gauge (analog), located at
the upper right of the instrument cluster. The status of the torque converter oil temperature sensor
(in degrees) may also be viewed through the Advisor panel (Service/System Status/Power Train
screens and Performance 1 screen) or by using Cat ET.

Access to the torque converter outlet relief valve components is through the plate at the bottom of
the valve body.

STMG 800 - 105 - Text Reference
03/05

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