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lade FloatEnable

Select the desired blade response.Disable

lade Tilt ModeSingle

Select the desired blade response.Dual

ipper Auto Stow Function

Raise

Select the desired ripper action.Raise/ShkIn

Raise/ShkOut

uto Blade Pitch

Load Set position - Press OK to set load pitch

Carry Set position - Press OK to set carry pitch

Spread Set position - Press OK to set spread pitch

eturn Height Set position - Press OK to set return height

pread Rate Bar Graph Use left and right arrow keys to adjust - Press OK to s

he operator manually changes the pitch of the blade, then the auto pitch function will be overridden.

te: During load and carry operations, the height of the blade is manually controlled by the operator. The operator us

de control handle in order to control the height of the blade. During the spread operation, the height of the blade can

ntrolled automatically by the ECM when Auto Carry has been installed.

e ABA switch on the right hand console is used to activate the auto pitch function. The ABA switch on the right handnsole is used to deactivate the ABA function. While ABA is armed, the ABA indicator on the instrument cluster is on

hen ABA is disarmed, the ABA indicator on the instrument cluster is off. The Advisor informs the operator about the

erations of the ABA function. The operator uses the mode select switch on the left side of the blade control handle to

ivate the different modes of ABA. The manual selector switch on the right side of the blade control handle is used to

activate the ABA function. In order to reactivate the ABA function, the mode select switch is pressed again.

ree positions for the blade pitch are available for a typical dozing cycle. The positions for the blade pitch are listed:

The load position is used in order to load the blade. The load position is also used in the process of resetting the

blade.

The carry position is used in order to carry the load.

The spread position is used in order to spread the load (dump).

e ABA function will pitch the blade automatically to one of the positions at the beginning of the dozing cycle. The pos

he blade can be set by the operator or the factory default values can be used. The ECM will monitor the height of th

de and the pitch of the blade when the ABA function has been armed. This tracking occurs even when ABA has be

activated with the manual selector switch. In this way, the system is always ready to resume ABA. The ABA function

operate properly when the following conditions exist:

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The engine RPM is less than 600.

A diagnostic code for the ABA is present.

The implement lockout switch is in the LOCKED position.

The key start switch is in the OFF position.

The system is in the service mode of the Caterpillar Electronic Technician.

te: The ABA will function well to the RPM of 1000. The ABA will not work well from the RPM of 1000 to the RP

0.

e position of the blade pitch is estimated by using a calculated pump flow for a measured period of time. Some of th

tors that are included in the calculation are listed: the pressure of the tilt pump, engine speed and the pitch position fo

o.

e process of resetting the blade is performed before the blade is loaded. The reset process determines the position o

ch (full pitch back). The ECM will determine the amount of oil flow that is required in order to pitch the blade. The E

l calculate the flow of oil that is required to adjust the pitch of the blade to a preset position.

esetting ABA

order to arm the ABA function, the ABA switch is depressed. When the ABA is armed initially, the ECM is unable t

ermine the position of the tilt cylinders. Therefore, when the ABA function is armed initially, the process of resetting

ur. The operator is prompted to start the process.

NOTICE

Once ABA is armed, depressing the mode select switch may cause the

ABA to move the blade automatically.

er the ABA is armed initially, the message center will show the following display: "NOT RESET". Then, the operator

ss the mode select switch on the blade control handle. Now, the ECM will automatically retract the tilt cylinders to

ck position. During this time, the message center will show:

"RESETTING"

e ECM will activate the pitch solenoid and the tilt left solenoid in order to ensure that the tilt cylinders are fully retrac

s fully retracted position is called the zero pitch position.

te: The process of resetting is faster when the engine is operating at higher engine speeds.

er the tilt cylinders are fully retracted, the ECM automatically moves the pitch of the blade to the load position. At th

e, the Advisor will show:

"READY TO CARRY"

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e ABA function is active. The ABA must be armed. Then, the ABA must be reset, before the ABA function will ope

perly.

te: If the blade is being reset and the operator adjusts the pitch of the blade, then the ABA function will not operate

perly. The operator must press the mode select switch again in order to restart the process of resetting.

e ABA function will reset the pitch of the blade automatically for each dozing cycle in order to reduce errors. The re

done automatically while the machine is moving in reverse. When the ABA function is armed for the first time, the pro

resetting between dozing cycles is faster than the initial process of resetting. The ECM already has the information

arding the position of the tilt cylinder.

onditions That Cause Inaccuracies In The ABA

e following list contains examples of conditions that can cause inaccuracies in the operation of the ABA:

The operator activates the ABA function and the operator deactivates the ABA function quickly.

Pump efficiency has degraded.

Failure of the seal in the tilt cylinders

Low idle speed

A significant hydraulic oil leak

The operator does not allow the system to reset properly.

sabling Conditions

e ABA function will be disabled if any of the following conditions are present. This condition will be reported to theerator on the Advisor.

ERVICE" - This message appears during any calibration procedure. This message appears regardless of arming of

A.

HECK CONTROLS" - This message appears if the powerup test has failed. This message appears regardless of

ming the ABA.

MPLEMENTS OFF" - This message appears if the implement lockout switch is in the LOCKED position. This

ssage appears regardless of the arming of the ABA.

OW ENGINE SPD" - This message appears if the engine speed is less than 400 rpm for at least 2 seconds. This

ssage appears only if ABA is armed.

he ABA function is armed and the conditions that may disable the machine have been resolved, the message "RESET

displayed in order to instruct the operator to reset the blade pitch. See the topic "Normal Auto Pitch Function".

uto Spread Function

te: This function applies to machines equipped with auto carry.

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en, the operator should activate the reset by pressing the mode select switch on the blade control handle. The reset

cess is an automatic function that is performed by the ECM. The engine should be running at high idle. The blade is

ched backward automatically during the process of resetting. The following message appears on the message center

"RESETTING"

w, the ECM will retract the tilt cylinders fully. This position is defined as being the position of zero pitch. The ECM

this position as a reference in order to calculate the blade pitch for the following operations:

Loading

Carrying

Spreading

te: If the operator adjusts the pitch of the blade during the process of resetting, the process of resetting will not be

rect. The blade must be reset again.

en, the tilt cylinders will extend to the loading position. The following message will be displayed on the message cent

"READY TO CARRY"

e blade is ready to be loaded. The operator will press the mode select switch after the blade is loaded in order to act

carry mode. The tilt cylinders will move to the carry position. For machines equipped with auto carry, the machine w

ust the lift cylinders in order to control the height of the cutting edge to the desired height. The operator selects the h

using the blade control handle. Then, the following message will be displayed on the Advisor:

"CARRY"

e machine should be carrying the load. When the operator presses the mode select switch again, the spread mode wi

ivated. The tilt cylinders will move to the spread position. The operator selected the spread position previously. Also

o spread function of the ECM will retract the lift cylinders in order to raise the blade on machines equipped with aut

ry. The message center will display the following message:

te: Auto Spread function is only in machines equipped with Auto Carry.

"SPREAD"

te: Auto Spread function is only on machines equipped with auto carry.

e machine should be spreading the load. If a spread rate has been selected by the operator, the lift cylinders will retrail the blade has been raised to the preselected height on machines that are equipped with auto carry. Next, the system

urn to the return mode. The return process is performed in three steps:

Ready to return

Resetting of the blade

Return

hen the machine has finished spreading the load, the return mode is initiated. The return mode is initiated when the op

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ects reverse gear. The following message will appear on the message center:

"RETURN"

te: If the operator presses the mode select switch after spreading, the message center will display "READY TO

TURN" until the operator selects the reverse gear. The machine is usually in reverse at this time.

hen the ECM determines that the machine is moving in the reverse direction, the reset process for the blade will begi

omatically. The ECM will retract the tilt cylinders. The ECM will define this position as the position of zero pitch. No

ECM will calculate the preset tilt position for the following operations:

Loading operation

Carrying operation

Spreading operation

en, the tilt cylinders will be extended to the preset load position. During the process of resetting, the auto return funct

ECM will adjust the blade to a preset return height simultaneously for machines that are equipped with auto carry. W

operator selects the forward gear or the neutral gear, the ECM will activate the "ready to carry mode" automatically

te: Auto Spread function is only in machines that are equipped with Auto Carry.

e dozing cycle is now complete and the system is ready for the next dozing cycle.

uto Blade Assist (ABA) Function

e Automated Blade Assist (ABA) is designed in order to reduce operator fatigue. The Automated Blade Assist inclu

of functions that are automated in order to improve the efficiency of the operator. The ABA will also improve the

nsistency of a normal dozing cycle. These functions are designed for basic stripping operations. These functions can a

applied to other applications of dozing. The functions that are available currently are listed:

Auto Pitch

Auto Spread

Auto Return

Auto Pitch Compensation

te: The Auto Spread, Auto Return, and Auto Pitch Compensation functions require Auto Carry to be installed.

ese functions are used in a normal dozing cycle. A dozing cycle consists of the following segments: "load", "carry",

read" and "return". The operator will cycle through each segment by using the mode select button switch on the blad

ntrol handle. The functions of the ABA are armed by selecting the "ABA" switch. Then, the ABA is activated by pre

mode select button switch. The button on the right hand side of the blade control handle is the manual select switch.

A feature will be armed and the ABA will remain in this state if the manual select switch is pressed. However, the A

l not be active. The functions of the ABA may be activated or the functions of the ABA may be reactivated by pressi

mode select switch. The ABA will be activated at a standard initial point according to the gear of the machine. The

ments of the ABA can be incremented by forward or reverse shifts of the machine. A machine that has the ABA fun

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l also have Auto Pitch. The auto spread function and the auto return function require the machine to be equipped with

inder position sensors. Machines that are configured as single tilt machines cannot use the "ABA". After the "ABA" h

en armed, the display of the Advisor will indicate the specific feature that are activated while the operator is using the

A.

e mode select switch is used to scroll through the following functions. The sequence of the functions for the ABA are

ed:

Table 2

Neutral Gear Forward Gear Reverse Gear

Ready to Carry" (1) "Ready to Carry" (1) "Ready to Return" (1)

Carry" "Carry" "Blade Resetting" (2)

Spread" "Spread" "Return"

Ready to Return" "Ready to Return"

Blade Resetting"

Return"

) The ABA will enter this mode initially.

) The ABA will automatically change from "SPREAD" to "BLADE RESETTING" when the gear is changed to reverse.

ormal Auto Blade Assist Operation

"RESETTING"

w, the ECM will retract the tilt cylinders fully. This position is defined as being the position of zero pitch. The ECM

this position as a reference in order to calculate the blade pitch for the following operations:

Loading

Carrying

Spreading

te: If the operator adjusts the pitch of the blade during the process of resetting, the process of resetting will not be

rect. The blade must be reset again.

en, the tilt cylinders will extend to the loading position. The following message will be displayed on the Advisor:

"READY TO CARRY"

e blade is ready to be loaded. The operator will press the mode select switch after the blade is loaded in order to act

carry mode. The tilt cylinders will move to the carry position. The machine will adjust the lift cylinders in order to co

height of the cutting edge to the desired height. The operator selects the height by using the blade control handle. Th

following message will be displayed on the Advisor:

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"CARRY"

e machine should be carrying the load. When the operator presses the mode select switch again, the spread mode wi

ivated. The tilt cylinders will move to the spread position. The operator selected the spread position previously. Also

o spread function of the ECM will retract the lift cylinders in order to raise the blade. The Advisor will display the

owing message:

"SPREAD"

e machine should be spreading the load. If a spread rate has been selected by the operator, the lift cylinders will retra

il the blade has been raised to the preselected height. Next, the system will return to the return mode. The return pro

performed in three steps:

Ready to return

Resetting of the blade

Return

hen the machine has finished spreading the load, the return mode is initiated. The return mode is initiated when the opects reverse gear. The following message will appear on the message center:

"RETURN"

te: If the operator presses the mode select switch after spreading, the Advisor will display "READY TO RETURN"

operator selects the reverse gear. The machine is usually in reverse at this time.

hen the ECM determines that the machine is moving in the reverse direction, the reset process for the blade will begi

omatically. The ECM will retract the tilt cylinders. The ECM will define this position as the position of zero pitch. No

ECM will calculate the preset tilt position for the following operations:

Loading operation

Carrying operation

Spreading operation

en, the tilt cylinders will be extended to the preset load position. During the process of resetting, the auto return funct

ECM will adjust the blade to a preset return height simultaneously. When the operator selects the forward gear or th

utral gear, the ECM will activate the "ready to carry mode" automatically. The following message appears on the Adv

"READY TO CARRY"

e dozing cycle is now complete and the system is ready for the next dozing cycle.

uto Pitch

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stration 1 g01120379

gram of the normal ABA mode sequence

e auto pitch feature controls the pitch of the blade according to the segment of the dozing cycle. The operator chang

ments sequentially by using the mode select switch on the blade control handle. The auto pitch feature will maintain

ferent settings of pitch for the "load", "carry" and "spread" portions of the dozing cycle. These settings can be set to th

tory default values or customized by the operator. See System Operation, "Blade Settings". Within the topic "Bladetings", see the information about "Setting The Setpoints For Pitch". The settings can be stored with the operator pro

chine that has been configured as a single tilt machine cannot make effective use of the auto pitch feature. Auto pitch

ilable on machines that are equipped with dual tilt and operating in the single tilt mode.

te: The auto pitch will not operate properly below an engine rpm of 1000.

e operations of the auto pitch are included in the following list:

1. "Activate"

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a. In order to arm the "ABA", press the "ABA" rocker switch below the advisor screen. The display will dis

the message "ABA CONTROL IS NOW ON". Then, the message will change to "BLADE PITCH NO

RESET" on the first line. The second line will display "RESET WITH MODE SELECT". At this time, the

is armed but the mode is not activated. The position of the blade must be initialized in order to activate the

pitch feature.

2. "Initialize"

a. Press the mode select switch on the blade control handle. The blade will return to the most rearward posi

pitch (zero pitch). Then, the blade will extend to the "load" position. The display will change to "READY

CARRY". The blade is in the "load" position, unless the machine is in the reverse gear. The mode will chan

"ready to return" if the machine was in the reverse gear.

3. "Load"

a. The display should show "READY TO CARRY". The operator proceeds to load the blade adequately w

control over all motions of the blade. The "auto pitch" feature does not perform any actions during the "Lo

segment of the dozing cycle. At the end of the "Load" segment, the operator will press the mode select sw

The display will change to read "CARRY" and the preset pitch of the blade will move to the pitch for "car

4. "Carry"

a. Now, the operator will carry the load for the "spread" segment to the spread area.

5. "Spread"

a. During the "spread" segment, the ABA function will extend the tilt cylinders to the preset pitch for "spread

Unless the operator changes into the "Return" segment by shifting into the reverse gear, the blade pitch wi

increase until the blade reaches the preset position of pitch forward. The auto pitch will only pitch the blad

forward when the machine is in the "spread" mode. The operator can pitch the blade rearward in order tothe rate of blade pitch. auto pitch will continue to pitch the blade forward after the operator releases the b

control handle. See "Operator Override Of The Automated Blade Assist Function". During normal opera

the load will be spread. Then, the operator will shift into the reverse gear. The display will read "RESETT

and auto pitch will begin to reset to the load position.

6. "Return"

a. The blade pitch will move rearward to the zero pitch position during the "Return" cycle. Then, the blade p

will move forward to the pitch position for "Load" operations. The display will read "RESETTING " when

blade is in a transition. The display will read "RETURN" after the blade has reset. This operation is in preparation for the next pass. The machine will change to the "ready to carry" mode, if the operator is in t

"return" segment and shifts to the forward gear. Now, the machine is ready for the "load" segment.

If the operator interrupts the blade resetting mode, the mode will change to "ready to return". The blade w

reset again if the mode select switch is pressed again. Reset the blade after each cycle in order to maintain

accuracy of the auto pitch function.

onditions That Cause Inaccuracies In The Auto Pitch

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e following list contains examples of conditions that can cause inaccuracies in the operation of the auto pitch:

The operator activates the auto pitch function and the operator deactivates the auto pitch function quickly.

The pump efficiency has degraded.

The pump has not been calibrated correctly.

Failure of the seal in the tilt cylinders

Low idle speed

A significant hydraulic oil leak

The operator does not allow the system to reset properly.

uto Spread Function

e auto spread function is designed in order to control the height of the blade during the spread/dump segment of the d

le. The auto spread function will raise the blade in order to spread the carried load at one of four speeds: none, slowndard and fast. The blade will raise approximately three inches initially during each of these spread rates. The spread

l vary according to the spread rate that was selected. The spread rate will also vary according to the speed of the tra

e operator will choose the spread rate from a menu. The rate can be stored with the operator profile. The auto sprea

ture is automatically activated by the ABA, when the ABA changes to the spread mode. The auto spread feature wi

ntinue to raise the blade even though the tractor speed drops to zero. The operator can make manual height adjustme

t will override the auto spread feature. The auto spread feature will resume after the manual correction is complete. I

ONE" mode, manual adjustments that move the height of the blade past the normal target height for auto spread func

l become the new target height for that pass. The auto spread function does not lower the blade. The auto spread fun

l compensate for the pitching of the blade. The auto pitch will affect the height of the blade during the auto spread

eration. While the pitch of the blade is being changed, the auto pitch function changes the height of the cutting edge. T

rections will be added to the adjustments of the auto spread feature.

te: The operator will be prompted to save the current settings of operation.

te: The pitch forward movement of the blade will lower the height of the blade cutting edge. If the blade is loaded fu

blade is loaded with heavy material, the auto spread function may not function properly. The auto spread function m

be able to raise the blade in time in order to compensate for the change in the height of the blade cutting edge. This

ndition is caused by the forward pitching of the blade. In this situation, the operator must tilt the blade manually in ord

move some of the material from the blade.

uto Return

e auto return function is intended to raise the blade during the return portion of the dozing cycle. This will avoid back

gging of the blade. The height of the blade is set by the operator and the information can be stored within the operat

file.

e auto return feature is activated by pressing the mode select switch on the blade control handle or the auto return fe

ctivated by shifting into reverse. The auto return does not affect the pitch of the blade. The auto return controls the h

he blade only. The auto return will bring the blade to full height first. After the auto pitch feature has reset the blade p

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auto return feature will return the blade to a preset height. The return height setpoint is a factory default or the opera

y set the return height setpoint by using the Advisor. This custom setting may be stored in a custom profile. The auto

urn feature will stop once the target position is reached. Then, the ABA will cycle to the "Return" mode. The blade w

p, if the operator makes a manual change to the height of the blade during the automatic operation. The cycle may be

umed by pressing the mode select switch.

perator Override Of The Automated Blade Assist Function

e operator override is a feature of the implement system that overrides the ABA during certain conditions. Any manuntrol of the blade will take priority over the ABA functions. If the operator performs manual movement of the blade,

owing effects will occur to the feature that is active:

to Pitch Feature - If the operator manually adjusts the angle of pitch, the Auto Pitch Feature should hold any autom

ustment of the blade pitch unless the machine is in the "spread" mode. The auto pitch feature will hold the blade pitch

ifferent mode has been selected by using the mode select switch or shifting to another gear. However, the auto pitch

ture will calculate the pitch position of the blade in order to position the tilt cylinders correctly for the next segment. I

chine is in the "spread" mode, the auto pitch feature will continue to pitch the blade to the target pitch position. The

ching of the blade will be performed immediately after the operator completes the adjustments in pitch. If the operato

kes a correction to the tilt, the auto pitch feature should delay the adjustments to the blade pitch. When the operatorcorrection to the tilt, the auto pitch feature will finish the adjustments to the blade pitch.

to Return Function - If the operator makes an adjustment to the height of the blade within the first second of initiat

"Resetting", the ABA will continue to control the blade. The ABA will stop controlling the height of the blade when

erator continues to adjust the height of the blade beyond one second. The Auto Return Function will be suspended f

t of the return cycle.

to Spread Feature - If the machine is in the "spread" mode, the ABA will allow the operator to control the height o

de unless the operator releases the blade control handle. If the blade control handle is released, the auto spread feat

l raise the blade in order to maintain the desired height of the blade.

utomatic Pitch Compensation Function

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scription of ABA Operations

F - Auto Pitch Function

BA - Auto Blade Assist

BRF - Auto Blade Return Function

F - Auto Spread Function

ade Float

e blade float is an operating mode. The blade is allowed to "float" rather than being controlled by the hydraulics. The

owing instructions will assist in the operation of the blade float function:

activate "FLOAT", push the joystick forward past the joystick detent and release the joystick and allow it to return

ter. The "FLOAT" indicator in the instrument cluster will now be lit and the blade will be in "FLOAT".

LOAT" is disabled by moving the handle in order to raise or lower the blade. The feature for "Blade Float" can be tu

in Advisor in the setup area. Refer to table 1.

1. The float feature may be disabled and system operations will return to the default operation if any of the followin

events occur:

a. The blade control handle is moved in order to raise or lower the blade.

b. Power to the implement control is turned off. The "float" key (9) is pressed.

c. A calibration procedure or a diagnostic test is started.

d. A failure which caused the system to be disabled

e. The actuation of the implement lockout switch

2. The float feature will be overridden temporarily, if a request is made for ripper functions. The blade will stop at t

current height, if a request is made for ripper functions. The blade operation will return to float after the ripper fun

has been performed.

he ABA is armed, the float feature will override the ABA. The status of the ABA will change to being armed and the

A will not be active. The ABA will remain in the "armed" state. The ABA is not "active" when the blade float functio

"active".

te: If the pilot pressure is low or the handle required calibration, "Float" may not function properly.

uto Carry Function

ring a typical dozing cycle, an operator must make constant adjustments to the height of the dozer blade in order to

intain the optimum blade load. The peak operating efficiency is achieved near the maximum tractive effort for the ma

change in the operating condition will reduce the capabilities of the machine to maintain an optimum efficiency. Auto

l provide the operator with a semiautomatic method of controlling the blade load. Auto carry can improve productiv

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o carry can reduce the slip on a Track-Type Tractor during the carry segment of a typical dozing cycle.

lade Settings



e Advisor is an integral part of all electronic machine operations. The Advisor acts as an interface between the opera

d the implement ECM. The present status of the implement functions are shown to the operator. An understanding of

visor is necessary in order to make full use of the Implement Electronic Control System. For more information, see

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stem Operation, RENR8170, "Monitoring System".

tting The Spread Rate

e configuration for the spread rate is used to adjust the ratio of "blade raise" and "blade pitch". The operator will con

setpoint for the spread rate. The setpoint is used in order to regulate the spread rate of the material.

e configuration for the spread rate is accessed by the following steps:

1. Select "Settings" on the Advisor.

2. Select the Implement ECM.

3. Select Spread Rate.

4. Press the left or right arrow keys in order to change the spread rate.

tting The Blade Response

e response configuration of the blade is used in order to select the speed of blade movement. The setpoint for the bla

ponse will allow the operator to choose the speed of the blade. The setpoint is also used whenever the blade contro

ndle is moved. There are three options for this setpoint. The three options are listed: standard, fine and fast.

fer to 1 for configuring the desired blade response.

te: In order for the configuration for the blade response to function correctly, the blade raise solenoid and blade low

enoid valves must be within proper calibration.

tting The Setpoints For The Auto Blade Pitch

e Auto Blade Pitch settings will allow the operator to change the setpoints for the following AUTO pitch functions: "l

rry" and "spread". The position of the blade pitch must be reset in order to change the setpoints. The setpoints will n

ange unless the position of the blade pitch has just been reset.

reset the blade pitch, run the engine at high idle and ensure that the implement lockout switch is in the UNLOCKED

sition. Turn on AUTO pitch and follow the prompts in the message center. When the "READY TO CARRY" messa

pears, blade pitch has been reset.

er an option is selected, A new corresponding message with a value of percentage about the pitch will be shown. A

ue corresponds to fully retracted tilt cylinders. A 100 value corresponds to fully extended tilt cylinders. At this point,

erator adjusts the blade pitch to the desired position by using the pitch back switch and the pitch forward switch on

de control handle. When the blade is at the desired position, the operator uses the "OK" key to accept the new setp

e Advisor will give a momentary message about the setpoint that is being changed and then return to the normal disp

s process of selecting an option and then adjusting the pitch can be similarly repeated for the second and third option

ese options are listed:

"2:SET CARRY PITCH"

"3:SET SPREAD PITCH"

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mmand is being requested. The ECM will energize the lockout solenoid automatically, if the implement lockout switch

NOT LOCKED position and the throttle switch is in the high idle position.

e pin puller is not controlled by the ECM. The pin puller will function regardless of the implement lockout solenoid. T

is used to view the status of the rear attachment. The possible selections are as follows:

Dual Axis Ripper

Single Axis Ripper

Towed Scraper

Winch

NOT INSTALLED

r more information, see Troubleshooting, RENR8056, "Configuration".

pper Auto Stow Function

additional function for the ripper is the auto stow function. The auto stow function is an aid to the operator. The auto

ction will raise the ripper automatically. The auto stow function is also designed to retract or extend the ripper. The

erator can press the ripper auto stow switch, rather than holding the ripper lift control lever in the RAISE position. T

M will raise the ripper automatically. The ripper auto stow function allows the operator to perform other tasks while

per is automatically stowed. The operator can configure the auto stow function to raise the ripper. The operator can

nfigure the auto stow function so that the shank can be raised and the shank can retract or extend. refer to table 1. Th

o stow configuration can be stored in an operator profile.

te: The auto stow function will be delayed if the blade is manually adjusted. This adjustment may cause incomplete

wing of the ripper.

ther Features

ontrols Active Test

e controls active test is designed to prevent any unexpected movement of the implements, after the key start switch i

ned to the ON position. The controls active test is one of the first tasks that is executed by the implement ECM. The

l start when the following conditions have been performed:

Transition of the key start switch from the OFF to the ON position

Engine cranking

The implement lockout switch is changed from being LOCKED to being NOT LOCKED.

A calibration or a diagnostic test has been completed.

e ECM will test the following items during the controls active test: blade control handle and ripper control handle. A

ction of the blade control handle or the ripper control handle that fails the controls active test will be disabled.

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e components that are tested during the controls active test are listed:

Sensor (blade control raise/lower)

Sensor (blade control tilt)

Switch (pitch back)

Switch (pitch forward)

Trigger switch (pitch forward)

Sensor (ripper raise/lower)

Sensor (ripper shank in/out lever)

Switch (ripper auto stow function)

e possible causes for failing the controls active test are listed:

The blade control handle is not in the HOLD position.

The ripper control handle is not in the HOLD position.

ontrols Active Test Override

e feature of controls active test override is provided as an aid to the service person. The service person uses this feat

en the radiator guard hydraulically. The controls active test override will disable the controls active test. The controls

ive test override allows the implements to be active during engine cranking. You should use caution when you use the

ntrols active test override. The implements are always active. The controls active test override is activated by installin

nk without inject plug in the engine harness.

e crank without inject feature provides a means of cranking the engine without starting the engine. A harness plug is

ated close to the engine ECM. The harness plug is changed in order to enable this feature. The crank without the inje

g is read only when the key is in the ON position. The engine ECM sends a signal to the implement ECM while the

eing cranked. The signal is telling the implement ECM that the engine is cranking without injecting fuel. The impleme

M will override the controls active test and the ECM will allow activation of the electro-hydraulic system, when the

plement ECM reads this status. This status can be viewed on the Caterpillar Electronic Technician (ET).

ormation about the engine cranking without injecting fuel is available in System Operation and Troubleshooting Engin

r Caterpillar Built Machines for the C15 Engine.

mplement Lockout

e feature of implement lockout is used to deactivate the pilot supply of the implement system. The implement lockout

enoid is de-energized when the operator places the implement lockout switch in the LOCKED position. This solenoi

ve blocks supply oil to the implement manifold. No pilot pressure will be available for initiating movement of the blad

ripper. This switch should be in the LOCKED position when the following conditions exist:

The operator is exiting the machine.

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The machine is being serviced.

The machine is left unattended.

te: The implement lockout solenoid is temporarily deactivated if the engine speed is less than 800 rpm. The ECM w

omatically activate the lockout solenoid if the following conditions are present: The implement lockout switch is not

ked. and The speed of the engine is greater than 800 RPM.

e solenoid is energized during normal machine operation. The pin puller assembly will operate regardless of the imple

kout feature.

owering The Implement With The Engine OFF

wering the implement with the engine OFF is a feature that will allow the implements to be lowered, when the engine

operation and the key start switch is in the ON position. The ECM provides electrical power for the sensors, switch

enoid valves. With the key start switch in the ON and the implement lockout switch in UNLOCKED position, the

plements can be lowered by moving the blade control handle or the ripper control handle into the LOWER position.

plement will then lower until the implement is at rest.

te: With the engine off and the key start switch in the OFF position, all solenoid valves are de-energized. This prote

ainst downward drift when the implements are left in a raised position.

mp Home Mode

e "Limp Home Mode" allows the operator to move the implements if a failure occurs in order to move the machine t

a for service. The limp home mode will allow the movement of all implements if the system is capable of the movem

te: The failure of an implement solenoid may cause an implement to move unexpectedly. For example, the blade wil

wer when the limp home mode is activated and the blade lower solenoid valve is shorted to the + battery.

low the following steps in order to change the auto stow configuration:

1. From the "Home" menu, scroll to "Service" and press the "OK" button on the keypad.

ect "Limp Home" from the menu items.

1. Select the desired Limp home mode.

Blade Raise

Blade Tilt

Blade Pitch

Ripper Raise

Ripper Shank

Winch In/Out

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Winch Drum

e operator can scroll through each option by using the arrow keys. The "OK" key is pressed in order to select the op

e display of the menu will change to one of the following examples, after the option has been selected:

e disconnection of a failed component may be necessary in order to use the "Limp Home Mode", if the failed compo

vents the use of this mode.



e implements will move in small increments when the arrow key for the desired direction is pressed. The correspond

enoid will respond to the arrow key with a predetermined pulse time. The movement of the implement will be affecte

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speed of the engine. The controls of the implement are not used for the limp home mode. The "OK" key is pressed

limp home mode is no longer needed. The operation of the "Limp Home Mode" will take priority over all other func

diagnostic code will not disable the "Limp Home Mode". All other implement functions will be available through norm

erations of the blade control handle or ripper control handle.

hree Function Auxiliary Application

te: The hydraulic configuration external to the tractor for this option is not supplied.

e three function auxiliary application provides for a custom application to be hitched to the rear of the tractor. This

nfiguration requires the tractor to be setup in the three function auxiliary arrangement. This configuration consists of

anges to the software and to the hardware. A three axis joystick is required to take full advantage of this configuratio

s application utilizes three valve sections for auxiliary applications. Each of these sections are identical. These section

able of providing full pump flow and have an adjustable pressure limiter. The pressure limiter can be used to limit the

ssure that is sent from the attachment from the implement pump. The pressure limiters do not act as a relief valve. T

any relief valves in these valve sections. This configuration will provide two hydraulic output ports at the rear of the

ctor, per joystick axis.

e hydraulic system should be configured by the customer to control the custom tool. When the joystick is moved in ts, valve one should be actuated. When the joystick is moved in the X axis, valve two should be actuated. The thumb

uld actuate valve three.

pending on the direction of joystick actuation, there should be hydraulic flow available at the appropriate ports at the

he tractor. For each of the valves, the hydraulic output should be proportional to the displacement of the respective

stick from the center.

ve careful consideration when you adapt the three function auxiliary circuit to work with your application. The require

he hydraulic flow for each function of the application must be carefully considered.

e three function auxiliary application is selected within the ET configuration screen. Select "Three Function Auxiliary"

configuration of the "Rear Attachment Installation Status". After the selection has been made, the power must be cy

order to enable the application.

owed Scraper Application

te: The wiring and the hydraulic configuration for this option are not supplied.

e towed scraper application provides a modified ripper hydraulic control system in order to operate the towed scrap

wl. The configuration is supported in the electronic software. The configuration requires a minor modification of thectrical system in order to make use of the configuration.

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cation of the Implement ECM


ctronic Control Module (ECM)

e hydraulic system should be configured by the customer in order to provide the bowl raise/lower function on the thu

er of the ripper control. The hydraulics should be configured to provide the bowl ejector in/out function on the finger

he ripper control. The configuration would use the ports of the ripper raise/lower function in order to provide the pridraulic power to the scraper bowl. In addition, this configuration would use the driver of the auxiliary solenoid in orde

ntrol an additional electrohydraulic solenoid. The electrohydraulic solenoid will switch the bowl raise/lower function t

wl ejector in/out function.

ring the command for the finger lever from the ripper control, the implement electronic control will energize a driver

xiliary solenoid. The electrical connector for the auxiliary solenoid driver is not connected to the machine wiring. The

tomer must wire the auxiliary solenoid. The signal to the solenoid is wired to pin 61 on the connector "J1" on the

plement ECM.

e wiring and the hydraulic configuration for the towed scraper application are not supplied because of the wide range

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ssible hydraulic configurations. Give careful consideration when you adapt the scraper bowl in order to work with th

wed scraper application. The following considerations should be made:

The driver for the auxiliary solenoid has normal Caterpillar diagnostics. The diagnostics depend on using a specif

type of coil for the solenoid valve. The diagnostics have been tested for a 145-1144 Coil and a 156-6173 Coil.

Another coil may cause a false diagnostic. A coil with a resistance between 7 ohms and 9 ohms is likely to functi

with the diagnostics. The electrical diagnostics perform the following checks: open circuits, short circuit to groun

short circuit to the battery.

The driver of the solenoid will supply a maximum of 1 amp when this solenoid is on. The auxiliary solenoid driver

not adjustable.

The requirements of the hydraulic flow for the scraper bowl must be carefully considered. Most solenoid valves w

only supply pilot pressure to another valve that will do the actual splitting of the flow.

me delays have been included in the configuration of the towed scraper application in order to minimize pressure spik

hydraulic system. When the finger tip lever is activated, the auxiliary solenoid will be activated for 160 ms before the

per raise solenoid. When the finger tip lever is released, the pressure compensation override solenoid will shut off. Th

ripper raise solenoid and the auxiliary solenoid will shut off 60 ms later.

he configuration of the towed scraper application, the calibrations of the ripper solenoid are disabled and the calibra

not required. The ripper shank in solenoid and the ripper shank out solenoid are disabled and the diagnostic of the

o stow switch is disabled. All of the other diagnostics operate normally in this configuration.

e towed scraper application is selected within the ET Configuration Screen. Select the "Towed Scraper" application

configuration of the "Rear Attachment Installation Status". After the selection has been made, the power must be cy

he implement control in order to enable the towed scraper application in the software.

Table 3

The Towed Scraper Application and the Ripper Control Handle

Function Ripper Control

Handle

PCO (1)

Auxiliary Solenoid

Raise Solenoid

Lower Sole

craper Bowl Raise Ripper Raise FunctionActive Active

craper Bowl

owerRipper Lower Active Active

jector Extend Ripper Shank In Active Active Active

jector Retract Ripper Shank Out Active Active Active

) The Pressure Compens ation Override Solenoid

te: All of the calibrations of the ripper solenoid are disabled. In addition, the ripper auto stow function is disabled.

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