797F ECM Configurable Parameters {1901, 4800, 4808, 5701, 7490, 7494, 7601, 7603, 7610, 7620} Caterpillar

Off-Highway Truck/Tractor

797F (S/N: LAJ1-UP; WSP1-UP)

Introduction

The following Special Instruction provides information about ECM parameters and their function.

The following items are necessary to perform ECM configurations:

• Cat ET Version 2013B-v1.0 or later

• Communications Adapter (CAII) or Communications Adapter (CAIII)

Important Safety Information

Work safely. Most accidents that involve product operation, maintenance, and repair are caused by failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing potentially hazardous situations before an accident occurs.

A person must be alert to potential hazards. This person should also have the necessary training, skills, and tools to perform these functions properly.

Safety precautions and warnings are provided in this instruction and on the product. If these hazard warnings are not heeded, bodily injury or death could occur to you or to other persons. Caterpillar cannot anticipate every possible circumstance that might involve a potential hazard. Therefore, the warnings in this publication and the warnings that are on the product are not all inclusive.

If a tool, a procedure, a work method, or operating technique that is not recommended by Caterpillar is used. Ensure that the tool, procedure, work method, or operating technique is safe to use. Ensure that the product will not be damaged or made unsafe by the operation, lubrication, maintenance, or the repair procedures that are used.

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Do not operate or work on this machine unless you have read and understand the instructions and warnings in the Operation and Maintenance Manual. Failure to follow the instructions or heed the warnings could result in injury or death. Contact any Caterpillar dealer for replacement manuals. Proper care is your responsibility.

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Before service work is begun, park the machine on a hard level surface. Block the wheels of the machine so unexpected movement will not occur. Unexpected movement of the machine can cause personal injury or death.

Illustration 1	g06113873
Typical View of ECM Screen

Advisor ECM

Illustration 2	g06113922
Advisor ECM Menu Screen

ECM Identification Parameters

Equipment ID

Illustration 3	g06113929
Equipment ID Screen

This parameter is used to allow the customer / dealer to program a machine equipment ID for service reference in ET.

Table 1

Default Value	Blank
Allowable Programmable Value	15 Character Limit
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

This parameter provides the customer / dealer another means of tracking and reporting a machine based on mine specific numbering schemes via the ET service tool.

Product ID

Illustration 4	g06113938
Product ID Screen

This configurable parameter is used to allow the customer / dealer to program a machine PRODUCT ID for automatic selection of machine software application. THIS IS THE SERIAL NUMBER OF THE MACHINE.

Table 2

Default Value	Blank
Allowable Programmable Value	15 Character Limit
Password Protected	No
ECM Replacement Capable	No
Fleet Configuration Capable	No

The parameter is used by the other controllers to select the appropriate software configuration for the model of the machine. The machine serial number (for example, LAJ00141) should be entered here if not already present.

Monitoring System Parameters

Information Units Status

Illustration 5	g06113942
Information Units Status Screen

This configurable parameter is used to set the units displayed as English or Metric.

Table 3

Default Value	English
Allowable Programmable Value	Metric
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

Provide a means to display the different units utilized in various parts of the world.

Display Language Status

Illustration 6	g06113976
Display Language Screen

This configurable parameter is used to set the language displayed.

Table 4

Default Value	English
Allowable Programmable Value	Selectable
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

The parameter is used to adjust the display language to suit the operator.

Service Mode Enable Code

Illustration 7	g06113982
Service Mode Enable Screen

This configurable parameter is used to enter service mode by a technician.

Table 5

Default Value	1234
Allowable Programmable Value	Any 4-digit code
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

The parameter is used as a passcode to enter service mode on the display. The code should not be provided to operators.

Brake ECM

Illustration 8	g06113992
Brake ECM Menu Screen

Brake System

Maximum Desired Engine Retard Speed

Illustration 9	g06113997
Maximum Desired Engine Retard Speed

This configurable parameter is used to set the maximum desired engine retarding speed. The speed is used by the Automatic Retarding Control (ARC) feature when the feature is on and in retarding mode.

Table 6

Default Value	1850 RPM
Maximum Allowable Programmable Value	1850 RPM
Minimum Allowable Programmable Value	1750 RPM
Incremental Adjustment Value	1 RPM
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	Yes

The parameter is used for Automatic Retarding Control (ARC). The parameter can be set for customers who may want to retard at a reduced speed for fleet matching.

Additional Hoist Overrunning Load Control System Installation Status

Illustration 10	g06114003
Additional Hoist Overrunning Load Control System Installation Status Screen

This configurable parameter enables a feature that uses a valve that diverts extra hydraulic oil flow to the hoist cylinders. This feature prevents a vacuum from developing in the cylinders when the bed rises faster than the flow going in to the cylinder. This scenario occurs in cold climates where the payload is massed together preventing a uniform evacuation from the bed of the machine.

Table 7

Default Value	Not Installed
Allowable Programmable Value	Installed
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No
Reference Information	Special Instruction, REHS9304, "Field Procedure to Increase the Hydraulic Flow to the Hoist Cylinders on Certain 797F Off-Highway Trucks"

Note: To set this parameter, another configurable parameter, the Brake Cooling Pump Installation Status, must be configured to INSTALLED.

The parameter is used to prevent the body from harshly contacting the top of the cylinder heads after sudden payload emptying.This parameter is typically used for applications in cold climates that can observe payload “loafing” scenarios.

Differential System

Differential High Speed Fan Install Status

Illustration 11	g06114022
Differential High Speed Fan Install Status Screen

This configurable parameter enables a feature that uses an attachment fan to cool the differential.

Table 8

Default Value	Not Installed
Allowable Programmable Value	Installed
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No
Reference Information	Special Instruction, REHS6071, "Procedure to Install the Rear Axle Oil Cooler on the 797F Off-Highway Truck"

This option provides a cooler to the Continuous Rear Axle Filtration. The oil cooler is located above the rear differential housing of the truck. This option is a great choice for trucks in high speed, long haul applications where high temperatures can be generated in the rear axle.

Cooling System

Brake Cooling Pump Installation Status

Illustration 12	g06114029
Brake Cooling Pump Installation Status Screen

This configurable parameter enables a feature that uses an extra brake cooling pump for certain configurations of machines. Shallow Grade machines do not have the brake cooling pump installed and Steep Grade machines should have the pump installed.

Table 9

Default Value	Not Installed
Allowable Programmable Value	Installed
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No
Reference Information	Special Instruction, REHS6097, "Procedure to Convert Certain 797F Off-Highway Trucks From Shallow Grade to Steep Grade"

This parameter is typically used for downhill hauling applications. There are other features that are modified depending on this parameters setting. When the parameter is set to installed, an extra brake cooling filter bypass switch (right brake cooling filter bypass) will be monitored for plugging events. The installed parameter selection will also cause the controller to select an application in the software that has a higher cooling fan top speed. This parameter signifies extra retarding is expected, so more cooling will be needed.

Note: Steep Grade is standard with LAJ224-Up, WSP1-Up. Therefore any trucks above this serial number range or any trucks retrofitted to Steep Grade should be set to installed status.

Chassis ECM

Illustration 13	g06114032
Chassis ECM Menu Screen

Machine Configuration

Equipment ID

Illustration 14	g06114038
Equipment ID Screen

This configurable parameter is used to allow the customer / dealer to program a machine equipment ID for service reference in ET.

Table 10

Default Value	Blank
Allowable Programmable Value	15 Character Limit
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

This parameter provides the customer / dealer a means of tracking and reporting a machine based on mine specific numbering schemes via the ET service tool.

Starting System Configuration

Illustration 15	g06114049
Starting System Configuration Screen

This configurable parameter is used to set the type of starting system.

Table 11

Default Value	Air Start
Allowable Programmable Value	Electric Start
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

Currently, the 797F is only sold with air start systems. If air start is selected, the machine system air pressure will be monitored for low-pressure events. An electric start system is being developed. This parameter will enable the software to be reconfigured when needed.

Note: With the electric start option, there is no air system on the truck, so the machine system air pressure sensor will not be monitored.

This configurable parameter is also used to determine the crank cycle rest interval. Changing this parameter setting will automatically adjust the default crank cycle rest interval setting. If the customer / dealer wants to modify the crank cycle rest interval further, that option is provided as well and described in the following section.

Crank Cycle Rest Interval

Illustration 16	g06114056
Crank Cycle Rest Interval Screen

This configurable parameter is used with the starter re-engagement delay feature. The feature is designed to prevent the starter from engaging too quickly in the event of a failed start attempt. The default value depends on the starting system configuration parameter setting of air or electric.

Table 12

Default Value for Air Start	15 (Seconds)
Maximum Allowable Programmable Value	30 (Seconds)
Minimum Allowable Programmable Value	0 (Seconds)
Incremental Adjustment Value	1 (Seconds)
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No
Default Value Electric Start	2 (Seconds)
Maximum Allowable Programmable Value	30 (Seconds)
Minimum Allowable Programmable Value	0 (Seconds)
Incremental Adjustment Value	1 (Seconds)
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

This parameter was added to modify the start control logic to eliminate gear gnashing of the starter and engine flywheel. Extensive testing and field validation was completed to determine the default values for each type of starting system.

Note: Setting the parameter to 0 seconds disables the feature. Caterpillar Inc. does not recommend disabling this feature.

Autonomous Control System Enable Status

Illustration 17	g06114065
Autonomous Control System Enable Screen

This configurable parameter is made available for further machine development. Once the machine has an autonomous systems installed, the technician can enable the system for autonomous use.

Table 13

Default Value	Disabled
Allowable Programmable Value	Enabled
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

This parameter will also be used to disable the autonomous system for service / troubleshooting purposes.

Operator Seat Belt Monitor Installation Status

Illustration 18	g06114093
Operator Seat Belt Monitor Installation Status Screen

This configurable parameter is used to enable the operator seat belt monitoring system. Effective with LAJ319-Up and WSP113-Up this parameter should be set to installed. Prior to these serial numbers the system should be set to not installed. There currently is not a procedure to retrofit this system.

Table 14

Default Value	Not Installed
Allowable Programmable Value	Installed
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No
Reference Information	TEKQ0986(1)

(1)	Refer to cmic.cat.com or your local Caterpillar dealer for this publication

This system will enhance product safety by providing a warning (both audible and visual) for two different cases. The first case is when the operator has released the parking brake without having the seat belt fastened. In the second case the warning will be shown when the seat belt is unfastened without the operator setting the parking brake first. This parameter enables the events associated with seat belt monitoring.

Information Systems

VIMS Analysis Control Module Installation Status

Illustration 19	g06114098
VIMS Analysis Control Module Installation Status Screen

This configurable parameter is used to enable the conversion of a single VIMS ECM system. When a single VIMS ECM system becomes available, new hardware can be installed on the machine and the setting can be programmed to “not installed”. This setting means that the second VIMS ECM is not installed and all machine ECM’s should request payload parameters from the new single ECM.

Table 15

Default Value	Installed
Allowable Programmable Value	Not Installed
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

This parameter provides a means to update to a different version of telematics in the future.

Hoist System

Body Up Gear Limit

Illustration 20	g06114102
Body Up Gear Limit Screen

This configurable parameter is used to set the maximum top gear limit when the body is up. Severe damage can be done to the frame if the machine is used with the body up. This parameter can be used to help protect the frame, but still allow the customer to move the machine if necessary. The default value is set to a conservative first gear because Caterpillar does not recommend moving the machine with the body up during normal operation.

Table 16

Default Value	1
Maximum Allowable Programmable Value	3
Minimum Allowable Programmable Value	1
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	Yes

This parameter provides some protection to the frame in case an unexperienced operator is moving the machine with the body up. The parameter is programmable to allow for spreading operations with the mine site taking responsibility for possible frame damage.

Hoist System Enable Status

Illustration 21	g06114105
Hoist System Enable Status Screen

This configurable parameter is used to enable the hoist system. By default the system is disabled until the body is pinned to the machine. Once the body is installed, the service technician can enable the system for use.

Table 17

Default Value	Disabled
Allowable Programmable Value	Enabled
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

This parameter allows for safe installation of the body.

Hoist Pressure Monitoring System Installation Status

Illustration 22	g06114109
Hoist Pressure Monitoring System Installation Status Screen

This configurable parameter was added to aid dealers in trending hoist pressures over time.

Table 18

Default Value	Not Installed
Allowable Programmable Value	Installed
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

This parameter was added to aid dealers and customers to trend hoist system pressures over time. This information could help capture a failing hoist system early so preemptive maintenance could be performed.

Hoist Cylinder Rod End Relief Pressure Set Point

Illustration 23	g06114136
Hoist Cylinder Rod End Relief Pressure Set Point Screen

The configurable parameter is used when the Hoist Pressure Monitoring System Installation status is set to Installed.

Table 19

Default Value	23.2 MPa (3365 psi)
Maximum Allowable Programmable Value	28.2 MPa (4090 psi)
Minimum Allowable Programmable Value	23.2 MPa (3365 psi)
Incremental Adjustment Value	1 MPa (145psi)
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

This parameter works with the hoist pressure monitoring system. Since machines can be hydraulically tuned to different pressure settings, this parameter can be used to match the hydraulic system. Setting this parameter to the appropriate value will make the associated events meaningful.

Auto Lube

Auto Lube Interval

Illustration 24	g06114143
Auto Lube Interval Screen

This configurable parameter is used to program the Auto Lube feature interval.

Table 20

Default Value	60 Minutes
Maximum Allowable Programmable Value	120 Minutes
Minimum Allowable Programmable Value	2 Minutes
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

The Interval Timer is the amount of time between lube cycles. The interval time ensures that the operating time between lube cycles is consistent and prevents unnecessary lubrication when the machine is not moving.

Oil Renewal System Parameters

Engine Oil Renewal System Installation Status

Illustration 25	g06114147
Engine Oil Renewal System Installation Status Screen

This configurable parameter is used to purchase the ORS feature.

Table 21

Default Value	Not Installed
Allowable Programmable Value	Installed
Password Protected	Yes
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

This parameter allows for the purchase of the attachment. The parameter does not enable the feature. To eliminate possible multiple invoices for repeated installation, this feature is stored in the chassis ECM. The engine ECM is more often replaced during component replacement programs.

Engine Oil Renewal System Enable Status

Illustration 26	g06114149
Engine Oil Renewal System Enable Status Screen

This configurable parameter is used to enable ORS feature after the hardware is assembled on the machine.

Table 22

Default Value	Disabled
Allowable Programmable Value	Enabled
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No
Reference Information	Systems Operation, RENR2223, "Oil Renewal System for Off-Highway Trucks"

This parameter allows for enabling and disabling the feature for service without the need to “install” the feature from the parameter above. The rate at which ORS controls is located in the engine configuration parameters.

Idle Shutdown Timer

Idle Shutdown Timer System Installation Status

Illustration 27	g06114154
Idle Shutdown Timer System Installation Status Screen

This parameter is used to purchase and activate the idle shutdown timer feature. If equipped, a rocker switch is installed in the overhead controls to use with the software.

Table 23

Default Value	Not Installed
Allowable Programmable Value	Installed
Password Protected	Yes
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

The purpose of this feature is to allow the engine turbo chargers to cool down properly after operation. The cool down period is intended to extend component life. When used, the feature will keep the engine running for a duration of time after the Key switch is turned OFF. After the time expires, the engine idle shutdown relay will be turned off and the machine will turn off.

Idle Shutdown Time

Illustration 28	g06114157
Idle Shutdown Time Screen

This configurable parameter allows the customer to change the default setting to a lower value if desired. The lower value could save fuel over a long time.

Table 24

Default Value	5 Minutes
Maximum Allowable Programmable Value	5 Minutes
Minimum Allowable Programmable Value	3 Minutes
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

When Engine Idle Shutdown is first installed on an ECM, the default duration is 5 minutes. The duration is configurable via the service tool. Valid entries for this configuration are 3, 4 or 5 minutes. If the feature is installed, then reprogrammed to a different duration, uninstalled and then reinstalled, the feature shall initialize to the value last programmed.

Fuel Level Sensor Mounting Type Configuration

Illustration 29	g06298521
Fuel Level Sensor Mounting Type Configuration Screen

This parameter allows the ECM to know what style of fuel level sensor is on the truck.

Table 25

Default Value	Not Installed
Allowable Programmable Value	Installed
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No
Reference Information	Special Instruction, SEHS0050, "Procedure to Install a Top Mounted Fuel Level Sensor on Certain 797F Off-Highway Trucks"

When a machine is retrofitted with a top mounted fuel level sensor, the parameter must be set to Installed.

• Top - Top Mount Fuel Level Sensor expected.

• Bottom - Bottom Mount Fuel Level Sensor expected.

Configuration Group 1

Body Maximum Angle Limit

Illustration 30	g06399781
Body maximum angle limit screen

This configurable parameter is used to set the maximum body raise angle of the body. This feature helps prevent tail section damage due to berm contact for certain body designs.

Table 26

Default Value	57 degrees
Allowable Programmable Value	45 to 57 degrees
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No
Reference Information	Testing and Adjusting, KENR8381, Position Sensor (Truck Body) - Adjust
	Testing and Adjusting, KENR8381, Relief Valve (Hoist Cylinder Head End) - Test and Adjust
	Testing and Adjusting, KENR8381, Relief Valve (Hoist Cylinder Rod End) - Test and Adjust

Engine ECM

Illustration 31	g06114445
Engine ECM Screen

ECM Identification Parameters

Equipment ID

Illustration 32	g06114447
Equipment ID Screen

This configurable parameter is used to allow the customer / dealer to program a machine equipment ID for service reference in ET.

Table 27

Default Value	Blank
Allowable Programmable Value	15 Character Limit
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

This parameter is used to identify a machine based on mine specific numbering schemes.

Engine Serial Number

Illustration 33	g06114451
Engine Serial Number Screen

This configurable parameter is used to program the serial number of the engine.

Table 28

Default Value	Blank
Allowable Programmable Value	15 Character Limit
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

Engine Configuration

Ether Control

Illustration 34	g06114452
Ether Control Screen

This configurable parameter is used to program whether the ether aid valve is controlled by software.

Table 29

Default Value	Disabled
Allowable Programmable Value	Enabled
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

Provides automatic ether injection to optimize cold engine starts.

Ether Solenoid Configuration

Illustration 35	g06114458
Ether Solenoid Configuration Screen

This configurable parameter is used to program how the ether control works.

Table 30

Default Value	Not Installed
Allowable Programmable Value	Continuous Flow
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

The parameter provides retrofit ability.

Oil Renewal System

Illustration 36	g06114476
Oil Renewal System Screen

This configurable parameter is used to adjust the oil renewal rate setting for continuous ORS.

Table 31

Default Value	0
Maximum Allowable Programmable Value	50
Minimum Allowable Programmable Value	-50
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No
Reference Information	Systems Operation, RENR2223, "Oil Renewal System for Off-Highway Trucks"

The chassis ECM controls the installation status of the feature. The oil renewal system must be set to "Installed" and "Enabled" in order for the system to become functional on the machine.

The rate of oil injection into the fuel system can be adjusted by connecting to the engine ECM. Factory passwords must be obtained for configuring the system.

The "Oil Injection Rate" is used to adjust the rate of oil that is injected into the fuel system. This parameter is used to establish a deviation from the baseline value that is programmed at the factory. This baseline value for oil consumption is based on the percentage of engine oil that is scheduled for consumption by the engine. This quantity of oil is directly related to the load factor or the percentage of fuel consumed by the engine over a specific time period.

Increment this parameter to increase the percentage of engine oil that is metered into the fuel. Decrement this parameter to decrease the percentage of engine oil that is metered into the fuel.

The actual oil delivery into the fuel system is calculated by the engines ECM. The adjustment is partially based on the following items:

• Engine load factor

• Engine oil pressure

• Jacket water coolant temperature

The default setting for the "Oil Injection Rate" is zero when the system is initialized. At this setting, every 3.78 L (1 US gal) of fuel that is burned there will be 0.5 percent of oil that is injected. Only adjust the rate of metering if the S·O·S Oil Analysis determines that additional adjustment for the system is needed. The range of the parameter is from a value of "-50" to "+50". Entering "-50" will decrease the default rate of oil injection by 50 percent. Entering "+50" will increase the default rate of oil injection by 50 percent.

Engine Pre-Lube

Illustration 37	g06114485
Engine Pre-Lube Screen

This configurable parameter is used to program whether the engine pre-lube feature is used.

Table 32

Default Value	Enabled
Allowable Programmable Value	Disabled
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

Provides a means for customer to disable feature if needed for troubleshooting other systems.

Electric Fuel Transfer Pump Installation Status

Illustration 38	g06114491
Electric Fuel Transfer Pump Installation Status Screen

This configurable parameter is used to program the installation status of the electrically driven fuel transfer pump for the Clean Fuel Module.

Table 33

Default Value	Not Installed
Allowable Programmable Value	Installed
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No
Reference Information	Special Instruction, REHS9559, "Procedure to Update the Low Pressure Fuel System on Certain 797F Off-Highway Trucks"

The default value is set to “Not installed” to provide backwards compatibility with machines that have not retrofitted the hardware. Once the hardware is installed, the parameter should be changed to “installed”. Once the parameter is set to “installed”, the parameter will remain that way through future flash file updates.

Engine Coolant Temperature Control Module Installation Status

Illustration 39	g06114495
Engine Coolant Temperature Control Module Installation Status Screen

This configurable parameter is used to program the installation status of the Coolant Temperature Control Module (CTCM) on the engine.

Table 34

Default Value	Installed
Allowable Programmable Value	Not Installed
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

The water temperature regulator is controlled by the temperature control module. The temperature control module receives a temperature set point from the engine Electronic Control Module (ECM). As the water temperature regulator is opened, coolant is sent through the bypass line back to the inlet of the water pump. As the temperature of the coolant increases, the regulator is opened. When the regulators open, the coolant flow in the bypass line is restricted. Coolant is sent through the outlets to the radiator.

Desired Engine Coolant Temperature Configuration

Illustration 40	g06114500
Desired Engine Coolant Temperature Configuration Screen

This configurable parameter is used to program the configured temperature to which an engine coolant temperature control device attempts to control.

Table 35

Default Value	78° C (172.4° F)
Maximum Allowable Programmable Value	85° C (185° F)
Minimum Allowable Programmable Value	75° C (167° F)
Password Protected	Yes
ECM Replacement Capable	No
Fleet Configuration Capable	No

Transmission ECM

Illustration 41	g06114506
Transmission ECM Screen

ECM Identification Parameters

Equipment ID

Illustration 42	g06114510
Equipment ID Screen

This configurable parameter is used to allow the customer / dealer to program a machine equipment ID for service reference in ET.

Table 36

Default Value	Blank
Allowable Programmable Value	15 Character Limit
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

This parameter is used to identify a machine based on mine specific numbering schemes.

Transmission Serial Number

Illustration 43	g06114516
Transmission Serial Number Screen

This configurable parameter is used to program the serial number of the transmission.

Table 37

Default Value	Blank
Allowable Programmable Value	15 Character Limit
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

This parameter is used for tracking and sometimes is used by the software to select different shift strategies.

Torque Converter Serial Number

Illustration 44	g06114530
Torque Converter Serial Number Screen

This configurable parameter is used to program the serial number of the torque converter.

Table 38

Default Value	Blank
Allowable Programmable Value	15 Character Limit
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

This parameter is used for tracking and sometimes is used by the software to select different shift strategies.

Transmission Configuration

Machine Speed Limit

Illustration 45	g06114538
Machine Speed Limit Screen

This configurable parameter is used to program a machine speed limit if the mine site requires one.

Table 39

Default Value	0 km/h (0 mph) - No limit
Maximum Allowable Programmable Value	64 km/h (40 mph)
Minimum Allowable Programmable Value	11 km/h (7 mph)
Incremental Adjustment Value	1 km/h (0.62 mph)
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	Yes

This parameter is used to set a maximum machine speed limit based on mine site requirements.

Note: The maximum speed for a machine is 64 km/h (40 mph) regardless of the use of this parameter.

Economy Mode

Illustration 46	g06114539
Economy Mode Screen

This configurable parameter is used to select an engine 3550 HP setting in all gears.

Table 40

Default Value	0 - Off
Allowable Programmable Value	1 - On
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	Yes

This parameter is used to match fleet performance and / or possibly save some fuel in specific applications.

Loaded Machine Speed Limit

Illustration 47	g06114542
Loaded Machine Speed Limit Screen

This configurable parameter is used to allow the customer / dealer to program an alternate machine speed limit when the machine is loaded.

Table 41

Default Value	0 km/h (0 mph)
Maximum Allowable Programmable Value	64 km/h (40 mph)
Minimum Allowable Programmable Value	11 km/h (7 mph)
Incremental Adjustment Value	1 km/h (0.62 mph)
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

Note: The maximum speed for a machine is 64 km/h (40 mph) regardless of the use of this parameter.

Transmission Maximum Forward Gear

Illustration 48	g06114545
Transmission Maximum Forward Gear Screen

This configurable parameter is used to allow the customer / dealer to program a maximum forward gear if required by the mine site.

Table 42

Default Value	7
Maximum Allowable Programmable Value	7
Minimum Allowable Programmable Value	1
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	Yes

This parameter can be used to fleet match or maintain a maximum allowable mine speed by limiting the top gear allowable.

Machine Speed Correction Factor

Illustration 49	g06114554
Machine Speed Correction Factor Screen

This configurable parameter is used to allow the customer / dealer to program a correction factor regarding different-sized tires.

Table 43

Default Value	0
Maximum Allowable Programmable Value	81%
Minimum Allowable Programmable Value	-81%
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No
Reference Information	System Operation, KENR8394, "793F and 797F Off-Highway Trucks Power Train Electronic Control System"

The correction factor in intended to accommodate various changes in the nominal machine speed factor. For example, changes in tire size (due to non-standard sizes, inflation pressure differences), could cause the nominal machine speed calculation to be incorrect. The machine speed correction factor may not be changed unless the machine is stationary. The Machine speed correction factor may be calculated with the following formula:

Actual speed of the machine minus the reported speed of the machine divided by the reported speed of the machine. Then, multiply the total by 100%.

The actual speed of the machine is the true speed of the machine. As an example, this speed could be measured with a radar gun. The reported speed of the machine is the speed of the machine as calculated by the ECM. The reported speed of the machine is displayed by the monitoring system and in the Cat ET.

The following are two examples of the machine speed correction factor calculation:

The actual speed of the machine is 52 km/h (32.3 mph) and the reported speed of the machine is 50 km/h (31 mph). Then, [( 52 km/h (32.3 mph) - 50 km/h (31 mph)) ÷ 50 km/h (31 mph)] × 100%. The machine speed correction factor is +4.0%

The actual speed of the machine is 48 km/h (30 mph) and the reported speed of the machine is 50 km/h (31 mph). Then, [( 48 km/h (30 mph) - 50 km/h (31 mph)) ÷ 50 km/h (31 mph)] × 100%. The machine speed correction factor is −4.0%

Machine Overload Speed Limit Enable Status

Illustration 50	g06114561
Machine Overload Speed Limit Enable Status Screen

This configurable parameter is used to allow the customer / dealer to program if an overload speed limit is imposed at the mine site. Not enabling this feature will reduce frame life.

Table 44

Default Value	0 - Off
Allowable Programmable Value	1 - On
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	Yes

When excessive payload conditions on the machine are detected, then the Machine Overload Speed Limit feature limits transmission gear to 2nd and engine speed to 1750 RPM. This feature minimizes stress on the machine frame.

Transmission Torque Shift Mode Feature Installation Status

Illustration 51	g06114569
Transmission Torque Shift Mode Feature Installation Status Screen

This configurable parameter is used to enable Advanced Productivity Electronic Control Strategy (APECS) when released in the future.

Table 45

Default Value	Not Installed
Allowable Programmable Value	Installed
Password Protected	Yes
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

This parameter allows customers with existing machine to upgrade to a more advanced shifting transmission system. The shifting strategy is torque based instead of time based.

Transmission Main Relief Valve Pressure Sensor Installation Status

Illustration 52	g06114587
Transmission Main Relief Valve Pressure Sensor Installation Status Screen

This configurable parameter can be used to install an optional pressure sensor for the transmission system. This feature has not been offered to the field as of Oct 2015. The parameter may say unavailable until a later transmission software production release.

Table 46

Default Value	Not Installed
Allowable Programmable Value	Installed
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

Provide back office pressure information that could be trended to aid in detecting potential transmission system issues.

PTO and Throttle Lock Parameters

Throttle Lock Enable Gear Limit

Illustration 53	g06114595
Throttle Lock Enable Gear Limit Screen

This configurable parameter can allow the customer / dealer to program a maximum gear limit to be used when the throttle lock feature is installed.

Table 47

Default Value	0 - No Limit
Maximum Allowable Programmable Value	7
Minimum Allowable Programmable Value	1
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

This parameter allows the use of the Throttle Lock feature, but limits the maximum gear that the feature will function in. The parameter is used for specific mine site requirements.

Throttle Lock Feature Installation Status

Illustration 54	g06114616
Throttle Lock Feature Installation Status Screen

This configurable parameter is used to purchase and activate the throttle lock feature.

Table 48

Default Value	Not Installed
Allowable Programmable Value	Installed
Password Protected	Yes
ECM Replacement Capable	Yes
Fleet Configuration Capable	No

The purpose of Throttle Lock allows desired engine speed to be electronically held at the full throttle value without the throttle pedal depressed. The feature only works when in a selected gear, and under certain conditions. Allowing desired engine speed to be electronically held at full throttle provides:

• Relief for the operator during long periods of full throttle operation.

• Potential to reduce hunting by providing continuous full throttle operation on uphill hauls.

• Reduced drivetrain torque spikes due to potential for reduced hunting.

Work Mode Configurations

Fuel Economy Mode Enable Status

Illustration 55	g06114617
Fuel Economy Mode Enable Status Screen

This configurable parameter can enable a feature that allows the machine to run in a higher gear and lower engine speed. This feature can provide better fuel economy.

Table 49

Default Value	Disabled
Allowable Programmable Value	Enabled
Password Protected	No
ECM Replacement Capable	Yes
Fleet Configuration Capable	No
Reference Information	Service Magazine, SEPD1547, "The Caterpillar Flat Haul Economy Mode (FHEM) System is Available for the 797F Off-Highway Truck"

During flat haul operation, the machine can operate steady state at engine part load conditions. This feature works with the Engine ECM to provide better fuel economy in that situation. Remember that this feature is for long flat hauls at limited machine speeds that are configured by mine site personnel based on application. Contact an LMT product support representative for more details before enabling the feature. Once enabled, the machine speed limit must also be set for proper operation.

VIMS ECM

For information reguarding the VIMS ECM refer to Special Instruction, REHS7342, "Procedure to Configure VIMS 3G^® On Certain Cat^® Products".