- 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.
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. |
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 |
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.
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.
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.
Information Units Status
Illustration 5 | g06113942 |
Information Units Status Screen |
This configurable parameter is used to set the units displayed as English or Metric.
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.
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.
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 |
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.
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.
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 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.
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.
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.
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 |
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Default Value | |
Maximum Allowable Programmable Value | |
Minimum Allowable Programmable Value | |
Incremental Adjustment Value | |
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 Interval
Illustration 24 | g06114143 |
Auto Lube Interval Screen |
This configurable parameter is used to program the Auto Lube feature interval.
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.
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.
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.
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 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.
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.
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.
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.
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.
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 |
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.
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.
Default Value | Blank |
Allowable Programmable Value | 15 Character Limit |
Password Protected | No |
ECM Replacement Capable | Yes |
Fleet Configuration Capable | No |
Ether Control
Illustration 34 | g06114452 |
Ether Control Screen |
This configurable parameter is used to program whether the ether aid valve is controlled by software.
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.
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.
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
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.
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.
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.
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.
Default Value | |
Maximum Allowable Programmable Value | |
Minimum Allowable Programmable Value | |
Password Protected | Yes |
ECM Replacement Capable | No |
Fleet Configuration Capable | No |
Transmission ECM
Illustration 41 | g06114506 |
Transmission ECM Screen |
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.
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.
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.
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.
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.
Default Value | |
Maximum Allowable Programmable Value | |
Minimum Allowable Programmable Value | |
Incremental Adjustment Value | |
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
Economy Mode
Illustration 46 | g06114539 |
Economy Mode Screen |
This configurable parameter is used to select an engine 3550 HP setting in all gears.
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.
Default Value | |
Maximum Allowable Programmable Value | |
Minimum Allowable Programmable Value | |
Incremental Adjustment Value | |
Password Protected | No |
ECM Replacement Capable | Yes |
Fleet Configuration Capable | No |
Note: The maximum speed for a machine is
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.
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.
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
The actual speed of the machine is
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.
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.
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.
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.
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.
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.
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.
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".