M325D and M330D Excavators Machine Electronic Control System Caterpillar

Calibration

Usage:

Using Caterpillar Electronic Technician (Cat^® ET)

The Caterpillar Electronic Technician (Cat^® ET) service tool is used to access the calibration procedures. For more information, refer to the manual that was provided with Cat^® ET.

Similar procedures for calibration may also be performed through the Monitoring System. See Systems Operation, RENR8068, "Calibration Mode".

Machine calibration is used to compensate for the differences in the mechanical and electrical components. A calibration should be performed if the electronic control module (ECM) has been replaced. Calibration should also be performed if related components have been replaced or removed. Perform all calibrations that are applicable.

Note: Be sure that the hydraulic oil temperature is at least 50 °C (122 °F) before performing calibrations.

Accessing Calibrations

Connect Cat^® ET to the machine at the Service Connector. See Illustration 1. After communication has been established, Cat^® ET will list the ECMs that are on the machine.

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Illustration 1	g03477479
Cat^® ET Service Connector Location (Behind Operator Seat) (1) Service Connector (2) Rear of Operator Seat (shifted forward for access) (3) Main Backup Switch (4) Backup Engine Speed Selector Switch

Note: The ECM must detect specific setup conditions before beginning the calibration procedure. If a setup step is not met, the calibration procedure is aborted.

Select the Machine ECM.

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Illustration 2	g03477356
Available Calibrations in Cat^® ET

Select "Service" from the main menu.

Select "Calibrations" from the "Service" drop-down menu.
The following is a list of all possible calibrations from the "Calibrations" drop-down menu. The specific calibrations will differ across sales models.
- "PRV - Main Pump Flow Limitation Pressure Calibration"
- "PRV - Power Shift Pressure Calibration"
- "Modulation Input Calibrations"
- "PRV - Variable Relief Pressure Calibration"
- "PRV - Attachment Valves Pressure Calibration"
- "Engine Speed Calibrations"
- "PRV - Solenoid Pressure Calibrations"

From the "Calibrations" drop-down menu, select the desired calibration procedure.

Follow the instructions that are provided on the screen.

Note: Additional screens will be displayed in order to notify the operator of the status of the calibration procedure.

Typical Calibration Screens

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Illustration 3	g03477363
Typical Calibration Warning

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Illustration 4	g03477377
Typical Select List for Solenoid Valve Calibration

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Illustration 5	g03477396
First Step of PRV Calibration

Hydraulic Cab Riser (HCR) Calibration

This calibration procedure is for the Hydraulic Cab Riser (HCR) angle sensor (if equipped), using the Monitoring System display located in the cab. This calibration is required if the machine ECM or HCR front angle sensor have been replaced.

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Illustration 6	g03474703
HCR Configuration

Ensure that HCR configuration is set as "Installed". Using the machine monitor display, go to MAIN MENU ⇒ SERVICE ⇒ CONFIGURATIONS ⇒ ATCH PARTS INST ⇒ HCR.
Note: A password will be needed when service mode to chosen.

Secure the machine for HCR angle sensor calibration.
1. Lower stabilizers to raise the front and rear axles off the ground.
1. Position the worktool on the ground.
1. Raise the HCR to the middle position. Check the menu status to determine the middle position.

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Illustration 8	g03474723
HCR Front Angle Calibration - Start

Select, MAIN MENU ⇒ SERVICE ⇒ CALIBRATIONS ⇒ ANGLE SENSOR ⇒ FRONT ANGLE and press "OK" after confirmation.
Note: For calibration error code information, refer to Table 1.

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Illustration 9	g03474736
HCR Front Angle Calibration - Set to Bottom Position

Slowly lower the HCR to the bottom position and press "OK".
Note: The snubbing system is canceled during calibration. If HCR hits the stop at maximum speed, the system will be greatly shocked and damage could result.

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Illustration 10	g03474737
HCR Front Angle Calibration - Set to Top Position

Slowly raise the HCR to the top position and press "OK".

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Illustration 11	g03474740
HCR Front Angle Calibration - Succeeded

After calibration has succeeded, confirm that the snubbing system works correctly. To go back to the previous screen, press the bottom back key.

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Illustration 12	g03474742
HCR Up / Down Gain - To Adjust Snubbing

Adjust the snubbing system, if the shock is excessive, when the HCR reaches the stops. To adjust, navigate to MAIN MENU ⇒ SERVICE ⇒ CONFIGURATIONS ⇒ PARAMETER SETTING ⇒ E-FENCE on the machine monitor.

"GAIN1" = angle gain. 5 is Narrow (Heavy), 0 is Normal and -5 is Wide (Light).

"GAIN2" = rate gain. 5 is High (Heavy), 0 is Normal and -5 is Low (Light).

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Table 1
Error Codes That Can Be Activated during HCR Angle Sensor Calibration
Error Codes ⁽¹⁾	Error Descriptions	Recommended Response / Possible Causes
0002	Active Diagnostic Code	Resolve the problem that is causing the active diagnostic code. Then, retry the calibration.
0003	Other Calibration or Test Is Running	Only one diagnostic test can be active. Wait for diagnostic testing to complete. Or key OFF once and restart calibration.
0004	Calibration Active By Another ECM	Calibration procedures are trying to run on the monitor and Cat ET at the same time. Or a calibration was started, then canceled and another calibration was started too quickly. Restart calibration after other calibration is performed. Or key OFF once and restart calibration.
0005	Loss Of Calibration Interlock	Check and resolve any active Cat Data Link (CDL) diagnostic codes. Check the CDL and monitor connections. Cycle the key start switch from ON to OFF, wait 10 seconds, then turn the key start switch to ON and rerun the calibration procedure.
0006	Calibration Aborted By Tool / Monitor	Service technician interrupted or canceled the calibration. Wait at least 15 seconds before performing another calibration.
0007	Service Tool Is Not Supported	The machine monitor software does not support the calibration. Download and install the correct flash file and restart the calibration.
0009	Calibration Aborted By ECM	Normally another error code will also be active indicating the cause of the cancellation. Check that the (HCR) configuration is correct and restart the calibration.
000A	Calibration Failure	Failure of the calibration due to engine speed anomaly. After resolving the anomaly restart the calibration.
000B	Calibration Not Supported	Incorrect / early version of monitor software does not support the calibration. Verify that the correct flash file is downloaded into the monitor or machine ECM. After the ECM has been flashed, cycle the key start switch from ON to OFF. Wait 10 seconds, then turn the key start switch to ON and rerun the calibration.
0100	Out-Of-Range Low	HCR cylinder moves and/or the HCR angle sensor signal is below the allowed minimum range. Perform calibration again.
0101	Out-Of-Range High	HCR cylinder does not move and/or the angle sensor signal is outside the allowed maximum range. Perform calibration again.
0102	Invalid Command	Incorrect calibration procedure. Perform calibration again.
0103	Calibration Value Out-of-Range	The duty cycle from the HCR angle sensor is out-of-range. Ensure that the HCR is moved to the position indicated by the instructions in the calibration procedure. Perform calibration again.
1010	Engine Stopped	Troubleshoot the engine shutdown. Restart the engine and perform calibration again.
1014	Low Engine Idle Speed	Engine idle speed is below 1014 rpm. Correct the engine idle speed and perform calibration again.
1015	Abnormal Engine Speed	Engine speed sensor shows an abnormal state. Check, reinstall and/or replace the speed sensor. Perform calibration again.
1034	Excessive Engine Speed	Calibration not possible due to high engine rpm. Error occurs after the amount of time given to lower engine rpm is exhausted. Correct the engine speed issue and perform calibration again.
1035	Engine Speed Response Delay	Error indicates that engine rpm is not responding or is slow. Perform troubleshooting for an abnormality engine speed command signal. Perform calibration again.
1040	Excessive Load During Calibration	Error indicates that load was applied during calibration. Ensure that the hydraulic lock lever is in the locked position and perform calibration again.
1054	Hydraulic Oil Temperature Too High	Hydraulic oil temperature reading is higher than the maximum required for calibration. Typical maximum required hydraulic oil temperature is 90° C (194° F).
1074	Engine Output Speed Is Less Than The Minimum Engine Speed	Engine high idle speed signal is below the required threshold. Check that the electrical wiring from the engine speed sensor to the ECM is correct and perform calibration again.