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SUPPLEMENTARY SERVICE INFORMATION (DISASSEMBLY & ASSEMBLY... Page 2 of 2 1. Enter service code "1b". The following information will be displayed: the name of the model, type of engine and type of control levers. "1b 25 CH" is an example. 25 - This number indicates 325B. C - This letter indicates a Caterpillar engine. H - This letter indicates the type of hydraulic control levers. Note: When "H" is being displayed in the second position from the right, the display will indicate a "MHI mode" type of engine.

Enter service code "1A". The fine control mode switch (25) is pressed in order to move the number that is flashing to the second position from the left. The boom priority mode switch (23) is pushed until a flashing "A" appears. The position of the speed dial is shown by the third number from the left. The three numbers from the left will show the engine rpm that is multiplied by 10. Move the speed dial to the different positions in order to read the target rpm for that speed position. This function is used to verify that the setting of the engine speed at each position of the engine speed dial corresponds to the factory settings of the engine speed. For the proper engine RPM, refer to the chart.

Copyright 1993 - 2011 Caterpillar Inc. Todos los derechos reservados. Red privada para licenciados del SIS.

Thu May 26 07:43:55 EST 2011

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SUPPLEMENTARY SERVICE INFORMATION (DISASSEMBLY & ASSEMBLY... Page 1 of 3

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Pantalla anterior Producto: EXCAVATOR Modelo: 320B L EXCAVATOR 4MR00001 Configuración: SUPPLEMENTARY SERVICE INFORMATION (DISASSEMBLY & ASSEMBLY) F 4MR00001-UP (MACHINE)

Pruebas y Ajustes 308B, 311B, 312B, 315B, 317B, 318B, 320B, 322B, 325B, 330B, M325B and W 330B Excavators Engine and Pump Control Número de medio -RENR1998-06

Fecha de publicación -01/ 10/ 2004

Fecha de actualización -06/ 10/ 2004

i01256657

Digital Output On/Off - Test SMCS - 1931-081-OJ

Table 1 Digital Output Test Channel No. Display ON/OFF

Output Signal Name

Character

1

Spare Solenoid 1

621

2

Trenching Solenoid

622

3

Boom Raise Solenoid

623

4

Automatic Travel Speed Change Solenoid

624

5

Travel Alarm

625

6

Spare Solenoid 2

626

Note: The 315B does not have channel 1.





Illustration 1

g00662996

This function displays the condition of the digital outputs that are connected to t he controller. 1. Enter service code 62. The character display shows the number of the channel first. Then, "on" or "oF" is displayed. 2. The fine control mode switch (25) is depressed in order to shift the blinking position of the character display to the fourth character position from the right. 3. When the boom priority mode switch (23) is depressed the channel numbers are displayed in ascending order. 4. When the swing priority mode switch (24) is depressed the channel numbers are displayed in descending order. 5. The travel alarm cancel switch (22) is pressed in order to change the digital output between "on" and "oF".






Thu May 26 07:44:23 EST 2011





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i01259193

Governor Actuator - Replace SMCS - 1716-510

Replacement Of The Governor Actuator And Adjustment Of The Governor Actuator 315B, 322B, 325B, And 330B

Illustration 1

g00670058

Attachment Of The Cable For The Governor Actuator ( 315B, 322B, 325B And 330B) (1) Accelerator Cable (2) Nut (3) Support (4) Bellows (5) Lever




SUPPLEMENTARY SERVICE INFORMATION (DISASSEMBLY & ASSEMBLY... Page 2 of 4 1. Turn the nut (2) and the locknut of the accelerator cable (1) in the counterclockwise direction until the nuts are separated. 2. Insert the threaded "L" end of the accelerator cable (1) through the hole in the lever (5). Install the nut in order to hold the cable in position. 3. Insert the other threaded portion of the accelerator cable (1) into the notch of the support (3) . 4. Turn the lever (5) in the counterclockwise direction to the position of high idle. 5. Hold the lever (5) against the position of high idle stop. Then, turn the nut (2) clockwise until the slack is removed from the bellows (4). The nut (2) should be tightened for approximately two turns more. 6. Tighten the locknut against the support (3) . 7. Ensure that the nut (2) remains in position while the locknut is tightened against the support (3) . 8. Reinstall the two clamps to the accelerator cable (1). Do not allow the cable (1) to twist. Note: Ensure that the governor lever is in contact with the high idle stop. Also, ensure that the nut (2) is correctly tightened in order to ensure that the accel erator cable has the correct tension. The setting of the engine speed or an overload condition of the governor actuator could result if the cable is not tightened correctly. Note: When the current governor is being used, the following conditions will be applicable:

a. When the accelerator cable (1) is disconnected from the governor lever and the engine speed dial is in a position rather than 10, the initial calibration procedure is required. b. No initial setting is required, if the accelerator cable (1) is disconnected from the governor lever and the engine speed dial is positioned at 10. However, the initial setting is required, when electricity is sent to the governor actuator.

311B, 312B And 320B

Illustration 2

g00670066

Governor Actuator




SUPPLEMENTARY SERVICE INFORMATION (DISASSEMBLY & ASSEMBLY... Page 3 of 4 (1) Governor Actuator (2) Accelerator Cable

Illustration 3

g00670071

Cable For The Governor Actuator (2) Accelerator Cable (3) Support (4) Bellows (5) Lever (6) Decelerator Cable (7) Nut (8) Nut (9) Bellows (10) Locknut (11) Locknut

1. Turn the nut (8) and turn the locknut (10) of the accelerator cable (2) counterclockwise until the nuts are separated. 2. Insert the threaded end "L" of the accelerator cable (2) and the decelerator cable (6) through the hole in lever (5). Install a nut in order to hold the cable in position. 3. Insert the other threaded portion of the accelerator cable (2) into the notch of the support (3). 4. Turn the lever (5) counterclockwise to the position of high idle stop. 5. Hold the lever (5) against the high idle stop. Turn the nut (8) clockwise until the slack is removed from bellows (9). The nut (8) should be tightened for approximately two turns more.




SUPPLEMENTARY SERVICE INFORMATION (DISASSEMBLY & ASSEMBLY... Page 4 of 4 6. Tighten the locknut (10) against the support (3). Ensure that the nut (8) remains in position on the threaded portion of the accelerator cable (2) while the locknut is being ti ghtened against the support (3). 7. Insert the other threaded portion of the decelerator cable (6) into the notch of the support (3) . 8. Hold the lever (5) against the high idle stop and turn the nut (7) clockwise until the slack is removed from the bellows (4). The nut (7) should be loosened for two turns more. 9. Tighten the locknut (11) against the support (3). Ensure that the nut (7) remains in position while the nut (7) is tightened against the support (3) . Note: Ensure that the governor lever is in contact with the high idle stop. Also, ensure that the nut (8) is correctly tightened in order to ensure that the accel erator cable (2) has the correct tension. The setting of the engine speed and an overload of the governor actuator could result, if the cable is not correctly tightened. Note: When the current governor actuator is being used the following conditions are applicable:

a. The initial setting should always be performed when the governor actuator is being supplied with power. Note: If the current governor, that is being used, is a governor from spare parts, then do not send electricity to the governor. The initial setting of the governor should always be performed because the governor may have received electricity.

Calibration Of The Governor Actuator Note: For more information, see the topic Testing And Adjusting, "Governor Actuator".

1. Start the engine. Perform the calibration procedure for the governor actuator. 2. Clear the error log, after the calibration procedure has been correctly performed. Note: For more information, see Testing And Adjusting, "Error Log".


Thu May 26 07:45:52 EST 2011





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i02161676

Governor Actuator - Calibrate SMCS - 1716-524

Illustration 1

g00663002

Monitor Panel

This function allows the controller to memorize the corresponding data from the rotation angles of the governor actuator and the no-load engine speed. The controller will determine the target position




SUPPLEMENTARY SERVICE INFORMATION (DISASSEMBLY & ASSEMBLY... Page 2 of 4 of the governor actuator. This procedure must be performed when any of the following components have been replaced or the components are reinstalled: The governor actuator, the accelerator cable and the controller. The temperature of the hydraulic oil must be at approximately 50 °C (122 °F). 1. Enter service code 70. The character display shows the following example: "70 P00". This means "before calibration". 2. Depress the travel alarm cancel switch (22). The character display shows the following example: 7001This means "governor actuator is moving to the initial position". 3. When the character display shows the following example, the governor actuator has completed a movement to an initial position: "70 PSP". 4. At this condition, install the accelerator cable properly, if the cable is not installed. 5. Start the engine. 6. Depress the travel alarm cancel switch (22) again. The calibration for the governor actuator will start. During the calibration, the character display displays the following codes: Table 1 Calibration Codes For The Governor Actuator Calibration Codes

70 P00 7001 70 PSP

Description

Before Calibration Shift The Governor Actuator (G/A) To The Initial Position The G/A Has Completed A Move To The Initial Position

7003

Search The G/A Position For High Idle

7004

Set The G/A Position For High Idle

7005

Collect The Data Of G/A Positions From The Engine Speed Dial 9 to 2

7006

Search The G/A Positions For Low Idle

7007

Collect The Data Of G/A Positions From The Engine Speed Dial Positions 9 To 2

7008

Confirm The G/A Position For High Idle

7009

Confirm The G/A Positions From The Engine Speed Dial Positions 9 To 1

7010

Confirm The G/A Positions From The Engine Speed Dial Positions 2 to 10





7011 70 End

Collect The Data For The Engine Speed Feedback Control Calibration Is Complete

7. When the calibration has been completed, the character display shows "70 E nd". Note: In order to stop the calibration in the middle of the process, the power mode switch (19) and travel alarm cancel switch (22) should be pressed and held simultaneously for 2 seconds or more.

8. An error will be present, if the governor actuator is moving to the initial position or being calibrated and the character display is showing the letter "H" in the fourth character position from the right and not showing a character in the third character position from the right. Depress the travel alarm cancel switch (22). The error code is d isplayed on the right three character positions. Refer to the following chart for details of the possible error codes. 9. When the calibration has been completed, the character display shows "70 E nd". Note: In order to stop the calibration in the middle of the process, the power mode switch (19) and the travel alarm cancel switch (22) are pressed and held simultaneously for 2 seconds or more.

10. An error will be present, if the governor actuator is moving to the initial position or being calibrated and the character display is showing the letter "H" in the fourth character position from the right and not showing a character in the third character position from the right. Depress the travel alarm cancel switch (22). The error code will be displayed in the right three character positions. Refer to the following chart for the details of the possible error codes. Table 2 Error Code Character

1 2 3 4 5 6 7

Display

70 HF 01 70 HF 02 70 HF 03 70 HF 04 70 HF 05 70 HF 06 70 HF 07

Error Description

Engine Stops Speed Sensor Is Abnormal Load Is Applied Faster Than The High Idle Speed Slower Than The Low Idle Engine Speed Governor Actuator Feedback Governor Actuator Feedback Sensor Circuit Is Shorted To Ground





8 9

70 HF 08 70 HF 09 70 Hd 00

Feedback Signal Of Governor Actuator Is Abnormal High idle engine speed is lower than the Engine Speed Dial Setting 8 plus 50 rpm Retry Error Or Too Much Hysteresis

11. Perform the following operations when the character display shows "70 Hd 00". a. Depress the fine control mode switch and hold the fine control mode switch (25) until the character display stops blinking. b. Depress the boom priority mode switch (23) or the swing priority mode switch (24) in order to select the data that is used as the calibration data. c. Depress the boom priority mode switch (23) in order to select the previous calibration data. d. Depress the swing priority mode switch in order to select the default calibration data. e. Depress the travel alarm cancel switch (22) in order to memorize the calibration data that has been selected. 12. When the calibration is completed, the character display may flash "70End". Then, a number will be displayed. The cable end for the governor actuator is too loose by 6 full turns, if a set of numbers that is similar to "70 06" is displayed. The numbers on the right side indicate the total number of turns. The display numbers in each position can b e from 1 through 0. The cable end of the governor actuator is too tight by 6 full turns, if a set of numbers that is similar to "70 - 06" appears in the fourth position from the left with a minus sign. Again, the numbers on the right side indicate the total number of turns. The four numbers on the right side will indicate the actual engine spe ed, if a set of numbers that are similar to "70 20 13" appear in the third set. This code means that the engine speed is below the correct specifications for the high idle speed of the engine.


Thu May 26 07:46:31 EST 2011




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