M313C, M315C, M316C, M318C and M322C Excavators and M318C and M322C Material Handlers Hydraulic System Caterpillar

Machine Preparation

1. The machine ground speed will need to be monitored during this test. In order to monitor the machine ground speed, the "Service Options PW" menu must be accessed. The "Service Options PW" menu is protected by a password. The "Service Options PW" menu will not appear until a password has been entered. In order to access this menu, the following procedure must be performed:
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   Illustration 1	g01147898
   Keypad (1) Upward key (2) Right key (3) Set key (4) Menu key (5) Left key (6) Downward key (7) Cancel key (8) OK key

   1. Place the engine start switch in the ON position. Do not start the engine.

   2. While the display monitor shows the CAT symbol, press the following three buttons at the same time:
      • Left key (5)

      • Right key (2)

      • Menu key (4)

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   Illustration 2	g01153628

   3. After the keys are pressed, the screen in Illustration 2 will be displayed.

   4. The keys for direction are used in order to input the password. The default password that allows access to the "Service Options PW" menu is "FFF2". Press "LEFT" key (5) or "RIGHT" key (2) in order to change the position of the flashing character. Press "UP" key (1) or "DOWN" key (6) in order to change the value of the flashing character.
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   Illustration 3	g00789258

   5. After entering the password, press "SET" key (3) .

   6. After the password is entered, the "SERVICE OPTIONS PW" menu is available.
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   Illustration 4	g00812524

   7. Press "MENU" key (4). The "MAIN MENU" screen will appear.
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   Illustration 5	g00837067

   8. Press "DOWN" key (6) several times in order to highlight "SERVICE OPTIONS PW". Press "OK" key (8). The "SERVICE OPTIONS PW" menu will appear.

   9. Scroll to the "STATUS SCREEN". Press "OK" key (8) in order to enter "STATUS MODE".

   10. Scroll to "VEHICLE SPEED". Press "OK" key (8) in order to view the vehicle speed.

2. Start the engine.

3. Position the machine on level ground.

4. Increase the hydraulic oil temperature to 55° ± 5°C (131° ± 9°F).

5. Lower the stabilizers, the blade tip, and/or the implement in order to raise the front axle and the rear axle. This will allow the wheels to turn freely. All tires must be fully off the ground.

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Illustration 6	g01247314
Soft Switch Panel (9) Automatic Engine Speed Control (AEC) (10) Creeper Speed Control (11) Hydraulic Modulation Control (12) Hydraulic Lockout Control (13) Transmission Control

6. At the soft switch panel, disable AEC (9) by pushing down on the button. The indicator light will not be illuminated when the AEC is disabled.

7. At the soft switch panel, deactivate hydraulic lockout control (12) by pushing down on the button. The indicator light will not be illuminated when the hydraulic lockout control is deactivated.

8. At the soft switch panel, select SECOND GEAR by pushing down on the button for transmission control (13). The second indicator light will illuminate when the transmission is in SECOND GEAR.

9. At the soft switch panel, activate creeper speed control (10) by pushing down on the button. When the creeper speed control is activated, the indicator light will illuminate.

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Illustration 7	g01247320
Right Joystick (14) Front switch (Hydraulic modulation)

10. Disable hydraulic modulation control (11). Press front switch (14) on the right joystick in order to deactivate the soft panel switch for hydraulic modulation. None of the indicator lights will be illuminated when the hydraulic modulation control is disabled.

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Illustration 8	g01247344
Right Side of Cab Seat (15) Service tool connector

11. Connect the Electronic Technician (ET) to service tool connector (15) of the machine.

12. Start Electronic Technician.

13. Select the "Machine ECM" from the list of available controls.

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Illustration 9	g01219638
ET Configuration Screen

14. Go to the "Configuration" screen.

15. Record the calibration values that are displayed for "Trav Valv Rev Adj" and "Trav Valv Fwd Adj". Change both of these values to 0 amperes.

16. Go to the "Diagnostics/Override Parameters" menu.

17. Select "Travel Pilot Solenoid Current Override".
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    Table 2

    Travel Pilot Solenoid Current Override
    Machine Model	Current Value (Ampere)
    	Step 1	Step 2	Step 3	Step 4	Step 5
    M313C	0	0.310	0.432	0.472	0.512
    M315C	0	0.310	0.432	0.472	0.512
    M316C	0	0.310	0.432	0.472	0.512
    M318C	0	0.310	0.492	0.532	0.572
    M322C	0	0.310	0.492	0.532	0.572

18. Enter the current values that are shown in Table 2 for your machine. Enter the current values sequentially.

    Note: Enter all of the current values before proceeding to the next step.

Test

Forward Travel

1. Adjust the engine speed to HIGH IDLE by turning the engine speed dial to position 10.

2. Depress the travel pedal fully in the FORWARD position and wait until the speed stabilizes.

3. Check the "Machine Ground Speed" value that is displayed on the status screen of the operator monitor panel. Record the machine ground speed.

4. Release the travel pedal and repeat Steps 2 and 3 two more times.

5. Calculate the average ground speed of the above three measurements.
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   Table 3

   Correction Factor
   Ground Speed	Machine Model
   	M313C	M315C	M316C	M318C	M322C
   5.8	60	60	60	60	60
   5.9	60	60	60	60	58
   6.0	60	60	60	60	55
   6.1	60	60	60	60	53
   6.2	60	60	60	60	50
   6.3	60	60	60	60	48
   6.4	60	60	60	60	45
   6.5	60	60	60	60	43
   6.6	60	59	58	60	40
   6.7	60	57	56	58	38
   6.8	60	55	54	55	35
   6.9	60	53	52	53	33
   7.0	60	52	51	51	30
   7.1	60	50	49	49	28
   7.2	60	48	47	47	26
   7.3	60	47	45	44	25
   7.4	60	45	44	42	23
   7.5	60	43	42	40	22
   7.6	60	41	40	38	21
   7.7	60	40	38	35	19
   7.8	60	38	37	33	18
   7.9	60	36	35	31	16
   8.0	60	35	33	29	15
   8.1	60	33	32	27	14
   8.2	60	31	30	26	12
   8.3	60	30	28	24	11
   8.4	60	28	27	23	9
   8.5	58	27	25	22	7
   8.6	57	25	24	21	5
   8.7	55	23	22	20	4
   8.8	54	22	20	18	2
   8.9	53	20	19	17	0
   9.0	51	19	17	16	-2
   9.1	50	17	16	15	-4
   9.2	49	16	14	13	-5
   9.3	47	14	12	12	-7
   9.4	46	12	11	11	-9
   9.5	45	11	9	9	-10
   9.6	43	9	8	8	-12
   9.7	42	8	6	6	-14
   9.8	41	6	5	5	-16
   9.9	39	4	3	3	-17
   10.0	38	3	1	1	-19
   10.1	37	1	0	0	-20
   10.2	35	0	-2	-2	-20
   10.3	34	-2	-4	-3	-20
   10.4	33	-4	-5	-5	-20
   10.5	31	-5	-7	-6	-20
   10.6	30	-7	-9	-8	-20
   10.7	29	-9	-10	-9	-20
   10.8	28	-10	-12	-11	-20
   10.9	26	-12	-14	-12	-20
   11.0	25	-14	-15	-14	-20
   11.1	24	-15	-17	-16	-20
   11.2	23	-17	-19	-17	-20
   11.3	22	-18	-20	-19	-20
   11.4	20	-20	-20	-20	-20
   11.5	19	-20	-20	-20	-20
   11.6	18	-20	-20	-20	-20
   11.7	17	-20	-20	-20	-20
   11.8	15	-20	-20	-20	-20
   11.9	14	-20	-20	-20	-20
   12.0	13	-20	-20	-20	-20
   12.1	12	-20	-20	-20	-20
   12.2	10	-20	-20	-20	-20
   12.3	9	-20	-20	-20	-20
   12.4	8	-20	-20	-20	-20
   12.5	7	-20	-20	-20	-20
   12.6	6	-20	-20	-20	-20
   12.7	4	-20	-20	-20	-20
   12.8	3	-20	-20	-20	-20
   12.9	2	-20	-20	-20	-20
   13.0	1	-20	-20	-20	-20
   13.1	-1	-20	-20	-20	-20
   13.2	-2	-20	-20	-20	-20
   13.3	-3	-20	-20	-20	-20
   13.4	-5	-20	-20	-20	-20
   13.5	-6	-20	-20	-20	-20
   13.6	-7	-20	-20	-20	-20
   13.7	-8	-20	-20	-20	-20
   13.8	-10	-20	-20	-20	-20
   13.9	-11	-20	-20	-20	-20
   14.0	-12	-20	-20	-20	-20
   14.1	-14	-20	-20	-20	-20
   14.2	-15	-20	-20	-20	-20
   14.3	-16	-20	-20	-20	-20
   14.4	-17	-20	-20	-20	-20
   14.5	-19	-20	-20	-20	-20
   14.6	-20	-20	-20	-20	-20
   14.7	-20	-20	-20	-20	-20

6. Use the calculated value for the average "Ground Speed" and refer to Table 3 in order to find the proper "Correction Factor" for your machine.

7. Divide this "Correction Factor" by 1000 and enter this value in the "ET Configuration Screen" under "Trav Valv Fwd Adj".

   Note: If the "Correction Factor" value that is used in Table 3 is a "Negative" value, also enter a "Negative" value in ET.

   Note: The "Correction Factor" value that is entered should be close to the value that was originally recorded in Step 15.

Reverse Travel

1. Adjust the engine speed to HIGH IDLE by turning the engine speed dial to position 10.

2. Depress the travel pedal fully in the REVERSE position and wait until the speed stabilizes.

3. Check the "Machine Ground Speed" value that is displayed on the status screen of the operator monitor panel. Record the machine ground speed.

4. Release the travel pedal and repeat Steps 2 and 3 two more times.

5. Calculate the average ground speed of the above three measurements.

6. Use the calculated value for the average "Ground Speed" and refer to Table 3 in order to find the proper "Correction Factor" for your machine.

7. Divide this "Correction Factor" by 1000 and enter this value in the "ET Configuration Screen" under "Trav Valv Rvs Adj".

   Note: If the "Correction Factor" value that is used in Table 3 is a "Negative" value, also enter a "Negative" value in ET.

   Note: The "Correction Factor" value that is entered should be close to the value that was originally recorded in Step 15.