PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE TRANSMISSION CONTROL TUBES AND UPDATING SOFTWARE ON CERTAIN D8R AND D8T TRACK-TYPE TRACTORS Caterpillar

PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE TRANSMISSION CONTROL TUBES AND UPDATING SOFTWARE ON CERTAIN D8R AND D8T TRACK-TYPE TRACTORS

Usage:

TEBE7861-01

Show/hide table

09Jul2018

(Revised 23Jul2018)

U-388

A-287

D-338

O-348

Show/hide table

Priority	PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE TRANSMISSION CONTROL TUBES AND UPDATING SOFTWARE ON CERTAIN D8R AND D8T TRACK-TYPE TRACTORS
3167 3073 7610 7620 4800 4808		PI32910

Show/hide table

NOTE:

Caterpillar’s obligations under this Service Letter are subject to, and shall not apply in contravention of, the laws, rules, regulations, directives, ordinances, orders, or statutes of the United States, or of any other applicable jurisdiction, without recourse or liability with respect to Caterpillar.

NOTE:

This Program must be administered as soon as possible. When reporting the repair, use "PI32910" as the Part Number and "7751" as the Group Number, "56" as the Warranty Claim Description Code and "T" as the SIMS Description code. Exception: If the repair is done after failure, use "PI32910" as the Part Number, "7751" as the Group Number, "96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code.

Show/hide table

NOTE:

The information supplied in this service letter may not be valid after the termination date of this program. Do not perform the work outlined in this Service Letter after the termination date without first contacting your Caterpillar product analyst.

Show/hide table


NOTE:	This Revised Service Letter replaces 09Jul2018 Service Letter. Changes have been made to the Affected Product.

Show/hide table

COMPLETION DATE	TERMINATION DATE
31Jan2019	31Jul2019

PROBLEM

Show/hide table

The transmission control tubes need to be reworked on certain D8R and D8T Track-Type Tractors. The existing transmission control tubes may contain debris from the manufacturing process that could result in malfunction of the transmission control valves and lead to premature failure of the reverse clutches. A software update is also required to ensure transmission durability.

AFFECTED PRODUCT

Show/hide table

Model	Identification Number
*****Group 1*****
D8R	DWJ00317, 319, 323, 327-328, 331, 335-336, 338-340, 344, 346-350, 352-354, 356-360, 363-364, 368-369, 375, 379, 383-386, 389, 391-393, 395-397, 411, 432-438 JR800248, 250, 319-320
D8T	MB800128, 130, 168-174, 177, 179-182, 185, 190-193, 199-200, 203, 207, 211-212, 215, 217, 221-226, 230-231, 235

Show/hide table

*****Group 2*****
D8R	DWJ00316, 318, 320-322, 324-326, 329-330, 332-334, 337, 341-343, 345, 351, 355, 361-362, 365-367, 370-374, 376-378, 380-382, 387-388, 390, 394, 398-410, 412-431, 439-557, 559-615 JR800249, 316-318, 321-329
D8T	MB800166-00167, 175-176, 178, 183-184, 186-189, 194-195, 197-198, 201-202, 204-206, 208-210, 213-214, 216, 218-220, 227-229, 232-234, 236-315, 317-321, 323-326, 328, 330, 332-334

PARTS NEEDED

Show/hide table

Qty	Part Number	Description
*****Group 1*****
1	1M9011	RING-SEALING
1	2D6506	SEAL-O-RING
2	5M3038	SEAL-O RING (After Failure Only)
5	5P7530	SEAL-O-RING (After Failure Only)
1	8M4390	SEAL-O-RING
2	8M5010	SEAL-O RING (After Failure Only)
1	8P2019	RING-SEAL (After Failure Only)
1	8P2022	RING-SEAL (After Failure Only)
8	8P2051	PLATE-CLUTCH (After Failure Only)
3	9M7002	SEAL-O-RING
10	9P7390	DISC AS-FRICTION (After Failure Only)
1	2160273	SEAL-LIP TYPE (After Failure Only)
2	2327432	PLATE-CLUTCH (After Failure Only)
5	2443114	VALVE GP-MDL -C
1	3317021	ACCUMULATOR GP-D (After Failure Only)
1	3375270	ELEMENT AS-XMSN
2	5234605	ROLLER (After Failure Only)
1	5588659	SFWR GP-A5000
1	BULK_OIL	TDTO - 41 gal(155L)
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 36% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer.
*****Group 2*****
1	1M9011	RING-SEALING (After Failure Only)
1	2D6506	SEAL-O-RING (After Failure Only)
2	5M3038	SEAL-O RING (After Failure Only)
5	5P7530	SEAL-O-RING (After Failure Only)
1	8M4390	SEAL-O-RING (After Failure Only)
2	8M5010	SEAL-O RING (After Failure Only)
1	8P2019	RING-SEAL (After Failure Only)
1	8P2022	RING-SEAL (After Failure Only)
8	8P2051	PLATE-CLUTCH (After Failure Only)
3	9M7002	SEAL-O-RING (After Failure Only)
10	9P7390	DISC AS-FRICTION (After Failure Only)
1	2160273	SEAL-LIP TYPE (After Failure Only)
2	2327432	PLATE-CLUTCH (After Failure Only)
2	5234605	ROLLER (After Failure Only)
1	5588659	SFWR GP-A5000
1	BULK_OIL	TDTO - 41 gal(155L) (After Failure Only)
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 36% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer.

ACTION REQUIRED

Show/hide table

This letter replaces TEBE7047, originally published 21Dec2017. Machines in Group 1 will require all updates outlined in this Service Letter. Machines in Group 2 have had an earlier version of the Service Letter applied and thus will require less work than machines in Group 1. Refer to the attached Rework Procedure for details.

Show/hide table

OWNER NOTIFICATION

Show/hide table

Owners in the following countries will receive the attached Owner Notification:
US
Canada

SERVICE CLAIM ALLOWANCES

Show/hide table

Caterpillar		Dealer Suggested		Customer Suggested
Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
*****Group 1*****
100%	100%	0%	0%	0%	0%

NOTE: This is a 13.0-hour job for Group 1
An additional 8 hours is allowed to rebuild Clutch #1 if required. An additional allowance for approximately 41 gallons (155 liters) of powertrain fluid is permitted for an after failure repair.

Show/hide table

Caterpillar		Dealer Suggested		Customer Suggested
Parts %	Labor Hrs%	Parts %	Labor Hrs%	Parts %	Labor Hrs%
*****Group 2*****
100%	100%	0%	0%	0%	0%

NOTE: This is a 2.0-hour job for Group 2
An additional 16 hours is allowed to remove the transmission, rebuild Clutch #1, and re-install the transmission if required. An additional allowance for approximately 41 gallons (155 liters) of powertrain fluid is permitted for an after failure repair.

PARTS DISPOSITION

Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.

MAKE EVERY EFFORT TO COMPLETE THIS PROGRAM AS SOON AS POSSIBLE.

Show/hide table

EXAMPLE COPY OF OWNER NOTIFICATION

XYZ Corporation
3240 Arrow Drive
Anywhere, YZ 99999

PRIORITY - PRODUCT IMPROVEMENT PROGRAM FOR REWORKING THE TRANSMISSION TUBES AND UPDATING SOFTWARE

MODELS INVOLVED - CERTAIN D8R AND D8T TRACK-TYPE TRACTORS

Dear Cat Product Owner:

The transmission control tubes need to be reworked and updated software flashed on the products listed below. Debris from manufacturing process may contaminate the transmission control valves and lead to premature reverse clutch failure. You will not be charged for the service performed.

Contact your local Cat dealer immediately to schedule this service. The dealer will advise you of the time required to complete this service.

If you are no longer the owner of this product(s), please contact your local Cat dealer so that our records can be updated. Please refer the dealer to their Service Letter dated 21Dec2017 when scheduling this service. Please refer the dealer to their Service Letter dated 09Jul2018 when scheduling this service.

We regret the inconvenience this may cause you, and urge you to have this service performed as soon as possible to prevent unscheduled downtime.

Caterpillar Inc.

Identification #(s)

Attached to 09Jul2018 Service Letter

Rework Procedure

Group Number 1

Before beginning this rework procedure, use Vision Link or Electronic Technician (ET) to check the machine for two potential diagnostic codes:

585-2 Transmission Output Speed Sensor #1: Erratic, Intermittent, or Incorrect
673-2 Transmission Output Speed Sensor #2: Erratic, Intermittent, or Incorrect

If both of these codes have been logged within the same hour at some time since a prior transmission repair, Clutch #1 (reverse) in the transmission must be reworked. An example of these codes as reported in a Product Status Report (PSR) is shown below in Image1.1.1.

Image1.1.1

1. Download a Product Status Report (PSR) through ET.

2. Drain the powertrain oil from sump and remove transmission. Refer to SEBU9416, Operation and Maintenance Manual, for service and fluid drain and fill information. Refer to the M0076745, Disassembly and Assembly, for removal and installation instructions for the transmission. Refer to Image1.3.1 and 1.3.2.

Image1.3.1

Image1.3.2

3. Inspect the inner diameter of the two tubes that supply oil to the transmission, as shown in Image1.4.1. Any rough surfaces found must be cleaned with a grinder to remove debris that could come loose. Examples of surfaces to be cleaned are shown in Images1.4.2 and 1.4.3.

NOTE: A flushing operation will be performed to remove any remaining debris, but make every attempt to remove loose material before reassembling the machine.

Image1.4.1

Image1.4.2

Image1.4.3

4. If both 585-2 and 673-2 Transmission Output Speed Sensor codes have been logged in the same hour at some time since a prior transmission repair, rebuild transmission clutch #1 with new parts.

5. Re-install the transmission. There are 22 bolts, tighten each bolt to a specified torque of 105 +/- 20 N.m (77+/-15 ft lbs.).

NOTE: Do not replace the transmission control valves at this time. They will be replaced after a system flushing procedure.

6. Remove the floor plate and seat plate inside the cab. Disconnect the 472-4076 Hose (Red Hose) from the adapter in the top of the case. It may help to disconnect the scavenge return 472-4433 Hose (Blue hose) and move it out of the way. Refer to Image1.7.1.

NOTE: Disconnecting these hoses allows direct access to the powertrain lubrication circuit after the filter. Please take care to ensure debris is removed from anywhere near the hoses to be disconnected in order to minimize any chance of contaminating the circuit.

Image1.7.1

7. Remove the 148-8339 Adapter Assembly from the case connection for the 472-4076 Hose. Refer to Image1.8.1.

- Inspect and remove debris from the end of the 473-6333 Tube at this interface on the top of the case. Clean the tube.
- System will be flushed in a later step to remove any remaining debris.
- Reassemble in reverse order, then fill powertrain oil system to the correct level.

Image1.8.1

8. Flush the powertrain oil system:

- Start machine
- Stay in neutral, parking brake applied
- Remain at low idle for 1 minute
- Bring engine speed to high idle for 5 minutes
- Return to low idle and stop machine

This procedure should flush any remaining contamination from the tubes. Proceed to the following steps.

9. Replace the powertrain 337-5270 Oil Filter Element. Refer to Image1.10.1.

Image1.10.1

10. Remove the 393-4915 Cover from the transmission. There are eight M10 bolts. Refer to Image1.11.1.

Image1.11.1

11. Replace all 5 clutch control valves, part number 244-3114. Replacement of valve on clutch 1 is shown, others are similar.

- Unplug the harness and remove the two bolts (and washers) marked with arrows. Refer to Image1.13.1. Be careful not to drop them into the transmission. If they are dropped inside the transmission it will have to be removed and disassembled to remove the loose part.

Image1.13.1

- As you remove the old clutch control valve and install the new valve, take care that the orifice plate beneath the valve remains in place. It will be loose during the valve swap. Care should be used to ensure it is not knocked into the transmission. Orifice plate is shown in red and marked with a black arrow in Image1.14.1.

Image1.14.1

- Install the new 244-3114 Clutch Control Valve. Tighten the bolts to a specified torque of 30 +/- 4 N.m (22 +/- 3 ft lbs.). Reinstall the electrical connector. Ensure that the lock tab fully snaps into place.

12. Remove the 354-0164 Main Relief Valve by removing the four mounting bolts. Replace with a new valve, or disassemble and clean the relief valve before re-installing (procedure follows). Refer to Image1.16.1.

Image1.16.1

- Mark the top of 202-2005 Cover (A) so that it can be reassembled in the same orientation. Remove the four 6V-3940 Bolts (B) and remove the cover (adjustment screw will remain with the cover). Refer to Image1.17.1.

Image1.17.1

- After the cover is removed, the 2S-5835 Piston will slide out. Refer to Image1.18.1.

Image1.18.1

- Next, remove the 1M-9351 Spring from the main relief valve. Refer to Image1.19.1.

Image1.19.1

- The 9U-8668 Spool Assembly comes out next, and the 8E-1143 Slug. The slug fits into the inside of the spool. It will likely come out with the spool, then need to be removed from the spool. It is a slip fit. Refer to Image1.20.1.

Image1.20.1

- The body can now be inspected and cleaned, if necessary. Closely examine the highlighted edges. Image1.21.1 below shows the MRV from two different angles.

Image1.21.1

- Inside the back of the spool, there is a 3D-8317 Snap Ring that needs to be removed. Refer to Image1.22.1.

Image1.22.1

- Behind the snap ring is the 9U-8669 Retainer, 4M-2381 Spring, and 4B-9880 Ball. These items should be cleaned before being re-installed. Refer to Image1.23.1.

Image1.23.1

- The spool can now be inspected and cleaned, if necessary. Closely examine the feedback holes for debris stuck in the holes. Refer to Image1.24.1 and 1.24.2.

Image1.24.1

Image1.24.2

- Once the parts are clean, reassemble in reverse order. Assure that the parts are correctly assembled and retaining ring is properly seated in the groove on the inner diameter of the spool. Refer to Image1.25.1.

Image1.25.1

- The slug slides into the back of the spool, the same side as the retaining ring. It is best to hold the spool in this orientation while installing the spool into the valve body to assure that the slug remains in the correct location. Once the spool is inside the body, rotate the assembly over so that the spring and piston can be easily installed. Refer to Image1.26.1 and 1.26.2.

Image1.26.1

Image1.26.2

- Install the spring. It will fit down into the cavity in the spool. Install the piston. The spring will fit inside the cavity of the piston. Install the cover (in the same orientation as removed) and tighten the four M8 bolts to a specified torque of 28 +/- 7 N.m (21 +/- 5 ft lbs.). Refer to Images1.27.1 and 1.27.2.

NOTE: If lock nut (C) can be rotated by hand without a tool, document that observation. Then tighten lock nut (C) to a torque of 18 +/- 4 N.m (13 +/- 3 ft lbs.).

Image1.27.1

Image1.27.2

13. Install the cleaned 354-0164 Main Relief Valve, 9M-1974 Washer, and 1D-4539 Bolt. Tighten the bolts to a specified torque of 25 +/- 6 N.m (18 +/- 4 ft lbs.).

14. Warm up the transmission oil using the following procedure:

Refer to Image1.29.1.

- Connect to the machine with ET. Open the status tool to monitor powertrain temperatures
- Have machine running in neutral, brakes released, engine at high idle
- Press brake pedal fully
- Press engine decel pedal fully
- Shift to 3F
- Slowly release decel pedal (3-5 seconds)
- Hold until Torque Converter Oil Outlet temperature reaches 250 degrees Fahrenheit (121 degrees Celsius)
- Press decel pedal fully
- Shift to neutral
- Release the brake pedal
- Allow Torque Converter Oil Outlet Temperature to stabilize to within 10 degrees Fahrenheit (5 degrees Celsius) of Transmission Oil Temperature
- Repeat as required to reach nominal Transmission Oil Temperature of 185 degrees Fahrenheit (84 degrees Celsius)

Image1.29.1

15. Check the main relief pressure:

- Attach a gauge to the port shown in Image1.30.1 below.
- At low idle, in Neutral, main relief pressure should be set to 2700+/-60 kPa (392 +/- 10 psi)
- Verify the setting when at high idle. In Neutral, pressure should read 2960 +/- 60 kPa (430 +/- 10 psi)
- Document initial setting and final setting for future reference

Image1.30.1

16. If adjustment of the main relief valve pressure is required, follow the procedure below:

- The adjustment screw is located at the arrow, on the relief valve inside the opening. Refer to Image1.32.1.

Image1.32.1

- Refer to Image1.33.1. Place a wrench on adjustment screw (A) and loosen lock nut (B).
- Rotate the adjustment screw clockwise to increase pressure ? valve pressure will increase ~119 kpa (17 psi) per rotation of the adjustment screw.
- Hold the adjustment screw in position and tighten the lock nut to a torque of 18 +/- 4 N.m (13 +/- 3 ft lbs.).
- Verify pressure at high idle is 2960 +/- 60 kPa (430 +/- 10 psi)

Image1.33.1

- Reinstall the 393-4915 Cover to the transmission. Tighten the bolts to a specified torque of 55 +/- 10 N.m (40 +/- 7 ft lbs.). Refer to Image1.34.1.

Image1.34.1

17. Check the accumulator charge pressure and adjust, if necessary.

- The Accumulator Gas Charge Port is located near the red arrow. Refer to Image1.35.1.

Image1.35.1

- Ensure that the accumulator charge pressure is within limits established in REHS5464, Special Instruction, "Accumulator Discharging and Charging Procedures". For reference, the charging table is shown in Image1.36.2. Charge should be measured with Transmission Oil Temperature at 185 degrees Fahrenheit (84 degrees Celsius). Tolerance on the accumulator charge pressure setting is +/- 100 kPa (15 psi).

NOTE: If the accumulator charge pressure is less than 700 kPa (100 psi), replace accumulator with a new one.

Image1.36.1

Image1.36.2

- If a circular mark is already present, use a paint marker to add a vertical line through the circle. If the circle is not present, add the circle and the vertical line this indicates that rework has been completed. Document transmission serial number. Refer to Image1.37.1.

Image1.37.1

18. Flash Powertrain Software:

- File name is 558-8659V00.fl2

19. Run the Transmission Fill Calibration:

Refer to Images1.39.1 and 1.39.2.

- In ET, select Service > Calibrations
- Scroll down to Powertrain ECM
- Select 'Transmission Fill Calibration'
- Follow on-screen prompts

Image1.39.1

Image1.39.2

If Transmission Fill Calibration routine PASSES WITH WARNING or FAILS to calibrate:

- Any valve that shows Completion Status as FAILURE ?AND- Pulse Time is at maximum limit shall be removed from the transmission and replaced with a new valve.

- All old valves or new valves that fail or pass with warnings must be returned to Caterpillar. Include machine serial number and transmission clutch number for traceability.

- Run calibration again. If all calibrations pass without warnings, proceed to the next step. If not, replace defective valves and repeat calibration.

Refer to Image1.40.1 for a flowchart describing this step.
Refer to Images1.40.2 and 1.40.3 for examples of failed calibration messages from ET.

Image1.40.1

Image1.40.2

Image1.40.3

20. Once all calibrations PASS successfully, without warnings, download a Data Transport file (transmission fill calibration history):

Refer to Image1.41.1 and 1.41.2.

- In ET, connect to powertrain ECM
- Click on Information > Data Transport
- Dialog box displays "The data has been successfully loaded from the ECM"
- Select [OK]
- Ensure "Calibration History" is the only box checked
- Select 'Save to File' at bottom of display screen
- The default file name should include machine name and date, and default location should be fine (c:\Program Files\Caterpillar Electronic Technician\ Downloads\Offboard Files)
- Select [Save]

Image1.41.1

Image1.41.2

21. Run the Brake Touch-up Pressure Calibration:

Refer to Images1.42.1 and 1.42.2.

- In ET, select Service > Calibrations
- Scroll down to Powertrain ECM
- Select 'Brake Touch-Up Pressure Calibrations'
- Follow on-screen prompts

Image1.42.1

Image1.42.2

22. Enable Reversing Fan with Modified Purge Cycle Duration and Interval Values:

Note: Reversing fan is a feature highly desired in high debris applications (waste/landfill) but may be helpful in other applications. Enabling is not required, and should not be enabled with the Desert Package. If the reversing feature is enabled, use the Engine Fan Purge Cycle Duration and Interval values shown below.

Refer to Images1.43.1 and 1.43.2.

- In ET, select Service > Configuration
- Scroll down to Engine ECM
- Select 'Fan Control'
- Set 'Engine Fan Reversing Feature' to 'Enabled'
- Change 'Engine Fan Purge Cycle Duration' to '20.0 sec'
- Change 'Engine Fan Purge Cycle Interval' to '3600 sec'

Image1.43.1

Image1.43.2

23. Download Product Status Report (PSR) with all histograms.

24. Compile and Submit Documentation:

- Give completed checklist shown in Image1.45.1, both Product Status Reports (PSRs), and Data Transport File to your Dealer Technical Communicator (TC) along with this Service Letter program number and CPI number 402755. PSRs are especially important when used to justify Clutch #1 replacement.
- Request the Dealer TC to submit the information through CPI Feedback within the Service Information Management System (SIMSi).

Image1.45.1

Group Number 2

Image2.1.1

1. Download a Product Status Report (PSR) through ET.

2. If both 585-2 and 673-2 Transmission Output Speed Sensor codes have been logged in the same hour at some time since a prior transmission repair, rebuild transmission clutch #1 with new parts.

NOTE: If no instances of the above slip codes have been generated since the last repair, proceed to Step 6.

3. Begin by draining the powertrain oil from sump and removing the transmission. Refer to SEBU9416, Operation and Maintenance Manual, for service and fluid drain and fill information. Refer to the M0076745, Disassembly and Assembly, for removal and installation instructions for the transmission. Refer to Image2.4.1 and 2.4.2.

Image2.4.1

Image2.4.2

5. After rebuilding Clutch #1, re-install the transmission. There are 22 bolts, tighten each bolt to a specified torque of 105 +/- 20 N.m (77+/-15 ft lbs).

Image2.6.1

6. Flash Powertrain Software:

- File name is 558-8659V00.fl2

7. Run the Transmission Fill Calibration:

Refer to Images2.8.1 and 2.8.2.

- In ET, select Service > Calibrations
- Scroll down to Powertrain ECM
- Select 'Transmission Fill Calibration'
- Follow on-screen prompts

Image2.8.1

Image2.8.2

If Transmission Fill Calibration routine PASSES WITH WARNING or FAILS to calibrate:

- Any valve that shows Completion Status as FAILURE ?AND- Pulse Time is at maximum limit shall be removed from the transmission and replaced with a new valve.

- All old valves or new valves that fail or pass with warnings must be returned to Caterpillar. Include machine serial number and transmission clutch number for traceability.

- Run calibration again. If all calibrations pass without warnings, proceed to the next step. If not, replace defective valves and repeat calibration.

Refer to Image2.9.1 for a flowchart describing this step.
Refer to Images2.9.2 and 2.9.3 for examples of failed calibration messages from ET.

Image2.9.1

Image2.9.2

Image2.9.3

8. Once all calibrations PASS successfully, without warnings, download a Data Transport file (transmission fill calibration history):

Refer to Image2.10.1 and 2.10.2.

- In ET, connect to powertrain ECM
- Click on Information > Data Transport
- Dialog box displays "The data has been successfully loaded from the ECM"
- Select [OK]
- Ensure "Calibration History" is the only box checked
- Select 'Save to File' at bottom of display screen
- The default file name should include machine name and date, and default location should be fine (c:\Program Files\Caterpillar Electronic Technician\ Downloads\Offboard Files)
- Select [Save]

Image2.10.1

Image2.10.2

8. Run the Brake Touch-up Pressure Calibration:

Refer to Images2.11.1 and 2.11.2.

- In ET, select Service > Calibrations
- Scroll down to Powertrain ECM
- Select 'Brake Touch-Up Pressure Calibrations'
- Follow on-screen prompts

Image2.11.1

Image2.11.2

9. Download Product Status Report (PSR) with all histograms.

10. Compile and Submit Documentation:

- Submit both Product Status Reports (PSRs) and Data Transport File to your Dealer Technical Communicator (TC) along with this Service Letter program number and CPI number 402755. PSRs are especially important when used to justify Clutch #1 replacement.
- Request the Dealer TC to submit the information through CPI Feedback within the Service Information Management System (SIMSi).