Endurant HD
TRSM0950 EN-US
|
August 2024 - A

MTM Rail B, C and D Cylinder Inspection Procedure

Special Instructions

Perform this entire procedure only if guided here by Endurant HD Troubleshooting Guide TRTS0950: Fault Code 617, 740, 760 and/or 775

  • and
  • MTM Serial Number is less than 12S22342093445
  • and
  • MTM Part Number is A-10000715 or A-10002594

NOTICE: Ensure vehicle air system provides proper transmission air supply and air quality, refer to Vehicle Maintenance Recommendations. Failure to provide proper transmission air supply and air quality results in degraded transmission performance and transmission component damage.

Special Tools

None

Note: MTM removal and installation requires the transmission to be removed from the vehicle. Reference Endurant HD Service Manual TRSM0950, Transmission Removal Service Procedure.

Component Identification

MTM, Fore view

_Graphics/_LineArt/TRSM0950_MTMInspection_ID_Fore_2.png

MTM, Aft view

_Graphics/_LineArt/TRSM0950_MTMInspection_ID_Aft.png

1. MTM Rail B

2. MTM Rail D

3. MTM Rail C

_Graphics/_LineArt/MTM_SerialTagLocation.png

1. Part Number 2. Serial Number

Procedure - Inspection

  1. Place MTM on a clean surface.

  2. Visually inspect Rail B Cylinder covers (fore and aft) for loose cap screws, loose covers and/or protruding O-rings.

    • If no loose cap screws, covers, or protruding O-rings are found, go to Step 3.
    • If a loose cap screw, cover and/or protruding O-ring is found, go to Endurant HD Service Manual TRSM0950 MTM Rail B, C and D Cylinder.

    Rail B Cylinder Cover Fore

    Rail B Cylinder Cover Aft

    _Graphics/_Raster/TRSM0950_MTM Inspect_Rail B Inspect_Fore.png_Graphics/_Raster/TRSM0950_MTM Inspect_Rail B Inspect_Aft.png

  3. Visually inspect Rail C Cylinder covers (fore and aft) for loose cap screws, loose covers and/or protruding O-rings.

    • If no loose cap screws, covers, or protruding O-rings are found, go to Step 4.
    • If a loose cap screw, cover and/or protruding O-ring is found, go to Endurant HD Service Manual TRSM0950 MTM Rail B, C and D Cylinder.

    Rail C Cylinder Cover Fore

    Rail C Cylinder Cover Aft

    _Graphics/_Raster/TRSM0950_MTM Inspect_Rail C Inspect_Fore.png_Graphics/_Raster/TRSM0950_MTM Inspect_Rail C Inspect_Aft.png

  4. Visually inspect 3rd Rail C Cylinder cover Aft cap screw (not accessible).

    • If cap screw is visually tight, go to Step 5.
    • If cap screw is visually loose, go to Endurant HD Service Manual TRSM0950 MTM Rail B, C and D Cylinder.
    _Graphics/_Raster/TRSM0950_MTM Inspect_Rail C Inspect_InaccessableScrew.png

  5. Visually inspect Rail D Cylinder covers (fore and aft) for loose cap screws, loose covers and/or protruding O-rings.

    • If no loose cap screws, covers, or protruding O-rings are found, go to Step 6.
    • If a loose cap screw, cover and/or protruding O-ring is found, go to Endurant HD Service Manual TRSM0950 MTM Rail B, C and D Cylinder.

    Rail D Cylinder Cover Fore

    Rail D Cylinder Cover Aft

    _Graphics/_Raster/TRSM0950_MTM Inspect_Rail D Inspect_Fore.png_Graphics/_Raster/TRSM0950_MTM Inspect_Rail D Inspect_Aft.png

  6. Determine next step:

    • If guided here by Endurant HD Troubleshooting Guide TRTS0950: Fault Code 617 and no protruding O-rings or loose cover cap screws are found, go (return) to Endurant HD Troubleshooting Guide TRTS0950: Fault Code 617 Step H.
    • If guided here by Endurant HD Troubleshooting Guide TRTS0950: Fault Code 740 and no protruding O-rings or loose cover cap screws are found, go (return) to Endurant HD Troubleshooting Guide TRTS0950: Fault Code 740 Step C.
    • If guided here by Endurant HD Troubleshooting Guide TRTS0950: Fault Code 760 and no protruding O-rings or loose cover cap screws are found, go (return) to Endurant HD Troubleshooting Guide TRTS0950: Fault Code 760 Step C.
    • If guided here by Endurant HD Troubleshooting Guide TRTS0950: Fault Code 775 and no protruding O-rings or loose cover cap screws are found, go (return) to Endurant HD Troubleshooting Guide TRTS0950: Fault Code 775 Step C.

    Example of a loose Rail (C) Cylinder Cover with a protruding O-ring.

    _Graphics/_Raster/RailC_CylCover_LooseORing.png

    Example of a loose Rail (B) Cylinder Cover with a protruding O-ring.

    _Graphics/_Raster/TRSM0950_MTM Inspect_Rail (B) Cylinder Cover Oring.png

    Example of a loose Rail (C) Cylinder Cover cap screw.

    _Graphics/_Raster/TRSM0950_MTM Inspect_Rail (C) Cylinder Loose Cover.png

Warranty Information

  1. Reference the relevant warranty information provided in service bulletin TAIB-0994