Endurant HD
TRSM0950 EN-US
|
February 2025 - A

Main Shaft

Special Instructions

Ensure to determine and install the Ideal Main Shaft Selective Washer during Main Shaft Assembly.

Note: The Main Shaft End-Play Service Procedure is required if one or more of the following parts are replaced:

  • Clutch Housing
  • Main Housing
  • Input Shaft
  • Input Shaft Bearing
  • Main Shaft Bearing
Caution
Failure to determine and install the Ideal Main Shaft Selective Washer results in incorrect Main Shaft End-Play resulting in transmission component damage.

Special Tools

  • 5/32 OD Air Line

Component Identification

_Graphics/_LineArt/TRTS0950_MainShaft_ID.png

1. Main Shaft Selective Washer - 6.525 mm (0.257 in), 6.712 mm (0.264 in) or 6.900 mm (0.272 in) (x1)

2. Reverse Gear

3. Main Shaft Washer 6.525 mm (0.257 in) (x4)

4. Rail D Sliding Clutch

5. Primary Driven Gear

6. Secondary Driven Gear

7 Main Shaft Assembly

8. Rail C Sliding Clutch

Disassemble the Main Shaft

  1. Place Main Shaft Assembly horizontally on a clean flat surface.

    Caution
    Secure Main Shaft Assembly while on flat surface to avoid unexpected movement. Failure to properly secure Main Shaft Assembly could result in component damage and/or personal injury.

  2. Remove Rail C Sliding Clutch.

    _Graphics/_Raster/IMG_2233.png

  3. Place Main Shaft assembly vertically on a clean flat surface.

    Caution
    Secure Main Shaft Assembly while on flat surface to avoid unexpected movement. Failure to properly secure Main Shaft Assembly could result in component damage and/or personal injury.
    _Graphics/_Raster/IMG_2237.png

  4. Remove Main Shaft Key.

    _Graphics/_Raster/IMG_2240.png

  5. Rotate and remove the Main Shaft Selective Washer above Reverse Gear.

    _Graphics/_Raster/IMG_2243.png

  6. Measure the Main Shaft Selective Washer with a micrometer and record reading in table.

    Note: The Main Shaft Selective Washer above Reverse Gear is available in 3 thicknesses, 6.525 mm (0.257 in), 6.712 mm (0.264 in) or 6.900 mm (0.272 in), to control Main Shaft End-Play. The recorded Main Shaft Selective Washer thickness is required for the Main Shaft Assembly Service Procedure. The 4 other Main Shaft Washers are 6.525 mm (0.257 in).

    Note: Need image of using micrometer to measure high points on selective washer

    _Graphics/_Raster/TRSM0950_EndPlay_MainShaftSelWasher.PNG

  7. Remove Reverse Gear.

    _Graphics/_Raster/IMG_2244.png

  8. Rotate and remove standard Main Shaft Washer above Rail D Sliding Clutch.

    _Graphics/_Raster/IMG_2247.png

  9. Remove Rail D Sliding Clutch.

    _Graphics/_Raster/IMG_2249.png

  10. Using magnets, rotate and remove standard Main Shaft Washer above Primary Driven Gear.

    _Graphics/_Raster/TRSM0950_MSDA_1431.png_Graphics/_Raster/TRSM0950_MSDA_1434.png

  11. Remove Primary Driven Gear.

    _Graphics/_Raster/IMG_2253.png

  12. Rotate and remove Main Shaft Washer above Secondary Driven Gear.

    _Graphics/_Raster/IMG_2255.png

  13. Remove Secondary Driven Gear.

    _Graphics/_Raster/IMG_2258.png

  14. Rotate and remove last Main Shaft Washer.

    _Graphics/_Raster/IMG_1887.png

Assemble the Main Shaft

  1. Place Main Shaft vertically on a clean flat surface.

    Caution
    Secure Main Shaft Assembly while on flat surface to avoid unexpected movement. Failure to properly secure Main Shaft Assembly could result in component damage and/or personal injury.
    _Graphics/_Raster/IMG_3489.png

  2. Install and rotate Main Shaft Washer, 6.525 mm (0.257 in), onto Main Shaft.

    _Graphics/_Raster/IMG_3488.png_Graphics/_Raster/IMG_3491.png

  3. Install a 5/32 OD air line into the main shaft spline to align and hold washer in place.

    _Graphics/_Raster/IMG_3494.png

  4. Install Secondary Driven Gear on Main Shaft with clutching teeth facing down.

    _Graphics/_Raster/IMG_3495.png

  5. Install and rotate Main Shaft Washer, 6.525 mm (0.257 in), above Secondary Driven Gear.

    _Graphics/_Raster/IMG_3498.png

  6. Slide the 5/32 OD air line up to align and hold washer in place.

    _Graphics/_Raster/IMG_3500.png

  7. Install Primary Driven Gear on Main Shaft with clutching teeth facing up.

    _Graphics/_Raster/IMG_3503.png

  8. Using magnets, install and rotate Main Shaft Washer, 6.525 mm (0.257 in) above Primary Driven Gear.

    _Graphics/_Raster/IMG_3505.png_Graphics/_Raster/IMG_3511.png

  9. Slide the 5/32 OD air line up to align and hold washer in place.

  10. Install Rail D Sliding Clutch and align the double slot with the 5/32 OD air line.

    _Graphics/_Raster/TRSM0950_MSEP_7356.png_Graphics/_Raster/IMG_3514.png

  11. Install and rotate Main Shaft Washer, 6.525 mm (0.257 in), above Rail D Sliding Clutch.

    _Graphics/_Raster/IMG_3518.png

  12. Slide the 5/32 OD air line up to align and hold washer in place.

    _Graphics/_Raster/IMG_3519.png

  13. Install Reverse Gear with clutching teeth facing down.

    _Graphics/_Raster/IMG_3521.png

  14. Determine the Ideal Main Shaft Selective Washer to install above Reverse Gear:

    Caution
    Failure to determine and install the Ideal Main Shaft Selective Washer results in incorrect Main Shaft End-Play resulting in transmission component damage.
    • If one or more of the following parts were replaced: Clutch Housing, Main Housing, Input Shaft, Input Shaft Bearing or Main Shaft Bearing, install the 6.525 mm (0.257 in) Main Shaft Selective Washer.

      Note: The Main Shaft End-Play Service Procedure is required.

    • If NONE of the following parts were replaced: Clutch Housing, Main Housing, Input Shaft, Input Shaft Bearing, or Main Shaft Bearing, install the Main Shaft Selective Washer recorded in Step 6 of the Main Shaft Disassembly Service Procedure: 6.525 mm (0.257 in), 6.712 mm (0.264 in) or 6.900 mm (0.272 in).

      Note: The Main Shaft End-play Service Procedure is NOT required.

    _Graphics/_Raster/IMG_3525.png

  15. Slide the 5/32 OD air line up to align and hold washer in place.

    _Graphics/_Raster/IMG_3528.png

  16. Install Main Shaft Key at the same spline as the 5/32 OD air line.

    Note: Insert Main Shaft Key while removing air line.

    _Graphics/_Raster/IMG_3533.png

  17. Install a magnet on Main Shaft Key to hold the key in place during final Main Shaft Assembly and installation into transmission.

    Note: Remove magnet from Main Shaft Key after installation of Main Shaft Assembly onto transmission.

    _Graphics/_Raster/IMG_3559.png

  18. Place Main Shaft Assembly horizontally on a clean flat surface.

    Caution
    Secure Main Shaft Assembly while on flat surface to avoid unexpected movement. Failure to properly secure Main Shaft Assembly could result in component damage and/or personal injury.

  19. Install Rail C Sliding Clutch and align the double slot with Main Shaft Key.

    _Graphics/_Raster/TRSM0950_MSEP_7356.png_Graphics/_Raster/IMG_3562.png