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MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement

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  1. MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Determine the unloader assembly: 手順 1、 3の画像 1 MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Determine the unloader assembly: 手順 1、 3の画像 2 MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Determine the unloader assembly: 手順 1、 3の画像 3
    • There are two versions of the unloader assembly:

    • First image—earlier pressure washers feature an all-in-one assembly (part 8-0631) that’s easy to replace, but gave users the ability to break the pump.

    • Second image—later models use a tamper-proof, harder to remove unloader (part 8-0656), connected by a series of pipe fittings.

    • This guide is written for the tamper-proof unloader assembly.

    • If you need to remove an all-in-one style unloader, use a large adjustable wrench to unscrew the two large Banjo bolts. This will disconnect the unloader from the pump assembly.

  2. MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement: 手順 2、 2の画像 1 MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement: 手順 2、 2の画像 2
    • Before you begin, be sure that the engine is powered off and is cool to the touch.

    • Grab the plastic housing at the end of the spark plug wire.

    • Pull firmly to disconnect the wire from the spark plug.

  3. MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Loosen the hose clamp: 手順 3、 2の画像 1 MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Loosen the hose clamp: 手順 3、 2の画像 2
    • Use a 1/4" socket or a large flathead screwdriver to loosen the hose clamp near the inlet filter.

    • Slide the hose clamp away from the end of the hose.

  4. MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Disconnect the return hose: 手順 4、 2の画像 1 MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Disconnect the return hose: 手順 4、 2の画像 2
    • Wiggle the hose and pull it off of the brass nipple.

  5. MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Position the support block: 手順 5、 1の画像 1
    • Slide a 3" tall block underneath the pump assembly to help support the pump.

  6. MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Re-position the return elbow: 手順 6、 2の画像 1 MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Re-position the return elbow: 手順 6、 2の画像 2
    • Use a 1/2" or adjustable wrench to loosen and twist the return elbow half a turn, so that it faces the opposite direction.

    • This will allow the fitting to clear the pump edge without being removed.

  7. MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Loosen the filter: 手順 7、 2の画像 1 MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Loosen the filter: 手順 7、 2の画像 2
    • Use a large adjustable wrench to loosen and unscrew the filter.

  8. MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Remove the filter: 手順 8、 1の画像 1
    • Remove the filter with the return elbow attached.

  9. MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Loosen the input elbow: 手順 9、 2の画像 1 MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Loosen the input elbow: 手順 9、 2の画像 2
    • Use a 1" or large adjustable wrench to loosen and unscrew the pump input elbow.

  10. MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Remove the input elbow: 手順 10、 1の画像 1
    • Remove the input elbow fitting.

  11. MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Loosen the output assembly: 手順 11、 2の画像 1 MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Loosen the output assembly: 手順 11、 2の画像 2
    • Use a 3/4" or adjustable wrench to loosen and disconnect the coupling from the pump assembly.

  12. MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Remove the output assembly: 手順 12、 1の画像 1
    • Remove the output assembly.

  13. MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Clamp the output assembly: 手順 13、 1の画像 1
    • You will need to remove the remaining fittings from the output assembly in order to replace the unloader.

    • Secure the output assembly in a large vise.

  14. MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Loosen the output elbow: 手順 14、 3の画像 1 MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Loosen the output elbow: 手順 14、 3の画像 2 MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Loosen the output elbow: 手順 14、 3の画像 3
    • Hold the outlet fitting in place with a 15/16" or large adjustable wrench.

    • Use a 3/4" or adjustable wrench to loosen and unscrew the output elbow from the outlet fitting.

  15. MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement: 手順 15、 1の画像 1
    • Remove the output elbow with the quick-connect socket attached to it.

  16. MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Loosen the coupling nipple: 手順 16、 2の画像 1 MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Loosen the coupling nipple: 手順 16、 2の画像 2
    • Use a 3/4" or adjustable wrench to loosen and unscrew the coupling nipple from the unloader.

  17. MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Remove the coupling nipple: 手順 17、 1の画像 1
    • Remove the coupling nipple.

  18. MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Loosen the return hose nipple: 手順 18、 2の画像 1 MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Loosen the return hose nipple: 手順 18、 2の画像 2
    • Use a 11/16" or adjustable wrench to loosen and unscrew the return hose nipple from the unloader.

    • You do not need to disconnect the hose from the nipple.

  19. MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Remove the return hose: 手順 19、 1の画像 1
    • Remove the return hose nipple with the hose attached.

  20. MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Check for plug placement: 手順 20、 3の画像 1 MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Check for plug placement: 手順 20、 3の画像 2 MiTM Pressure Washers CA2703HDHB1 2017 Unloader Replacement, Check for plug placement: 手順 20、 3の画像 3
    • Only the unloader assembly remains.

    • Compare the original unloader with the replacement part. The replacement part may have a plug installed in the wrong port.

    • Use an 8 mm (5/16" OK) hex key to remove and re-install the plug into the correct port.

終わりに

To reassemble your device, follow these instructions in reverse order.

When you re-connect the fittings, clean off the old thread sealant and apply new thread sealant (tape or pipe dope).

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