Failures

EPV(EPK) braking

If you hear an air leak it can be EPV(EPK) braking, so you need to restart the ARS system - close EPV(EPK), disable ARS, wait 3-10 seconds, enable ARS, open EPV(EPK)

To prevent an EPV(EPK) braking:

1. Open EPV(EPK) ONLY after switching on the ARS
2. If you need to change a reverse: close EPV(EPK), disable ARS, change reverse, enable ARS, open EPV(EPK).

Autostop braking

• Return autostop bracket:

1. Apply an emergency brake
2. Press "Reset Contacts" button below the right window, right from the UAVA.

Important:You must press "Reset Contacts" button, NOT "Disable UAVA" lever!

Loss of direction signal

It happens if you disable an ARS-ALS system. Without direction signal you can't drive faster than 40km/h.

Just drive to the station and direction signal will back.

Driving without ARS

In the event you need to drive without ARS (for example, the ARS system has stopped working properly) these are the steps for disabling the ARS system.

Important:Always contact the dispatcher for permission/instruction before breaking any seals!

These instructions presume the train is already set up and able to drive

81-717

• Close EPV(EPK), then disable ARS/ALS.
• Break the seal on RC-1 (ARS disconnect) and enable it.
  • For MVM only:
  • Break the seal on RC-UOS (Speed Limitation) and disable it.
  • Break the seal on KAH Button Cover, the KAH Button must be pressed to drive.
• ARS is now disabled.
  • Note: You will need to hold the attention pedal to drive (Unless VAH is enabled)

81-720 (Yauza)

• Break the seal on the ALS Button Cover, and press the button.
• Break the seal on the KAH Button Cover, and press the button.
• ARS is now disabled.

81-722

(Coming soon)

Ezh3

• Close EPV(EPK), then disable ARS/ALS.
• Break the seal on RC-ARS (ARS disconnect) and enable it.
• ARS is now disabled.
  • Note: You will need to hold the attention pedal to drive