Failures

EPV(EPK) braking (81-717, E, Em508, Ezh, Ezh3)

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:

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

RVTB braking (81-722)

If there's an air leak, then it can be RVTB braking, so you need to switch movement direction to 0, wait until air stops leaking (5-7 secs), then switch direction to way you need.

To prevent RVTB braking:

• If you hear ARS ringing, then confirm as quick as you can, by pressing attention pedal. The ~3 seconds of not confirming ARS causes a RVTB leak.
• If you drive on emergency mode or without ARS and didn't enable "Driving w/o attention pedal", then you need to hold attention pedal, or else RVTB will start braking.
  • Note: if it started and you didn't hold pedal, then you just need to start holding it again, so the air must stop leaking.

THERE IS A WAY TO DISABLE RVTB, to do this, you need a dispatcher permission to break seal on RVTB valve, then disable it.

Autostop braking

If you passed prohibiting signal with autostop, the autostop brake engages

81-717, E, Em508, Ezh, Ezh3

• Apply an emergency brake
• Press "Reset Contacts" button below the right or left window, right from the UAVA.

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

81-720 "Yauza"

• Turn reverser to 0 position
• Wait until air stops leaking (about 5-7 seconds)
• Turn reverser to direction you need

81-722

• Turn movement direction to 0
• Wait until air stops leaking (about 5-7 seconds)
• Turn movement direction to direction you need

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"

• If you need to switch to ALS mode, where you can see an ALS speedlimit, but you can exceed it, then:
  • Break the seal on ALS cover and press the button.
  • ALS mode is now on.
• If you need to disable (block) both units of BARS, then:
  • Break the seal on "BARS modes" switch and switch to "BARS 1+2" mode (just pressing the (rightwards) on switch, until it stops turning).
  • Break the seal on KAH cover and press the button.
  • Both units of BARS are now blocked.
    • Note: you can drive lower than 20 km/h, to exceed this speed, you need to switch to ALS mode.

81-722

• 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 antetion pedal to prevent RVTB start leaking (Unless "Driving w/o attention pedal" is enabled).

Ezh

• Close EPK, then disable ARS.
• Break the seal on RC-ARS and enable it.
• Break the seal on UOS (next to battery switch) and switch it.
• Break the seal on TAH and enable it.
• ARS is now disabled.
  • Note: You will need to hold the attention pedal to drive.

Ezh3

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

Emergency driving

There are some situations, where you can't drive in regular mode. Here you need to switch to emergency control mode.

Important:Always inform a dispatcher, when you switch to emergency mode! Once you enabled it, you must disembark passengers on nearby station!

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

81-717

• Close EPV(EPK), then disable ARS.
• Move reverser to neutral, pull it out (Shift + 7).
• Disable VU .
• Pull reverser in KRU shaft (Shift + 8).
• Move reverser to position 1 or 2 - these are Driving positions.
• Enable ARS and open EPV(EPK).
• To start moving, hold attention pedal and start holding KRP .
• Once KRP is not pressed, the scheme will disassemble. When pedal isn't holded, the pneumatic auto-brake valve will engage.
• Brakes engage with brake valve.
  • Note: before switching KRU to 0, close EPV(EPK) and disable ARS switch.

81-720 "Yauza"

• If you need to enable emergency BBE, then:
  • Disable BBE and enable Emergency BBE.
• If you need to use emergency doors, then:
  • Unpress the "Close Doors" button.
  • Switch Emergency Doors.
  • Opening doors you do as usual, to close the doors you need to press "Emergency door close".
    • Note: this mode provides you to drive with opened doors, pay attention to doors' state.
• If you need to use KTR (braking with Brake and Release buttons), then:
  • Press "Auxiliary brake".
  • This brake has 4 states (0.0;1.0;1.7;2.4 kgf/sm^2 - It also depends on how much wagon is loaded), the Brake button will cause a higher state, meanwhile Release button cause a lower state.
  • If KTR doesn't work and electric brakes don't work too, then you need to switch to emergency brake valve (KrM):
    • Enable Emergency Brake switch.
    • Enable K-29 (KRMSH) valve, which is next to the brake valve (you can see it if switch a camera view).
    • Turn KrM by using hotkeys. KrM has 6 positions.
• If you need only emergency drive, then:
  • Move RV to 0 and pull it out (Shift + 7).
  • Pull reverser in RVR (Shift + 8) and switch to direction you need.
  • Switch Emergency Control right to the speedometer.
  • Enable Parking Brake switch on back panel.
  • Drive with Emergency X1 and Emergency X2 buttons on RV panel (or by using hotkeys). Brakes engage with KTR brake and release buttons (or with emergency brake valve).
• If you need to fully move to emergency mode, then:
  • Move RV to 0 and pull it out (Shift + 7).
  • Pull reverser in RVR (Shift + 8) and switch to direction you need.
  • Enable: Parking brake switch on back panel, Emergency doors on RV panel, Emergency Control, KTR (or emergency brake valve).
  • Drive with Emergency X1 and Emergency X2 buttons on RV panel (or by using hotkeys). Brakes engage with KTR brake and release buttons (or with emergency brake valve).

81-722

Important:In this case you need to break seals, so you must contact dispatcher for permission

• Switch Movement Direction to 0.
• Disable ALS, ARS.
• Break seal on VRU and switch it leftwards to the mode AH
• Press Emergency Brake button and turn brake valve to 2nd positon.
• Switch Movement Direction to direction you need.
• Hold attention pedal, or else RVTB will start leaking (Unless "Driving w/o Attention Pedal" is enabled).
• Drive with AH button on the left side. Brake with brake valve.

E, Em508, Ezh, Ezh3

Currently (before Metrostroi 2018 update) emergency mode on these types of trains doesn't work.