To
ensure
Continuity of BP Pressure
Proper connection of BP hose pipes
Opening of all Angle COCs
Working of DV of few wagons front
& rear portion of Train
By Whom: LP and Guard of the Train (LP of Banker Loco if attached)
Occasions
After
attaching or detaching of Loco / vehicles in Train
During
Re-marshalling of Working Loco / Traction change
After attending
any brake system defects by disturbing BP continuity
After
performing shunting
While
clearing Stable Stocks
Before
restarting at en-route station if detained for more than 30 minutes
Goods
Train
Create BP
Pressure in locomotive – 5 kg/cm2
Ensure BP
Pressure in last vehicle (BV) – 4.8 / 4.7 kg/cm2
Drop BP
pressure in locomotive by A9 valve by 1 kg/cm2.
Close BP
Charging COC / keep LT switch in Test
Now Guard
to open Brake Valve in BV or BP Angle COC in last vehicle till BP drops to zero
and then close it.
LP to
ensure BP drops to Zero and not increasing again
Physically
ensure Brake application in few wagons at front & rear of Train
LP shall
keep A9 in release, open BP charging COC / keep LT switch in Lead
BP should
recreate to its initial reading.
Coaching
Train
Create BP /
FP Pressure in locomotive – 5 / 6 kg/cm2
Ensure BP /
FP Pressure in last vehicle (BV) – 4.8 / 5.8 kg/cm2
Drop BP
pressure in locomotive by A9 valve by 1 kg/cm2.
Guard to
ensure BP has dropped to 3.6 to 4.0 kg/cm2
Bring A9 to
Release& ensure original level of BP.
Close BP
Charging COC / LT switch in Test
Guard to
open Brake Valve in BV or BP Angle COC in last vehicle to drop BP up to 3.6
kg/cm2
LP to
ensure BP drops to 3.6 to 4 kg/cm2 in loco
Physically
ensure Brake application in few coaches at front & rear of Train
LP shall
open BP charging COC / keep LT switch in Lead
BP should
recreate to its initial reading.
Checking of D1 Emergency Valve
ALP has
to conduct this test
At crew
changing point after conducting continuity test
Procedure:
After
creating BP, ALP shall open D1 Emergency Valve and ensure BP dropping
CCB
Provided locos – LT Switch to be kept in Test position before opening
Brake Feel Test
LP shall
conduct this test
Immediately after starting from a crew
changing point
This test should be conducted after doing
continuity test also
Procedure
After attaining a speed of about 15
Kmph Apply A9 to drop BP pressure by 0.5 kg/cm2 & release
Observation
Shall feel the application of brake
Speed shall drop by about 10 Kmph
Brake Power Test
LP shall
conduct this test
In first Block Section or first
opportunity
Speed should reach 60 – 70 Kmph
(coaching)
Speed should reach 40 – 50 Kmph
(Freight)
Procedure
Apply
A9 to drop BP pressure by 1 kg/cm2 (Coaching / Loaded Freight Trains)
By 0.5 kg/cm2 (Empty Freight Train)
Release
A9 (Run position in CCB) after a small pause
LP Shall
Observe & Ensure
Speed
of train should drop to 30 – 35 Kmph in Coaching Train
20 – 25 Kmph in Freight Train by the
time BP Pressure recharges to 5 kg/cm2
LP Shall resume Traction after
complete recharging of BP Pressure and Air flow Indicator returns to its
original position
Duties
of ALP
ALP
Shall Observe & Ensure
LP Conducts Brake feel & Brake
power tests
Remind LP about the same if not done
Shall assess the effectiveness of brake
power in both tests
Shall note down in diary the following:
Location & number of
masts A9 applied
Pressure dropped
Speed of Train at start and at
the end of Test
