APM working with bogie mounted brake system.

2. DV
AUTOMATIC PRESSURE MODIFICATION:-
1. APM device is interposed between bogie side frame of Casnub
bogie and the under frame of wagons.
2. APM should sense the gap only at the time of air brake
application.
3. During remaining time it should not be in contact with the bogie
Created by
srinivas
APM
RESERVIOR
3.8 2.2
CPB

3. DV
AUTOMATIC PRESSURE MODIFICATION:-
It restricts the brake cylinder pressure coming from the Distributor valve
to 2.2 ± 0.25 Kg/cm2 in empty condition of the wagon and allows the brake
cylinder pressure of 3.8 ± 0.1 Kg/cm2 in loaded condition of the wagon.
The factory setting for the movement of the sensor point is 104mm which is
consisting of loaded & empty zone. First 79mm{top-bottom} of the sensor point is
for LOADED ZONE & the balance 25mm {bottom-top} is for the EMPTY
Created by
srinivas
APM
RESERVIOR
3.8 3.8
CPB

4. 6
kg/cm2
APM RESERVIOR
COAC COAC
FP
HOSE
BP
COAC
DC
DC
BP
HOSE
ISOLATING
COCK
CPB
BP HOSE
BP
T
FLANGE
APM
FP
HOSE
COAC
BP
HOSE
DV
(WITH OUT PT)
NRV
AR
100 LTRs
ISO.COCK
WITH VENT
FLEXIBLE
HOSE
PIPE
10” BC FOR
BOGIE 2
10” BC FOR
BOGIE 1 (WITH
HANDBRAKE
CABLES)
FP
6kg/cm2
5kg/cm2
3.5kg/cm2
3.8
EMPTY
2.2
LOAD
3.8
Created by
srinivas