AIR-BRAKE EQUIPMENT 9 



The additional parts required to equip with an engine- 

 truck brake an engine that is already provided with equipment 

 A-l, or its equivalent, are as follows: One engine-truck brake 

 cylinder of specified size, one auxiliary reservoir of size required, 

 one reservoir drain cock (J-in.), one hose connection, 1-in. 

 X22-in., with |-in. fittings, one 5-in. cut-out cock; these are 

 all classed as schedule D-2. The A-l equipment, however, 

 has been superseded by the ET locomotive brake equipment. 



The additional parts required to equip with double-pres- 

 sure control apparatus an engine and tender already provided 

 with equipments AD and PL are as follows: One* C-6 feed- 

 valve, with two gaskets, one* feed- valve pipe connection for 

 brake valve, one* reversing cock, complete, two E-l safety 

 valves for driver and tender-brake cylinders, set at 53 lb.; 

 these are all classed as schedule U. 



Engines equipped with the old single-top governor, also 

 require another diaphragm portion and a Siamese fitting to 

 transform it to the duplex type. 



COMBINED AUTOMATIC AND STRAIGHT-AIR BRAKE 

 APPARATUS 



The combined automatic and straight-air brake apparatus 

 has been superseded by the ET locomotive brake equipment. 

 Additional parts required to equip with appliances for operat- 

 ing engine and tender brakes by straight air an engine, already 

 provided with equipments A-l or AD are as follows: One S-3 

 straight-air brake valve, one C-6 feed -valve set at 45 lb., one 

 feed-valve pipe bracket, with gasket, one No. 2 double check- 

 valve, one E-l safety valve set at 53 lb.; these are all classed 

 as schedule SWA. It is strongly recommended that a single- 

 pointer air gauge be used with this equipment to indicate 

 brake-cylinder pressure. If desired to provide for an inde- 

 pendent release of the driver brakes with this equipment, a 

 S-3-A brake valve should be specified instead of the S-3. 



Additional fixtures required to equip with straight-air brake 

 an engine tender, already provided with equipments FL, HK, 



*When there is no necessity for adhering to former standards, 

 the B-6 double-pressure feed-valve will be substituted for these 

 items when so specified. 



