. American engineer and railroad journal . lve or bushing to theexhaust with tlie piston and slide valve in emergency position. Close cocks 2 and 3 and note the rate of fall of pressureindicated by the brake-cylinder gauge hand, which is now con-nected only wilh the small volumes between cocks 2 and 3 andthe triple valve. A leakage greater than 5 pounds in 10 secondsindicates cither excessive check-valvt leakage or that the pistontloes not seal against the cylinder-cap gasket. At I he completion bf this test, open cocks 2 and 3 in the ordergiven. Sec. B, Test No. 2.—Leakage at Exhaust in Relea
. American engineer and railroad journal . lve or bushing to theexhaust with tlie piston and slide valve in emergency position. Close cocks 2 and 3 and note the rate of fall of pressureindicated by the brake-cylinder gauge hand, which is now con-nected only wilh the small volumes between cocks 2 and 3 andthe triple valve. A leakage greater than 5 pounds in 10 secondsindicates cither excessive check-valvt leakage or that the pistontloes not seal against the cylinder-cap gasket. At I he completion bf this test, open cocks 2 and 3 in the ordergiven. Sec. B, Test No. 2.—Leakage at Exhaust in Release SlideValve of Emergency-valve Leaking. Open cock r, and after the brake-cylmder pressure is ex-hausted close cock 3 and again coat the exhaust port with soap-suds to determine if there is any leakage from the auxiliaryreservoir to the brake cylinder past the slide valve when thetriple valve is in release position, or from the brake pipe to the s S f 1 X ! n/rfsufrcxnwfmn<OjS/i)coc//ursr i ci/Tovrcoc/fz i ■ ■ ruo i OfAin cocirs. K-HAAIOCmD OP£^Ar/A/a PISTON les/smNCfmcpeAS/naosvice 7>f>£SrA/ID effAK£CVtlND£/f Ac/i/i lAfff ff^se/fvofff t=^ af?AK£P/Pf VOLU/ftPfS£fiVOf^. T^ n:
Size: 2152px × 1161px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
