. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . indicate separate exhaust valve was passed forward end of interceptingvalve and that outside rings on highpressure valve, bypass valves and for-ward rings on intercepting valve wereO. K. If blow does not stop, it iseither the outside rings on high pres-sure valve, bypass valves or forwardrings on intercepting valve that is blow-ing. To determine which it is, thequickest way is to make an examina-tion: First, the bypass valves; second,the high pressure valve, as either ofthem are more liable t
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . indicate separate exhaust valve was passed forward end of interceptingvalve and that outside rings on highpressure valve, bypass valves and for-ward rings on intercepting valve wereO. K. If blow does not stop, it iseither the outside rings on high pres-sure valve, bypass valves or forwardrings on intercepting valve that is blow-ing. To determine which it is, thequickest way is to make an examina-tion: First, the bypass valves; second,the high pressure valve, as either ofthem are more liable to blow than isthe intercepting valve. However, if noblows are found that would require theexamination, we are ready to test theinside valve rings and cylinder pack-ing by moving the reverse lever for-ward far enough to partly open for-ward port, cylinder cock 2 open; ifsteam blows quite strong at cylindercock, the forward inside rings or cylin-der packing is defective. To determinewhich it is, place reverse lever in fullforward gear, and if blow stops, cylin-der packing is O. K. and inside forward. 4-6-0 ENGINE ON THE .ADRIATIC RAILWAY OF ITALY. tight, and low pressure valve or bypassvalves blowing. If no blow, they areO. K. Test cylinder packing by drop-ping lever forward as in case of simpleengine. To test high pressure side, place en-gine on bottom quarter, cylinder cockson that side open, separate exhaustvalve open, blank valve, give enginesteam. If a blow is indicated at thestack and cylinder cocks, it is eitherthe high pressure valve, forward endof intercepting valve or bypass determine which it is, remove nuton intercepting valve stem, slip on apiece of pipe of proper length and re-place nut. This will hold interceptingvalve back in compound position, there-by preventing high pressure steamfrom reaching low pressure steamchest and blowing by the forward endof intercepting valve and out of sep-arate exhaust to stack. Therefore, ifblow is stopped by fastening the
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