. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . rfaces rubbing, a light blow of the stickon the slide valve seat will leave the de-sired light coating of loose the work is completed, the slidevalve and its seat must be entirely freefrom oil or grease. Care should be takenwhen handling the parts after lubricatingthat the hands do not come in contact H-3 CHANGE-OVER VAIVE to get upon the gaskets or rubber seatedvalves. The change-over slide valve and seatand piston should be lubricated in thesame manner as the c
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . rfaces rubbing, a light blow of the stickon the slide valve seat will leave the de-sired light coating of loose the work is completed, the slidevalve and its seat must be entirely freefrom oil or grease. Care should be takenwhen handling the parts after lubricatingthat the hands do not come in contact H-3 CHANGE-OVER VAIVE to get upon the gaskets or rubber seatedvalves. The change-over slide valve and seatand piston should be lubricated in thesame manner as the corresponding partsof the triple valve. Rate of Equalizing Reservoir Reduc-tion. The size of opening through the pre-liminary exhaust port bushing of thebrake valve has been the subject of con-siderable dissention during discussions ATMOSPHERE-TOLOAD CYLINDER,TO RETAINING VALVE FOUR COMPARTMENT RESERVOIR■■■■■■■■■ . .■■■ .■ ■ ... ■ .■■■ ■.■ . .■:.<,::. r- AUXILIARYRESERVOIR REDUCTIONRESERVOIR TAKE UPRESERVOIR £^r =ef CYLINDER in : .■■.■■■■. -BRAKE PIPE FULL SERVICE AFTER 1J POUNDS IS OBTAINED IN REDUCTION RESERVOIR. cloth or some soft material. All oil, gumor grease should be thoroughly removedfrom the slide valve and its seat in thebush and the face of the graduating face of the graduating valve, bothupper and lower surfaces of the slidevalve, the slide valve seat and the upperportion of the bushing where the slidevalve spring bears should be lubricatedwith a high grade of very fine, dry, puregraphite, rubbing it in so that as much aspossible will adhere and fill the pores ofthe brass and leave a very light, thin coatof graphite. with the lubricated parts as the thincoating of graphite is easily removed. The triple valve piston ring and thebushing in which it works should besparingly lubricated by first pushing thepiston to release position and applying adrop or two of oil to the circumference ofthe piston bu
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