ROl MBLE ENG1NKKK. 117 



should alv..iys be long enough (4 to 6 inches) to in- 



.;azmc and condenser from getting too 



: condense fast enough to give a 



us feed of >r road engines 



used. These can be connected 



L* or directly to the steam chest. 



In a general way it may be stated that prc- 



: >ns mu>t 1 to insure the satisfactory oper- 



i of all sight-feed lubricators. Use only the 

 of oil, one gallon of which is worth five gallons of 

 ;> stuff and do far better service, as inferior 

 grades not only clog the lubricator but choke the 

 'ur the sight-glass, etc., and the refuse 

 of such oil will accumulate in the cylinder suf- 

 ficiently to cause damage and loss of power, far ex- 

 ceeding the difference in cost of good oil over the 



p grades. 



At': hing a lubricator, all valves should be 



opened wide and live steam blown through the outer 

 vents for a few minutes to insure that the openings arc 

 <-e. Then follow the usual directions given 

 with all lubricators. Be particular in getting your lubrica- 

 tor attached so it will stand perfectly plumb, in order 

 the drop can pass up through the p hout 



'es, keep the drop-nipple clean, and be 

 part drain in cold weather. 



N( 11 about to leave you alone with your en- 



