FIELD OPERATIONS 



355 



Fill all grease and oil cups and grease carefully the traction 

 rings and roller faces. See that in all cases the lubricant is 

 fed to the bearings. Use good graphite, hard oil, or grease 

 in all compression cups, and screw the caps down so as to 

 force the grease through the journal box. When the machine 

 is in operation, a turn should be given on all compression 

 cups at least once every 2 hr. 



"Instructions for Starting and Managing Boilers. See that 

 all connections with the boiler are properly made and are 

 tight. Fill the boiler up to or above the second gauge with 

 water, and take particular notice while it is being filled that 



FIG. 8 



all handhole plates and connections around it are tight; 

 particularly note that the check-valve does not leak. Build 

 a slow fire in .the boiler until the water becomes hot; under 

 no circumstances force the fire until after steam begins to 

 generate; this can be determined by leaving the top gauge- 

 cocks open until steam appears. After about 10 or 15 Ib. 

 of steam has been raised, note whether there are any slight 

 leaks appearing in the boiler or its connections. After steam 

 has been raised to the pressure to be carried, try the safety 

 valve and be sure that it is in good working order. It is 

 advisable to lift the safety valve from its seat at least twice 



