The cams are all fastened together by four long bolts extending from cam No. 2 and ending at cam No. 9. They are all keyed to the main shaft and held in place by a set screw under cam No. 7. The cams can be shifted a little sidewise but should set against a collar on the left side of the main shaft under cam No. 2. Cam No. 10 is held in place by a key on the shaft and a set nut and is kept from working toward the left by a locating piece fastened to the main shaft.
The cams should be kept clean to prevent undue wear. Under ordinary conditions, the cams should be cleaned once each week. This may be accomplished by locking the controlling lever out so the cams will continue to rotate. Then hold a rag against the surface of the cam. A small amount of a mixture of gasoline and kerosene on the rag will help to cut all dirt and grit loose from the cams, and leave the surface in good condition and reduce the wear. Cams allowed to run without being cleaned will wear very rapidly and soon cause much trouble and expense.
FIRST ELEVATOR SLIDE GUIDE
The first elevator slide guide contains the intermediate bar and pawl (assembled), adjusting screws for the same, first elevator jaw duplex rail operating blocks, and the elevator transfer slide releasing lever.
The height of the intermediate bar and pawl is adjusted by the two small screws that pass through the top and touch the bar. The purpose of the bar and pawl is to push down any spacebands that may not have dropped to normal position as the line is carried from casting position to the transfer. If the pawl was set too high, the spacebands would strike the second elevator bar, and wear the lower rail.
The bar should be set so that when the second elevator is seated at transfer position, the pawl, when raised to its highest point, will be in line with the bottom of the second elevator bar. This adjustment is made with the two screws that pass through the slide guide and touch the intermediate bar.
It is also necessary for both ends of the intermediate bar to be the same height. After adjusting the pawl, turn the machine until the transfer slide finger has entered the channel; lay a six-inch scale flat on the first elevator jaws in line with the bar, but clearing the pawl. Raise the first elevator slide by hand until the scale touches the bar. Adjust the bar horizontal with the scale by the same two screws that pass through top of the slide guide.
Duplex Rail Operating Blocks
The first elevator jaw duplex rail operating blocks are fastened to the slide guide adjusting strip and have a limited adjustment, but when they are worn so they will not operate the rail properly, they should be renewed.