To make this adjustment turn the machine until the first elevator is resting on the vise cap. Move the adjusting screw so the stop rod pawl will just pass below the dog. To test, have machine in normal position, place a thin matrix on the vise cap under the first elevator adjusting screw. Pull out on the starting and stopping lever, setting the machine in action. The first elevator, not going to its proper position, the driving clutch should be forced out of action by the vise automatic. After backing the machine a trifle and removing the matrix, the machine should start.
The machine will not stop when making this test, if either the lip of the disk dog, or the pawl is damaged. If damaged or worn, replace with new parts, as the vise automatic should always be in working condition.
If the machine is delayed in stopping when the vise automatic goes into action, look at the 15/32 and 1/32 inch adjustments on the friction clutch.
When replacing the mold disk dog, be sure that the screw goes between the spring and the pin. This is accomplished by turning the screw down until it is below the level of the pin. Then push in on the dog until the pin strikes the screw. Raise the screw slowly until the pin will just pass under the end of the screw, pushing in on the dog while the screw is being raised. Push in on the dog and turn the screw down just inside the pin. The screw will then be between the spring and the pin. Be careful not to turn the screw down on the spring, as it will damage the spring and not allow the dog to operate.
On the machines with four-pocket mold disks, the dog is pushed forward as the mold slide comes forward in ejecting position. This action of the dog would operate the automatic, throwing the clutch out of action and stopping the machine at ejecting position. To overcome this action, there is a stop rod lever and bracket assembled on the vise frame in front of the automatic stop lever. The lever is fastened to the bracket by a fulcrum screw. One end of this lever carries a small roller, and the other end rests above a pin in the stop rod. The roller runs on a runway at the back of the first elevator slide on the right-hand side. The stop rod is pulled down below the mold disk dog by the lever until the slide moves downward, the roller follows the runway, when owing to a depression, the roller drops, releasing the lever and permitting the stop rod to come to operating position in front of the dog. As the slide moves to transfer position, the lever pulls the stop rod down below the dog.
FILLING PIECE AND SAFETY LUG
Attached to all new machines is a filling piece that is known as the simple two-letter attachment. This attachment is fastened by two screws to the vise cap, and when in operating position, it prevents the first elevator from dropping down to normal position. This attachment permits the assembling of a line of matrices in the regular position and casting them in the auxiliary position. Whenever this attachment is used, the duplex rails on the assembling elevator must not be used.
On all machines carrying headletter or special display molds, the simple two-letter attachment must always be used instead of the duplex rails.
At the side of these special molds there is a small lug fastened to the mold disk. This is known as a safety stop. When operating, a machine equipped with these special molds, if the simple two-letter attachment should not be placed in position, this safety stop would immediately come in contact with a safety plate, fastened to the first elevator back jaw, holding the first elevator off the vise cap and allowing the vise automatic to stop the machine, preventing a squirt, and damage to the first elevator jaws.