A minimum of two Jiffy Latch-Lok Assemblies per mold are required. However, four units are preferred. Larger molds may require six, eight or more assemblies.
The Latch-Lok should not be used to overcome springs. Springs can cause the plate to deflect and bind as soon as one latch bar is released, even if only the slightest timing difference is present. Latch bars and release bars must be properly aligned with the body. The bars should enter the body freely. The latch bar should be fully released prior to the stripper bolts starting to pull the plate. Check the stripper bolt length. There should be no preload on the latch bars in the locked position. Latch-Loks should only be used in a horizontal press; they are not recommended for use in a vertical press; Otherwise, the weight of the entire plate must be lifted.
When only two units are used, the bodies should be mounted on the centerline of the mold for balanced operation. If using more than two assemblies, symmetric positioning of the Jiffy Latch Lok assemblies about the mold centerline is recommended. Balance is critical in so the mold design should be symmetrical. If not, be aware of any binding that may take place.