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Mini-Jector Models 45 and 50 have set screws that connect the barrel plunger assembly to the carriage (guide rod) system.
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The set screws can cause mis-alignment between the barrel and the guide rods if they are tight against the barrel.
The screws should be installed such that they only lightly contact the barrel. Mis-alignment can also occur if a spring
should happen to break.
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Install the set screw using the following procedure:
- Have the set screw extend through the rear casting. Place the barrel into the casting so the set screw goes into the pocket.
- Place the outer cap onto the dowel pins and assemble with the 4 ¼-20 bolts.
- Back out the set screw so there is no pressure against the barrel, making sure the set screw is still in the pocket. Tighten the 4 ¼-20 bolts.
- Tighten the set screw so there is light pressure against the barrel.
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While only 1 set screw is required, some machines have both a front and back set screw. In the case of a machine with 2 set screws, use the same procedure for both, or remove one.
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