MachineryHouse AL-346V, Инструкция по эксплуатации

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If the workpiece is not centered, loosen the jaws and adjust the workpiece, then re-tighten the jaws and repeat step5 .
if the workpiece is centered, fully tighten the jaws.
Removing jaws
1. Disconnect the lathe from power.
2. Place a piece of plywood on the bedway to protect it, then remove the chuck from the lathe.
3. Lay the chuck on a flat, stable surface, then insert the chuck key into a scroll keyway and rotate it
counterclockwise to back the jaws all the way out of the jaw guides.
4. Thoroughly clean the jaws with shop rags and mineral spirits, then apply a thin coat of an anti-rust protective
lubricant before storing them in a protected location free from moisture and abrasives.
Installing jaws
1. Place the chuck on a flat, stable surface.
2. Examine the side of the jaws-each is stamped with a number 1 through 3. Examine the jaw guides of the
chuck-each is stamped with a corresponding number (see Figure 16) .
Note: the jaws and jaw guides are machined to match and each jaw must be installed in its corresponding jaw guide.
Figure 16 Figure 17
3. Insert the chuck key into a scroll keyway and rotate it until you see the beginning of the scroll gear’s lead thread
come into view through the #1 jaw guide, then back if off slightly until it disappears
(see Figure 17) .
4. Slide the #1 jaw into the #1 jaw guide and hold it firmly against the scroll gear threads, then rotate the chuck key
clockwise approximately one turn until the lead thread engages with the jaw.
Note: Tug on the jaw to make sure it is engaged with the scroll gear thread.
5. Repeat Steps 3-4 for jaws #2 and #3 in sequence.
6. Rotate the chuck key clockwise to bring the jaws together in the center of the chuck.
If installed correctly, the jaws will converge evenly at the center of the chuck.
If the jaws do not come together evenly, remove them, make sure the numbers of the jaws and the jaw guides
match, then properly re-install them.
Four-Jaw chuck
This section outlines basic operation safety related to using the 4-jaw chuck included with your lathe. use knowledge
of safety and common sense when applying the steps on how to use this chuck.
Select this chuck for low-speed lathe operations only. The 4-Jaw chuck uses independently adjustable jaws, meaning
each is adjusted by an individual worm gear. Non-cylindrical parts can be held and brought into the spindle centerline
for facing or boring. The other benefit is that the majority of a workpieces can be positioned out of the spindle
rotation axis if a bore or step needs to be cut into a workpiece on an outlying edge.
For the best grip possible on odd-shaped workpieces, one or more jaws can also be rotated 180° to grab more surface
Page 22 Instructions Manual for AL-346V (L555D) 01/09/2017