MachineryHouse AL-346V, Instruction Manual

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It is imperative to recognize however, the clutch is not a foolproof way of protecting your lathe from damage if an
operational mistake is made, a chuck-carriage crash occurs, or general machine overloading occur on a regular basis.
Never completely tighten the feed clutch set screw past its normal setting outlined in this procedure in an attempt to
completely eliminate clutch slip. Doing so will void the warranty, and can lead to a non-slipping clutch, resulting in
catastrophic gearbox damage.
To adjust the feed rod clutch:
Disconnect lathe from power!
—if the clutch slips during normal work loads and no problem exists with the feed system, the clutch spring pressure
must be increased. Tighten the two set screws 1⁄8-turn and recheck for slippage.
—if for any reason the clutch is bound up or locked, and does not slip when it should, the clutch spring pressure must
be reduced. Loosen the two set screws 1⁄8-turn, and recheck for slippage.
Tailstock lock
When pushed toward the spindle, the tailstock lock holds the tailstock firmly in place on the bedway with a locking
plate underneath. If the position of the lock lever is
difficult to use, the lever can be adjusted for the best
leverage.
To adjust the tailstock lock lever:
1. Unthread the stop pin (see Figure 69 ), and carefully
slide the tailstock from the lathe.
2. Tighten the hex nut 1⁄4-turn and reinstall the
tailstock.
3. Apply the tailstock lock lever and verify that the
tailstock is locked and the lever is where desired.
Readjust as necessary.
Figure 69
Gap insert removal
This lathe is equipped with a removable gap insert that will allow for turning large diameter workpieces. The gap was
seated, pre-loaded, and then ground for precise mating and alignment at the factory. Removing the gap can cause the
lathe insert to slightly spring out of shape. When reinstalled, there is no guarantee that original alignment and flush
mating will be the same. For this reason, removing the gap is considered a permanent alteration to the lathe, even if it
is later reinstalled.
To remove the gap:
1. Disconnect lathe from power!
2. Loosen the preload set screw a few turns until it no
longer contacts the headstock (
see Figure 70 ).
3. Tighten the dowel-pin jack nut to draw the pins from
the gap.
4. Remove the four cap screws that secure the gap to the
bed.
5. Tap the outside of the gap piece with a dead blow
hammer to loosen it, and, with the help of another
person, remove the gap piece.
Figure 70
Page 43 Instructions Manual for AL-346V (L555D) 01/09/2017