Southbend South Bend EVS Toolroom SB1012 - Manual (Page 44)

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For Machines Mfg. Since 7/09 EVS Toolroom Lathes O P E R A T I O N
Adjustable Apron Stop
System
Use the adjustable apron stop collar (shown in
Figure 75) to set the location where the carriage
will be disengaged by the feedrod friction clutch.
When the adjustable apron stop contacts the stop
collar during a carriage feeding operation, the
clutch disengages the feedrod from the apron and
the carriage movement stops.
Figure 75. Adjustable apron stop and collar.
Apron Stop
Stop Collar
Apron
The adjustable apron stop system is designed
to stop the longitudinal carriage movement
at optional locations when the feedrod is
engaged.
When the leadscrew is engaged for threading
operations, the adjustable apron stop system
will not disengage the leadscrew—you must
move the half nut lever instead. Otherwise,
the carriage can crash into the chuck, or if it
contacts the stop, the leadscrew shear pin will
break.
Before doing any threading operations, make
sure to loosen the stop collar so it slides
freely on the feedrod.
Carriage Stop
The carriage stop on this lathe will NOT
automatically stop the carriage or disengage
the power feed! Failure to heed this notice
could result in the carriage crashing and
causing severe machine or property damage.
Use the carriage stop as a guide to help judge
when to stop the carriage movement.
Tools Needed Qty
Hex Wrench 8mm ................................................. 1
To adjust the carriage stop:
1. DISCONNECT LATHE FROM POWER!
2. Loosen the cap screws shown in Figure 76.
3. Use the carriage handwheel to position the
carriage/cutting tool at the stop point you
want to set (typically the maximum distance
the carriage can travel before there is a
crash).
4. Position the carriage stop so the rod is
firmly against the carriage, retighten the
cap screws loosened in Step 2, and use the
adjustment knob to fine tune the position of
the stop rod.
5. Move the carriage away from the stop rod,
then move it back against the stop rod and
verify that tooling will not make contact with
chuck, jaws, or other components (rotate the
chuck by hand to verify rotational clearance).
Figure 76. Carriage stop.
Stop Rod
Adjustment
Knob
Cap Screws