Wachs EP 424, User Manual

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Chapter 7, Service and Repair: Adjustments
E.H. Wachs Part No. 81-MAN-00, Rev. 0-0610 91
4.
With the 5/32” hex wrench, snug down the 2 set
screws on the ends. Slightly loosen the 2 set screws in
the middle.
5.
Turn the feed screw to move the male slide through
the full range of travel. Check for appropriate resis-
tance as you turn the screw, and loosen or tighten the 2
end screws as necessary to adjust the tightness.
6.
When the tension is equal along the full length of
travel, snug down the 2 middle set screws.
7.
Move the slide along the length of travel and adjust
the screws as necessary.
8.
Replace and tighten the jam screws on all 4 set screws.
Calibrating the Speed Prep Scale
If necessary, you can move the Speed Prep scale to make
sure the bevel angle settings are accurate. You should peri-
odically check the calibration, especially if your beveling
operation requires very accurate angles.
Use the following procedure to check the calibration and
adjust the scale. The procedure includes performing the
beveling operation on an actual workpiece, since the cali-
bration depends on a realistic cutting process. See the
detailed instructions in Chapter 5 for setting up and per-
forming a single-point bevel.
1.
Configure the EP 424 for single-point operation.
2.
Mount the machine on a pipe or sample workpiece
suitable for single-point beveling.
3.
Install a single-point tool in the slide and configure the
machine to start the beveling operation.
4.
Attach power to the drive motor and operate the
machine until it starts to cut the workpiece.
5.
Turn off the drive motor.
6.
Engage one trip on the trip assembly.
7.
Loosen the Speed Prep knob and set it so that the
gauge is at 30°. Tighten the knob to lock it in place.