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15
Depth Scale and Stop
Referring to Figure 15:
The Depth Scale and Stop are used in drilling
operations to set the depth of the drilled hole. The
depth scale is located on the front of the mill head.
The scale consists of a Micrometer Adjusting Nut (A),
Lock Nut (B), Quill Stop (C), Quill Stop Screw (D),
and Scale (E).
The Micrometer Adjusting Nut is set to the desired
dimension and locked in place using the Lock Nut.
The quill stop provides a positive stop for quill travel.
The graduations on the micrometer nut are in
0.001-inch increments. Adjustment of quill travel is
made by rotating the micrometer nut.
Figure 15
Power Feed Operation
The Feed Trip Adjustment sets the point at which the
quill will reset during Power Feed.
Referring to Figure 17:
Be sure that the Manual Fine
Feed Handwheel is removed.
Failure to comply may cause serious injury.
1. Loosen the Locknut (I).
2. With the Quill Feed Handle (J), advance the quill
to the point where the feed should stop.
3. Engage the Feed Trip Cam Lever (D) by pulling
away from head assembly.
4. Adjust Micrometer Adjusting Nut (H) against
Quill Stop (G).
5. Continue turning the Micrometer Adjusting Nut
(H) until the Feed Trip Cam Lever (D) trips.
6. Tighten the Locknut (I).
7. Ensure Quill Lock (K) is disengaged by rotating
counter-clockwise.
8. Start the spindle (A):
9. Select feed rate with the Variable Speed Control
Handwheel (E).
10. Set the Feed Rate Lever (B) to the feed rate
required for the tooling and material required.
11. Place the Quill Feed Engagement Lever (F) in
the Engaged position.
12. Select feed direction by setting the Feed
Direction Knob (C) position per the table:
Spindle Dir. Feed Dir. Knob Pos.
CW
Down In
Up Out
CCW
Down Out
Up In
Figure 16
13. Engage the Feed Trip Cam Lever (D) by pulling
away from head assembly.
Note: Due to variables in tool diameter, coatings,
coolant, and materials, no specific spindle speed or
feed rate recommendations are provided. Use
general shop manuals that have data applicable to
the milling and drilling operations being performed.
Or, contact the supplier of the tooling, coolant, and
material for specific recommendations.
IMPORTANT: The power feed can be used for drills
up to 3/8” in diameter (mild steel). Use manual feed
for drills larger than 3/8”.
The overload clutch is factory set
to hold up to 200 lbs. downfeed pressure on the
quill (accommodates drills up to 3/8”). Do not
attempt to adjust clutch pressure.
Figure 17