DRILLING HOLES
TO DEPTH
Where a number of holes are to be drilled to exactly the
same depth, a depth stop is provided in the pinion shaft
housing and is used as follows:
1.
Loosen lock screw (A) Fig. 23, and rotate housing
(B) until the pointer (C) lines up with the desired
depth indicated on scale (D). Then tighten lock
screw (A).
2.
All holes will then be drilled to the exact depth as
indicated on scale (D) Fig. 23. NOTE: Scale (D) is
calibrated in both inches and metric.
ADJUSTING SPINDLE
RETURN SPRING
For the purpose of automatically returning the spindle
upward after a hole has been drilled, a spindle return
spring is provided in the spring housing (A) Fig. 24. This
spring has been properly adjusted at the factory and
should not be disturbed unless absolutely necessary. To
adjust the return spring, proceed as follows:
1.
DISCONNECT THE DRILL PRESS FROM THE
POWER SOURCE.
2.
Loosen the two nuts (B) Fig. 24, approximately 1/4".
Do not remove nuts (B) from shaft (C).
3.
While firmly holding spring housing (A) Fig. 25, pull
out housing and rotate it until the boss (D) is engaged
with the next notch on the housing. Turn the housing
counterclockwise to increase and clockwise to
decrease spring tension. Then tighten the two nuts
(B) to hold the housing in place.
IMPORTANT:
Inside nut (B) should not contact spring
housing (A) when tight.
Fig. 23
Fig. 24
Fig. 25
