- 15 -
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 Fig.21. 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
supply.
2. Loosen the two nuts approximately
¹⁄₄
".
Do not remove nuts from shaft Fig.21.
SPINDLE RETURN SPRING ADJUSTMENT
Fig.21.
Fig.22.
Fig.23.
DEPTH SETTING
A
B
A
B
C
D
3. While firmly holding spring housing Fig.22.,
pull out housing and rotate it until the boss
is engaged with the next notch in the housing.
Turn the housing anticlockwise to increase and
clockwise to decrease spring tension. Then
tighten the two nuts Fig.22. to hold the
housing in place.
IMPORTANT:
Nuts Fig.22. should not contact spring housing
when tight.
B
A
DRILLING HOLES TO DEPTH
Where holes are to be drilled to exactly the same
depth, the stop nuts on the threaded stop rod are
used as follows:
1. Mark the depth of the hole on the side of the
workpiece. Lower the spindle until the drill
bit is even with the mark, as shown in Fig.23.
Lower stop nut down to contact the depth
stop on the side of the head. Return the
spindle to the up position and tighten the
upper stop nut against the lower stop nut .
A
A
B
C
A
B
C
A
D
B
A
B
C
B
Summary of Contents for D13/5A
Page 19: ...19 NOTES...
