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Idiomas disponibles
Idiomas disponibles
DRULLING HOLES TO DEPTH
MAKE CERTAIN the drill press is disconnected from
the power source.
ADJUSTING
RETURN
SPRUNG
The ddH chuck wHU automatically
return sUowUy to its
upper position when the handUe is reUeased, The return
spring was propedy adjusted at the factory, However, to
adjust, if necessary:
Figure
13-1
C
MAKE CERTAIN the ddH press is disconnected from
the power source.
Figure
14-1
D
C
0
1.
Loosen both nuts (A) and (B). Make sure that the
spring housing (C) remains engaged with head
casting (D). See Figure 14-1.
1.
Unsert the ddH bit into the keyUess chuck and tighten.
2.
Hace the workpiece on the ddH press tame. Raise
the drHU press tame until the workpiece is 1/8-in
from the drill bit.
NOTE: Make sure the workpiece is secured to the table
properly.
3.
Turn the two lock nuts (A) on the thread depth scale
(B) until the bottom lock nut is aligned with the
dimension you want to drill on the scale (C).
4.
Tighten the top lock nut against the bottom nut.
This will keep the lock nuts from moving during
drilling operations.
5.
Drill a test hole to check the depth.
NOTE: For thruodrilling operations, make sure the table
center hole is aligned with the drill bit.
Figure
14-2
C
E
2O
2,
While firmly holding the spring housing (C) pull the
spring housing out and rotate it (counteroclockwise
to increase or clockwise to decrease the spring ten°
sion) until the boss (E) is engaged with the next
notch (F) on the spring housing,
See Figure 14-2,
IMPORTANT: Because the return spring is under tension,
it will want to unwind (clockwise),
Make sure you have
a firm hold of the spring housing before pulling it out,
3,
Turn the nut (B) until it contacts the spring housing
(C), then back the nut (B) out 1/4 turn from the
spring housing (C), Tighten the nut (A) against the
nut (B) to lock the nuts from turning,
See Figure
14-1 and 14-2.
IMPORTANT: The inside nut should not contact spring
housing when tightened.
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