Clarke Metalworker CDP350V, Operating & Maintenance Instructions, Page: 18 / 36

18
SPINDLE RETURN SPRING (FIG 16)
The spindle is equipped with an auto-return mechanism comprising a spring
and a notched housing. The spring tension was set at the factory and should
not be adjusted unless absolutely necessary.
1. Unplug the drill press.
2. Place a screwdriver into the loop
(1) to hold the spring in place.
3. Loosen the two housing nuts (2)
approximately 1/4" (6 mm). Do not
remove the nuts from the
threaded shaft. Do not allow the
spring or spring housing to slip out
of control.
4. While firmly holding the spring
housing (3), carefully pull the
spring housing out until it clears
the raised notch (4).
5. Turn the housing so that the next notch (5) is engaged with the raised
notch (4).
• To increase the spindle return tension, turn the spring housing
counter-clockwise.
• To decrease the tension, turn the spring housing clockwise.
6. Tighten the two housing nuts but not excessively. If the nuts are tightened
too much, the movement of the spindle and feed handles will become
sluggish.
ANGULAR "PLAY" OF THE SPINDLE (FIG 17)
Move the spindle to the lowest
downward position and hold in
place. Try to make the spindle
revolve around its axis while also
moving it with a side motion. If there
is too much play, proceed as
follows:
1. Loosen the locknut (1).
2. Without obstructing the upward
and downward motion of the
spindle, turn the screw (2)
clockwise to eliminate the play.
Note: A little play is normal.
3. Tighten the locknut (1).