WEN 4210 10 inch Drill Press with Cross Hair Laser ver.2014 - Manual (Page 18)

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Assembly and adjustments (continued)
Drilling depth (Fig. 22)
1. To stop the drill at a specific depth for consistent and
repetitive drilling, loosen the depth scale lock (1) located
on the depth scale hub (2).
2. Turn the hub until the pointer (3) is aligned to the desired
depth on the scale.
3. Tighten the depth scale lock (1). The chuck will stop after
traveling downward to the distance selected.
Note: All the necessary adjustments for the working of your
drill press have been done at the factory. Please do not
modify them. However, because of normal wear and tear of
your tool, some readjustments might be necessary.
Spindle return spring (Fig. 23)
The spindle is equipped with an auto-return mechanism.
The main components are a spring and a notched housing.
The spring was properly adjusted at the factory and
should not be readjusted unless absolutely necessary. If it
needs to be adjusted, proceed as follows:
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.
4. While firmly holding the spring housing (3), carefully pull it out until it clears the raised notch
(4). Turn it until the next notch (5) is engaged with the raised notch (to increase the tension,
turn it counterclockwise; to decrease the tension, turn it clockwise). Tighten the two housing
nuts.
IMPORTANT! Do not overtighten the two nuts. If the nuts are tightened too much, the movement
of the spindle and feed handles will be sluggish.