18
14. Feed Shaft Spring Tension
The feed shaft return spring is adjusted at the factory; however, during the life of the drill press you may want to
adjust the feed shaft return spring so the feed shaft return pressure suits your operating needs.
To adjust the feed shaft spring tension:
1.
UNPLUG THE DRIL PRESS !
2. Wipe off any oil on the spring lock cover so it does not slip in your fingers when you hold the cover from
spinning (see Figure 28).
While holding the spring lock cover against the side of the head stock so the cover stays splined with the
locking lug; loosen the jam nut and loosen the cover nut approximately 14" (see Figure 30).
Put on heavy leather gloves to protect your hands from possible lacerations if the spring uncoils during the
next step.
Pull the cover outward just enough to disengage the spring-cover lock slot from the locking lug. Note: It is
important to keep a good grip during this step. Letting go of the cover will cause the spring to rapidly uncoil.
Rotate the cover counterclockwise to increase spring tension, or let the cover slowly unwind in the clockwise
direction to reduce spring tension.
Engage the next available spring-cover lock slot with the locking lug and hold the spring lock cover tightly
against the side of the headstock.
Snug the cover nut against the spring cover just until the nut stops, and then back off the nut approximately
13 turn, or just enough so there is no binding at complete spindle travel.
Hold the cover nut and tighten the jam nut against the cover nut.
Figure
27
Figure 29
Figure 30
Figure 28
Lock Nut
Spring Lock
Cover
Spring Cover
Lock Slot
Screw
Wrench
Size 19mm
Summary of Contents for 378VTE
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