11
Return Spring Adjustment
The return spring is adjusted at the factory and should
not need adjustment. If it does, follow these steps:
1. Disconnect drill press from power source.
2. Loosen two nuts (53, 106) approximately 1/4".
Do not remove.
3. Firmly hold coil spring cover (49A); pull out
and rotate until pin on return spring plate (52)
engages with next notch in coil spring cover (49A).
Turn counterclockwise to increase tension and
clockwise to decrease tension.
4. Tighten two nuts (53, 106) to hold in place - do not
overtighten. Nuts should not contact housing
when tight.
Basic Operational Hints
1. Always use a back-up piece of material (wood).
This protects the bit and the table. It also prevents
splintering of the workpiece.
2. Place material in such a way as to come into
contact with the left side of the column. This will
prevent the material from spinning.
WARNING: If workpiece is not long enough, use a
clamp or drill press vise that is securely fastened
into the table. Failure to do so may cause
serious injury.
3. Feed bit into material with only enough force to
allow drill bit to work. Feeding too slowly may
cause burning of workpiece. Feeding too quickly
may cause the motor to stop and/or the belts to
slip. It may also cause the workpiece to break free
from its clamps or the drill bit to break.
4. Generally speaking, the smaller the drill bit, the
greater the RPM required. Wood will require higher
speeds than metal. Metal is usually drilled at
slow speeds.
5. In dusty environments, frequently blow out any
dust that accumulates inside the motor.
Lubrication
All motor ball bearings are permanently lubricated.
No further lubrication is necessary.
Periodically lubricate the splines (grooves) in the
spindle (58) and teeth of the quill (56).
Periodically apply a light coating of grease to the
column and rack (table height adjuster).
49A
52
53 & 106
Содержание JET JDP Series
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