Return Spring Adjustment; Maintenance And Inspection; Trouble Shooting; Protection De L'environnement - Jet JDP-15M Operating Instructions Manual

7.5 Return Spring Adjustment

Disconnect the machine from the
power source (unplug).
The return spring is adjusted at the
factory and should not need further
adjustment. If adjustment is
necessary:
Unplug the machine from the power
source.
Loosen two lock nuts (A, Fig. 14)
approximately 6mm.
Fig 14
Firmly hold the coil spring cover (B,
Fig. 14).
Pull out the cover and rotate until the
pin (C, Fig. 14) on the return spring
plate engages the next notch in the
coil spring cover. Turn the cover
clockwise to decrease tension and
counter-clockwise to increase tension.
Tighten two lock nuts (A, Fig. 14). Do
not over-tighten. Nuts should not
contact the housing when tight.

8. Maintenance and inspection

General notes:
Maintenance, cleaning and repair
work may only be carried out after
the machine is protected against
accidental starting by pulling the
mains plug.
Lubrication:
Periodically lubricate the gear and the
rack, the table elevation mechanism,
the drive splines (grooves) in the
spindle, and the teeth of the quill
gently with grease.
Clean the machine regularly.
Defective safety devices must be
replaced immediately.
Repair and maintenance work on the
electrical system may only be carried
out by a qualified electrician.

9. Trouble shooting

Motor doesn't start
*No electricity-
check mains and fuse.
*Defective switch, motor or cord-
consult an electrician.
Chuck will not stay on spindle
*Oil or grease on contact surfaces-
clean the tapered surfaces of chuck
and spindle.
Machine vibration
*Incorrect belt tension-
Adjust belt tension.
*Dry spindle quill-
lubricate spindle quill.
*Spindle pulley loose-
tighten retaining nut.
*Motor pulley loose-
Tighten set screw.
*dull drill bit-
resharpen drill bit.
Drill bit burns
*incorrect speed-
reduce speed.
*Chips clogged-
retract drill bit frequently
*dull drill bit-
resharpen drill bit.
*feeding too slow-
feed faster.
Drill leads off
*cutting lips or angle not equal-
resharpen drill bit correctly.
*drilled hole off center-
drill a pilot hole first.
*bent drill bit-
use a proper drill bit.
*drill bit not properly installed-
install drill bit correctly.

10. Protection de l'environnement

Protégez l'environnement !
Votre appareil comprend plusieurs
matières premières différentes et
recyclables. Pour éliminer l'appareil
usagé, veuillez l'apporter dans un
centre spécialisé de recyclage des
appareils électriques.

11. Available accessories

Refer to the JET-Pricelist.
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