Slide Adjustments; Weekly Lubrication - Jet JMD-2 Gebrauchsanleitung

7.1 Arbour replacement
Remove the draw bar cover (M, Fig
1).
Loosen the draw bar with a wrench.
Loosen the drawbar 2 to max 3 full
turns.
Tap the drawbar head with a rubber
mallet to dislodge the tool taper.
7.2 Engaging the Fine Feed Wheel
To activate the fine feed hand wheel
(L, Fig 1) tighten the engagement
knob (C).
7.3 Tilting the milling head
To tilt the head loosen the lock nuts
(V, Fig 5).
Fig 5
Pull out the head 90° index pin (X).
The head can be tilted 45° to the left
and 30° to the right.
8. Maintenance and inspection
General notes:
Maintenance, cleaning and repair
work may only be carried out after
the machine is protected against
accidental starting.
Push the emergency stop button
and disconnect from the power
source!
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.

8.1 Weekly Lubrication

DIN 51502 CG ISO VG68
(e.g. BP Maccurat 68, Castrol Magna
BD 68, Mobil Vectra 2)
- X/Y/Z-axis lead screw
Apply oil on entire length.
- X/Y/Z-axis hand wheels
Lubricate ball oilers.
- X/Y/Z-axis ways
Lubricate ways on entire length.
- Spindle quill
Apply oil on entire length.

8.2 Slide adjustments

The X/Y/Z slide way gibs are
adjustable with grub screws.
If adjustment is needed tighten screw
slightly.
Try and repeat until slides move freely
without play.
8.3 Lead screw nut adjustment
The X/Y lead screws are fitted with an
adjustable (slotted) lead screw nut.
Fig 6
Tighten the screws (173) to remove
the play.
9. Trouble shooting
Motor doesn't start
*No electricity-
check mains and fuse.
*Defective switch, motor or cord-
consult an electrician.
Machine vibration
*Stand on uneven floor-
adjust stand for even support.
*Tool deflection-
reduce tool length.
*Slide backlash-
adjust slide gibs.
7
*Slides running dry-
lubricate with oil.
*Dry spindle quill-
lubricate spindle quill.
*Dull tool tip-
resharpen or change tool.
*Chip load too high-
reduce depth of cut or feed-
*Table lead screw nut has play-
tighten adjusting screw.
Tool tip burns
*Cutting speed too high-
reduce spindle speed.
*Dull tool tip-
resharpen tool tip.
Drill leads off
*cutting lips or angle not equal-
resharpen drill bit correctly.
*drilled hole off centre-
drill a pilot hole first.
*bent drill bit-
use a proper drill bit.
*drill bit not properly installed-
install drill bit correctly.
10. Environmental protection
Protect the environment.
Your appliance contains valuable
materials which can be recovered or
recycled. Please leave it at a
specialized institution.
11. Available accessories
Refer to the Jet-Pricelist for various
accessories.