Engaging The Fine Feed Wheel; Return Spring Adjustment; Before Operation; After Operation - Promac JMDT-764016X Manual

Turn the knob of depth stop(F, Fig 3) to
move to the desired position.

7.4 Engaging the Fine Feed Wheel

To activate the fine feed hand wheel
tighten the engagement knob (I, Fig 3).

7.5 Return Spring Adjustment

The return spring is adjusted at the
factory and should not need further
adjustment. If adjustment is necessary:
Loosen knob (X, Fig. 5) approximately
6mm.
Do not remove the spring cover (Y).
Fig 5
Firmly hold the spring cover (Y).
Pull out the cover and rotate until the
pin (Z) 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 knob (X).

7.6 Before Operation

Prepare oil gun with coolant or cutting
oil.
In order to keep the accurate precision,
the table must be free form dust and oil
deposites.
Check to see that the tools are correctly
set and the workpiece is set firmly.
Be sure the speed is not set to fast.
Be sure everthing is ready before use

7.7 After Operation

Turn off the electric switch.
Turn down the tools.
Clean the machine and coat it with
lubricant.
Cover the machine with cloth to keep
out the dust.

7.8 Adjustment of Head

To raise and lower the head, loosen the
two nuts (V, Fig 6) located on the right
side of the Z-slide.
Fig 6
Use the crank (Fig 7) to raise and lower
the head.
When the desired height is reached
tighten the 2 nuts to avoid vibration.
Fig 7
The head may be rotated 360º around
the column.
Loosen the 2 nuts (V, Fig 6).
Adjust the head, then well tighten the
nuts to avoid movement under
machining loads.
Fig 8
The head may be tilted left/right.
Loosen 3 nuts (U, Fig 8).
Tilt the head to the degrees you wish on
the scale, then well tighten the 3 nuts to
avoid vibration.

7.9 Preparing for Drilling.

Loosen the quill lock (N, Fig 4, Fig 9).
Loosen the knob (I) to make loose the
taper clutch of worm gear, to disengage
the fine feed (H).
Set the positive depth stop (F) to the
desired drilling depth.
Fig 9

7.10 Preparing for Milling

Adjust the positive depth stop (F, Fig 9)
to highest point position.
Turn tight of the knob (I) to engage the
taper clutch, to engage the fine feed (H).
Turn the fine feed hand wheel (H) to
adjust the desired machining height.
Tighten the quill lock (N) to avoid
vibration.

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:

Weekly apply oil:
DIN 51502 CG ISO VG68
(e.g. BP Maccurat 68, Castrol Magna BD
68, Mobil Vectra 2)
- X-axis lead screw