Unibor COMMANDO 40
Original Instructions
Nov 2019
17
Magnetic base
Before every operation the magnetic base should be checked to make sure that the base is
flat and there is no damage present. An uneven magnet base will cause the magnet not to
hold as efficiently and may cause injury to the operator.
Adjustment of slide and bearing bracket alignment.
An essential requirement of the machine is that the slide can move in a smooth and
controlled manner, free of lateral movement and vibration.
This situation can be maintained by periodic adjustment of the slide and is accomplished in
the following manner:
1.
Place the machine in an upright position and, by means of the capstan, raise the slide
to its highest position. Clean the brass gib strips and apply a small amount of light
machine oil to the wear surfaces.
2.
Now lower the slide back to its lowest position. Bring the slide into the center of the
dovetail slide housing and loosen screws thus allowing free movement of the arbor
support bracket.
3.
Commencing with the middle screws, gently feed in all the screws until slight
resistance is encountered.
4.
Operate the slide up and down a few times to test the movement and make any
further necessary adjustments. Try to ensure that all the screws are exerting a
uniform pressure on the slide from top to bottom. A perfectly adjusted slide will
operate freely up and down without any sideways movement.
5.
Now raise the slide to its highest position. Slightly undo the arbor bearing bracket
and, using fingers only, tighten the screws.
6.
Place the machine on a steel plate, connect to power supply and switch on the
magnet. Start up the motor. If the arbor is incorrectly aligned, the arbor support
bracket will be seen to oscillate. Make any necessary further adjustments to the
bracket to ensure correct alignment of the spindle and finally tighten the screws
using a spanner. Lastly tighten the arbor bearing bracket.
Check machines grease.
The gearbox grease should be checked once a month to ensure all moving components are
covered to prevent wear. The grease should be changed at least once a year to ensure you
gain the best from your machine.
Check Armature of the machine.
This should be checked at least once a month to check that there are no visual signs of
damage to the body or to the commutator. Some signs of wear will be seen on the
commutator over a period but this is normal (this is the part that comes into contact with
the brushes) however, if there are any signs of abnormal damage the part should be
replaced.
