Rotabroach ELEMENT 50 AUTO Manual page 26

Element 50 AUTO Manual
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
of time 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.
Original Instructions
26
June 2022