Harrison M250 - Lubrication; Running-in

6
Lubrication {Refer to Lubrication diagram)
Ensure
that the headstock, gearbox and apron are filled to the level of the releva' nt oil sight
windows -
and oil the cross -slide nut, dials and changewheel stud etc. through the appropriate
oil nipples using the oil gun provided.
Running-in
For optimum bearing life and performance it is recommended that high spindle speeds be
avoided during the
initial life of the machine.
Alternatively a running-in procedure should be adopted
as follows: ·
Make a
low feed rate selection and run the machine light for 3 hours at 260 rpm
then
for 1 hour at 550 rpm
then
for½ hour at 750 rpm