Harrison M250 - Starting the Machine; Stopping the Machine

Starting the Machine
1. Ensure that lubrication has been carried out in accordance with the Lubrication diagram.
2. Check that the feed engage _ lever (22) and thread - cutting lever (20) are in the disengaged
positions and that the changewheel cover is firmly secured in place.
3. Select • Feed Axis - i.e. cross or longitudinal by means of the apron push -pull
knob (21) .
Select - Direct i on of feed - by means of the headstock lower selector (8)
Select • Feed Rate • by referring to the charts on the headstock and selecting (in the
sequence listed) the appropriate positions on the gearbox selector s (6)
and (7). (Engagement of the feed gears may be assisted by turning the
main spindle)
Select ** Spindle speed by turning the speed range selector dial (10) to present the
appropriate range i.e. A B or C, then turn the speed selector lever (9) to
po i nt to the required speed from the chart .
(Engagement of the drive gears may be assisted by manually turning the spindle)
4. Switch on the electrical supply at the mains isolator (1 ) whi ch is the red knob at th e L.H . e nd
of control station .
5. Select direction of spindle rotation by means of forward/reverse switch (2).
6.
Start the spindle by means of start push - button ( 5).
7. Start and stop the feed motion as required by means of the feed engage lever (22)
Stopping the Machine
The machine may be stopped by the Emergency Stop pushbutton (4).
Operational Notes
FACEPLATES
COARSE SCREWCUTTING /
FEED RANGE 'J'
NOTES
NOTE MAXIMUM SPEEDS :-
1500 rpm for 260 mm (12") dia .
SHOULD NOT BE USED WITH
SPINDLE SPEEDS ABOVE 750 RPM.
• • See Installation inst ructions (RUNNING - IN) if starting the mach ine for the firs t time .
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