Bridgeport Milling Machine SERIES 1 CNC

Lubricate with few drops twice daily:

Way Surfaces and Lead Screws lubricated with Sunoco Waylube #1180 or equivalent

Milling Heads (Spindle Bearings) lubricated with S.A.E. 10 or 10W Light Oil (None on grease-packed heads)

Motor - None required. Motor greased for life of bearings

Machine - Lubricated with grease every six months as described on lubrication plate

Power Feed lubricated to sight level with Mobilube No. 46 S.A.E. 140

Shaping Attachment lubricated with Mobil 600W Oil or equivalent

Sign off on the machine lubrication

Quill in maximum up position and quill lock applied

Screw 'I', hub 'j', and key 'K' removed

Screws 'L' removed, allowing housing to rotate slowly releasing spring tension

End of spring lifted from pin on the pinion shaft

Housing 'M' rotated counter-clockwise from head casting

Spring removed from housing and replaced

Spring refitted to main housing casting. Housing turned clockwise until spring locates on pin in pinion shaft

Sign off on the balance spring replacement

Remove the clutch hub assembly 'Q'

Remove the bearing, drive discs and circlips from the hub assembly 'Q'

Replace the bearing and housing 'S'

Thread hub 'B' through the bearing and reassemble the discs, etc.

Sign off on the brake shoe replacement

Warning: This procedure requires trained personnel with PPE!

Upload a photo of the marked reference line on quill and nose cap 'S'

Lock screw 'T' and collet aligning screw 'U' removed

'U' replaced and checked for interference with the bottom of the guide slot

Nose cap 'S' replaced and checked for correct alignment with felt pen markings

Set screw 'R' replaced without overtightening

Warning: Ensure the machine is powered off before starting the procedure

Three screws 'F' removed and bearing housing 'G' withdrawn

Two screws and bushings 'H' removed

Four screws '|' and one screw 'J' removed

Four screws securing speed changer 'K' removed

Sign off on the drive belt replacement