Adjusting Tailstock; Maintenance And Inspection; Adjusting Bed Clamping; Changing Belt And Bearings - Powermatic 3520B Mode D'emploi

7.6 Adjusting tailstock

Turn the hand wheel (P, Fig 32) clockwise to move tailstock
spindle forward. Lock tailstock spindle with the indexable
knob (O).
The handle (Q) locks the tailstock in position on the bed.
The live centre can be ejected by turning the hand wheel
counter-clockwise.
To screw off the cone (R, Fig 33) the life centre must be
locked against rotation with the supplied pin (S).
Fig 31
Fig 32
Fig 33
The centring pin can be knocked out to allow deep hole
drilling operations.

8. Maintenance and inspection

General notes:
Maintenance, cleaning and repair work may only be
carried out after the machine is protected against
accidental starting by pulling the mains plug.
Clean the machine regularly.
Remove any foreign objects from the heat sinks of AC-drive
(Do not obstruct the air flow).
Inspect the proper function of the dust collection daily.
Defective safety devices must be replaces immediately.
Repair and maintenance work on the electrical system may
only be carried out by a qualified electrician.
(Warning: Wait five minutes for DC-bus capacitors
discharge before accessing the AC drive unit!)

8.1 Adjusting bed clamping

If adjustment is needed, remove the stud (A, Fig 34).
Slide the headstock, tailstock or tool rest to the edge of the
bed and slightly turn the hex nut (B).
Test the handle to make sure it securely locks.

8.2 Changing belt and bearings

Changing belt and bearings can be a difficult task. By
chance remove headstock and take into a repair station
for servicing.
Disconnect the machine from the power source.
Open the door and remove the belt from the lower pulley.
Loosen two set screws (A, Fig 35) and unscrew the hand
wheel.
Fig 34