To Replace Motor (Planar old style)
It is important when working on the underside of the turntable that:
a) It is disconnected from the mains.
b) It is fully supported so that no pressure is placed on the tonearm or hub bearing. An old Rega turntable lid is ideal for this.
c) The hub is taped to the base.
Removing Old Motor
1. Remove motor cover plate.
2. Remove screw in centre of PCB.
3. Unsolder the two switch wires and two mains wires from PCB and turn plinth over.
4. Support motor in one hand and undo both screws either side of motor pulley.
NOTE: When returning a faulty motor to Rega, please leave PCB attached as this will assist us to make a full check.
Keep fingers away from motor bearings as this can cause contamination and loss of oil.
5. Position motor as illustrated in motor mounting diagram on page 5. A slight kink in the wires will ensure that they are held clear of the motor thus relieving their tendency to push on motor.
6. Solder switch and mains wires into place on PCB and screw PCB onto mounting block making sure that the PCB does not touch the plinth, (to ensure that no stress is caused to PCB or the laminate). Should the PCB mounting block become detached it can be replaced using hot melt glue or contact adhesive.
7. Whilst supporting the motor with one hand, turn the plinth over and fit both mounting screws so that only a small amount of thread is taken up and the motor mounting plate is still loose.
8. Position pulley slightly to the rear of the hole in the plinth and central in the left right plane as illustrated.
To Replace Motor
9. With one finger, push the pulley down into the hole so that the top of the pulley is just below the surface of the plinth and is leaning slightly towards the rear of the turntable as in diagram A.
NOTE: On older motors the pulley has been set lower on the spindle and so may not need to be pushed down quite so far.
10. Whilst holding the pulley in this position, tighten both screws. The motor will then bounce into its correct position when finger pressure is released as in diagram B.
11. The drive belt can now be fitted. This will draw the pulley into its final position as shown in diagram C.