Minelab F3 Service Manual page 25

Extreme care must be taken when removing the wiring loom plug from the
electronics pack. Do Not use excessive force as this may cause damage to the

Undo and remove the upper two screws (Part 7) that secure the electronics
pack to the upper shaft.

Slide the electronics pack back along the upper shaft (avoid snagging the wiring
loom) approximately 10cms (4ins) exposing the coil cable (Part 5).

Using the retainer plug (Part 4), if fitted, unscrew the coil plug (Part 5).

Remove the electronics pack from the upper shaft.
If fitted, the retainer plug will stop the coil cable from being retracted down the shafts
once the coil plug is unscrewed from the electronics pack. If a retainer plug is not
fitted connect the coil cable pull through from the F3 Tool Kit to secure the coil cable.
Alternatively, the cable can be secured by tying the plug to a length of string.
b. To Connect an Electronics Pack:

Slide the electronics pack on to the upper shaft until the coil socket is within
10cm (4ins) of the end of the upper shaft.

Apply a small amount of silicon sealant to the coil socket thread.

If necessary, remove coil pull through from the coil plug ensuring that the coil
cable does not untwist.

Make sure the coil cable slides in and out of the shafts without any snagging or
obstruction.

Reconnect the coil plug (Part 5) to the electronics pack using the coil plug
retainer (Part 4) or fingers. Do Not Over Tighten.

Remove excess sealant.
connector on the printed circuit board.
Coil Connector
Figure 14: Unscrew coil connector
NOTE
Page 25
F3 Service Manual