Replacing The Handgrip; Replacing The Coil - Minelab F1A4 Service Manual

3.3

REPLACING THE HANDGRIP

1. Remove the hand strap from the handle
(refer to the 'F1A4 Operations Manual if required).
2. Cut the foam hand-grip down its length
and remove it.
3. Using water, wet the handle and the foam and
slide the foam hand-grip onto the handle.
4. Refit the hand strap.
3.4

REPLACING THE COIL

3.4.1 To Remove a Coil:
1. Carefully remove the dust cap from the Coil Plug.
2. Remove the Upper Camlock Assembly (Section 3.1) and open the Lower
Camlock. (This will allow the Coil Connector to easily pass through the
Upper Shaft.)
3. Withdraw the cable through the Upper Shaft.
4. Starting from the upper end, pull the cable from the channel in the Lower
Shaft and then from the cable clamp in the yoke.
5. Remove the black wing-nut and bolt from the Coil-to-Shaft joint.
6. Remove the friction washers from the Coil.
7. Remove the Skid Plate. The Skid plate can be levered from the Coil with a
flat bladed screwdriver, taking care not to damage the Coil or the Skid Plate.
8. The coil is now free from the Lower Shaft.
3.4.2 To Refit a Coil:
1. Fit the friction washers to the coil. Ensure that the four legs on each washer
are pushed fully into their respective holes.
2. Refit the Skid Plate.
3. Hold the new Coil on a flat surface, position the Lower Shaft correctly around
the coil top, insert the nylon bolt and attach the nut. Tighten the nut so that
the coil can still pivot, but is not loose.
4. Dampen the cable and cable groove with water.
5. Starting at the lower end of the cable, and with the Shaft at 90° to the Coil
face, use your thumbs to press the cable into the cable clamp in the black
plastic yoke on the Lower Shaft.
6. With your thumbs, press the cable into the cable groove in the Lower Shaft,
ensuring that there is some free play in the cable between the Coil and the
cable clamp. (The Shaft should still be at 90deg to the coil).
7. Slide the Connector and cable through the Upper Shaft, starting from the
Lower end, (the end with the Camlock still in position).
8. Draw the cable up through the Upper Shaft.
Note: The cable is to be drawn through, rather than trying to push it through.
9. Replace the Upper Camlock Assembly (Section 3.1).
10. Refit the dust cap to the Coil plug. (The dust cap should be moistened with
a small amount of water to facilitate this step, ensure that no moisture enters
the coil plug.)
F1A4 Field Service Manual – Level 1 and Level 2 Maintenance
Page 15