hello darron, the ht lead is held into the pickup[ht terminal] by a screw.by
unscrewing the pickup from the armature backing plate there should be a spring with a screw up the centre and a plunger.be careful when unscrewing the pickup as they tend to become very brittle and break up easy. the ht lead is then pushed
through the pickup and the screw with spring is then screwed back into the ht
lead wire end.push the plunger back into the end of the spring and screw the ht
lead and pickup back into the backing plate. regards john