What was found
AFTER TAKE OFF FROM KTOL, WITH THE GEAR HANDLE SELECTED UP A LOUD BANGING NOISE STARTED WITH GEAR INDICATING UP AND LOCKED. THE NOISE MODERATELY CONTINUED WITH A VIBRATION FELT IN THE NOSE WHEEL WELL AREA. THE VIBRATION INCREASED WITH AN INCREASE IN AIRSPEED. THE CREW RETURNED TO KTOL AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED THE NOSE GEAR AREA AND FOUND THE RIGHT HAND FORWARD LINK NOT LATCHING. MAINTENANCE REPLACED THE RIGHT HAND LINK AND ADJUSTED THE LEFT HAND LINK. IAW DC-8 MM 32-22-1. THE OPERATIONAL CHECK WAS GOOD AND THE AIRCRAFT WAS RETURNED TO SERVICE.