What was found
ON TAKEOFF, AFTER RAISING GEAR HANDLE, NOSE SHOWED RED WITH RED HASHES, MAINS WHITE. AFTER RUNNING CHECKLIST, GEAR SHOWED ALL GREEN. WHEN LOWERING GEAR, HANDLE DRAGGED, & HARD TO LOWER. CYCLED LANDING GEAR FOUR TIMES, CHECKED AND CLEAN WEIGHT ON WHEELS CONNECTOR AND CHECK & CLEANED SQUAT SWITCH CONNECTOR. LUBRICATED NLG UPLOCK, OPERATED NORMAL, ALL WORK DONE IAW MM 32-00.