76 iw 51 nc help

76 iw cant get the zepplin to flip the lever, the other one 51 nc i think i have everything right but the light will not go on please help

Level 76 iw
Place weight above candles and attach rope from it to red lever. Move weight around so that when it falls it only extinguishes right candle (balloon needs to stay intact to hold bucket in place). Attach bucket to balloon so that it collects top ball preventing it from hitting switch (right switch needs to remain in up position). When dynamite explodes it will cause lower ball to operate left switch. Left switch (only) in down position will turn on light (right switch must remain up). Good Luck