Jeff Lloyd was a two-time winner at Doomben on Saturday but finished the day on the wrong side of stewards.
Lloyd, who was successful aboard Congo and Startsmeup, was suspended for six meetings for causing interference aboard Shekinaar to Skating On Ice in the home straight.
Stewards also suspended jockey Brad Stewart for nine meetings for careless riding aboard Show A Noee.
Apprentice Tegan Harrison is also out for seven meetings for careless riding aboard Lines Of Time.