XL-3500/ t/ i/3510/3520 FAQs & Troubleshooting XL-3500/ t/ i/3510/3520 Not your product? Sort by Updated Date Popularity 3 Results 1. 10/21/2015 Combination of fabric, thread and needle 2. 11/08/2011 Where do I put the oil in my machine? 3. 04/07/2009 Place a spool of thread on a spool pin. One Point Advice FAQs & Troubleshooting