2003 Polaris Deep Snow Snowmobiles Service Manual, Page 233Get this manual
BODY AND STEERING Seat Cover Replacement
1Remove seat assembly as outlined on page 6.182Remove seat and seat covering to be replacedCarefully remove staples by loosening with small flat blade screwdriverPull each staple straight out with pliers
3On some models, it will be necessary to drill out the rivets holding the strap bucklesReach inside the tool box and rotate the "D" ring buckle which secures the center hold down strapPush the "D" ring through the slot in the tool box and carefully pull it through the foam cushionReassembly Note: For ease of assembly, hook wire to the center strapThis will allow you to pull the center strap back through the foam and into the storage box