Queen bee -- "According to the contract they are to be on a K route how is that affected when the k route goes to a J during seasonals?"
-- Step 4 ( R-95 ) sort of addresses that situation - in part:
If the PTF is assigned a K route with a non-Saturday relief day that changes classification to a J route, the route's relief day will be changed to Saturday and will be removed from the PTF's assignment.
-- Step 4 ( P-120 ) also might be used - in part:
If the number of K routes decreases in the office, and the office no longer has two ( 2 ) K route assignments for a PTF position, manglement will adjust routes upward as needed to create a K route(s) assignment for the PTF, PROVIDED there is territory available from overburdened or auxiliary routes.
-- Step 4 ( R-31 ) -- in part: a part-time flexible ( PTF ) position will be established, PROVIDED the PTF will be assigned at least two ( 2 ) K routes primary leave replacement assignments.
-- Article 30.2.A.3 -- The establishment of a part-time flexible rural carrier is at the discretion of the Employer [ as in the USPS giveth and the USPS taketh away ]. However, management is required to establish such an assignment when hiring efforts have been unsuccessful following the regular carrier's request, PROVIDED the part-time flexible rural carrier will be assigned two ( 2 ) K routes.
-- The PTF position will cease is there is not 2 K routes in the office.
-- In view of the above, I'd still contact your Assistant District Representative.