The 2021 edition of the Keystone Owner's Manual, on page 31, details specific towing/hauling limitations for the "factory installed receiver"... Maximum trailer weight is 3000 pounds with a maximum tongue weight of 300 pounds.
Your 2017 trailer may not have the same receiver weight limits, so verify with the decal attached to the receiver (or on the rear bumper supports) to be sure.
You can download the 2021 edition (or previous owner's manuals) here:
https://www.keystonerv.com/owners/owners-manuals/