Adding an extra say 4 quart will help. I never saw this tractor as it was east of us and sold by another dealer, but it had a Lube finder set up off a semi as they also did trucking. The extra 3 gallon kept the oil a lot cooler. On your mower. It is a half breed. It is the Old Cockshutt 315 mower with an Oliver cutter bar. We sold the Farmhand line and so 90% of the rakes we sod were wheel rakes. My other computer is in the shop so this is your only address I have. If you put a lube finder on you will not neeed a cooler pump. The balers are good balers. Ask Ian C about parts as Heston is in there somewhere on the later balers.