I have a 1973 international bulldozer TD - 15 during use when attempting to push. TD - 15 1973 with a DT 466 engine.

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Check the oil level and condition for any signs of discoloration in the oil or burnt smell as well as any metal or debris in the section screen and filters that would flag a potential internal mechanical failure occurring that would require disassembly for further inspection for repair or rebuild. If this is all clean, have your pressures tested and confirmed whether or not they are within factory specifications. I would also check for potential slippage within your steering clutches and brake assemblies. It's a pleasure to help anyway I can.

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