Met with Paul and proceeded to perform a Ptu on a oil fired boiler. I replace the oil tank filter along with the pump strainer. I removed the gun assembly, cleaned it, replaced the nozzle and checked for specs. I reassembled the gun assembly, restored power and turned up the thermostat. I bathe oil lines and observed the boiler run, cycle and reach temperature. All is good. No issues to report at this time. Customer satisfied with service.