TM 5-3895-374-24-2PREVENTIVEMAINTENANCESCHEDULEA schedule should be set up and followed for periodic inspection and maintenance; thefrequency of cleaning will depend on the conditions of operation. Listed below is therecommended schedule.Daily:1.Check the circulating oil pump pressure.2.Check the temperature; the thermometer on the rear of the firebox and the temperaturecontroller readings should be about the same.Monthly: (More often if necessary)1.Remove all dust from the control panel.2.Clean the lens and sight tube on the Mini-Peeper.3.Clean and adjust the gas pilot assembly.4.Clean and adjust the tailpiece assembly.5.Check and, if necessary, adjust the combustion mixture.6.Observe the fuel gauges for proper pressure.7.Observe the thermometer and the temperature controller for proper calibration.8.Simulate flame failure by disconnecting the Mini-Peeper while the burner is operating.Quarterly: (More often if necessary)1.Grease the pump and pump motor with a lithium base grease.2.Check the pump and motor coupling for alignment.3.Spray the damper motor linkage with WD-40 or equivalent. Do not use oil or grease onlinkage under dusty conditions.4.Replace the fuel oil filter cartridge.Yearly: (More often if necessary)1.Simulate low oil to be sure low oil cutout is functioning.2.turn the temperature controller to 450° F and observe that the highlimit switch cutout isfunctioning,3.Check the operating and indicating light bulbs.4.Have a sample of the heat transfer oil analyzed by the oil manufacturer’s laboratory.5.If any symptoms of coking or clogging up of the circulating system is apparent, contactyour nearest OAKITE dealer for his professional recommendations.6.Clean the HEAT TRAP between the expansion tank and the firebox.5/80 SR120Page 3 - 1177
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