Form I-RA/D 140/235 (Version A), Mfg No. 110318 Rev 4, Page 25
Every Six months:
• Clean the oil strainer at the burner.
• Clean the foot valve screen.
• Replace the air filter.
• Clean the end cone.
• Replace the oil nozzle.
• Clean the external surfaces of the combustion chamber/heat
exchanger.
• Clean the fan or blower.
• Check for oil leaks.
• Check blower belt for tension and wear.
• Inspect the electrodes
• Clean the pre-heater.
NOTE:
A maintenance record chart is provided in the Appendix.
Replace the Supply Line Filter and
Clean Internal Pump Screen
Replacing the filter and cleaning the pump screen requires breaking
the suction line. The suction line is the portion of the supply line from
the tank to the remote pump. If air leaks develop in the suction line,
the heater will not operate properly.
Follow all instructions, including “recharging the Suction Line,” (page
26) to avoid creating an air leak.
Replacing the Supply Line Filter
1. Remove the old filter canister.
• Carefully unscrew and remove the filter canister. Dispose of
properly.
2. Replace the filter canister.
• Attach a replacement filter canister, P/N 176535.
Maintenance
Procedures
Supply Line Filter with
Replacement Canister
Cleaning the Internal Pump Screen
1. Check the Screen
• Disconnect the inlet oil line from the pump.
• Using a flashlight, look into the pump inlet.
a) If the portion of screen visible at the inlet appears to be
clogged, go to Step 2.
b) If the screen appears unclogged, reconnect the inlet line
making sure that the connection is tight. Do not remove
