TM 5-3895-374-24-2
8. MAINTENANCE
General
Only qualified service technicians should make mechanical or
electrical adjustments to the burner and/or associated control
equipment.
Preventative maintenance can usually be performed by building
maintenance personnel.
Always follow the information provided in the “Owner Operating
Instructions” on page 43. These should be conspicuously posted
in the burner room at the time of the initial burner installation and
start up.
Always turn the power supply off to the burner and close manual
fuel valves as appropriate for routine maintenance.
Make sure that combustion and ventilation fresh air sources to the
burner room remain clean and open.
Periodically check all electrical connections and make sure the
flame safeguard control chassis is firmly connected to its wiring
base.
Refer to manufacturer's product bulletins supplied with the burner
for maintenance on the flame safeguard control and other
components.
Weekly Checklist
1. Blow down the low water cutoff to remove rust and dirt. Be
sure that the burner cuts off with low water still showing in the
gauge glass.
2. Check boiler temperature or pressure readings.
3. Check any burner pressure gauge readings.
4. Check all burner linkage. Tighten as required.
5. Check condition of remote oil pump belts (if used). Replace as
required. Excessive noise and side wear on the belt indicates the
sheaves need realignment.
6. Visually observe the flame through the heat exchanger sight
port (if provided) for normal appearance.
Monthly Checklist
1. Lubricate electric motors in accordance with the motor
manufacturer's instructions. (Most burners have sealed
bearings.)
2. Check the flame scanner cell and scanner mounting pipe for
cleanliness.
Yearly Checklist (To be performed by a qualified service technician
It is suggested that the burner be checked by a qualified service
technician twice a year, but on an annual basis at minimum. The
technician should use, but is not limited to, the following
procedures.
1. Remove oil drawer assembly. Clean and check oil nozzle,
ignition electrodes and air diffuser assembly. Check blast tube
and fan housing and clean as required.
2. Check blower motor and blower wheel for cleanliness. Remove
and clean as necessary.
3. Remove, inspect and clean gas pilot assembly.
4. Inspect combustion chamber and make repairs as necessary.
5. Run burner through complete operational sequence and check
for correct operation of all interlocks, operating and limit controls,
fuel shutoff valves and other components as appropriate.
6. Conduct maintenance and service procedures as directed by
the flame safeguard manufacturer's product bulletin that was
shipped with the burner.
7. Conduct complete combustion analysis tests on burner and
heat exchanger. Clean as necessary and adjust for efficient
operation at all fuel inputs.
(page 3 - 992)
