The following maintenance items, as appropriate to the specific boiler system, need to be considered for implementation on a regular basis (e.g., daily, weekly, monthly, semiannually, annually). A checklist of the items should be incorporated into a maintenance log with provisions for checking off the item for the appropriate period. A separate log sheet is suggested for each period. The log sheets can be filed in a loose-leaf binder, and should be retained as a permanent maintenance record.

The log sheets can be used as a handy check-off system when establishing a facility maintenance program. In all cases the equipment manufacturer's recommendations should be followed.

DAILY

• Blow down and test low water cutoffs of steam boilers (once per shift for high pressure)
• Blow down gage glasses (steam)
• Blow down make up feeder (low pressure steam)
• Blow down boiler (steam)
• Check boiler contraol linkage
• Check boiler and system for leaks
• Check burner flame

WEEKLY

• Check compressor (s) lubricating oil level (control and atomizing)
• Check flame signal strength for both pilot and main flame, and record readings
• Check flame failure cutoff and timing
• Check pilot and main flame fuel shutoff valve closing
• Check ignitor and burner operation
• Check level in chemical treatment tank

MONTHLY

• Check compressor (s) air filter, and clean or replace as required
• Check boiler water treatment test results received from treatment company, adjust treatment as required
• Lubricate motor and equipment bearings
• Test fan and air pressure interlocks
• Check main burner fuel safety shutoff valves for leakage
• Check low fire start interlock
• Check high pressure/temperature interlocks
• Test low water cutoffs (hot water)
• For oil -- test pressure and temperature interlocks
• For gas -- test high and low gas pressure interlocks
• Manually lift safety/safety relief valves and check operation

SEMIANNUALLY

• Inspect burner components
• Check flame failure system components
• Check piping and wiring of all interlocks and shutoff valves
• Recalibrate all indicating and recording gages and instruments
• Perform a slow drain test for low water cutoffs (steam)
• Check combustion control system
• For oil -- check atomizers and strainers
• Test boiler safety/safety relief valves in accordance with ASME Boiler and Pressure Vessel Code, Sections VI and VII

ANNUALLY

• Perform the SEMIANNUAL maintenance procedures
• Check all equipment coils and diaphragms
• Perform a pilot turndown test
• Recondition or replace low water cutoff
• For gas -- check drip leg and gas strainer
• Clean boiler firesides
• Drain boiler, open manholes and hand holes, and clean watersides
• Have boiler inspected by a commissioned inspector
• Clean burner and gans
• Replace gaskets
• Leak-test all fuel valves
• Test operation of all controls and safety devices
• Have fuel-burning system adjusted using combustion test instruments

AFTER EACH PERIOD

• Make a record of all maintenance and parts replacement in the maintenance log