C-26_Mechanical_PM_Guide_(1).pdf

PREVENTIVE MAINTENANCE GUIDE

HEADQUARTERS COMPLEX

DEFENSE LOGISTICS AGENCY Page 1 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

ELE/MTR/A Electric Motor Annual PM MECH01 365 12

Procedures

***PREVENTIVE MAINTENANCE***1

Schedule outage if necessary.2

Review manufacturer's instructions.3

De-energize, lock out and tag electrical circuit serving motor, when applicable.4

Check ventilation ports for soil accumulation, clean if necessary.5

Clean exterior of motor surfaces of soil accumulation. Lubricate bearings according to horsepower ratings:6

1 to 7.5 hp : every 4 years7 over 7.5 hp and less than 50 hp : yearly8 over 50 hp : semi-annually9

Remove filler and drain plugs.10

Free drain hole of any hard grease.11

Add grease - use good grade lithium base grease unless otherwise noted.12

Check motor windings for accumulation of soil. Blow out with air if required.13

Check hold-down bolts and grounding straps for tightness.14

Remove tag and lock, energize, and return to service.15

***PREDICTIVE MAINTENANCE***16

The following electrical tests are to be done on motors rated a 10 hp and greater, and is to be accomplished at the motor control panel and should be completely non-destructive.

Testing shall be done to establish the present operating parameters of the wiring and the motors for the following aspects:18

Leaks to ground with results expected to be greater than 5 megaohms in each phase; per IEEE 43-1974. A megger will give this result. Establish log and record readings (see example enclosed).

Record amps at full load or at maximum design load to be on system with results expected to be less than nameplate at full load amps.

Compare the results of each test with the previous year's results. Consider the seriousness of the problems and what priority they have for repair or correction.

Report on any visual findings of significance or conditions found from testing that need further investigation.22

Remove tags and return to service.23

DEFENSE LOGISTICS AGENCY Page 2 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

ELE/VFD/A Annual Variable Freq Drive PM MECH01 365 12

Procedures

Visually inspect panel interior.1

Check all electrical connections are tight.2

Thoroughly blow out interior of all dust and dirt with dry air or nitrogen.3

Check for proper operation and make adjustments when necessary.4

DEFENSE LOGISTICS AGENCY Page 3 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

FSP/PMP/A Annual Fire Pump PM MECH04 365 12

Procedures

Perform inspection, testing and maintenance per applicable NFPA guidelines (NFPA 13, 20 and 25 at a minimum).1

Perform all weekly, monthly and semi-annual inspection testing and maintenance (FSP/PMP/W, FSP/PMP/M, FSP/PMP/S).2

***INSPECTION***3

Perform flow test of fire pump.4

Grease motor on drive shaft if grease fittings are present.5

Be sure test header piping and valves are free of water due to possible freezing.6

***MAINTENANCE***7

(hydraulic system) Lubricate pump bearings.8

(hydraulic system) Check shaft end play, and adjust if necessary.9

(hydraulic system) Check accuracy of pressure sensor (if greater than 15% out of calibration).10

(hydraulic system) Check pump coupling alignment.11

(mechanical transmission) Lubricate pump coupling.12

(mechanical transmission) Lubricate right angle gear drive.13

(electrical system) Trip circuit breaker (if mechanism is provided).14

(electrical system) Inspect and operate emergency manual starting means (without power).15

(electrical system) Tighten electrical connections as necessary.16

(electrical system) Lubricate mechanical moving parts (excluding starters and relays).17

(electrical system) Calibrate pressure switch settings.18

(electrical system) Grease motor bearings.19

DEFENSE LOGISTICS AGENCY Page 4 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

FSP/PMP/M Monthly Fire Pump PM MECH04 30 1

Procedures

Perform inspection, testing and maintenance per applicable NFPA guidelines (NFPA 13, 20 and 25 at a minimum).1

***MOTOR DRIVE TEST***2

Conduct test of electric motor driven pump assembly without flowing water.3

Allow automatic starting of pump to occur.4

Allow pump to run for a minimum of ten (10) minutes.5

Water shall discharge from the circulating relief valve (if installed).6

***WHILE PUMP IS RUNNING***7

Record system suction and discharge pressure gauge readings.8

Check fire pump rotation9

Check pump head packing glands for slight discharge.10

Adjust gland nuts if necessary.11

Check for unusual noise or vibration.12

Check packing boxes, bearings, or pump casing for overheating.13

Record pump starting pressure.14

Observe time for motor to accelerate to full speed.15

Record time pump runs after starting (for automatic stop controllers).16

***INSPECTION***17

Check that casing relief valve is discharging at proper pressure.18

Check that pump head overflow drip cup is not clogged and is flowing properly through pipe.19

Check that fire pump control valves are open, packing glands are not leaking and valve is properly tapped.20

Check all piping associated with fire pump for visible signs of leaks or deterioration of pipe.21

Check fire pump by-pass line.22

Check fire pump test header and test valves for defects.23

Be sure test header piping and valves are free of water to prevent possible freezing.24

DEFENSE LOGISTICS AGENCY Page 5 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

FSP/PMP/M Monthly Fire Pump PM MECH04 30 1

Procedures

***JOCKEY PUMP INSPECTION***25

Check jockey pump control valve for leaks, tamper alarm switch, and proper tag.26

Check rotation on motor.27

Check relief valve for proper setting.28

Check water gauges.29

Check jockey pump siamese line (cut-in/cut-off setting) with fire pump and sprinkler system.30

***CONTROLLER INSPECTION***31

Check mercoid pressure switch for proper adjustment for the cut-in/cut-off setting associated with sprinkler system demand and fire pump. (fire and jockey pump controllers)

Check indicating power lights on fire pump and jockey pump controllers.33

Check controller timer if applicable, for start/stop run period of time (fire pump controller).34

***MAINTENANCE***35

Exercise isolating switch and circuit breaker.36

DEFENSE LOGISTICS AGENCY Page 6 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

FSP/PMP/S Semi Annual Fire Pump PM MECH04 180 6

Procedures

Perform inspection, testing and maintenance per applicable NFPA guidelines (NFPA 13, 20 and 25 at a minimum).1

Perform Monthly Fire Pump PM (guideline FSP/PMP/M).2

Operate manual starting means (electrical).3

DEFENSE LOGISTICS AGENCY Page 7 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

FSP/PMP/W Weekly Fire Pump Test MECH04 7 0

Procedures

Conduct test of electric motor driven pump assembly without flowing water.1

Allow automatic starting of the pump to occur.2

Allow pump to run for a minimum of ten (10) minutes.3

Water shall discharge from the circulating relief valve (if installed).4

***WHILE PUMP IS RUNNING***5

Record system suction and discharge pressure gauge readings.6

Check pump packing glands for slight discharge.7

Adjust gland nuts if necessary.8

Check for unusual noise or vibration.9

Check packing boxes, bearings, or pump casing for overheating.10

Record pump starting pressure.11

Observe time for motor to accelerate to full speed.12

Record time pump runs after starting (for automatic stop controllers).13

DEFENSE LOGISTICS AGENCY Page 8 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

FSP/SYS/A Annual Fire Supp Insp. & Maint MECH04 365 12

Procedures

Perform inspection, testing and maintenance per applicable NFPA guidelines (NFPA 13, 14, 20 and 25 at a minimum).1

Perform all weekly, monthly and quarterly inspection, testing and maintenance (FSP/SYS/W, FSP/SYS/M, FSP/SYS/Q).2

***SPRINKLER SYSTEM ALARM VALVE***3

Check static and residual testing through 2" drain valve.4

Be sure all valves on alarm valve trim are properly tagged.5

Check for any water leaks associated with alarm valve piping or trim.6

***SIAMESE CONNECTION***7

Check ball drip valve to see if all excess water has drained out of piping to prevent possible freezing of pipe.8

***SPRINKLER RISER (Zone Control Valves & Assemblies)***9

Check for any visible sign of water leak.10

Check for proper sign tagging of valves (control valve & test drain valve).11

***SPRINKLER VISUAL INSPECTION***12

Check for proper installation of sprinkler piping or heads.13

Check for proper coverage of sprinkler heads.14

Check for any unsprinklered areas or modifications that could affect sprinkler head distribution coverage per NFPA 13.15

Check for painted or damaged sprinkler heads.16

Check for bent, missing or damaged sprinkler line supports.17

Check for visible signs of sprinkler water leaks or water damage.18

Check for sprinkler piping or sprinkler heads that are possibly exposed to freezing conditions.19

Check exterior of sprinkler piping for possible corrosion.20

DEFENSE LOGISTICS AGENCY Page 9 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

FSP/SYS/M Monthly Fire Supp Insp. & Maint MECH04 30 1

Procedures

Perform inspection, testing and maintenance per applicable NFPA guidelines (NFPA 13, 14, 20 and 25 at a minimum).1

Perform all weekly inspection, testing and maintenance (FSP/SYS/W ).2

Check all sprinkler system alarm valve gauges.3

Check swivels of fire department connection for siamese connection.4

Be sure that fire department connection (siamese) caps are installed.5

***SPRINKLER RISER (ZONE CONTROL VALVES & ASSEMBLIES)6

Check all valves for proper operation, all parts should move freely.7

Check tamper switches for proper adjustment and that they are responding to alarm annunciator panel.8

***SPRINKLER RISER (STANDPIPE FIRE HOSE VALVES)***9

Check valves for possible leaks.10

Check valves for any physical damage (hand wheel).11

Check for valve caps installed.12

***SPRINKLER HEAD STORAGE CABINET***13

Check to see that proper amount of sprinkler heads are in cabinet.14

Check to see that the heads are proper style and temperature consistent with what is installed.15

Check to see that correct sprinkler head wrench is stored in head cabinet, consistent with heads installed.16

***SPRINKLER VISUAL INSPECTION***17

Check all main control valves, sectional control valves, and auxilary sprinkler valves for any physical damage, appropriate open or closed position, tagged properly and alarmed and chained properly.

DEFENSE LOGISTICS AGENCY Page 10 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

FSP/SYS/Q Quarterly Fire Supp Insp. & Maint MECH04 90 3

Procedures

Perform inspection, testing and maintenance per applicable NFPA guidelines (NFPA 13, 14, 20 and 25 at a minimum).1

Perform all weekly and monthly inspection, testing and maintenance (FSP/SYS/W, FSP/SYS/M ).2

Check all Sprinkler System Alarm Valve fire alarm devices.3

***SPRINKLER RISER***4

Check sprinkler water flow switch for signal to annunciator panel and proper time setting on water flow.5

Check inspector's test valve per water flow.6

DEFENSE LOGISTICS AGENCY Page 11 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

FSP/SYS/QA 5 Year Fire Supp Insp. & Maint MECH04 1825 61

Procedures procedure being developed.1

DEFENSE LOGISTICS AGENCY Page 12 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

FSP/SYS/S Semi Annual Fire Supp Insp. & Maint MECH04 180 6

DEFENSE LOGISTICS AGENCY Page 13 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

FSP/SYS/W Weekly Fire Supp Insp. & Maint MECH04 7 0

DEFENSE LOGISTICS AGENCY Page 14 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/AHU/A Annual Air Handler Preventive Maint. MECH01 365 12

Procedures

***ELECTRICAL DISCONNECT - SUPPLY AND RETURN FANS***1

Check and tighten electrical connections.2

Verify proper operation.3

***SUPPLY AND RETURN AIR FAN/MOTOR ASSEMBLIES***4

Inspect fan bearings for alignment, excessive wear and end play. Make repairs and adjustments as necessary.5

Check fan bearings for excessive temperature and noise.6

Lubricate fan bearings.7

Inspect drive couplings and pulleys.8

Check belts for wear, alignment and tension. Replace belts with matched set.9

Check fan for wear and dirt. Clean as necessary.10

Check alignment, balance and security to shaft.11

Lubricate motor bearings to manufacturer's recommendations. 1.5 to 7.5 hp every three years; 10 to 40 hp every year; 50 to 150 hp every 9 months.

Record operating volts.13

Record operating amps.14

***FILTER SECTION***15

Check and replace filters.16

***COOLING/HEATING COILS***17

Inspect and clean condensate pans and drains.18

Inspect and clean coils.19

Check coils for leaking and tightness of fittings.20

Use fin comb to straighten coil fins.21

***DAMPERS***22

Check operation and clean dampers, louvers and shutters.23

Check damper linkage for lubrication and tightness of linkage joints setscrews.24

DEFENSE LOGISTICS AGENCY Page 15 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/AHU/A Annual Air Handler Preventive Maint. MECH01 365 12

Procedures

Lubricate all pivot points and linkages as needed.25

Tighten any loose connectors (mechanical/electrical/pneumatic).26

***TEMPERATURE CONTROL SYSTEM***27

Check operation of controls.28

Clean and adjust controls as necessary.29

***OPERATION INSPECTION***30

Check controls and unit for proper operation.31

Check for unusual noises or vibration.32

Inspect exterior piping and valves for leaks. Tighten connections as necessary.33

Verify freeze protection.34

***ECONOMIZER***35

Check economizer operation.36

Check and tighten electrical connections.37

Check operation and setting of mixed air thermostat.38

Check operation and setting of outdoor air thermostat.39

Check dampers and linkage for binding.40

Lubricate damper linkage.41

Check operation and setting of damper minimum position.42

Check operation of pressure relief dampers.43

Check economizer power exhaust.44

DEFENSE LOGISTICS AGENCY Page 16 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/AHU/M Monthly Air Handler PM MECH01 30 1

Procedures

Check controls for proper operation1

Amp motor and log results: amp 1 amp 2 amp 32

Check belts for wear, verify alignment and tension. Replace as necessary with matched set of belts.3

Inspect and replace air filters as necessary4

DEFENSE LOGISTICS AGENCY Page 17 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/AHU/Q Quarterly Air Handler PM MECH01 90 3

Procedures

***SUPPLY AND RETURN AIR FAN/MOTOR ASSEMBLIES***1

Inspect fan bearings for alignment, excessive wear and end play. Make repairs and adjustments as necessary.2

Check fan bearings for excessive temperature and noise.3

Lubricate fan bearings.4

Inspect and adjust drive couplings and pulleys.5

Check belts for wear, alignment and tension. Replace as necessary with matched set of belts.6

Check fan for wear and dirt. Clean as necessary.7

***FILTER SECTION***8

Check filters and replace as necessary.9

***COOLING/HEATING COILS***10

Inspect and clean condensate pans and drains.11

Inspect and clean coils.12

***OPERATION INSPECTION***13

Check controls and unit for proper operation.14

Check for unusual noise or vibration.15

Inspect exterior piping and valves for leaks. Tighten connections as necessary.16

DEFENSE LOGISTICS AGENCY Page 18 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/AHU/S Semi Annual Air Handler PM MECH01 182 6

Procedures

***SUPPLY AND RETURN AIR FAN/MOTOR ASSEMBLIES***1

Inspect fan bearings for alignment, excessive wear and end play. Make repairs and adjustments as necessary.2

Check fan bearings for excessive temperature and noise.3

Lubricate fan bearings.4

Inspect and adjust drive couplings and pulleys.5

Check belts for wear, verify alignment and tension. Replace as necessary with matched set of belts.6

Check fan for wear and dirt. Clean as necessary.7

***FILTER SECTION***8

Check filters and replace as necessary.9

***COOLING/HEATING COILS***10

Inspect and clean condensate pans and drains.11

Inspect and clean coils.12

***DAMPERS***13

Check operation and clean dampers.14

Check damper linkage for lubrication and tightness of linkage joints setscrews.15

Lubricate all pivot points and linkages as needed.16

Tighten any loose connectors (mechanical/electric/pneumatic).17

***OPERATION INSPECTION***18

Check controls and unit for proper operation.19

Check for unusual noises or vibration.20

Inspect exterior piping and valves for leaks. Tighten connections as necessary.21

***ECONOMIZER***22

Check economizer operation.23

Check and tighten electrical connections.24

DEFENSE LOGISTICS AGENCY Page 19 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/AHU/S Semi Annual Air Handler PM MECH01 182 6

Procedures

Check operation and setting of mixed air thermostat.25

Check operation and setting of outdoor air thermostat.26

Check dampers and linkage for binding.27

Lubricate damper linkage.28

Check operation and setting of damper minimum position.29

Calibrate damper minimum position.30

Check operation of pressure relief dampers.31

Check economizer power exhaust.32

DEFENSE LOGISTICS AGENCY Page 20 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/BAT/S Semi- Annual Bathroom Maintenance MECH03 180 6

Procedures

Check faucets for proper operation, repair if needed1

Check faucets, faucet stops and water lines for leaks and repair if needed2

Check sink drains for proper operation, repair leaks and clear drain if needed3

Check toilets and wax rings for leaks and proper operation, repair if needed4

Check flush valves for proper operation, repair if needed5

In men's rooms, check urinal for proper operation and leaks, repair if needed6

Check floor drain for proper water level. Check trap primer for proper operation, repair if needed7

Check floor drain cover for missing screws, replace any missing.8

DEFENSE LOGISTICS AGENCY Page 21 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/BLR/A Annual Boiler PM MECH03 365 12

Procedures

***BOILER MAINTENANCE***1

Make sure blow off piping and tank are in proper operating condition and discharge vents are clear of obstruction, and that waste is piped to a point of safe discharge.

Perform blowdown .3

Examine the venting system for proper connections and alignment4

Oil the blower motor and wipe oil and dust from the burner.5

Clean the blower wheel as necessary.6

Inspect all parts and make replacements as necessary.7

Check wiring for loose connections and burned wires.8

Inspect and check-out the burner ignition system. Refer to installation instructions for recommendations.9

Inspect and check-out the control system. Refer to installation instructions for recommendations.10

Inspect and check-out the fuel valve operation (for tight close-off). Refer to installation instructions for recommendations.11

Inspect operating controls to ensure they are level.12

Make sure that connecting tube is not kinked or damaged on remote bulb thermostats.13

Check the Pressure Relief Valve for proper operation. If the valve does not open and close properly, it must be replaced.14

Check water level controls.15

Check samples of boiler water in accordance with water treatment plan.16

Remove the pipe plugs from the tees or crosses and make certain the cross connecting piping is clean and free of obstructions.17

Verify that controls are in a plumb position for proper performance.18

Verify that piping is vertically aligned.19

Replace broken or discolored sight glass. Always use new gaskets and proper size rubber packing when replacing glass.20

Remove the low-water cut-off operating mechanism from the bowl. check and clean float ball, internal moving parts and bowl housing. Also check cross connecting piping to make certain that it is clean and free of obstruction.

Inspect electrode on electronic low water device.22

***BURNER MAINTENANCE***23

The Turbopower module is heavy. No attempt should be made to hold, lift or position module without proper equipment capable of handling the weight.

DEFENSE LOGISTICS AGENCY Page 22 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/BLR/A Annual Boiler PM MECH03 365 12

Procedures

Shut off fuel and electrical power supplies.25

Drain the boiler.26

Disconnect wiring to the burner and gas from burner at incoming union to burner.27

Remove the four nuts that hold the burner assembly to the module and the bolts that hold the flue collector to the module.28

Disconnect the stack from the flue outlet on the collector.29

Carefully remove the burner and then the flue collector assembly from the module.30

Pull the burner straight out with a slight twisting motion to avoid damaging the combustion chamber refractory material.31

Remove the bolts on the front tubesheet. Break the seal at gasket or o-ring from the tank flange and pull the module from the boiler.

Use extreme caution in handling the module to avoid bending or distorting the firetubes.

Clean the module with high pressure hose or an inhibited acid as recommended by chemical supplier for removal of scale from the fire tubes.

Reinstall the module after it has been cleaned using a new o-ring or gasket.34

Retorque bolts to 35-40 ft.-lbs. using an alternating star pattern to insure proper seating of the o-ring or gasket. A small amount of silicon sealant or other suitable adhesive may be used to hold the o-ring or gasket in place while positioning.

Apply adhesive sparingly. Replace any damaged bolts with those of a comparable grade only.36

When module is installed, fill the boiler with water and check for leaks.37

Check for baffles in all fire tubes. Position end of baffle even with end of firetube.38

Check the insulating seal on the flue collector before replacing in module. If damaged, it may be patched with any suitable 400 deg F insulation material.

Reassemble the unit in the same order it was disassembled and return to service.40

DEFENSE LOGISTICS AGENCY Page 23 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/BLR/M Monthly Boiler PM MECH03 30 1

Procedures

Check the Pressure Relief Valve for proper operation. If the valve does not open and close properly, it must be replaced.1

Check water level controls.2

Check samples of boiler water in accordance with water treatment plan.3

Remove the pipe plugs from the tees and crosses and make certain the cross connectiing piping is clean and free of obstructions.4

Verify that controls are in a plumb position for proper performance.5

Verify that piping is vertically aligned.6

Replace broken or discolored sight glass. Always use new gaskets and proper size rubber packing when replacing glass.7

Perform and record flue gas analysis, room temperature including CO2 and O2.8

DEFENSE LOGISTICS AGENCY Page 24 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/BLR/Q Quarterly Boiler PM MECH03 90 3

Procedures

Make sure blow off piping and tank are in proper operating condition and discharge vents are clear of obstruction, and that waste is piped to a point of safe discharge.

Perform blowdown.2

Inspect and check-out the burner ignition system. Refer to installation instructions for recommendations.3

Inspect and check-out the control system. Refer to installation instructions for recommendations.4

Inspect and check-out the fuel valve operation (for tight close-off). Refer to installation instructions for recommendations.5

Inspect operating controls to ensure they are level.6

Make sure that connecting tubing is not kinked or damaged on remote bulb thermostats.7

Check the pressure relief valve for proper operation. If valve does not open and close properly, it must be replaced.8

Check water level controls.9

Check samples of boiler water in accordance with water treatment plan.10

Remove the pipe plugs from the tees or crosses and make certain the cross connecting piping is clean and free of obstructions.11

Verify that controls are in a plumb position for proper performance.12

Verify that piping is vertically aligned.13

Replace broken or discolored sight glass. Always use new gaskets and proper size rubber packing when replacing glass.14

DEFENSE LOGISTICS AGENCY Page 25 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/BLR/S Semi Annual Boiler PM MECH03 365 12

Procedures

Make sure blow off piping and tank are in proper operating condition and discharge vents are clear of obstruction, and that waste is piped to a point of safe discharge.

Perform blowdown.2

Oil the blower motor and wipe oil and dust from the burner.3

Clean the blower wheel if necessary.4

Inspect all parts and make replacements when necessary.5

Check wiring for loose connections and burned wires.6

Inspect and check-out the burner ignition system. Refer to installation instructions for recommendations.7

Inspect and check-out the control system. Refer to installation instructions for recommendations.8

Inspect and check-out the fuel valve operation (for tight close-off). Refer to installation instructions for recommendations.9

Inspect operating controls to ensure they are level.10

Make sure that connecting tubing is not kinked or damaged on remote bulb thermostats.11

Check the Pressure Relief Valve for proper operation. If valve does not open and close properly, it must be replaced.12

Check water level controls.13

Check samples of boiler water in accordance with water treatment plan.14

Remove the pipe plugs from the tees or crosses and make certain the cross connecting piping is clean and free of obstructions.15

Verify that controls are in a plumb position for proper performance.16

Verify that piping is vertically aligned.17

Replace broken or discolored sight glass. Always use new gaskets and proper size rubber packing when replacing glass.18

DEFENSE LOGISTICS AGENCY Page 26 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/BLR/W Weekly Boiler PM MECH03 7 0

Procedures

If sequence equals SEQ B, change to SEQ C.1

If sequence equals SEQ C, change to SEQ A.2

Record Boiler #1 hours of burner operation.3

Record Boiler #1 flame signal strength4

Record Boiler #2 hours of burner operation.5

Record Boiler #2 flame signal strength6

Record Boiler #3 hours of burner operation.7

Record Boiler #3 flame signal strength8

Change Boiler Sequencer to next available of three positions as listed below:9

If sequence equals SEQ A, change to SEQ B.10

DEFENSE LOGISTICS AGENCY

8/17/2005

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CDCAHU/A Annual Air Handler PM MECH01 365 12

Procedures

Inspect & Replace filters as necessary1

Check & Clean Condenser Pan2

Inspect coils for proper air flow3

Check belts and pulleys4

Check bearing locking collar and set screws5

Check Controls for proper operation6

Amp motor and log results7

Check and Tighten all electrical connections8

Clean Strainer9

Check and Calibrate chilled and hot water valves for proper operation10

Clean fan wheels and shaft11

Check and calibrate Control Circuit12

Check and repair Air Handler insulation and flex connectors13

Check and repair pipe insulation14

Check Dampers and Linkage and Lubricate15

Clean cooling and hot water coils16

DEFENSE LOGISTICS AGENCY Page 28 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CDCAHU/M Monthly Air Handler PM MECH01 30 1

Procedures

Inspect & Replace air Filters as necessary1

Check belts and pulleys2

Check Controls for proper operation3

Amp motor and log results Amps1_____ Amps2_____ Amps3_____4

DEFENSE LOGISTICS AGENCY Page 29 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CDCAHU/S Semi Annual Air Handler PM MECH01 180 6

Procedures

Inspect & Replace Filters as necessary1

Check & Clean Condenser Pan2

Inspect Coils for proper Air Flow3

Check belts and pulleys4

Check bearing locking collars and set screws5

Check Controls for proper operation6

Amp motor and log results7

DEFENSE LOGISTICS AGENCY Page 30 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CDCAS/A Annual Air Seperator PM MECH01 365 12

Procedures

Check and record refrigerant pressures1

Blowdown Seperator2

Check and change filters as needed3

Clean coil4

Check and tighten all electrical connections5

Change particulate filter6

DEFENSE LOGISTICS AGENCY Page 31 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CDCAS/M Monthly Air Seperator PM MECH01 30 1

Procedures

Check and record refrigerant pressures1

Blowdown seperator2

Check and change filters as needed3

DEFENSE LOGISTICS AGENCY Page 32 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CDCCHL/A CDC CHILLER PM MECH01 365 12

Procedures

Check the oil level and refrigerant charge.1

Perform compressor(s) oil analysis to determine system moisture content and acid level. If corrective action is necessary, follow manufacturer's recommendations.

Check operating and safety controls, inspect electrical components for deficiencies. Tighten all electrical sonnections as required.3

Inspect all piping components for leakage and damage. Clean out any inline strainers. Clean the condenser fans.4

Check the fan assemblies for proper clearance in the fan openings and for motor shaft misalignment, abnormal end-play, vibration and noise.

Clean and repaint any areas that show signs of corrosion. All paint used shall be manufacturer's specification.6

Perform all monthly maintenance procedures.7

DEFENSE LOGISTICS AGENCY Page 33 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CDCCHL/M MONTHLY CHILLER PM MECH01 30 1

Procedures

Inspect the entire system for unusual conditions and inspect the sondenser soils for dirt and debris. If conditions warrant, clean condenser coils per manufacturer's specifications.

If operating temperatures/pressures and sight glass conditions seem to indicate a refrigerant overage or shortage, take action per manufacturer's recommendations.

Check the evaporator and condenser refrigerant pressure in the Refrigerant Report Menu on the Clear Language Display.3

Manually retate condenser fans to insure proper clearance on the fan openings.4

Check the liquid sight glasses. The refrigerant flow past the sight glasses chould be clear.5

Measure and record the system superheat/subcooling.6

After unit has operated for 30 minutes and the system has stabilized, check the following items.7

Check fan for proper rotation.8

Inspect fan/motor assembly for corrosion.9

Check belt alignment, condition and tension and make repairs or adjustments as necessary.10

Inspect and clean fan blades.11

Check fan blade balance and re-balance if necessary.12

Check and tighten mounting bolts.13

Check fans and air intake screens and remove all dirt and debris.14

Check spray distribution system.15

Check and re-orientate nozzles (if necessary) on evaporative condensers and industrial fluid coolers.16

Inspect eliminators and replace if necessary.17

Adjust flush troughs (if necessary).18

Check and clean water outlet strainer.19

Check bleed off rate and adjust if necessary.20

Check operating water level in pan. Adjust float controls (water level sensors and feed solenoids).21

Clean sensor probes.22

Check tightness and adjustments of thrust collars on sleeve bearing units and locking collars on ball bearing units. Check for security to shaft and end play.

Clean and flush sump.24

DEFENSE LOGISTICS AGENCY Page 34 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CDCCHL/M MONTHLY CHILLER PM MECH01 30 1

Procedures

Check sump strainer.25

Check and adjust sump water level.26

Inspect and clean overflow as required.27

Check drain for obstructions.28

Inspect complete tower assembly for corrosion and wear.29

Scrape/clean/paint rust spots as required.30

Check for leaks.31

Check and record water inlet and outlet temperture.32

Check tower fan thermostat setting and operation.33

DEFENSE LOGISTICS AGENCY Page 35 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CDCCHL/S CDC Chiller PM Semi -Annual MECH01 180 6

DEFENSE LOGISTICS AGENCY Page 36 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CDCCMP/A Annual Pneumatic Air Comp PM MECH01 365 12

Procedures

Check belts and pulleys1

Check relief valve2

Check oil level3

Amp motors and log results4

Blowdown5

Change Oil6

Change Air filter7

DEFENSE LOGISTICS AGENCY Page 37 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CDCCMP/M Monthly Pneumatic Air Comp PM MECH01 30 1

Procedures

Check belts and Pulleys1

Check Relief Valve (Run compressor until relief valve opens and reset)2

Check oil level3

Amp motor and log results4

Blow Down5

DEFENSE LOGISTICS AGENCY Page 38 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CDCMXF/A Annual Mechanical Room Exhaust Fan

PM

MECH01 365 12

Procedures

Check belts and pulleys1

Check for unusual noise2

Check controls for proper operation3

Check & lube dampers and linkage4

Lubricate all bearings5

Amp motor and record readings6

Clean fan blades7

Check starter & clean contactor, replace if needed8

Check & tighten all electrical connections9

DEFENSE LOGISTICS AGENCY Page 39 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CDCMXF/M Monthly Mechanical Room Exhaust Fan PM

MECH01 30 1

Procedures

Check belts & pulleys1

Check for unusual noises2

Check controls fpr proper operation3

Check & Lubricate dampers and linkage4

DEFENSE LOGISTICS AGENCY Page 40 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CDCMXF/S Semi Annual Mech. Room Exhaust Fan PM

MECH01 180 6

Procedures

Check belts & pulleys1

Check for unusual noise2

Check controls for proper operation3

Check and lubricate dampers & linkage4

Lubricate all bearings5

Amp motor and record readings6

Clean fan blades7

DEFENSE LOGISTICS AGENCY Page 41 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CDCPHF/M Monthly Penthouse Fan PM MECH01 30 1

Check filters and clean as needed1

DEFENSE LOGISTICS AGENCY Page 42 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CDCPMP/A Annual Pump PM MECH01 365 12

Procedures

Check seals & bearings1

Amp motor and log readings2

Check pump coupler3

Check for unusual vibration4

Record pressure differential5

Lubricate pump & motor bearings6

Clean Strainer7

Check & tighten all electrical connections8

Clean & paint as needed9

Repair any damaged insulation10

Check expansion tank11

DEFENSE LOGISTICS AGENCY Page 43 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CDCPMP/M Monthly Pump PM MECH01 30 1

Procedures

Check seals & bearings1

Amp motor & log readings2

Check pump coupler3

Check for unusual vibration4

Record pressure differential5

DEFENSE LOGISTICS AGENCY Page 44 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CDCPMP/S Semi Annual Pump PM MECH01 180 6

Procedures

Check seals & bearings1

Amp motor and log readings2

Check pump coupler3

Check for unusual vibration4

Record pressure differential5

Lubricate pump & motor bearings6

DEFENSE LOGISTICS AGENCY Page 45 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CDCRF/M Monthly Recirculating Fan PM MECH01 30 1

Procedures

Check Filter1

Check Fan Motor2

Check for proper operation3

DEFENSE LOGISTICS AGENCY Page 46 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CDCRI/A Annual Reach In Fridge and Freezer

PM

MECH01 365 12

DEFENSE LOGISTICS AGENCY Page 47 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CDCRI/M Monthly Reach In Fridge and Freezer

PM

MECH01 30 1

Procedures

Check Indicator Lights1

Check & Verify Box Temperature2

DEFENSE LOGISTICS AGENCY Page 48 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CDCRI/S Semi Annual Reach In Fridge and Frzr

PM

MECH01 180 6

Procedures

Check Indicator lights1

Check & Verify Box Temperature2

Check condenser & evaporator fans for proper operation3

Check door seal & hardware4

Check T/stat for proper operation5

DEFENSE LOGISTICS AGENCY Page 49 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CDCSXF/S Semi Annual Store Room Exhaust Fan

PM

MECH01 180 6

DEFENSE LOGISTICS AGENCY Page 50 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CDCWT/A Annual Water Treatment Equip PM MECH01 365 12

Procedures

Drain & Flush Tank1

Clean & Repaint Tank2

DEFENSE LOGISTICS AGENCY Page 51 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CDCWT/W Weekly Water Treatment Equip PM MECH01 7 0

Check & Log Readings1

DEFENSE LOGISTICS AGENCY Page 52 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CDCXF/A Annual exhaust fan PM MECH01 365 12

Procedures

Check belts & pulleys1

Check for noisy operation2

Check & lubricate linkage3

Check dampers for proper operation4

Grease bearings5

Amp Motor and log results6

Check motor starter and clean contactors7

Check & tighten all electrical connections8

Check controls for proper operation9

DEFENSE LOGISTICS AGENCY Page 53 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CDCXF/M Monthly Exhaust Fan PM MECH01 30 1

Procedures

Check belts & pulleys1

Check operation (noisy?)2

Check & lubricate linkage operation3

Check dampers for proper operation4

DEFENSE LOGISTICS AGENCY Page 54 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CDCXF/S Semi Annual Exhaust Fan PM MECH01 180 6

Procedures

Check belts & pulleys1

Check for noisy operation2

Check & lubricate linkage3

Check dampers for proper operation4

Grease all bearings5

Amp motor and log6

DEFENSE LOGISTICS AGENCY Page 55 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CHL/A Annual Chiller PM MECH01 365 12

Procedures

Test motor winding insulation resistance.1

Check inlet valve operator and linkage. Lubricate where required.2

Check compressor bearings/gear for signs of wear.3

***LUBRICATION SYSTEM***4

Change oil, oil filter, oil reclaim filter and refrigerant filter dryer.5

Conduct analysis on oil and oil filter at manufacturer (Carrier) and provide recommendation for repair actions, if any.6

Check oil pump, seal and motor. Test operation.7

Clean dirt leg.8

Check and adjust immersion oil heater and thermostat.9

Check all other system components including cooler, strainer and solenoid valve (if applicable).10

***STARTER***11

Check and clean contactors.12

Check linkage.13

Tighten all electrical connections and check terminals.14

Clean or replace air filter.15

Vacuum or blow off accumulated debris.16

Check for proper sequence of operation of starter mounted controls.17

***CONTROL PANEL***18

Tighten all electrical connections and clean panel.19

Verify proper operation and settings of all operating and safety devices.20

Check oil pressure, condenser pressure and cooler pressure transducers. calibrate and make repairs as needed.21

Test all indicator lights.22

***CONDENSER***23

Check water flow.24

DEFENSE LOGISTICS AGENCY Page 56 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CHL/A Annual Chiller PM MECH01 365 12

Procedures

Check flow switch operation.25

Remove condenser head and inspect.26

Mechanically brush clean condenser water tubes.27

***COOLER***28

Check the water flow.29

Check flow switch operation.30

Inspect and clean cooler tubes.31

***GENERAL MAINTENANCE***32

Conduct a leak check. Identify and correct leak sources.33

Replenish refrigerant level as required.34

Record condition of sight glasses.35

Check refrigerant cycle to verify the proper operating balance.36

Check condenser water and chilled water heat transfer.37

Repair insulation removed for inspection and maintenance.38

Inspect piping and relief valves. Make repairs as necessary.39

Recalibrate Chiller Pressure Transducer.40

Recalibrate Condenser Pressure Transducer.41

Recalibrate Oil Pressure Transducer.42

Perform vibration analysis as a predictive maintenance procedure - provide a report with repair actions identified - if any - to maintain chillers in maximum availability; reliability status.

***MOTOR***44

Record voltages.45

DEFENSE LOGISTICS AGENCY Page 57 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CHL/M Monthly Chiller PM MECH01 30 1

Procedures

Perform vibration analysis as a predictive maintenance procedure - provide a report with repair actions identified - if any - to maintain chillers in maximum availability; reliability status.

DEFENSE LOGISTICS AGENCY Page 58 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CHL/Q Quarterly Chiller PM MECH01 90 3

Procedures

Check operation of controls.1

Check oil and refrigerant levels.2

Check operation of lube systems.3

Check the oil return system.4

Check operation of motor and starter.5

Record operating conditions.6

Check log and review chiller system operation with operator.7

Log and report repairs and parts that are required.8

Check oil pressure drop for filter replacement.9

Recalibrate Chiller Pressure Transducer.10

Recalibrate Condenser Pressure Transducer.11

Recalibrate Oil Pressure Transducer.12

Conduct analysis of oil and oil filter at manufacturer (Carrier) and provide recommendations for repair actions, if any.13

Perform vibration analysis as a predictive maintenance procedure - provide a report with repair actions identified - if any - to maintain chillers in maximum availability; reliability status.

Inspect cooler and condenser tubes for scale. Clean tubes. perform this step in the Fall Quarter only.15

Inspect chiller and adjust operating and safety controls.16

DEFENSE LOGISTICS AGENCY Page 59 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CHL/TA Non-Destructive Chiller Tube Analysis MECH01 730 24

Procedures

***SPECIAL INSTRUCTIONS***1

Coordinate performance of this activity with annual PM (HVC/CHL/A).2

Complete an eddy current test of all heat exchanger tubes, both cooler and condenser.3

The test shall be performed in accordance with current requirements and procedures of ASME Boiler and Pressure Vessel Code Section V Nondestructive examination, Article 8, Eddy Current Examination of Tubular Products and applicable ASTM standards.

A certified Level II or higher Technician or equivalent shall be used for this analysis in accordance with the American Society of Nondestructive Testing Recommended Practices, SNT-TC-1A, or current version.

The test is to be witnessed by the COR or designated inspector.6

***TEST PROCEDURES***7

Prepare equipment for non-destructive testing (NDT). Remove heat exchanger heads, piping, clean tubes, and erect scaffolding as needed.

Test shall be recorded as required by the ASME code Section V (Article 8 - Appendix I, Article I-20).9

System calibration shall be confirmed hourly.10

The written procedure in paragraph I-23, Article 8 - Appendix I in the ASME code is required to be followed.11

Strip Chart recordings shall be provided for:12

a. Each calibration standard and artificial discontinuity comparator used. Annotate to identify each defect machined in the standard and calibration of each division on the chart.

b. Typical good tube in each bundle.14

c. For each defective tube, annotate to identify tube. Indicate nature and extent of defect.15

Test each tube to detect, as a minimum, leaks, saddle damage, pitting, interior erosion/corrosion, gasket condition, presence of "tramp" metal, presence of tube bulges, tube seem condition; visual inspect of scale build up, and tube sheet condition.

Correct deficiencies as directed.17

Restore equipment to service.18

***REPORTS AND RECORDS***19

A copy of the magnetic tape record shall be maintained by the NDT contractor and furnished if requested by the Government.20

A preliminary job site report shall be provided as soon as the test is completed.21

Within ten (10) working days following completion of the test, the NDT contractor shall provide two complete test reports including the following:

a. Written test procedure.23

b. Recommendations - list all tubes recommended for replacement or isolation.24

DEFENSE LOGISTICS AGENCY Page 60 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CHL/TA Non-Destructive Chiller Tube Analysis MECH01 730 24

Procedures

c. Make complete description of defects (location, depth, inside or outside surface).25

d. Map location - show tube row, number, and support for each tube bundle.26

e. Name of technician performing tests and evaluating data.27

f. Contractor's certification of technician qualifications.28

DEFENSE LOGISTICS AGENCY Page 61 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CLT/A Annual Cooling Tower PM MECH01 365 12

Procedures

Refill tower.1

Verify proper operation of electrical disconnect.2

Lubricate motor and/or fan bearings.3

Check for unusual bearing wear.4

Check for fan balance and alignment.5

Check fan for proper rotation.6

Inspect fan/motor assembly for corrosion.7

Check belt alignment, condition and tension and make repairs or adjustments as necessary.8

Inspect and clean fan blades.9

Check fan blade balance and re-balance if necessary.10

Check and tighten mounting bolts.11

Check fans and air intake screens and remove all dirt and debris.12

Check spray distribution system.13

Check and re-orientate nozzles (if necessary) on evaporative condensers and industrial fluid coolers.14

Inspect eliminators and replace if necessary.15

Adjust flush troughs (if necessary).16

Check and clean water outlet strainer.17

Check bleed off rate and adjust if necessary.18

Check operating water level in pan. Adjust float controls (water level sensors and feed solenoids).19

Clean sensor probes.20

Check tightness and adjustments of thrust collars on sleeve bearing units and locking collars on ball bearing units. Check for security to shaft and end play.

Clean and flush sump.22

Check sump strainer.23

Check and adjust sump water level.24

DEFENSE LOGISTICS AGENCY Page 62 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CLT/A Annual Cooling Tower PM MECH01 365 12

Procedures

Inspect and clean overflow as required.25

Check drain for obstructions.26

Inspect complete tower assembly for corrosion and wear.27

Scrape/clean/paint rust spots as required.28

Check for leaks.29

Check and record water inlet and outlet temperture.30

Check tower fan thermostat setting and operation.31

This maintenance procedure must coincide with the annual chiller maintenance (HVC/CHL/A).32

Drain, flush, pressure wash and/or brush to remove accumulated foreign material. make repairs as necessary.33

DEFENSE LOGISTICS AGENCY Page 63 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CLT/M Monthly Cooling Tower PM MECH01 30 1

Procedures

Check fans and air intake screens and remove all dirt and debris.1

Check spray distribution system.2

Check and re-orientate nozzles (if necessary).3

Adjust flush troughs (if necessary).4

Check all condenser piping for proper support and insulation.5

Check bleed of rate and adjust if necessary.6

Check operating water level in pan. Adjust float controls (water level sensors and feed solenoids).7

Check tightness and adjustments of thrust collars on sleeve bearing units and locking collars on ball bearing units.8

Inspect sump, clean and flush if necessary.9

Clean sump strainer.10

Check and adjust sump water level.11

Lubricate motor and/or fan bearings.12

Check belt alignment, condition and tension and make repairs or adjustments as necessary.13

DEFENSE LOGISTICS AGENCY Page 64 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CLT/Q Quarterly Cooling Tower PM MECH01 90 3

Procedures

Check belt alignment, condition and tension and make repairs or adjustmenst as necessary.1

Check and tighten mounting bolts.2

Check fans and air intake screens and remove all dirt and debris.3

Check spray distribution system.4

Check and re-orientate nozzles (if necessary) on evaporative condensers and industrial fluid coolers.5

Adjust flush troughs (if necessary).6

Check and clean water outlet strainer.7

Check bleed off rate and adjust if necessary.8

Check operating water level in pan. Adjust float controls (water level sensors and feed solenoid).9

Clean sensor probes.10

Check tightness and adjustments of thrust collars on sleeve bearing units and locking collars on ball bearing units. Check for security to shaft and end play.

Clean and flush sump.12

Check sump strainer.13

Check and adjust sump water level.14

Check drain for obstructions.15

Check for leaks.16

Check and record water inlet and outlet temperature.17

Check tower fan thermostat setting and operation.18

Lubricate motor and/or fan bearings.19

Check for unusual bearing wear.20

DEFENSE LOGISTICS AGENCY Page 65 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CMP/A Annual Pneumatic Air Comp PM MECH01 365 12

Procedures

Check oil level of both compressor and engine. Change compressor oil and oil filter.1

Inspect tank for oil and water.2

Drain moisture from tank by opening drain cock at bottom of tank. DO NOT OPEN drain if tank pressure exceeds 40 psi.3

Check automatic tank drain.4

Clean dust and foreign matter from the cylinder head, motor, fan blade, air lines, intercooler and tank.5

Replace air intake filter.6

Check and record run-time and off-time.7

Check belts for wear, tension and alignment. Replace worn belts and make adjustments as necessary.8

Check and inspect motor.9

Lubricate motor bearings.10

Change crankcase oil.11

Inspect and clean starter.12

Tighten all electrical connections.13

Check entire system for air leaks around fittings, connections and gaskets.14

Tighten nuts and cap screws as necessary.15

Check and clean compressor valves, replace springs, disc, and seats if worn or damaged.16

Test relief valves for proper operation by pulling ring on all PRVs. replace PRV if operating incorrectly.17

Replace PRV filter.18

Verify control operation through full sequence. Check all operating pressures.19

Check proper position of dryer bypass valve.20

Check dryer, verify operation and clean dryer.21

Change dryer filter.22

Clean, scrape and paint rust spots as required.23

DEFENSE LOGISTICS AGENCY Page 66 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CMP/Q Quarterly Pneumatic Air Comp PM MECH01 90 3

Procedures

Check crankcase oil.1

Check air filter and replace as necessary.2

Check entire system for air leaks around fittings, connections, and gaskets.3

DEFENSE LOGISTICS AGENCY Page 67 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/CMP/S Semi Annual Pneumatic Air Comp PM MECH01 365 12

Procedures

Run system and check for excessive noise or vibrations.1

Drain moisture from tank by opening tank drain cock at bottom of tank. DO NOT OPEN drain if tank pressure exceeds 40 psi.2

Clean dust and foreign matter from the cylinder head, motor, fan blade, air lines, intercooler and tank.3

Remove and clean air intake filter.4

Check belts for wear, tension and alignment. Replace worn belts and make adjustments as necessary.5

Change crankcase oil.6

Check entire system for air leaks around fittings, connections and gaskets.7

Tighten nuts and cap screws as necessary.8

Check and clean compressor valves, replace springs, disc, and seats if worn or damged.9

Test relief valves for proper operation by pulling ring on all PRVs. Replace PRV if operating incorrectly.10

Verify operation through full sequence. Check all operating pressures.11

Check proper position of dryer bypass valve.12

Check dryer and verify operation.13

Change dryer filter.14

DEFENSE LOGISTICS AGENCY Page 68 of 122

PM TASK DESCRIPTION MonthsorDaysFREQUENCY:SHOP

HVC/COND/A Outside A/C Condensing Unit MECH01 365 12

Procedures

Secure and tag-out power. Check and tighten all wiring connections.1

Check and clean condenser coil. Straighten fins as necessary.2

Inspect condenser fan motor and fan blade3

Inspect all piping for leaks.