Preventive Maintenance Checklist: FIRE SUPPRESSION SYSTEM, DRY CHEMICAL - Semi-Annual

• Site conducted

• Conducted on

  Date

• Prepared by

• Location

• Work Order Number

(T)ools, (S)afety Equipment and (M)aterials

• Mechanics tool set

  Yes

  No

  N/A

• Spare hoses and couplings

  Yes

  No

  N/A

• Seals

  Yes

  No

  N/A

• Tags

  Yes

  No

  N/A

• Cleaning materials

  Yes

  No

  N/A

• Safety goggles

  Yes

  No

  N/A

• Gloves

  Yes

  No

  N/A

Safety Guidelines

• Schedule maintenance activity with operating personnel

  Yes

  No

  N/A

• Follow site safety procedures and your supervisor instructions

  Yes

  No

  N/A

• Record and report to your supervisor any equipment damage or deficiencies found while performing this maintenance task

  Yes

  No

  N/A

• Record all test results in the component maintenance log

  Yes

  No

  N/A

• Obtain and review manufacturer operation and maintenance instructions

  Yes

  No

  N/A

• All tests shall conform to the manufacturer test procedures and standard values

  Yes

  No

  N/A

** SPECIAL INSTRUCTIONS ESPECIALLY FOR SEMI-ANNUAL BELOW:

• Procedure for returning the system to service after discharge is outlined in the manufacturer as soon as possible after discharge

  Yes

  No

  N/A

• Each Range Guard system must have all discharge piping (or discharge tubing) flushed out with water after each discharge. A procedure for flushing is provided in the manufacturer literature

  Yes

  No

  N/A

• Recharging the cylinder must be in strict compliance with manufacturer outlined procedure

  Yes

  No

  N/A

• The extinguishing fluid, is alkaline (similar to soap) and may cause skin irritation upon prolonged contact. After exposure, wash thoroughly with soap and fresh water. Use eye and skin protection<br>when handling liquid.

  Yes

  No

  N/A

• ONLY THE CHEMICAL EXTINGUISHANT SUPPLIED BY MANUFACTURER SPRINKLER IS TO BE USED IN THE RANGE GUARD SYSTEM.

  Yes

  No

  N/A

• Overfilling or under-filling of cylinders can result in consequences that are harmful to people or property or both

  Yes

  No

  N/A

• Pressurizing gas should be supplied through a pressure regulator device with an outlet setting not to exceed 200 PSI at 70 degrees F

  Yes

  No

  N/A

• A calibrated pressure gauge shall be used to recharge the cylinder

  Yes

  No

  N/A

• Always store and transport charged cylinders in a secure and upright position. Never handle cylinders by the valve

  Yes

  No

  N/A

• Inspection and testing shall be performed by a certified technician, as recommended by the National Fire Protection Association (requirement 96 and requirement 17A).

  Yes

  No

  N/A

Maintenance Procedures

• Make a visual inspection checking for irregularities

  Yes

  No

  N/A

• Check for corrosion to any detection system component

  Yes

  No

  N/A

• Check unit for tampering

  Yes

  No

  N/A

• Check seals

  Yes

  No

  N/A

• Check for loose piping and missing or grease covered nozzle caps

  Yes

  No

  N/A

• Check visual indicator on the releasing unit to make certain the system is cocked

  Yes

  No

  N/A

• Disconnect mechanical control box(es) and disconnect nitrogen cylinder if used

  Yes

  No

  N/A

• The charging cylinder(s) should be pressurized as specified. Check hydro-test date (every 12 years<br>maximum). CHECK ALL TUBING CONNECTIONS FOR TIGHTNESS.

  Yes

  No

  N/A

• Check to insure nozzle seals are intact. If not, remove and clean the nozzle. Replace the seals with factory supplied seals only. Other seals may result in failure to rupture, and will prevent discharge from the nozzle. Tighten the cap.

  Yes

  No

  N/A

• Without disrupting cooking operations, close all cooking appliances with hand operated valves. Operate pneumatic release. Operate electrical shut-offs. Reset and re-light all pilots. Check the system gas valve for grease build-up.

  Yes

  No

  N/A

• Replace fusible links with Automatic sprinkler links of a load rating of 3 to 45 lbs. of the required temperature

  Yes

  No

  N/A

• Clean grease out of conduit openings at detector bracket

  Yes

  No

  N/A

• Reconnect mechanical control box(es). Remove keeper pin. Install nitrogen cylinder

  Yes

  No

  N/A

• Assure that system is tagged and that a certificate is available for verification

  Yes

  No

  N/A

• Assess need for hydrostatic testing

  Yes

  No

  N/A

Maintenance Hours

• Time spent on work order?