Fire Extinguisher—Charging

1. NOTE:

   
   H92727-UN-10SEP08

   A - Nut

   B - Valve Assembly

   C - Cylinder

   Water fire extinguisher is shipped uncharged. Prior to delivery of machine the water fire extinguisher must be charged.

   When an antifreeze charge is used to freeze protect extinguisher, a complete discharge and maintenance is required.

   CAUTION: Before attempting to recharge ensure that extinguisher is completely depressurized.

   Discharge all remaining pressure and water (or antifreeze solution) making sure that there is no remaining air pressure.

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2. Loosen nut (A) and remove valve assembly (B) from cylinder (C).

3. IMPORTANT: Fire extinguisher must not be exposed to freezing temperatures unless protected with antifreeze. See instructions decal on extinguisher for further information.

   NOTE: Corrosion inhibitor must be used, if water includes high levels of chlorides (40 ppm).

   Fill cylinder with 9.5 L (2.5 gal.) of clean water or antifreeze solution.

   NOTE: Fluid level will be approximately 15.2 cm (6 in.) below the top of the cylinder.

4. CAUTION:

   
   H92728-UN-08SEP08

   A - Valve Assembly

   B - Nut

   C - Pressurizing Valve

   Hand tighten nut to specification. Over tightening with wrench will damage valve.

   Install valve assembly (A) and tighten nut (B) to specification.

   Item	Measurement	Specification
   Nut	Torque	11.3—11.9 N·m (100—105 lb-in)

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5. Remove cap from pressurizing valve (C).

6. NOTE: Set pressure regulator on air compressor to no more than 175 kPa (1.75 bar, 25 psi) higher than gauge operating pressure.

   CAUTION: Never leave fire extinguisher connected to a regulator of a high-pressure source for an extended period of time. Do not over pressurize fire extinguisher. Fire extinguisher may rupture if over pressurized.

   Pressurize fire extinguisher to specification using air or nitrogen.

   Item	Measurement	Specification
   Fire Extinguisher	Pressure	690 kPa 6.9 bar (100 psi)

7. NOTE: Check nut, gauge, pressurizing valve, cylinder welds, and valve orifice for leaks using leak detection fluid or a solution of soapy water.

   Install previously removed cap on pressurizing valve.

8. 
   H92729-UN-08SEP08

   A - Pin

   B - Hose and Nozzle Assembly

   C - Holder

   Install pin (A) with ring facing towards front of extinguisher and install tamper seal.

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9. Install hose and nozzle assembly (B) in holder (C).

10. Install fire extinguisher on machine.