The fire extinguisher shown in the illustration requires the use of the puncture lever indicated by piece number __________. See illustration SF-0006.
• Cartridge-operated fire extinguisher layout • Role of the puncture lever in releasing gas from the cartridge • Difference between the puncture lever, pull pin, and discharge handle
• On the illustration, which numbered part is physically connected to the mechanism that will drive a pin into the gas pressure cartridge? • Which numbered part is separate from the main discharge handle/nozzle assembly but is located right next to the gas pressure cartridge? • If you removed the gas cartridge, which numbered part would no longer have a purpose?
• Identify the arrow on the drawing that actually points to the label "Puncture Lever" and note its piece number. • Confirm that the part you chose is the one that would move to puncture the gas pressure cartridge, not to aim or hold the extinguisher. • Be sure you are not confusing the pull pin (safety device) with the puncture lever (activation device).
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