SERVICE CHEMICAL FIRE EXTINGUISHER (M1059A3 ONLY) Continued
14. Examine hose (1) and hose couplings (2) for cuts or cracks.
15. Check nozzle (3) for proper operation.
Check handle (4) for binding.
Unscrew nozzle tip (5) and inspect for obstructions or damaged gasket (6).
Inspect plunger tip (7) for cuts or brittleness.
16. Check hose (1) for blockage.
Place extinguisher (8) horizontally on solid surface and discharge outlet UP.
Loosen filler cap (9) three and one half turns.
Wipe nozzle (3) clean and blow into extinguisher (8), observing gas escape from filler cap (9).
Unscrew hose (1) from extinguisher (8) and check preformed packing (10) for damage. If damaged, replace.