Amerex 05601 - Manual (Page 3)

2
6. Visually inspect the pressure gauge:
a. If bent, damaged or improper gauge, depressurize and replace
b. If pressure is low, check for leaks
c. If over pressurized (overcharged), reduce to 100 psi (690 kPa) by depressing the valve
lever and check for leaks.
7. Inspect the footstand (base). If cracked or broken replace with proper footstand.
8. Check ring pin for freedom of movement by breaking the seal and removing the pin. Replace
the ring pin if bent or if removal is difficult.
9. Inspect discharge lever for dirt or corrosion that might impair freedom of movement. Inspect
carrying handle for proper installation. If lever, handle or rivets are damaged or distorted,
replace with proper Amerex part(s).
10. Remove hose assembly, inspect hose assembly for damage, replace as necessary. Blow air
through hose assembly to insure passage is clear of foreign material.
11. Examine the air pressurizing valve (Schrader) for damage. The cap should be in place to
prevent leaking. Inspect the valve assembly for corrosion or damage to hose thread
connections. Replace valve assembly or component parts as necessary following the proper
depressurization and recharge procedures.
12. Install hose and nozzle assembly.
13. Install new tamper seal and record service data on the extinguisher inspection tag.
14. Rehang the extinguisher on the wall hanger bracket making sure that it fits the hanger bracket
properly
– replace the bracket if necessary. Note: When a Loaded Stream/Anti-freeze charge
is used to freeze protect this extinguisher, a complete discharge and maintenance is required
annually. Use only the Amerex Model 506 charge and follow the instructions printed on the
carton. Reuse of the 506 charge is permitted if the charge is reclaimed in a clean pail and the
freeze point is verified. To verify the freeze point, pour the loaded stream solution into a 300 ml
graduated container and check the specific gravity with a hydrometer. A minimum specific
gravity of 1.330 will assure freeze protection to -40ºF. A lower specific gravity means that the
charge should be replaced.
RECHARGE
RECHARGING (NFPA-10) The replacement of the extinguishing agent and includes the expellant for
this type of extinguisher.
WARNING:
a. Before attempting to recharge be sure this extinguisher is completely depressurized.
b. Use a regulated pressurizing source (either air or nitrogen). Set the regulator no more than 25
psi (175 kPa) higher than the gauge operating pressure.
c. Check and calibrate regulator gauge at frequent intervals. The regulator gauge should be used
to determine when the intended charging pressure has been reached. Do not use the
extinguisher gauge for this purpose.
d. Never leave an extinguisher connected to a regulator of a high pressure source for an extended
period of time. A defective regulator could cause the cylinder to rupture due to excessive
pressure.