OM-235 369 Page 17
4-3. Maintenance And Storage
Replace damaged or dirty filter. Do not wash filter, clean with compressed air, or reuse
dirty filter.
Never use solvents or abrasive cleaning solutions to clean the helmet cooling system.
Keep water and other fluids out of blower assembly.
Replace shroud after 50 washings. Shroud loses its fire retardant properties with re-
peated washing.
For best performance clean the equipment after each use. Use a soft cloth dampened with a mild soap
and water solution to wipe all external surfaces clean. Allow to air dry.
Product usage, workplace contamination levels, and other factors affect the life of the filter. Replace
filter if air flow is reduced due to a dirty filter (see Section 3-6).
Inspect flexible tube and replace if damaged or if inside of tube is extremely dirty.
If the helmet cooling system will not be used for an extended period, remove the filter and battery and
store in a clean, dry place free of solvent-based vapors them and at a temperature of −4° to 86° F (−20°
to 30° C). Charge battery to 50 percent capacity before storage.
4-4. Helmet Cooling System Troubleshooting
Trouble Remedy
Blower assembly does not
supply air to helmet.
Press Power button.
Dead battery; recharge battery (see Section 3-5).
Remove tape from battery terminals (new battery only).
Verify battery contacts are clean and free of obstructions.
Remove blockage from blower assembly outlet and tube.
Blower assembly runs for
short time even though
battery is fully charged.
Be sure battery is properly connected to battery charger.
Replace battery.
Replace charger.
Battery Level red light is
on or flashing.
Charge or replace the battery. The blower assembly will operate
for about 15 minutes after the light starts flashing.
Blower assembly is
pulsing on and off.
Charge or replace the battery. The blower assembly will operate
for about 15 minutes after the light starts flashing.
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