SENTRY Carbon Dioxide Hand Portable Fire Extinguishers
Operation, Inspection, Service and Maintenance,
and Recharge Manual (Part No. 429425)
PAGE 8 REV. 05 2018-OCT-11
MAINTENANCE
MAINTENANCE (Continued)
9.
5 lb Extinguisher Only:
Remove and inspect horn
assembly as follows:
a. Using open end wrench, rotate hex swivel in counter-
clockwise direction to remove from valve assembly.
See Figure 3.
FIGURE 3
004996
b. Check tube for any blockage.
c. Reassemble hex swivel to valve body by threading
clockwise onto hole in valve body and wrench tighten.
10.
10 lb, 15 lb, or 20 lb Extinguishers Only:
Inspect
defusing holes on valve to make sure they are not
blocked. See Figure 4.
FIGURE 4
004995
11.
5 lb Extinguisher Only:
Assure nut attached to hex
swivel rotates freely but not loosely.
12. Check siphon tube by shaking entire extinguisher. A
metallic rattling noise indicates separation of siphon tube
from valve.
13. Follow instructions in Recharge section to empty and
recharge extinguisher.
14. Return extinguisher to its designated location.
15. Personnel making maintenance checks are usually
required to keep records by way of marking a tag
attached or affixed to the extinguisher and/or in a
permanent file. Your precise guide to record keeping
requirements should be the applicable company, local,
state or federal authority having jurisdiction.
16. Record the date of recharge on the tag (Part No. 2364)
affixed or attached to the extinguisher and in your
permanent file record in accordance with company, local,
state or federal codes, regulations or standards.