HomeMy WebLinkAbout311.004 - Aerial Ladder Supplied Air SystemsEffective Date: August 2008 Shane Brown, Fire Captain
Current Revision Date: 02/21/2024 Section 311.004
Next Revision (1) Date: 02/21/2029 Page 1 of 5
300 Training and Equipment Manual
SECTION 311.004 AERIAL PLATFORM SUPPLIED AIR SYSTEM
PURPOSE
Aerial Platform Supplied Air Systems allow a firefighter at the tip of the elevating
platform to connect their MSA self-contained breathing apparatus (SCBA) to the
platform’s supplied air system while maintaining a 30-minute air supply on his/her back
in case of an emergency.
APPLICATION
Any time firefighting personnel are in the basket of an aerial platform in an Immediately
Dangerous to Life and Health (IDLH) atmosphere; they may either connect to the
apparatus air system or utilize their SCBA.
OPERATIONAL POLICY
The MSA RIC pack should be part of the cache set up to support a Rapid Intervention
Crew.
OPERATIONAL GUIDELINE
This section intentionally left blank.
PROCESS
1. Supplied Air System:
The truck-mounted breathing air system consists of six components
(See Figure 1).
Fresno City Fire Department
Effective Date: August 2008 Shane Brown, Fire Captain
Current Revision Date: 02/21/2024 Section 311.004
Next Revision (1) Date: 02/21/2029 Page 2 of 5
(Figure 1)
a. H air cylinder mounted at the base of the ladder (See Figure 2).
(Figure 2)
b. Low air alarm which activates when the cylinder reaches 25
percent of capacity (See Figure 3).
(Figure 3)
Effective Date: August 2008 Shane Brown, Fire Captain
Current Revision Date: 02/21/2024 Section 311.004
Next Revision (1) Date: 02/21/2029 Page 3 of 5
c. Plumbed airline leading up the tip of the platform.
d. A 1/4-turn shut-off valve at the platform (See Figures 4a and 4b).
(Figure 4a)
(Figure 4b)
e. Brass female foster coupling mounted near the platform (See
Figure 5).
(Figure 5)
Effective Date: August 2008 Shane Brown, Fire Captain
Current Revision Date: 02/21/2024 Section 311.004
Next Revision (1) Date: 02/21/2029 Page 4 of 5
f. Ten-foot hose with MSA interface pre-connected at the foster
coupling at the aerial platform (See Figure 6).
(Figure 6)
2. Procedures for Using the Supplied Air System:
a. The firefighter(s) in the platform don full personal protective
equipment (PPE), SCBA, and ladder belt.
b. The engineer turns on the large H-tank at the pedestal.
c. The firefighter ascends the ladder (breathing air, if needed).
d. The firefighter enters the platform and connects the ladder
belt to the platform D-ring (See Figure 7).
(Figure 7)
e. The firefighter removes the male end of the hose interface and
connects it to the UAC (Universal Air Connection) adaptor of the
SCBA. (If SCBA was charged, shut it off now).
Effective Date: August 2008 Shane Brown, Fire Captain
Current Revision Date: 02/21/2024 Section 311.004
Next Revision (1) Date: 02/21/2029 Page 5 of 5
Note: The low air warning alarm may sound if the SCBA was
charged. The alarm stops when the trapped air in the
hose between the first and second stage regulator is
exhausted.
f. The firefighter opens the 1/4-turn valve located next to the
interface. The firefighter is now breathing from the aerial breathing
air system.
Note: If the SCBA cylinder remains charged after connecting to
the supplied air system, the firefighter may continue to
breathe air from the SCBA. Therefore, to ensure the
firefighter has air for escape purposes, the SCBA is to be
SHUT OFF.
3. Escape or Shut Down Procedures:
a. Turn the 1/4-turn valve to the shut position.
b. Turn on the SCBA bottle (if air is needed).
c. Disconnect the interface hose from the UAC adaptor and stow it
back into its holster.
d. Detach the ladder belt from the platform D-ring.
e. Descend the ladder.
INFORMATION
This section intentionally left blank.
DEFINITIONS
This section intentionally left blank.
CROSS-REFERENCES
No cross-references recognized.