Oxygen Breathing Apparatus (OBA)

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Fire Station

TM-55-1905-223-10 Landing Craft Utility (LCU 200 Class) NSN 1905-01-154-1191 Manual

FIGURE 2-59. Portable Fire Pump (P-250) (Sheet 1 of 3)

TM 55-1905-223-10

Table 2-1. Description of Operator's Controls and Indicators - CONT

Key

Control or Indicator

Function

Oxygen Breathing Apparatus (OBA) (FIGURE 2-58)

Timer

Provides a check of time remaining. Timer

bell will ring for 8-10 seconds continuously.

Pressure Relief

Vents overpressure automatically. Tab provides

Valve and Pull

manual release.

Tab

Canister Release

Releases canister from harness.

Tab

Canister Seal

Protects chemicals from moisture until canister

is ready for use.

Candle Cover

Protects candle when not in use.

Lanyard

Releases candle firing pin when pulled.

FIGURE 2-58. Oxygen Breathing Apparatus (OBA).

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