6
FIGURE 4
FIGURE 5
INFLATING YOUR PFD
Follow the below procedures to inflate your PFD:
1. MANUAL INFLATION
Activate the inflation system by jerking firmly downward on the
pull-tab (Fig. 4). The PFD should fully inflate within five seconds.
2. AUTOMATIC BACKUP INFLATION
(FOR MODELS MD3183 AND MD3184 ONLY)
When the inflator is lowered more than about four inches in the
water, the hydrostatic valve opens and lets the water meet the water
sensitive element that in turn releases a stainless steel coil spring. The
spring then drives a needle into the end of the carbon dioxide (CO
2
)
cylinder, which is now punctured so that the CO
2
instantly fills the
PFD. Total buoyancy is normally reached within four to five seconds.
Once the PFD is inflated, the CO
2
will slowly escape through the
fabric over time. A slight reduction of pressure will be observed
after several hours of inflation. Topping up by oral inflation may be
required in the event of very prolonged immersion.
SEE SPECIAL CONSIDERATIONS FOR INFLATABLE DEVICES.
FIGURE 3
MD4031
MD4032
Manual Inflator
Automatic Inflator
DONNING YOUR PFD
MANUAL INFLATION
ORAL INFLATION
