Donning Problems - Scott 2.2 Operating & Maintenance Instructions

USE OF RESPIRATOR CONTINUED...

DONNING PROBlEMS

1. Perform a personal check of the Facepiece and Head Harness and
address any donning problems. OSHA standard 29 CFR 1910.134
requires teams of at least two people for situations where this type of
equipment is used. Have your partner help you verify the facepiece
is donned properly.
Possible problems include:
a) Head Harness Strap twisted,
b) Head Harness off-center or not flat against the head,
c) Head Harness too high on the head,
d) Hair or clothing in the face seal,
e) Face seal rolled over inside the facepiece rather than flat against
the face
f) Facepiece is sitting too low on the face as evidenced by pressure
on the forehead or the facepiece making contact with the throat
area permitting a break in the seal.
The illustrations below depict the AV-3000 HT.
HARNESS STRAP
TWISTED
FACE SEAl
ROllED OVER
DONNING PROBlEMS
If any donning problems are found, remove the facepiece and re-don
the facepiece correctly.
2. Proceed to the BEGIN USE OF THE RESPIRATOR section of this
instruction and perform a NEGATIVE PRESSURE lEAK TEST as
instructed.
P/N 595279-01 Rev. B 5/14
HEAD HARNESS HEAD HARNESS
OFF CENTER
FACEPIECE
TOO lOW
FIGURE 12
Page 26 of 48
I F A N y D O N N I N G P R O B l E M S A R E
FOUND, REMOVE THE FACEPIECE AND
R E - D O N I T C O R R E C T ly. U S E O F A N
IMPROPERly DONNED FACEPIECE MAy
lEAD TO EXPOSURE TO THE HAZARDOUS
ATMOSPHERE WHICH COUlD RESUlT IN
SERIOUS INJURy OR DEATH.
TOO HIGH
WARNING