Sabre Vision 3 User Instructions - Vision 3
VISION 3
4
3. PRE-USE AND
MONTHLY CHECKS
3.1 CHECKS
1.
Check that the facemask is clean
and undamaged.
2.
Check that the visor is free from
blemishes that might impair vision.
3.
Check that the head-harness/head
net is complete and in good condition;
and that the straps are fully slackened.
4.
On the apparatus intended for use,
check that the orange O-ring on the DV
outlet is clean and in good condition.
3.2 PRE-USE TESTS
1.
Fit the DV of a breathing or airline
apparatus, for which VISION 3 is
approved, to the facemask.
Note:
If VISION 3 is to be used with RAS, fit
filter and filter cover after first ensuring
that the filter and filter O-ring are clean
and in good condition.
2.
Check that the red locking catch
engages fully. Twist the DV gently to
confirm that it has.
3.
Open the air supply valve fully.
3.2.1
Facemasks with a Web
Harness
1.
Hold the head-harness lower
straps, place chin in chin-cup and pull
straps over back of head, brushing back
hair from under faceseal.
2.
Tighten
harness
straps
in
sequence, Bottom, Middle, Top. DO
NOT over-tighten.