Scott 4.5 Oxygen Equipment User Manual


 
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4. When replacing batteries on respirators equipped with Harness
and Backframe, P/N 804173-XX, position respirator with the cyl-
inder down exposing the battery cover on the back of the Sensor
Module, as shown in FIGURE 8.
5. To remove battery cover, first loosen all 4 cover screws 1 or 2
turns each, then fully loosen the screws so the cover can be re-
moved. Carefully remove cover and set aside.
6. Remove used batteries from battery compartment by lifting edge
of batteries at contact end, using a finger or the flat blade of a
screw driver, being careful not to damage battery contacts or seal-
ing rib around battery compartment.
7. Install two (2) fresh new batteries. Always replace both batter-
ies at the same time. Use only pairs of the following: Eveready
Alkaline No. 522 or EN22, Duracell Alkaline No. PC1604 or
MN1604, or for increased service life use Ultralife Lithium Battery
No. U9VL. Be sure batteries are installed with the terminals posi-
tioned as indicated by symbols molded in bottom of battery com-
partment.
8. The battery cover must be installed so that it is water tight after
replacement. Clean the sealing rib around battery compartment
and sealing face of the cover, shown in FIGURE 9, by wiping with
a clean damp cloth to remove any dirt or foreign matter which
might prevent a proper seal. Check cover gasket for tears or
cuts. If damage is found, remove respirator from service and tag
for repair by authorized personnel.
FIGURE 8
BATTERY COVER
COVER SCREW
(4 PLACES)
FIGURE 9
BATTERY COMPARTMENT AND COVER SEAL
SEALING RIBSEALING AREA
BATTERY REPLACEMENT CONTINUED ON NEXT PAGE...
9. Install battery cover and evenly tighten 4 cover screws by moving
around the cover in a clockwise direction, turning each screw 1 or
2 turns at a time until cover is fully seated. On Backframe, P/N
804415-XX, reinstall the Sensor Module by sliding in backframe
until retaining spring snaps into place as shown in FIGURE 6.
CHECK YOUR WORK!
BEFORE ASSEMBLY OF BATTERY COVER,
CHECK TO SEE BATTERY IS A FRESH, NEW
BATTERY OF THE TYPE INDICATED AND THAT
EMS HAS BEEN INSTALLED PROPERLY.