5. Insert new batteries according to diagram inside battery
compartment.
6. Replace the pneumotach assembly and tighten the two screws
on the bottom until the pneumotach is securely in place.
7. Recalibrate the PneumoCheck (see p. 34).
REPLACE
W I T H
WELCH
ALLYN
NO.72500
BATTERIES ONLY. USE OF BATTERIES OF OTHER MANUFAC-
TURE MAY CAUSE RISK OF FIRE OR DAMAGE TO THE UNIT.
40
