10-014357-01EN, Rev. 2, January 2022
Chapter 442
3. Loosen the two thumb screws securing the battery compartment cover (Figure 4-2
on page 42).
Figure 4-2 Cover thumb screw
4. Remove the battery compartment cover (Figure 4-3 on page 43).
5. Remove the used battery from the battery compartment.
6. Ensure that the gasket around the battery compartment cover is clean and in good
condition.
7. Install a new battery in the battery compartment.
8. Make sure that the battery connectors align with the connectors in the battery
compartment.
9. Install the battery compartment cover, making sure that the tab on the cover fits
the slot on the bottom of the 72DL PLUS gauge.
10. Tighten the two thumb screws on the cover.
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