Closing the RBRcervata
Place the RBRcervata electronics and connector end-cap assembly back into the pressure housing.
The battery end-cap has a small metal alignment pin which slots into a hole on the mating face of the pressure housing. If the alignment pin is correctly aligned, only a small push should be required to insert the end-cap assembly.
Do not attempt to force the end-cap and do not begin torquing the retaining bolts until the end-cap is fully seated into the pressure housing.
Re-insert the retaining bolts.
Torque the retaining bolts to 1.7N-m (15 in-lbs) using a 5mm hex torque wrench/driver.

Note the position of the alignment pin

The alignment pin partially seated in its hole